Latin American Military - Argentina - Policía Federal Argentina (PFA) - Sikorsky S-51 Dragonfly

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Revised: October 14, 2007
Copyright © 1997-2010 by Jean Charles Barroux - jbarroux@LAMilitary.org

One Sikorsky S-51 Dragonfly, LQ-XXR (C/N 5161), was transferred from the DGAC sometime in 1951 to the Policía Federal Argentina (PFA) where it served until September 28, 1957 when it was transferred again to the Prefectura Naval Argentina (PNA) as the PM-20 by virtue of the Contratación Directa Nº 593 under the umbrella of the Decreto del Poder Ejecutivo Nacional Nº 14275/57. With that transfer went also the only Cessna T-50 Bobcat, the two de Havilland 104 Doves, and five naval launches. It operated from its base in José Caros Paz and logged more than 200 hours of flight in service of the institution.

Sikorsky S-51 Dragonfly

Sikorsky S-51 Dragonfly light utility, training and observation helicopter

Designation: Sikorsky S-51 Dragonfly
Manufacturer: Sikorsky, U.S.A.
Crew: 1
Passengers: 1
Construction: ---
Engine: 1 x Pratt & Whitney R-985-4B Wasp Junior
Engine Type: Nine-cylinder radial piston
Engine Thrust: 335 kW (450 hp)
Rotors: 3 bladed main rotor and 3 bladed tail rotor
Main Rotor Diameter: 14.94 m
Main Rotor Disk Area: --- m2
Fuselage Length: 12.47 m
Overall Length: 17.38 m
Height: 3.94 m
Empty Weight: 1,710 kg
Max. Weight MTOW: 2,265 kg 
Max. Weight with Sling: --- kg
Max. Speed: --- km/h
Max. Speed at Sea Level: 145 km/h
Max. Cruising Speed: --- km/h
Normal Cruising Speed: 130 km/h
Initial Rate of Climb: --- ft./min
Ceiling: --- ft.
Howering Ceiling: --- ft.
Fuel Capacity: --- lts
Range on Internal Fuel: 480 km
Range with Max. Fuel: 480 km
Range with Max. Payload: --- km
Combat Radius: --- km ()
Endurance: --- Hrs
Useful Load: 567 kg
Radar: ---
EW: ---
Avionics: ---
Weapons: ---
Format: 1.0
Notes: 

S/N       C/N        Unit          Built       Bought      Disposition         Notes
LQ-XXR    5161       CFA           --/---/---- --/---/1951 wfu 28/Sep/1957     To PNA PM-20

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