Never in the field of Human conflict have so many hampered, limited and controlled so few as in the air campaign in North Vietnam. (Churchill + HW Baldwin)
Note - These articles are a compacted summary of a rather large topic and cannot include every detail.
The Muppet Show that was Lyndon B Johnson, Robert McNamara, and friends demonstrating how they didn’t have a clue when running Rolling Thunder from the White House was certainly almost criminal if not treasonous. However, the lack of understanding didn’t stop there because the SAC dominated US Air Force was also trying to run things from afar leading to some very strange policy decisions for those in the field.
Air to Air Training in Vietnam
To fight and use guns A-A you need to be trained in the first place, if you wish to become experienced that is.
If you remember the pilot comments from Part 1 you may have noticed the ones from the USAF seemed to include comments regarding poor training and back seat drivers…….
Not wanting to fight a long war with the same group of pilots the USAF set up a policy that would rotate the available pilots. USAF policy was thus to fly a tour which was 1 year in South Vietnam, or 100 missions over North Vietnam. Unfortunately, the war went on longer than expected and basically, the USAF had problems getting enough pilots to fill the roles. One great way [or not] around this was to lower standards and send through pilots that may have been washed out pre-war. Part of policy was to produce “universal pilots” that could in theory fly any aircraft, so yes transport pilots who perhaps never had the aptitude to fly fighters now transitioning to fighters and being sent to Vietnam. The Replacement Training Units (RTUs) produced pilots poorly trained in A-A because of the USAFs corporate beliefs that ACM among inexperienced pilots would lead to accidents. USAF culture at the time was obsessed with flying safety. [Dying in combat due to lack of basic training was not on the Health & Safety spreadsheet perhaps!] Another problem was the time it took to train A-A didn’t quite fit in with the time they wanted to spend training a pilot before sending them into combat (fixed at 6 months at one point). By 1967, 200 pilots a month were entering training, however the quality had deteriorated to a point where they were having problems completing the landing/take off part let alone the rest! To add to the mess the USAF had too many Navigators and not enough Pilots. So, what did they do? That’s right they started sticking 2 pilots in each F-4 as policy. The ‘genius’ idea being that the pilot in the back would learn the systems then move to the front seat. In reality it seems the pilot in the back was a waste of a pilot that was not trained properly or interested in learning the radar systems. This and other factors lead to the two-man crew being anything but an effective team in combat!!
F-4s and F-105s around a KC-135 (USAF)
US Navy Training
Unlike the USAF the USN couldn’t lower the bar /standards to get more pilots because they had to be able to land on a carrier, and it was decided early whether they were fighter or heavy. Because of this USN pilot tours were typically longer than USAF ones (over 100 missions up North) and pilots would fly 2 combat cruises every 14 months by policy from 1967 to ensure there was some rest period.
Unlike the USAF, the Navy used highly trained, and dedicated RIOs (Radar Intercept Officers) in the back seat, that funnily enough worked a lot better.
F-4Bs from VF-111 Sundowners (US Navy)
How Rolling Thunder changed air to air training (or not)
Decided the poor performance during Rolling Thunder was more related to technical issues, and actually reduced air-to-air training after 1968 if you could believe something so ridiculous [the 2 pilot F-4 policy was at least rescinded!].
Although it was recognised by most it needed to change urgently, the internal politics and policies meant that was not happening. Real change only happened after 1972 with the change in high level staff and attitudes leading to the creation of programs like Red Flag.
After the dismal F-4 air-to-air results the USN decided its F-4 pilots had not been adequately trained properly. Being ‘fleet defense’, training was based on using missiles and they had even abolished the Fleet Air Gunnery Unit in that time. Thus, air-to-air combat skills had deteriorated. [note: this didn’t apply to the well-trained F-8 crews of course that had far better results]
This lead in 1969 to the creation of the Navy Fighter Weapons School (Top Gun) to get the Navy F-4 crews back to speed. The Navy also improved the technical side - including better over land detection with the ALQ-91 ( Similar to ‘Combat Tree’), and had significantly better AIM-9 versions such as the D/G/H.
F-4J from VF-114 (US Navy)
How did the different attitudes to training work out for the USAF?
During Linebacker 1 & 2 the US Navy kill ratio against MiGs was 6-1 and the USAFs was 2-1 however the kill ratios don’t include all the factors e.g. USAF F-4D/Es had Combat Tree, flew different Route Packs etc.
So, to illustrate how inept USAF training really was at the end of US involvement in the war.
In August / Sept 1972 a group of USN F-8 pilots spent a few weeks at Udorn RTAFB flying A-A training (or DACT) against USAF F-4 crews of the premier USAF MiG killing wing.
