PPRuNe Forums - View Single Post - jet engine gyro effect
View Single Post
Old 21st November 2007 | 01:59
  #11 (permalink)  
Wino
Union Goon
 
Joined: Feb 2000
Posts: 1,097
Likes: 0
From: New Jersey, USA
Many Jet fighter planes having Rolling G limits and it is because of this effect.

The F100 had a MASSIVE rotating mass in the engine and many aircraft were lost early in its service life from Gyroscopic forces. Later models received a much larger Rudder and vertical stab to counter this. But early models had a lot of unexplained departures from controlled flight that werer later chalked up to gyropscopic forces.

F-4 phantom as I recall had a rather low rolling G limitation to keep from breaking the motor mounts from gyroscopic forces.

Cheers
Wino
Wino is offline  
Reply