Fokker D.XI

__NOTOC__ Infobox Aircraft
name=Fokker D.XI


caption=
type=Single-seat fighter
manufacturer=Fokker
designer=Reinhold Platz
first flight=1923
introduced=
retired=
status=
primary user=USSR
more users=
produced=
number built=117
variants with their own articles=The Fokker D.XI was a 1920s Dutch single-seat fighter designed and built by Fokker

Design and development

The D.XI was designed by Reinhold Platz for Fokker and first flew in 23 March 1923. It was a single-seat sesquiplane (the lower wing was smaller than the upper) with a fixed tailskid landing gear. Due to financial problems the Dutch government did not place an order but 117 were built for export. There was some minor changes in design between customers but all had the single-bay v-strut wing and powered by a 300hp (224kW) Hispano-Suiza piston engine. The twin radiators for the engine were mounted on the sides of the nose.

Operational history

The main customer was the USSR who operated the aircraft until 1929. The United States Army bought three aircraft for evaluation with the designation PW-7 and powered by a 440hp (328kW) Curtiss D.12. Fifty aircraft on order for Germany were cancelled.

Operators

*ARG
*flag|Romania|1867
*USSR
*flag|Spain|1785
*SUI
*flag|United States|1912

pecifications

aerospecs
ref=The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985), 1985, Orbis Publishing, pages 1874/5
met or eng?= met

crew=1
capacity=
length m=7.50
length ft=11
length in=7¼
span m=11.67
span ft=38
span in=3½
swept m=
swept ft=
swept in=
rot number=
rot dia m=
rot dia ft=
rot dia in=
dia m=
dia ft=
dia in=
width m=
width ft=
width in=
height m=3.20
height ft=10
height in=6
wing area sqm=21.8
wing area sqft=234.66
swept area sqm=
swept area sqft=
rot area sqm=
rot area sqft=
volume m3=
volume ft3=
aspect ratio=
empty weight kg=865
empty weight lb=1907
gross weight kg=1250
gross weight lb=2756
lift kg=
lift lb=

eng1 number=1
eng1 type=Hispano-Suiza 8 Fb 8-cylinder Vee piston engine
eng1 kw= 224
eng1 hp= 300
eng1 kn=
eng1 lbf=
eng1 kn-ab=
eng1 lbf-ab=
eng2 number=
eng2 type=
eng2 kw=
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max speed kmh=225
max speed mph=140
max speed mach=
cruise speed kmh=
cruise speed mph=
range km=440
range miles=273
endurance h=
endurance min=
ceiling m=7000
ceiling ft=22,965
glide ratio=
climb rate ms=
climb rate ftmin=
sink rate ms=
sink rate ftmin=

armament1=2 x 0.303in (7.7mm) machine-guns (forward facing)
armament2=
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armament6=

aircontent
see also=
related=
similar aircraft=
sequence=
lists=
*List of military aircraft of the United States
* List of fighter aircraft

References

*
* John Andrade, U.S.Military Aircraft Designations and Serials since 1909, Midland Counties Publications, 1979, ISBN 0 904597 22 9 (Page 160)
* The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985), 1985, Orbis Publishing, pages 1874/5