2014. április 8., kedd

New Concorde - The Dream Of Flying

Ladies and Gentlemen,

Let us compare the Lockheed Martin F-22 Raptor to the Boeing 737 MAX 7, 8 and 9 in some of their basic characteristics (weight and thrust):

F-22 Raptor:

Empty weight: 19, 700 kg
Loaded weight: 29, 300 kg
Max. takeoff weight: 38, 000 kg

Fuel capacity:
a) 8, 200 kg internally or
b) 11, 900 kg with 2 external fuel tanks

How do I interpret these weight data of the F-22 Raptor?

Empty weight means the weight of an aircraft in the way it leaves the factory... With 2 shiny new engines, carefully designed fuselage and wings, landing gear and state-of-the-art avionics it is capable of flying...

Loaded weight of a military jet fighter is not explained in Wikipedia but I guess it means the aircraft after armouring by approx. 10 tons of super-materials... Because military jet fighters are armoured, too like tanks, off-roaders or combat helicopters so that they are as bullet-proof as possible...

Maximum takeoff weight means the highest weight which a pilot can attempt a take-off from the runway at... When you add the loaded weight of an F-22 (29, 300 kg) and the internal fuel capacity (8, 200 kg) you get the max. takeoff weight as an approx. result (38, 000 kg)...

I have the feeling that you can add the weight of the external fuel tanks (11, 900 kg) to the maximum takeoff weight when it is about longer flights (or something else) so you get 50, 000 kg as a top weight of a military jet fighter that only carries 1 pilot...

Power-plant: 2 x Pratt and Whitney F119-PW-100 Pitch Thrust vectoring turbofans(!)

Dry thrust: 104 kN each
Thrust with afterburner: 156+ kN each

Boeing 737 MAX:

Max. takeoff weight:

737 MAX 7: 72, 303 kg   (126 seats, 2-class, typical)
737 MAX 8: 82, 191 kg   (162 seats, 2-class, typical)
737 MAX 9: 88, 314 kg   (180 seats, 2-class, typical)

Main engines: 2 x CFM International LEAP turbofan jet engines
Thrust: 100 - 120 kN each

I would like to draw the conclusion from the above that if a poorest F-22 Raptor didn't have to fight with nearly 10 tons of armouring and 12 tons of external fuel tanks which seem to be unnecessary at world peace already on the ground but it had a fuselage and wings of carbon-fibre plastic instead which were not prepared to carry lots of extra-weight then you had a cutting-edge and supersonic private jet for 1 passenger... Such a tiny private jet would be similar to the Boeing Business Jet regarding their value and usability... A BBJ offers maximum space, comfort and range for let's say 8 passengers by a little modification of a commercial passenger jet... A supersonic mini-private-jet would be little enough to be stored in your yard, it could take-off from and land on many ad-hoc runways and it would offer a really fast way to connect continents - at an acceptable performance in the area of environmental protection...

The Rolls-Royce of the skies...

Best wishes, Joseph de la Mikula and Team


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