- HRP Rescuer
__NOTOC__ Infobox Aircraft
name=HRP Rescuer
caption=
type=Tandem-rotor transport/rescue helicopter
manufacturer=Piasecki Helicopter
designer=Frank Piasecki
first flight=1945
introduced=1947
retired=
status=
primary user=United States Navy
more users=United States Coast Guard United States Marine Corps
produced=
number built=28
variants with their own articles=The Piasecki HRP Rescuer was anUnited States tandem-rotor transport or rescue helicopter designed byFrank Piasecki and built byPiasecki Helicopter initially as the PV-3 development aircraft then produced for theUnited States Navy andUnited States Coast Guard as the HRP-1 Rescuer. An improved PV-17 variant was produced as the HRP-2.Development
The PV-3 development helicopter first flew at Morton, Pennsylvania in March 1945 following a development contract from the
United States Navy in February 1944. The PV-3 was followed by two further prototypes designated XHRP-1, one was used as a static test aircraft and the other was used for development flying. In June 1946 a production order for 10 HRP-1 Rescuers was placed with the first production aircraft flying on the15 August 1947 . Eventually 20 production aircraft were built, they were tandem-rotor helicopters with a fixed tricycle landing gear and powered by a 600hp (447kW)Pratt & Whitney R-1340-AN-1 engine. The rear fuselage was metal skinned with fabric covering the main cabin area although some were flown without the fabric covering. The aircraft were evaluated by the United States Navy and United States Marine Corps and three aircraft were delivered to theUnited States Coast Guard with the designation HRP-1G. An improved PV-17 version with an all-metal skinning was developed and 5 were ordered in June 1948 as the HRP-2 and delivered to the United States Coast Guard. The success of the design led to thePiasecki H-21 family of helicopters.Variants
;PV-3:Prototype tandem-rotor helicopter powered by a
Wright R-975 piston engine, one built.;XHRP-1:Military designation for two further PV-3s, one for static testing and one for flight trials.;HRP-1:Production variant, 35 built including two HRP-1Gs.;HRP-1G:Three HRP-1s for the United States Coast Guard.;HRP-2:Metal skinned variant, 5 built.Operators
;USA
*United States Coast Guard
*United States Marine Corps
*United States Navy pecifications (HRP-2)
aerospecs
ref=cite book |last= |first= |authorlink= |coauthors= |title= The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985)|year= |publisher= Orbis Publishing|location= |issn=|pages=2716
met or eng?= engcrew=
capacity=
length m=16.46
length ft=54
length in=0
span m=
span ft=
span in=
swept m=
swept ft=
swept in=
rot number= 2
rot dia m= 12.50
rot dia ft= 41
rot dia in= 0
dia m=
dia ft=
dia in=
width m=
width ft=
width in=
height m=4.52
height ft=14
height in=10
wing area sqm=
wing area sqft=
swept area sqm=
swept area sqft=
rot area sqm= 245.30
rot area sqft= 2,640.51
volume m3=
volume ft3=
aspect ratio=
empty weight kg=2404
empty weight lb=5301
gross weight kg=3277
gross weight lb=7225
lift kg=
lift lb=eng1 number=1
eng1 type=Pratt & Whitney R-1340-AN-1 radial engine
eng1 kw= 447
eng1 hp= 600
eng1 kn=
eng1 lbf=
eng1 kn-ab=
eng1 lbf-ab=
eng2 number=
eng2 type=
eng2 kw=
eng2 hp=
eng2 kn=
eng2 lbf=
eng2 kn-ab=
eng2 lbf-ab=max speed kmh=169
max speed mph=105
max speed mach=
cruise speed kmh=
cruise speed mph=
range km=483
range miles=300
endurance h=
endurance min=
ceiling m=
ceiling ft=
glide ratio=
climb rate ms=
climb rate ftmin=
sink rate ms=
sink rate ftmin=armament1=
armament2=
armament3=
armament4=
armament5=
armament6=ee also
aircontent
see also=
related=
*Piasecki H-21
similar aircraft=
sequence=
lists=
*List of military aircraft of the United States (naval) References
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*cite book |last= |first= |authorlink= |coauthors= |title= The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985)|year= |publisher= Orbis Publishing|location= |issn=|pages=2716
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