## Wiki - TWR Calculation

The thrust-to-weight ratio is calculated by dividing the thrust (in SI units – in

newtons) by the weight (in

newtons) of the engine or vehicle. The weight (N) is calculated by multiplying the mass in

kilograms (kg) by the acceleration due to gravity (m/s^2). Note that the thrust can also be measured in

pound-force (lbf), provided the weight is measured in pounds (lb). Division using these two values still gives the numerically correct (dimensionless) thrust-to-weight ratio. For valid comparison of the initial thrust-to-weight ratio of two or more engines or vehicles, thrust must be measured under controlled conditions.

This is how I calculate for F110-129D engines KAAN have. We do not even know if TF35000 will give that thrust.

131 kilo newtons for each F110-129D engine. And gravity variable for acceleration at 9.8. Empty weight is (?)14.150 kilograms + 3500kg fuel + weapons payload not the full load to compare it to all the other fighters in the link I earlier posted which all were also carrying 3.5 tonnes to compare apples to apples since TWR changes with weight. So at least payload should stay the same to have some meaningful objective performance numbers. It adds up to:

1.07 =2x131,000/(14.150+3500)x9.8

Again the link to compare:

https://world-defense.com/threads/thrust-to-weight-ratios-of-all-fighter-planes.1316/