The well-trained F-8 pilots [who had been used to dueling with USN F-4 Top Gun pilots] embarrassed the USAF F-4 crews, and were appalled at the tactics, training and lack of skill from a supposed A-A unit.
An F-8 pilot said,” The contest between the F-4 and F-8s was so uneven at first we were ashamed by the disparity. The sight that remains in my mind is a chilling one for any number of MiG pilots must have identical views. The pitiful sight of four super fighters [USAF F-4s] in front of you all tucked in finger four, pulling a level turn. An atoll fired anywhere in parameters would be the proverbial mosquito in a nudist colony and wouldn’t know where to begin.” (Clashes by ex USAF F-4 veteran Michel III)
The USN F-8 pilots felt the USAF crews needed basic instruction, not just training missions!
Also consider that some of the USAF pilots were instructors or graduates of the USAF Fighter Weapons School, that was still preaching obsolete useless tactics and was resistant to change. This only confirmed what the USAF pilots already knew (they were so far behind). The USN report when sent to PACAF was dismissed by some as inter-service bias it seems.
This next account sums things up perfectly:
In 1974 the Air Force reassigned me from an overseas assignment in England to Nellis. When I arrived, I had over 1,200 hours in the F–4, including 365 combat hours. I had never flown a dissimilar air combat sortie (DACT). I had never carried a training AIM–9 and had not even seen one since my combat tour four years earlier. I had never used a gun camera. The only tactical formation I had flown was Fluid Four/Fighting Wing. I had never intercepted a target at low altitude. In other words, I was a typical F–4 pilot with a combat tour. (CR Anderegg - who went on to fly the vastly superior F-15 along with some actual A-A training!)
F-4Bs of VF-114 (US Navy)
The not so mysterious case of the VPAF Aces
The first batch of VPAF (Vietnamese Peoples Air Force) pilots were sent in 1956 to China and were being trained on MiG-17s by 1960 in both China but primarily in the Soviet Union. The MiG-17 had no missiles initially and thus air combat employing guns had to be taught, so training included things like dogfighting.
Drop outs were high with only around 20% of the pilots passing by the mid-1960s (the rest becoming ground technicians). This was lower than other Soviet ally nation pilots who typically had a better baseline education and had often already flown aircraft. [some of the Vietnamese had literally never seen an aircraft before]
Over North Vietnam the MiGs became part of an Integrated Air Defence system (IADS) and had to fit around the AAA and later SAM defenses flying in restricted areas and altitudes and often tied to the GCI (Ground Control Intercept) stations. The VPAF were also consistently changing tactics that the pilots had to adapt to. However, the MiG pilots mostly had only one primary role and that was air-to- air combat.
Being outnumbered but often having better situational awareness they often fought ambush “hit and run” tactics in small numbers. [this was smart!]
What we can deduce is:
They didn’t fly a 100-mission tour then go home, they had to fight until death. Fighting for their home land probably meant motivation and dedication were not an issue. [Unlike the US, the VPAF were fighting a ‘total war’] If they were shot down and survived then they were still on home turf. With the experience and training some of these pilots were no doubt very skilled flyers. So, for example out of 18 VPAF MiG-21 pilots given official Ace status, 16 of them were shot down and some of them were shot down 3 times!
MiG-21MF Fishbed with AA-1s and AA-2s (Wikipedia)
Let’s do the myth and mystery of Colonel Tomb
Prior to better information the ‘13 kill ace, Colonel Tomb’ was apparently shot down and killed on 10 May 1972 in a famous (and very close) 1 v 1 MiG-17F v F-4J dogfight against US Navy Top Gun Graduates Randy Cunningham/Willie Driscoll.
Willie Driscoll in a 2018 podcast describes how capable he thought the pilot was. [but still also thinks he had 13 kills to his name].
Showtime 100 downs a MiG-17 (dogfighthistory.be)
In 2007 A document called On Watch was declassified and released by Freedom of Information by the National Security Agency (NSA). In the section “Comrade Toon Flies the unfriendly skies”, it seems that NSA SIGINT analysts were able to unlock the MiG pilots callsign system and had identified an ace who flew out of Phuc Yen called “Toon”. Head of the Seventh Air Force General Momyer wanted him out of the skies and it is said became obsessed with getting rid of him. It states:
“The SIGINT detachment alerted Momyer’s HQ whenever Toon was scheduled to fly a mission, and Momyer would send his planes aloft to hunt down the Red Baron of North Vietnam.”
