----- Original Message ----- From: "Robert Eleazer" <releazer at earthlink.net> Subject: [ARC5] Helicopter Radios >..... Anyone know what kind of radios they used in the R-4 and R-5? Somewhere around here is the A.R.C. type-12 manual for the R-19 / T-13 set and is specifically called-out for these early choppers. I'll see if I can find it.