I strongly suspect 682al,that you’re absolutely right.

It seems the mounting plate was fitted irrespective of whether the a/c had H2S,belly gun or neither fitted,in which case the mounting plate merely became a “blanking plate” to plug th’ole in the floor.

Cousin spadegrip reckon’s he’s seen the “towel rail” antennas on Stirlings,Hallys and Whitleys as well as Lancs and upon further investigation it appears that he’s correct too.

What’s even more apparent is that the towel rail appeared more so on a/c’s that were not H2S equipped,making it extremely probable that RF141 had
one fitted.

So there we are,one more piece of the “Uncle Joe Again”jigsaw in place.

Many thanks.

Mark

From my impeccable source, RF141 did not have H2S fitted.