It seems that Toon was quite adept at avoiding these aircraft and one dark night [no date] after taking off from Vinh (South NVN) in a MiG-21 and avoiding the US fighters he intercepted a flight of B-52s and fired 2 missiles. One failed but the other lodged into the wing of a B-52 and didn’t detonate. Despite this the B-52s, following standard procedure ditched their ordnance and so he had a mission kill anyway.
It states they were never able to catch him (or perhaps it meant "them" ?).
Trying to match this up...........In 1971 MiG-21 Ace Dinh Ton appears to be the only Ace [6 claims / 4 match up] involved in intercepting B-52s from South NVN. On the 4th October he took off from Dong Hoi (near Vinh), but was unable to fire on the B-52s because of the Escorting F-4s.
On the 20th November Hoang Bieu took off from Vinh [MiG-21] as a diversion and another pilot (Vu Dinh Rang) was able to fire two R-3S Atolls [from his MiG-21] at a B-52 and one of the missiles hit and damaged the bomber. This was the first successful intercept of a B-52 according to the VPAF [ USAFs "War Above The Clouds" does mention a Missile fired from a MiG at B-52s on the 20th November during Commando Hunt VII - causing the mission to be called off ]
So, although it looks like there really was an ace called Toon I do wonder if they were able to see everything and not still tracking different pilots.
If [big if] the real Toon was Dinh Ton, then he was eventually shot down on 11 Sept 1972 in a MiG-21U by a VMFA-333 F-4J (Lasseter/Cummings) Both Ton and the backseat IP ejected safely.
No VPAF pilot claimed more than 9 kills, the 13 number most likely came from VPAF MiGs photographed and sent to the media at the time including May 1968 a photo of MiG-21PFV (4326) with 13 red stars (kills) on its nose and MiG-17 (3020). In reality the 13 kills were the sum of those claimed by several different flyers of that Jet.
MiG-17 Fresco (warbirdsresourcegroup.org)
So, who did Driscoll / Cunningham shoot down then on the 10th May?
Four MiG-17s were scrambled to intercept the raid on the Hai Duong Railway yard that Showtime 100 (Cunningham/Driscoll) was covering.
Pilots Do Hang, Tran Van Kiem, Nguyen Van Tho were 923rd regiment MiG-17 pilots hit by missiles on that date but nothing conclusive describing a prolonged 1v1 fight. (Hang and Kiem were both killed)
There were J-6s (Chinese MiG-19s) also in combat that day (925th regiment) but over different areas. Only Le Duc Oanh was shot down on the 10th being hit by a missile and ejected (later died of injuries) but not described as a prolonged 1v1 dogfight. Le Van Tuong was the other fatality when he overran the runway and turned over.
No MiG-19/J-6s claims were made by the US on the 10th despite one being shot down - they were probably (understandably) misidentified as MiG-17s it seems by US pilots in the heat of combat.
Shenyang J-6 / MiG-19S Farmer (vnmilitaria.com)
When it comes to A-A guns over Vietnam let us not forget
The F-8 Crusader
Unlike the USN F-4 pilots the F-8 community was well trained in traditional BFM/ACM from the start and could make use of the 4 cannon in its nose providing they didn’t fire them under high G loading that caused them to Jam! (Leading one pilot to describe the guns as very unreliable under High G loading). This training served them well and by the end of Rolling Thunder the stats would suggest they did well compared to the F-4 units, which of course was replacing the F-8s at that time.
Out of the 19 A-A kill claims, 3 were with the gun.
The F-105 Thunderchief
In somewhat of a paradox the USAF F-105 had the most encounters over Vietnam with MiGs and racked up about 26 MiG-17 kills (out of 140 gun engagements) with its M61A1 Gatling Gun.
Some F-105 pilots had complained of poor A-A training in Red Baron. Jack Broughton described a different community with many old heads from Korea who knew their A-A anyway (considered themselves fighter jocks) and trainees were taught when they came to theatre.
Some probable reasons for the gun kills include:
The F-105 often didn’t carry AIM-9Bs due to available pylons or sometimes lack of availability. The AIM-9B was inferior to the AIM-9D used by the F-8. The M61A1 was far more reliable than the F-8s (MK-12) guns, only failing in about 12 percent of firing passes Being ‘All Aspect’ the gun was easier to employ over the restrictive AIM-9B envelope.
F-105D - king of the Brrrt (Global Aviation Resource)
Guns on modern fighters (the F-35A)
The last US A-A (manned) gun kill was in Feb 1991 when an A-10A shot down an Iraqi Mi-8 Helicopter. There is also a 1992 video of a FAV F-16A gunning down an OV-10E in a Venezuelan coup. But who cares really because guns have been used in all the low-key wars since then. In fact, jets including the F-14/16/15/18/Harrier have all used guns to strafe enemy personnel and equipment on a very regular basis. So, as we see just in 1963 with the F-4E, the requirement for a gun for Air to Ground is just as strong now as it was then.
