DWCAce 19 Posted November 20, 2008 (edited) When dealing with military a/c, several types of fuels have been used throughout the years, and each has it's own density. Depending on how in-depth you want to be with your a/c or drop tanks, here are the service years, branches, and densities for jet fuels: JP-4 Density = 6.5 lb/gal (1951 - 1995, Primarily used by the USAF) JP-5 Density = 6.8 lb/gal (1952 - Present; projected to 2025, Primarily used by the USN, and other navies) JP-7 Density = 6.6 lb/gal (used by the SR-71) JP-8 Density = 6.7 lb/gal (1996 - Present, Primarily used by the USAF) Jet-A Density = 6.70 lb/gal (used by civil turbines) Example: 1x F-111 External 600gal Tank holds 3900lbs [600 x 6.5 = 3900] of JP-5 (I'm using JP5 since that's what was in service at that time). Now, to insert the fuel weight into the game, it must be converted from pounds to kilograms: 3900 (lbs.) x.45 = 1755 (kgs). Once you've converted the weight, insert it into the 'Capacity' box in the 'Fuel Tank Data' section in the weapons editor. Edited July 7, 2010 by DWCAce Share this post Link to post Share on other sites