Daha önce sinodefenceforum'da bir kullanıcı açık kaynak bilgilerini ve bazı tahminleri kullanarak kabaca boş ağırlığı hesaplamıştı.
Merak edenler için aşağı alıntıladım.
https://www.sinodefenceforum.com/t/turkey-military-news-reports-data-etc.7329/page-300
I really wonder what the empty weight of the TF-X will be. We have some figures of how much certain structures weight.
Forward fuselage: 1470kg
Midbody with wings: 2125kg
Aft fuselage: 3945kg
Horizontal stabs: 2x 235kg=470kg
Vertical stabs: unknown but for convenience sake we use the same weight as the horizontal stabilizers eventhough they are smaller=2x235kg=470kg?
Cockpit section: unknown but IMO 1000kg?
2x F110 engines and accessoires: 2x2000kg=4000kg
Landing gears, hydraulics and electronics= Estimated 2000kg?
Estimated empty weight TF-X= 15500kg + %10?
Bu forumda da boş ağırlık için F22/SU57 ve J20 üzerinden yapılan bir hesaplamada 17,8 ton boş ağırlık tahmini yapmışlar.
https://www.secretprojects.co.uk/threads/tai-tf-x-milli-muharip-u%C3%A7ak-mmu-kaan.13448/page-38"The heaviest part of a fighter is situated between its radar array and the engine nozzles. Measuring the distance between these points, one can deduce roughly how heavy a fighter will be. These are for the Kaan: 16,92meters, F-22: 15,45meters, J-20: 18,4meters and the Su-57 16,72meters. The F-22 is the densest out there with 1229kg per meter (assuming 19 tons empty weight), followed by the Su-57 (assuming 18,5 tons) with 1106kg per meter and the J-20 (assuming 17,5 tons) with 951kg per meter.
Taking the two fighters closest in size to the Kaan, J-20 for the length and Su-57 for the width, let us take the average of these (1106+951/2=1028kg) and apply it to the Kaan and the result is 17400kg give or take. Add the 65% that's been cut off of the horizontal stabilizers in this measurement, that weigh 235kg each, add another 300kg and another 50-100kg for the radar radome, we arrive at the final result of 17,8 tons rounded up empty weight for the Kaan.
With the Kaan weighing 17,8 tons, a wing area of 78 square meters and a thrust of 58000lbs should perform kinematically better than a Flanker mainly because of 16% more favorable wingloading (228kg/m2 vs 264kg/m2)"