Let’s look at why the USAF may have put an internal gun on the F-35A, according to a 2007 paper by Colonel Charles Moore who was so adamant the F-35A needed a gun that he writes:
Regardless of the opinions of the USMC, USN or (F-35) Joint Program Office, the USAF must not become dismayed or discouraged by the difficulties in achieving the capabilities it has determined it required. Within the air to air and air to ground environments, the gun has proven to be a reliable and irreplaceable weapon. Even if Lockheed [Martin] declares it will not be able to fully meet the requirements and specifications the USAF desires, disallowing requirement relief sends a strong message that the capabilities offered by the gun are not negotiable.
Important these are “Arguments For” only (there are probably very valid arguments against) and quite a few things can change in 11 years!
His arguments include:
On A-A use
A-A missiles do not have a 100% PK, especially against advanced adversaries. Its limited missile supply could be exhausted quickly if faced by a significant number of low tech adversaries. The F-35 may not be able to egress from all adversaries based on its slower speeds and may need to stay and fight. When defending other assets, it may need to stand and fight regardless. Gun employment is less reliant on on-board systems working such as radar. All the modern tech in the world cannot protect an aircraft from the oldest weapon in A-A combat [when in range]. The Gun is simple, efficient, effective and always available. On Gun Pods
It is seldom known when you will need a gun system so carrying it only when needed is not practical. Risk of RCS (Radar Cross Section) increase. Risk of having performance issues like the previous gun pods e.g. GAU 5 (Pave Claw) or SUU16/23 Additional logistics required. On A-G use
Despite being poor in power compared to PGMs and IAMs, the gun will remain after those have been expended and can be used if called upon. This happened many time in Desert Storm, Enduring Freedom and Iraqi Freedom. Can be used where PGM/IAMs are too powerful and can be prohibited or ill-advised such as urban situations. Can be used on moving targets. Gun considered the only true multi role weapon to be carried. Can be used to supress (rather than kill) and provide just a warning. Sometimes offers a quicker reaction time because of less setup over other ordnance. Less dependent on targeting sensors so can be used in event of failures with those.
F-35A Lightning II - gun is port side (USAF)
Clashes (M.L.Michel III, 1997) Naval Institute Press
Thud Ridge (J.M.Broughton, 1969) Crecy Publishing
F-105 Thunderchief MiG Killers of the Vietnam War (P.Davies, 2014) Osprey Publishing
F-8 Crusader Units of the Vietnam War (P. Mersky, 1998) Osprey Publishing
MiG-21 Units of the Vietnam War (I.Toperczer, 2001) Osprey Publishing
MiG-17 and MiG-19 Units of the Vietnam War (I.Toperczer, 2001) Osprey Publishing
MiG-21 Aces of the Vietnam War (I.Toperczer, 2017) Osprey Publishing
MiG-17 and MiG-19 Aces of the Vietnam War (I.Toperczer, 2017) Osprey Publishing
USAF McDonnell Douglas F-4 Phantom II (P.Davies, 2013) Osprey Publishing
USN McDonnell Douglas F-4 Phantom II (P.Davies, 2016) Osprey Publishing
US Navy F-4 Phantom II MiG Killers 1972 -73 (B.Elward & P.Davies, 2002) Osprey Publishing
US Navy F-4 Phantom II MiG Killers 1965 -70 (B.Elward & P.Davies, 2001) Osprey Publishing
USAF F-4 Phantom II MiG Killers 1972 -73 (P.Davies, 2005) Osprey Publishing
USAF F-4 Phantom II MiG Killers 1965 -68 (P.Davies, 2004) Osprey Publishing
The Revolt of the Majors: How the Air Force changed after Vietnam (M.L.Michell III)
RED BARON Project Volume I - III (1969) Weapon Systems Evaluation Group (WSEG)
The Need for a Permanent Gun System on the F-35 JSF (Colonel C.Moore, 2007) Air Force Fellows Air University, Maxwell AF Base
SIERRA HOTEL (C. R.ANDEREGG, 2001) Air Force History and Museums Program
All the Missiles Work (Fino, SA, 2015) Air Force Research Institute
Research Study of radar reliability and its impact on life-cycle costs for the APQ-113. 114, -120 and -144 radars (1973). Technical report by General Electric under contract to the USAF.
