[ARC5] BC-221 on Shock Mount

[David Olean]

Hello Mark,

It is a bit difficult to really look at those shock mounts in the photo. 
Do they look like a producytion type mod, or a "One off". I wonder if 
someone did a mod for a use later in life? Is the cal book inside the case?

73

Dave K1WHS

On 8/7/2026 12:05 AM, Mark K3MSB via ARC5 wrote:
> Hi Everyone
>
> I have a BC-221N that is not in the typical metal case for portable use.
>
> Rather, it's on a shock mount.
>
>
> image.png
> image.png
>
> I've not encountered one like this before.
>
> I know various bomber aircraft had a BC-221 (portable unit) stored on 
> board,  and I'm interested in learning when this type of mounted unit 
> was used instead.
>
> I didn't see anything in TM11-300.
>
> 73 Mark K3MSB
>
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