hornetfinn wrote:geforcerfx wrote:Here you go

Fighters 1-4 fuel t-w.jpg

Rafale is in the pack, typhhoon win's hands down and the F-35 and F-22 have there usual disadvantages (sensors built in, weapons bays), though the F-35 and Su-35 win fuel fraction for sure.

I think those numbers are a bit off. EF Typhoon and Rafale and SH seem to be fairly correct, but the weight for F-35A and F-22 seem to be quite a bit higher than official numbers. EJ200 manufacturers (RR and MTU) give it slightly lower thrust (20,000lbs) though which would give T/W of about 1.48 but still very impressive. LM figures for F-22 give it weight of about 47,850lbs (with 1/4th fuel) which brings the T/W to 1.46 with thrust of 35,000lbs per engine which might well be on a low side. Anyway F-22 and EF Typhoon definitely have the best T/W out of all those aircraft.

I get F-35A weight with 1/4 fuel to be about 33,600lbs (empty weight of 29,000 lbs as per DOT&E report) and thus T/W is about 1.28. With FF of 0.1 it gets to 1.34, being equal to Rafale. So EF Typhoon has about 10 percent higher T/W ratio to Rafale and F-35A in light configurations.

Of course if we top the tanks in F-35A, others need several large EFTs to come even close in range/endurance and will have serious performance reductionsa.

I once calculated the T/W ratios on different fighter planes in Excel using similar fuel loads compared ht the empty weights using the Gripen as a base for calculations. I tried to use as accurate data as possible.

Like this:

Gripen NG: Empty Weight 8000 kg, Fuel load 3400 kg

F-35A: Empty Weight 13200 kg (which is 65% greater than that of Gripen), Fuel load 5610 kg (again 65% greater than that of Gripen)

After calculations I found that the F-35A is better than the Gripen (both C and E), Super Hornet, Su-30 etc. And if you increased the thrust of the F135 by 15% (which is what P&W was promising at that time for future upgrades) it would (without any weight increases) make the F-35A the top dog beating Typhoon and F-22 etc. in T/W ratio.

Also naturally, using similar weapon loads on all planes will affect lighter planes more, i.e. adding 1000 kg of A2A missiles and pylons will decrease the T/W ratio of the Gripen more than it will decrease the T/W ratio of the F-35A.