McDonnell F-4E Phantom II (Baugher J, 2002) online
ON WATCH Profiles from the National Security Agencys past 40 years (1984) National Security Agency
War from above the clouds (Head WP, 2002) Air University Press Maxwell AFB
Information on F-4E radar range from Forum entry by ex F-4 flyer Walt BJ (Bjorneby, Walter)
Willie Driscoll interview from Podcast Episode 009 “Vietnam Ace” (V.Aiello, 2018 ) http://fighterpilotpodcast.com/
Title photo credit USAF
Ahh that old familiar tale you say - of course, in the late 1960s the F-4 Phantom II finally had a gun installed, which meant that everything was better, magical unicorns danced around the sky and the Vietnamese MiGs would fall from the sky in droves!
Okay so that didn’t quite happen….......what did?
Note - These articles are a compacted summary of a rather massive topic and will discuss the F-4 and Guns in Vietnam mostly ignoring missiles. Vietnam will be used instead of SEA. And USN includes the US Marines for simplicity.
Very different F-4s and Air Forces (USAF v USN)
Firstly, with different equipment, ideas and ways of doing things the United States pretty much had different Air Forces in the US Navy (USN) and the US Air Force (USAF), so it is important to draw a big red line between them with a quick summary:
US Navy F-4 Versions in Vietnam
F-4B (F4H-1) – Second F-4 version but first major production version of the F-4. F-4J - Improved F-4B Major Differences compared to the USAF
Air to Air Refueling with Drogue and Basket Use of AIM-9B/D/G/H versions of Sidewinder only as Short Range Missile. Never fitted Guns, not even pods (outside of a brief trial with the GAU-4) Internal ECM equipment. Different Radars (AN/APQ-72, -59 & AWG-10 Pulse Doppler) Had no flight controls in the back seat In 1972 preferred used of AIM-9G/H Sidewinder over AIM-7E-2 Sparrow Used more flexible Loose Deuce A-A formation tactics Carrier and land based (Marines)
USN F-4J refueling drogue and chute style (USN)
USAF F-4 Versions in Vietnam
F-4C (F-110A) – Based on the F-4B with USAF changes. F-4D – Improved F-4C. F-4E – This is the (only) F-4 with the internal Gun. Major Differences compared to the US Navy
Air to Air Refueling with Boom Used AIM-9B/E/J versions of Sidewinder Used AIM-4D Falcon for periods over the AIM-9 on F-4D/E External Podded ECM equipment Different Radars (AN/APQ-100, -109 & -120 ) Use of Gun Pods (SUU-16 & SUU-23) Had some flight controls in the back seat In 1972 preferred use of AIM-7E-2 Sparrow over AIM-9 / AIM-4 Insisted on sticking to the obsolete / useless fluid four (Welded Wing) A-A formation tactics right to the end.
USAF F-4 nears the boom of a KC-135 in 1967 (USAF)
Why no gun on the F-4 to start with?
On the 18th September 1947 the United States Army Air Force (USAAF) became the USAF and with the limited budget constraints after WWII, Strategic Air Command (SAC) was seen as security priority and was thus given the major funding over the Tactical Air Forces (TAF).
SAC culture dominated the USAF in the early years along with its doctrine of strategic nuclear bombing with massive manned bombers. Tactical Fighters (F-100/F-101 etc) under this emphasis on SAC now had two roles:
Defend against enemy bombers as interceptors. (Air Defence Command / ADC) Low level delivery of tactical Nukes. (Tactical Air Forces / TAF) Apparently, Korea never happened because by the late 1950s bombing a target in a fighter within 750ft was more then good enough (with a Nuclear weapon) so not only conventional Air to Air training went out the window but also conventional bombing!
One Air Force general noted about this period, General (Curtiss) LeMay had deliberately loaded the Air Staff with bomber guys, who were not well acquainted with things like air superiority or air-to-air combat, and who wanted to destroy enemy aircraft on their airfields. In 1957, LeMay actually tried to eliminate the TAF, but the possibility of the Army developing its tactical air support arm overrode this idea, and later that year LeMay reluctantly gave the TAF more funds to keep its mission from being turned over to the Army.
Who needs fighters anyway? - the B-36 Peacemaker takes its toddler son for a walk in 1948 (USAF)
Some of this thinking was perhaps driving the US Navy with their F4 program in the 1950s. The USN had a requirement to intercept Soviet bombers attacking the fleet above 50,000ft out of the range of gun armed fighters and thus from 1956 the AIM-7 Sparrow III was to be the primary weapon with a gun as secondary. By 1957 however the gun was deleted from the design because the new AIM-9 Sidewinder was to be the secondary weapon.
