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Forum: Tech Log

26th Jun 2010, 08:17

Replies: 8

Radalt Question

Views: 1,955

Posted By cdeavionics

Pulse radio altmeters

These were fitted to the BOAC DC7C fleet circa 1961. They were high level rad alts, hence the current FM rad alts were originally referred to throughout the industry as LRRA (Low Range Radio...

Forum: Tech Log

9th Jun 2010, 11:24

Replies: 11

identifying DMEs on the B737

Views: 3,760

Posted By cdeavionics

DME Ident

The ILS audio is 1020Hertz, the DME is 1350Hertz

Forum: Aviation History and Nostalgia

23rd Oct 2008, 22:02

Replies: 11

Tube headset for IFE??

Views: 1,098

Posted By cdeavionics

Acoustic tube IFE headsets

These were from the BOAC B747-136 fleet and were fitted from around 1972. All B747-100 aircraft were fitted by Boeing with the Instrument Systems Corporation (ISC) Multiplex system to provide the...

Forum: Aviation History and Nostalgia

23rd Oct 2008, 13:39

Replies: 38

Help to identify these aircraft photos

Views: 7,305

Posted By cdeavionics

York

I think they were Hangars 5 and 6 at LHR. I did a 3-month stint c.1957 at the Test Equipment design/construction workshop at the rear of,and between, these hangars during my BOAC apprenticeship.

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