Hi everyone,
I am making some decent progress on my Tamiya M51 and realized I still need to add the big whip antenna to the turret. Does anyone know how long that thing is in real life? I want to say 11-15 feet but I'm not sure. I did a search and did not find anything. Thank you.

Have a look here: https://www.facebook.com/media/set/?set=oa.1745463235688374&type=1

Humm...link does not seem to work.

Anyone? Please

I am guessing it depends on which radio IDF was using for M51 in the 60s and 70s.
Here's what people have been saying about U.S. Sherman antennas:

[According to] the October 44 version of TM 11-487, which is a 500+ page manual detailing specs and applications for every piece of electrical communication equipment used by the Army at that time.

The antenna length depended on the type of radio used. Antenna lengths for the radios used in M4, M5, and M24 variants are as follows:

SCR 508 - 9 foot whip 3 piece sectionalized MS-51 to MS-53 inclusive
SCR 528 - 9 foot whip 3 piece sectionalized MS-51 to MS-53 inclusive
SCR 538 - 9 foot whip 3 piece sectionalized MS-51 to MS-53 inclusive

SCR 506 - 15 foot whip 5 piece sectionalized MS-49 to MS-53 inclusive. In semi-fixed/static locations, they sometimes used a 25 foot whip 8 piece sectionalized (three MS-54's added to 15 foot antenna sections MS-49 to MS-53). This is the command tank radio with the antenna mounted in the right front sponson.

AN/VRC-3 - either a 3 foot whip single piece MS-118 or a 6 foot whip sectionalized with an MS-117 added to the MS-118. These radios were used in tank applications, basically the same as the SCR 300 but slightly modified for vehiclular mounting. It was used as a means of communicating between tank and infantry units.

More info here: http://www.network54.com/Forum/47208/thread/1167942990/Sherman

James,
Thank you sir! I think I found my answer. You effort is honestly appreciated.