Feeling in the USAF really was in some respects that the day of the gun had past, working at the Pentagon in Air Force Operations as a colonel in the early 1960s, Maj Gen Richard Catledge recounted his Pentagon experience with the antigun sentiment and General Momyer:
I realized this two-star, General “Spike” Momyer[,] ran the Air Staff—very strongminded individual, very knowledgeable individual, who did his homework on everything. . . . It was his belief and his concept that future airplanes would not have guns in them. There was no need for guns. I couldn’t believe this when I came across it in the Pentagon.
So I built a flip chart briefing, with my convictions, why we needed guns, more for air-to-air than for air-to-ground. . . . Anyway, I found it was an uphill fight. That every colonel, every major, in requirements, whose business I was getting into, believed as their
boss did. So I really went uphill.
I built my chart, got my ducks all lined up, and went to my boss, [Major General] Jamie Gough, and gave him that briefing. He said, “Well, it’s a good story, . . . [but] you are going to have to run this by Spike Momyer, and I’m not going with you.” . . .
So I went up, got the appointment, put my stand in front of his [Momyer’s] desk, and started in telling him why we needed guns in airplanes. Well at one point in this—he stopped me several times and gave me a few words on why we did not, and [that] essentially missiles had taken over. Missiles had taken over for air-to-air . . . and other kinds of munitions [had taken over] for air-to-ground, so there really was no need [for obsolete guns].
Well, I thought I had a pretty good argument, but didn’t convince him. I remember he’d beat on his table and say, “There will be a gun in the F-4 over my dead body.” That was his attitude.
Seems strange that despite the many limitations of missiles then, such as they couldn't be used at the close ranges guns were used at, and they had no way to ID aircraft Beyond Visual Range makes it look at if Momyer was towing a party agenda for flashy new technology. [Even if the technology was crap]
The USAF took on the F-4 as part of Defense Secretary Robert McNamara’s drive to get the services to use standard equipment with commonality. He was also interested in the conventional side of things and saw both the A-G potential as well as the A-A potential and thus the USAF received the F-4C (originally designated F-110A).
(Note: yes this was potentially one of the few things McNamara did that wasn’t a complete catastrophe!)
Of course, the F-4 wasn’t the only aircraft of its time without an internal gun (another reason seen given is that pilots would never have closed to gun range to take down a bomber carrying Nukes.)
Some other Interceptors of the era born with no internal Gun:
F-102 Delta Dagger F-106 Delta Dart (Some later got a gun under project Six Shooter from around 1969) Su-9/11 Fishpot Tu-128 Fiddler Su-15 Flagon MiG-25 Foxbat
Some Interceptors that had the gun removed:
Lightning Fmk3 CF-104 Starfighter (Early) A gun was later incorporated MiG-17PFU Fresco MiG-19PM Farmer MiG-21PF/PFV/PFS/PFM/FL (PFV and PFM used by the VPAF in Vietnam along with the gun armed F-13 and MF)
F-102A Delta Dagger interceptors (USAF)
Getting a gun on the F-4E
McDonnell first proposed an internal gun for the F-4 in 1961 however it wasn’t until a potential limited war in Vietnam looked likely in 1963 that this was taken more seriously by the military for Ground Attack / strafing. By 1965 combat experience determined that a gun was a requirement and it was trialed in the F-4, and thus the F-4E was born with a nose job and new APQ-120 Radar:
This shows the 22 modules (Line Replaceable Units / LRUs) required for the APQ-120 radar
Adding the gun solved all the problems yes?
The original gun muzzle caused a few problems. Firstly gas ingestion into the engine inlets caused engine flameouts and secondly it made a loud whistling noise that apparently notified the enemy troops (and their Dogs presumably ) long before the F-4 got there. The muzzle had to be redesigned and the later F-4Es have a longer gun muzzle under the nose.
Also not shown in the diagram above, the gun assembly and ammo drum took up a lot of space in the nose and the dish/antenna size was reduced.
The Westinghouse APQ-120 was an early ‘Solid State’ radar (derived from the APQ-109) and being Solid State must have helped in reducing the obvious vibration issue when you have a massive Gatling gun sitting next to 1960s electronics! Despite this it still exceeded the reliability requirements and was similar in that regards to the F-4D radar that had no gun in the nose.
Ex F-4 flyer Walt BJ stated that the APQ-120 in the F-4E had about 20-25% less range over the APQ-109 in the F-4D.
Didn’t the F-4E just wipe the floor now it had a gun?
