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Details about  RAF Dead Reckoning Nav Computer Mark 4A

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RAF Dead Reckoning Nav Computer Mark 4A
RAF-Dead-Reckoning-Nav-Computer-Mark-4A
Item Ended
Item condition:
Used
Ended:
24 Apr, 2012 10:53:56 BST
Starting bid:
£4.99
0 bids ]
Postage:
£1.95 Economy Delivery | See details
Item location:
Portsmouth, United Kingdom

Description

eBay item number:
190666772598
Seller assumes all responsibility for this listing.
Last updated on  20 Apr, 2012 20:36:11 BST  View all revisions

Item specifics

Condition:
Used: An item that has been previously used. The item may have some signs of cosmetic wear, but is fully ... Read moreabout the condition
 

Please note that this is the same item as listed in a different section - http://www.ebay.co.uk/itm/190666771299?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

If you are interested, please bid for it there.

RAF Navigation Computer

Computer Dead Reckoning Mk 4A, complete with grey protective sleeve

Used, but in perfect working order

A multi-purpose computer suitable for both flying club and high-performance aircraft (speed range 50 – 800 knots).  The front side is for working out course to steer and groundspeed, by calculating wind effect on direction and speed  - graphical solution of the triangle of velocities, if you care about these things.  Or if you know your track and groundspeed you can even work out the wind.

The rear face is a multi-function converter – a circular slide rule for multiplication/division, working out ETA, conversion between statute miles, nautical miles and kilometres, between IAS/TAS and Mach Number.

This ‘whizzwheel’ has flown thousands of miles with me over the years and is still going strong (to be fair, there isn’t much to go wrong!).

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