L18 Jet Engine Flashcards
1910 motor-jet - secret Nazi technology
built by Henri Coandâ (1886-1972) Romania - took the aircraft to France - aircraft got on fire and no time to repair
4 type of jet engine
- Turbojet - come by Nazi Germany - failed:
exposures to very high temperature - Turbo fan - quite
- Pulsejet - 300km start speed, max 600km
- Ramjet - C2500km/h start speed, max speed?
1935 HeS3 - first modern turbojet engine - 1939 Heinkel He 178 650km/h
Hans von Ohain (1911-1998) Germany (physicist)
the world first jet fighter
1942 Me 262 first jet fighter - (Jumbo turbojets)
Problems with blades Me 262
blades cannot afford the heat produced by the turbo
Me 163 (1941)
rocket fighter - tiny propeller - generated by electric
Hanna Reitsch
Female test pilots - friend of Hitler and fight in the WWII
T-Stoff and C-Stoff
World’s speed record -problem is the fighter is too fast for pilots to shoot
Transonic speeds
supersonic and subsonic airflow act together shock wave back to WWII designs
The quest for speed
- Swept wing design - thick wing
- Powerful turbojet engines
- Large control surfaces
- Coke bottle principle
Ho 229 1945
design of shape to eliminate the shock wave effect
The quest for speed all came together in one aircraft
Lockheed SR-71 Blackbird 1946-1993 over 3500km
hypersonic - not limited by technology - human cannot stand such high speed
technology would make human obsolete
SR-71
hypersonic