HF and V/UHF aerials are different on the 3A as previously posted, as well as the removal of the ADF towel rail found below the cabin door on the 3. Also, I don't think there's a Decca aerial bulge behind the cabin door, but can't be sure.
Both types have the sand filters fitted.
Last edited by No Vote Joe; 18th Mar 2013 at 15:31.