WaspAir
Supreme Allied Gyro CFI
- Joined
- Oct 21, 2006
- Messages
- 7,179
- Location
- Colorado front range
- Aircraft
- Bell 47G-3B-1, A&S 18A, Phoebus C, SGS 1-26A, etc.
- Total Flight Time
- rather a lot
Laser ring gyroscopes for inertial guidance were big back then, pre-GPS. I did some litigating for Litton against Honeywell back then on patents for such things. It was very clever stuff, with no moving parts other than beams of light, and sensing for a phase shift (interference pattern change) to detect acceleration/rotation. It was a big leap over mechanical gyroscopes (I had to spell out the whole word because saying "gyros" on this forum means something else).The guidance systems in US military aircraft and missiles were switched over to GPS and laser mostly in late 80's and early 90'sk.
I think the EF-111 Raven used such a system.
Last edited: