3 ms·
Can you not just make the plane smaller and lighter and more aerodynamic and use a larger engine? You may also be able to show that current engines can operate
by andy_ppp 11y ago
Can you not just make the plane smaller and lighter and more aerodynamic and use a larger engine? You may also be able to show that current engines can operate at higher energy levels for longer?
- ethank 11y agoDoesn't work like that. They want to use a J28D engine modified for super sonic flight. That engine was designed to power MD80's.
- neurotech1 11y agoIts the intake design that makes the difference for supersonic performance. JT8D [0] is based on the J52 engine that powered the A-4 Skyhawk, and a related design is the RM8 [1] that powered the M2.0+ SAAB Viggen.[2] [0] https://en.wikipedia.org/wiki/Pratt_%26_Whitney_JT8D https://en.wikipedia.org/wiki/Pratt_%26_Whitney_JT8D [1] https://en.wikipedia.org/wiki/Volvo_RM8 https://en.wikipedia.org/wiki/Volvo_RM8 [2] https://en.wikipedia.org/wiki/Saab_37_Viggen https://en.wikipedia.org/wiki/Saab_37_Viggen
- diskcat 11y agoEngine is generally optimised for max efficiency at a cruising speed. A airliner engine is optimised for transonic cruising, you can't just half the plane and double the speed.