Feel free to become our Doppler Radar expert!:dev2:

Ollie

Thanks for the offer Ollie – but I was an instrument basher. My ‘thing’ was navigation and I bench-tested many Mk 4 GPIs.

In fact, for several years I was the only person in the intrument department at A&AEE Boscombe Down who knew how these wonderfully complex electro-mechanical computers worked!

Incidentally (I hope I’m not boring people here) I designed a modification for these units and got the princely sum of £10 award from the MOD – 2 years after I submitted the design.

GPIs were being sent back to us as inaccurate, when they were bench-testing OK. Suddenly, with the case removed on the bench, I noticed a flexing of the frame – and that was causing the heading mechanism to rotate about 2 degrees when the unit was secured in the rack on the aircraft. My mod was a bracket between the rear frame and front mechanism.

THe Green Satin provided the GPI with groundspeed and drift, and these are displayed on the Green Satin Unit. I did learn the basics of the doppler and functions of the antenae from a radio technician, so that I had a good overall understanding.

Bri 🙂