According to the research available from the link below, the C-130E's AN/APN-169 radar installed on the fuselage just aft the cockpit could be used for air-to-air stationkeeping regardless of visibility and, in conjunction with a ground-based AN/TPN-27(V) zone marker, the aircraft could perform accurate airdrops.
https://www.forecastinternational.com/archive/disp_pdf.cfm?DACH_RECNO=809
AN/APN-169 radar was connected to the IP-797A azimuth and range indicator (CRT) and represented the state of technology from the 1960s.
According to various websites listed below, the AN/TPN-27 was a relatively small device, which operated on four frequencies of 3390.0 and 3510.0 and 3350.0 and 3470.0 MHz (ie. on 4 channels).
https://buyaircraftparts.com/part-number/antpn27a_01-141-5992https://www.parttarget.com/5840-01-141-5992_5840011415992_8106-1000.html
Does anyone recall the real maximum range of reception of the ground reply signals aired by the AN/TPN-27 and how accurate in reality that system was?
https://www.forecastinternational.com/archive/disp_pdf.cfm?DACH_RECNO=809
AN/APN-169 radar was connected to the IP-797A azimuth and range indicator (CRT) and represented the state of technology from the 1960s.
According to various websites listed below, the AN/TPN-27 was a relatively small device, which operated on four frequencies of 3390.0 and 3510.0 and 3350.0 and 3470.0 MHz (ie. on 4 channels).
https://buyaircraftparts.com/part-number/antpn27a_01-141-5992https://www.parttarget.com/5840-01-141-5992_5840011415992_8106-1000.html
Does anyone recall the real maximum range of reception of the ground reply signals aired by the AN/TPN-27 and how accurate in reality that system was?