During Operation Linebacker I & II (1972/73):
The USAF F-4E had 22 claims in 25 (known) engagements including 7 gun kills The USAF F-4D had 27 claims in 30 (known) engagements with no gun kills
So firstly, if you add an internal gun but still don’t train anyone to use it then despite any figures nothing really changes. Secondly the missiles and radars had improved since 1965 regarding close in capability and so the Gun was starting to look very secondary by now.
Considering the extra effort required for guns in skill, fuel, risk of collision, and making themselves more vulnerable, a missile would be the priority weapon regardless of the USAF training issues.
What about the gun pods?
Stop gap measures meant some squads using the 20mm SUU-16 and SUU-23 Gatling gun pods on the F-4C and D respectively – however despite some success these were somewhat inaccurate and the extra drag had a noticeable effect on range.
Looking happy to be here - SUU-23 Gun pod on the center line station of an F-4 (Clive Camm)
Some championed the Gun pod such as Korean war ace Col Frederik “Boots” Blesse after it became a useful strafing tool for South Vietnam sorties.
USAF Col Robin Olds was a tad less enthusiastic:
The gun pod wasn’t so much a speed penalty as an object of increased drag and fuel consumption. But that wasn’t my objection to the gun pod, I refused to carry it for 3 basic reasons;
It took the place of five or six 750 lb bombs. Only my older and more experienced fighter pilots had ever been trained in aerial gunnery, to say nothing of air-to-air fighting. There were perhaps a dozen of them in the 8th TFW. I had no intention of giving any of my young pilots the temptation to go charging off to engage MiG-17s with a gun. They would have been eaten alive. Instead they fought MiGs the way I taught them and did so with notable success.
The US Navy briefly trialed the 20mm MK4 (GAU-4) Gatling gun pod but this was determined to be useless in operation with technical difficulties and also meant the preferred configuration of center line drop tank only could not be carried.
The not so successful MK4 (GAU-4) gun pod at China Lake (Dave Woolsey)
Did the Navy not want an internal or any gun?
For the primary purpose of fleet air defense, ‘missiles only’ it seems was deemed adequate. When in combat over Vietnam some Navy pilots wanted it and others didn’t. The gun pod was not persevered with and even an offer of free SUU-16/23 pods from the USAF was turned down on one occasion.
We can deduce that if you reshaped the F-4J nose like the F-4E then you also have to reduce the radar dish size and forfeit range which might not be the best idea regarding fleet defense.
Simply plonking in the APQ-120 with less range and no useful lookdown/shootdown capability was probably not going to win USN favour. Even spending the money on a modified APG-59/AWG-10 still gets you reduced range at the end of it.
The APG-59/AWG-10 in the F-4J had some good lookdown techniques (for its time) and was considered superior. However even without the gun the F-4B/J Phantom avionics suffered from heavy carrier landings:
I had a USN F4J pilot in my back seat one night gunship escort mission (can't for the life of me remember why) and he marvelled at the radar pickup. I asked him why he thought it was so good when he was flying the J model. He told me after about 4 'standard' carrier landings the radar wasn't so hot anymore. (Walt BJ)
So, what did the Pilots say about Guns, Training, and Back Seat Drivers
During the Vietnam conflict a Secret project (Red Baron) took place which compiled every A-A engagement fought. As part of that the aircrews were interviewed where available, giving quite a mixed view.
3 April 1965 F-4B USN front seat pilot (with 1000 hours)
There is a need for a close in weapon as a backup on any mission……………….Guns would also be useful as an air-ground weapon (stopping a truck convoy, for example)
10 July 1965 USAF F-4C front seat pilot
Gun not necessary; it will get people into trouble. Would like capability to fire all missiles on the F-4 with Centreline Tank on. Less minimum range for missiles instead of guns…….Because lack of ACT at time of event, did not know how to manoeuvre the F-4 as well as he could later after some experience.
6 Oct 1965 USN F-4B front seat pilot
Fighter needs guns or short range missile……………..Turning and acceleration rate of MiG-17 was impressive. The MiG leader was aggressive and a good fighter pilot.
23 April 1966 USAF F-4C front seat pilot
Improve the performance of the AAM and the gun will not be needed…………Training safety restrictions severely limited air-combat-tactics training prior to deployment to the combat area.
23 April 1966 USAF F-4C front seat pilot
The need for a F-4 gun is overstated, although it would be of value if it could be obtained without hurting current radar and other system performance. If you are in a position to fire guns, you have made some mistake. Why after a mistake would a gun solve all problems. Also having a gun would require proficiency at firing, extra training etc. Have enough problems staying proficient in current systems. If the F-4 had guns, we would have lost a lot more, since once a gun dual starts the F-4 is at a disadvantage against the MiG.
