[Milsurplus] Interesting web site - P-38 radio

[Bob Camp]

Hi

I believe that in the arctic they needed something more than a simple  
compass for long range operations.  Compasses are not a big help when  
the magnet pole is below you ....

No real data I can put my fingers on at the moment though.

Bob


On Dec 2, 2007, at 9:15 AM, Francesco Ledda wrote:

>
> I am sure that it was compass, watch and a little luck....
>
>
> -----Original Message-----
> From: milsurplus-bounces at mailman.qth.net
> [mailto:milsurplus-bounces at mailman.qth.net]On Behalf Of Mike Morrow
> Sent: Sunday, December 02, 2007 7:50 AM
> To: milsurplus
> Subject: Re: [Milsurplus] Interesting web site - P-38 radio
>
>
>> So for example, the P-38s that intercepted  Adm. Yamamoto's
>> plane, were they flying solely by compass and map visuals?
>
> I don't know what that mission used for long-range navigation, but  
> it would seem a good candidate for USAAF use of the ZB system with  
> the SCR-274-N BC-946-B BCB receiver and the R-1/ARR-1 homing  
> adapter.  Some P-38s carried the MN-26 RDF, so maybe that's a  
> possibility too.
>
> In general, there doesn't seem there's much evidence for LF/MF RDF  
> use by fighter aircraft in WWII, anywhere, other than aural  
> directional Adcock beacons that don't require a loop on the  
> aircraft.  Those would be useful mainly in ferrying operations,  
> since such beacons would be non-existent in combat theaters.  The  
> large P-61 fighters carried the SCR-269 or AN/ARN-7 ADF, but P-61s  
> were hardly typical fighter aircraft.
>
> The P-38 photo seems to show a BC-450 three-receiver control box  
> that has been modified to remove one section, hence the sharp,  
> rectangular shape of the top and its open appearance next to the  
> BC-451 transmitter control box.  Also notice that this truncated  
> BC-450 *and* the BC-451 both appear to be mounted, somehow, on to  
> the same three-receiver mounting plate.  It's an odd installation in  
> several respects.
>
> I have a single-receiver control box that was modified, fairly  
> professionally, from either a three-receiver BC-450 or a two- 
> receiver BC-496 control box, so maybe these were sometimes  
> "customized" in the field.  My box profile is similar to the one  
> shown in the P-38 photo, except it's for just one receiver.
>
> Mike / KK5F
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