[Milsurplus] Marine use of airborne radios

[Mark M]

Never saw an MN 26 CA on a boat. Also never saw positive DC ground on a boat although I heard a few existed. I worked on many fishing boats and all had negative grounds. 

On yawing boats, manual DFs were hard to use. With a hand cranked loop like LP 20 you’d have a really hard time as the vessel yaw rate could exceed the loop swing rate. You often just watched for a null as the boat yawed and noted the compass reading rather than try to chase the null with the loop. 

ADFs were VASTLY superior on fishing boats in rough weather. ARN 7 and SCR 269 were stellar performers. Still looking for info on their use aboard USCG boats. Have many photos of 1950s CG boats with LM 21 football loops. 

Found evidence of MN 62 use aboard one fishing boat. Very similar to ARN 7. Skippers Dad was a Pan Am pilot and I’ll bet the MN 62 was from a Pan Am airliner. Have the manual. It’s essentially an ARN 7 manual with an MN 62 cover and a few changed pages. 

Mark
AF6IM
www.parachutemobile.com



> On Nov 26, 2017, at 1:01 AM, milsurplus-request at mailman.qth.net wrote:
> 
> Marine use of airborne radios