23 April 1966 USAF F-4C front seat pilot
Felt that he had very poor air-combat-tactics background. Prior background was bomber and other multi-engine. Transition to F-4 oriented toward upgrading a qualified fighter pilot rather than training a pilot with no fighter background.
25 April 1966 USAF F-4C back seat pilot
Gun is not particularly desirable, if the performance of the aircraft is degraded by an external installation. Also, one might make the mistake of getting into a turning battle if a gun was available
25 April 1966 USAF F-4C back seat pilot
Capability of the F-4 is being wasted by having a pilot in the back seat. The pilot is not adequately trained as a radar observer. Need a radar expert in the back seat. The pilot back seaters main goal is to be upgraded to the front seat rather than master the radar.
26 April 1966 USAF F-4C front pilot
It is a fallacy to say that you can bring the F-4C home and land it solely from the back seat. You’ve got to blow the gear down and then there is no antiskid system; there is no drag chute handle; there is no fuel gauges or switches; you may be limited to using internal fuel; you can’t dump fuel or jettison tanks.
A gun would be nice in an F-4C as long as it was clearly understood it was only a weapon of last resort. Soviet fighters are more capable than US aircraft inside gun range.
29 April 1966 USAF F-4C back seat pilot
It was not necessary to have a pilot in the back seat of the F-4 except during night A-G missions when a pilot may more capably advise the aircraft commander. Actually, a radar officer would be more interested in the back-seat operation than a pilot would be.
29 April 1966 USAF F-4C front seat pilot
It would be undesirable and possibly fatal for an F-4 to use a gun in fighting with a MiG because the MiG is built to fight with guns and the F-4 is not.
30 April 1966 USAF F-4C front seat pilot
Training was not really adequate for this engagement, didn’t know what the back should do in a hassle such as this.
14 June 1966 USN front seat pilot
Guns would be most useful for the ResCAP role but not particularly valuable in the air to air role.
An F-4B from VF-111 Sundowners giving it some - just because (USN)
The F-4 Phantom II Dogfighter?
As we know the F-4 was not particularly the most agile fighter in theatre and turning at a slower speed was a bit of a problem. However, US fighters had seldom been the best turners in previous conflicts such as WWII (think F-6F Hellcat V Zero) ……power and speed could make up for it and were often better attributes to have.
In 1966 the US Navy flew “Project Plan” flying the F-4B against a series of fighters to determine how good it was in an Air Superiority role. It concluded that contrary to what F-4 pilots thought the F-4 was the best air to air fighter in the world (including the F-8), if the F-4 stayed fast.
To fly the F-4 however in BFM/ACM you needed to have training and a lot of experience (like most jets of this era). One particular characteristic of the hard-winged F-4 was “Adverse Yaw” at slower speeds where the pilot had to make the turn using rudder pedals instead of the stick. If the stick was used the chances of departing were very high – somewhat fatal in combat. Now stick a pilot in the cockpit with little training and you can see that in the heat of battle adverse yaw becomes quite serious (not just A-A but avoiding SAMs etc). Of course, pilots just simply avoided going anywhere near adverse yaw if they could however that meant they could never max perform the jet if they needed to in every situation.
Adverse Yaw was all but eliminated by adding leading edge slats to the F-4E with the 556 "Rivet Haste" Mod late 1972. Too late to have any real relevance for Vietnam though.
In Part 2 we look at the very different training aspects of the USN/USAF/VPAF, the F-105 / F-8 paradox and the myth / legend of Colonel Tomb.
i need help !!
hi guys, i have Strike fighters Project one and SF2 sims, but both have problems...
SF1 then i end a mission, the game close without error or anything (renders correctly)
SF2 ground rendering problems (the terrain disapears or renders over the aircraft, hiding it (i dont have crash or anything, only render problems)
my computer is a lenovo thinkcentre m70e
WIN 7 sp1
3.2ghz Intel 5800 processor
Intel g41 express chipset (i know, its a crap)
what can i do for repair at least one of this sims ?
View File Alternative F-4G(B) skin
Just something I whipped up real fast after I saw the loading screen of the renewed F-4G (65-66 USN)...
I noticed it wasn't overall green, but resembled the lizard scheme very much. So I fiddled around with
some different available skins (I think the lizard skin is TW and other parts came from the green standard skin of the aircraft)
and quickly made this to add some variation in an almost real life manner...
Credits and thanks to Wrench and Kevin Stein for the F-4G USN
Submitter Muesli Submitted 08/31/2019 Category F-4