[Milsurplus] [vmars] Historical Connector Question

J. Forster jfor at quikus.com
Fri May 16 09:28:14 EDT 2014


Hi Richard,

Thank you for confirming my guess. Now the connector choice makes a lot of
sense.

As to the "P" v. "W", that's my booboo. By P I meant PL-xxx

A PL-P166  is a 10H7405 (?) I  can't quite read the stampings. Same
connector, different name.

-John

===================




> John,
>
> it looks like the article on LORAN at Wikipedia
> (http://en.wikipedia.org/wiki/LORAN ) provides the answer.
>
>                                 /"The original airborne receiver unit
>                                 was AN/APN-4 unit of 1943. It was
>                                 physically identical to the UK's
>                                 two-piece Gee set, and could be easily
>                                 interchanged with these units/"
>
>
> Apparently this proved extremely useful, according to the article.
>
> Note there is at least one serious mistake in the article:  "Drippy"
> instead of "Dippy"!
>
> And it looks likely from the article, that GEE gear was swopped for
> LORAN as planes moved about the world.  Note the comment that "/RAF
> Transport Command aircraft could swap their receivers when moving to or
> from the //Australian//theatre/".
>
> Also note:  "/By the end of World War II there were 72 LORAN stations,
> with over 75,000 receivers in use"/
>
> I am note aware of a "P-multipin" type of connector.   But GEE uses
> W-plugs.    Given the interchangeability, "P-multipin" is the American
> name for the British W-plugs?
>
>
> Richard
>
>
>
> On 15/05/2014 18:13, 'J. Forster' jfor at quikus.com [vmars] wrote:
>>
>> On the Milsurplus list, there have been some recent musings about why
>> the
>> LORAN-A receivers (APN-4 & APN-9) used Pye connectors. (and also the P-
>> multipin, instead of the US common MS series)
>>
>> I have a theory,which I'd like to test:
>>
>> Does anyone know if the APN-4 LORAN-As replaced some earlier radio
>> navigation system in British bombers partway through WW II?
>>
>> I could well image the connector oddities were so that the installed
>> systems could just have the new stuff swapped in, using the EXISTING
>> cables?
>>
>> Inquiring minds want to know.
>>
>> -John
>>
>> ==================
>>
>>
>
>




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