- Mar 25, 2021
- 243
- 344
- Funster No
- 79,991
- MH
- Chausson 610 Welcome
- Exp
- Ex Tugger saw the light in 2019
The sextants were removed many many moons ago because with the nav kit was upgraded including GPS and INS Inertial Navigation System so were redundant. The Navs weren't keeping current as there was no requirement for them to use old technology. The cost saving in the servicing every 60 days (IIRC) x 2 per aircraft also the very expensive almanac per aircraft. One was still fitted so an airborne upper surface check could if required. Not uncommon to loose an HF aerial. Been there, done that and extremely noisy with the cable beating the airframe to death, well it sounded like it and was a good time to divert to remove the offending cable.Old methods do seem to be still around. I remember being shown around an RAF aircraft many years ago, it might have been a C130, and it had a sextent built into the roof of the cockpit. This was so they could get a sun sighting and fix their position. I don't know if they still have one but given navigation systems could be lost in war and GPS jammed I suspect they still do.