Aircraft acceleration values?

[Spudknocker]

Hey Guys!  Quick question for all the modding gurus!  I have looked in all the knowlege base forums and cant find the answer to my question...

 

What values/Lines in the DATA ini of an aircraft effect the aircraft's acceleration?  

[yubba]

check thrust values,,,

that SH-3 I told you I worked on,, out of the box it took off like a rocket,,and it landed like a jet ,, I rolled the thrust value back and it's alittle more sluggish than the huey but I like the feel of it..

[Fubar512]

Hey Guys!  Quick question for all the modding gurus!  I have looked in all the knowlege base forums and cant find the answer to my question...

 

What values/Lines in the DATA ini of an aircraft effect the aircraft's acceleration?  

Static thrust is just one variable. Engine altitude tables,  engine efficiency tables, drag tables, and whatever your loadout is at the at time, all play a role in how an aircraft model  accelerates.

[Caesar]

As Fubar points out, there are a number of factors.  Not just Thrust to Weight, but also Thrust to Drag.  Engine thrust is NOT static; it changes based on altitude and airspeed.  An example I included in the F-14 flight manual is that the F110-GE-400 produces 23,600 pounds of installed thrust per engine at max afterburner at 0 airspeed and 0 altitude.  At Mach .6 at sea level, it produces about 30,124 pounds of installed thrust at max afterburner.  As such, an F-14B at Mach .6 at sea level in full blower is putting 60,248 pounds of thrust out the back of the jet!  As you increase altitude, the thrust numbers begin to drop due to thinner air.  However, thinner air = less drag, so you start to see higher maximum airspeeds.  An aircraft with an advertised max airspeed of 2.5M might only be able to achieve 1.2M on the deck, and only be able to hit 2.5 in clean configuration at beyond 40,000 feet.  Loadouts affect aircraft acceleration (and max speed) as well by increasing or decreasing drag.  A slick aircraft is going to accelerate better and hit a higher maximum speed than an aircraft carrying tanks, missiles and bombs.  Less stuff jutting out into the wind stream to slow the bird down, less drag for the engines to fight.

 

As Fubar also alludes to, the game considers this stuff!  There are not just the SLThrustDry= and SLThrustWet=, but also the AltitudeTableData, DryMachTable, WetMachTable for the engines, AND the aircraft's and weapon's drag tables as well.  All of these will affect aircraft acceleration.  Max speed and altitude are a bit more cut-and-dry, with the entries at the top of the data.ini being Ceiling and MachLimit.

[Spudknocker]

ya I figured haha ive just been trying to get the new strike eagles to slow down a bit haha