Meaning of some terms
 

I was wondering if someone who might be able to kindly help me please with a couple of aviation terms from 1983?

1 What does the 'B & D' mean in a 'B & D cabin display'?

2 What does the 'T/X' mean in 'Radar T/X'?

3 What was a 'Flight Text' in 1983? I am assuming it is not the same as a mobile phone text today as mobiles were not freely available in 1983?

4 What is the 'T' in 150 degrees T. Someone said it was 'True' but someone else told me it stood for 'Turing'.

Many Thanks
KeMac

1. Don't know.
2. Transmitter. (receiver is R/X or RX)
3. Don't know.
4. True.

Don't know what B&D stands for, but it's the name of the manufacturer - B&D Instruments and Avionics Inc, of Valley Center, Kansas, USA.

Black & Decker? :}

A well-drilled response...

A bit boring really.

Founded by Howard Botts and Dave Dahl.

This doesn't auger well....

1. Don't know
2. A transmitter is TX and a receiver is RX. TR = Transmitter / Receiver.
3. Don't know. But we used to have Telex and then Sita messages but none of the aircraft I flew on could receive them on board.
4. True heading as opposed to Magnetic Heading.

Hope this helps.

Many thanks for the helpful responses
KeMac

Some background info on B&D Instruments
Ark Valley News - In good company