Latin American Military - Argentina - Prefectura Naval Argentina (PNA) - Sikorsky S-51 Dragonfly

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

Only one Sikorsky S-51 Dragonfly serialled PM-20, (C/N 5161), ever got in service with the Prefectura Naval Argentina (PNA) where it was used for SAR duties. It was transferred from the Policía Federal Argentina (PFA) on September 28, 1957 where it used the LQ-XXR serial. According to one report, before that it was used by the Dirección Nacional de la Aviación Civil (DNAC), which was its original owner, also for SAR duties and based at the Mar del Plata seaside resort. The fate of this aircraft is unknown.

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
PM-20     5161       SrvdeAviacion --/---/---- 28/Sep/1957 wfu --/---/----     Ex-PFA LQ-XXR

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