PPRuNe Forums - View Single Post - Efficiency of jet engines

30th December 2002 | 20:51

#3 (permalink)

Private jet

Joined: Nov 2001

Posts: 2,412

Likes: 17

From: Delta of Venus

Steam (external combustion) engines = 20%
Piston (internal combustion) engines = 30%
Gas turbine engines = 30%
Electric motors = 95% !!

These figures are of course very approximate due to the range of variables involved.