Air Tractor AT-502A

The single seat AT-502 (208 built) was the initial production version of the AT-500 series. Powered by a 680shp(507kW) P&W PT-6A-34, it had a maximum take-off weight of 9500lb(4313kg). The AT-502A was based on the AT-402B with a more powerful engine. The AT-502B is similar to the AT-502A but usually has Hoerner wingtip extensions and has a maximum take-off weight of 9700lb(4403kg). A two seat version, the AT-503 was first flown in 1986 in response to a requirement of the US State Department for an aircraft suitable for the eradication of narcotics crops.

N4531K                 c/n 502-0102                      USA
Single seat agricultural aircraft first flown in 1992

Engine: 1100shp(818kW) P&W PT6A-45R
Length: 32’6”(9.91m)                                                                                          Height: 9’10”(2.99m)
Wingspan: 52’0”(15.83m)                                                                                              No.built: 25+
Range: 620miles(997km)                                                                 Cruising speed: 135mph(217kmh) Empty weight: 4570lb(2074kg)                                           Maximum take-off weight: 10,480lb(4757kg)

An example of an AT-503 is illustrated next.

                                   Registration unknown

The AT-503A(3+ built) was a dual controlled trainer version of the AT-503.

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