Hanriot HD.3

__NOTOC__ Infobox Aircraft
name=HD.3 and HD.4


caption=
type=Fighter
national origin=France
manufacturer=Hanriot
designer=Emile Dupont
first flight=June avyear|1917
introduced=
retired=
status=
primary user="Aéronautique Militaire"
more users="Aéronautique Maritime"
produced=
number built=ca. 90
variants with their own articles=The Hanriot HD.3 was a two-seat fighter aircraft produced in France during World War One. Similar in appearance to a scaled-up HD.1, it was a conventional, single-bay biplane with staggered wings of equal span. The pilot and gunner sat in tandem, open cockpits and the main units of the fixed tailskid undercarriage were linked by a cross-axle. Short struts braced the fuselage sides to the lower wing.

Flight testing revealed excellent performance, and the French government ordered 300 of the type in 1918, in preparation for a major offensive the following year. When the war ended, the contract was cancelled with around 75 aircraft having been delivered to the "Aéronautique Militaire" and at least 15 to the "Aéronautique Maritime". One example was delivered to the "Aéronautique Maritime" in summer 1918 equipped with twin float undercarriage and a larger tailfin; it was intended that this would be the prototype of a dedicated floatplane fighter designated HD.4, but the war ended before any further development took place. The Armistice also led to the abandonment of a dedicated night fighter variant, the HD.3"bis", with enlarged and balanced ailerons and rudder and with a wing of increased section.

After the war, one of the navy's machines was used for trials aboard the new aircraft carrier "Béarn", while another was used for floatation tests at the Isle of Grain.

Variants

HD.3

; HD.3.C 2: Main production version; HD.3"bis".CN 2:Nightfighter prototype with thick wing section and revised control surfaces Bruce 1972, p.21.] (1 built)

HD.4

; HD.4:Floatplane derivative of HD.3. One built. Bruce 1972, p.19.]

HD.5

;HD.5.C 2:Two-seat fighter, powered by a 300-hp (224-kW) Hispano-Suzia 8Fb engine. Only one was ever built.

HD.6

;HD.6.C 2:Enlarged two-seat fighter protoype, powered by a 530-hp (395-kW) Salmson 18Z radial piston engine. Only one was ever built, not demonstrating significantly better performance than the HD.3. Bruce 1972, pp.24-27.]

HD.9

;HD.9.Ap 1:Single-seat photo-reconnaissance biplane, powered by a 260-hp (194-kW) Salmson 9Za radial piston engine. Ten evaluation aircraft were ordered, with the first completed in November 1918. Bruce 1972, pp.32-35]

Operators

;FRA

pecifications (HD.3)

aerospecs
ref=
met or eng?= met

crew=Two, pilot and gunner
capacity=
length m=6.95
length ft=22
length in=10
span m=9.00
span ft=29
span in=6
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=3.00
height ft=9
height in=10
wing area sqm=25.5
wing area sqft=274
swept area sqm=
swept area sqft=
rot area sqm=
rot area sqft=
volume m3=
volume ft3=
aspect ratio=
empty weight kg=760
empty weight lb=1,675
gross weight kg=1,180
gross weight lb=2,600
lift kg=
lift lb=

eng1 number=1
eng1 type=Salmson 9Za
eng1 kw= 195
eng1 hp= 260
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=192
max speed mph=119
max speed mach=
cruise speed kmh=
cruise speed mph=
range km=
range miles=
endurance h= 2
endurance min=
ceiling m=5,700
ceiling ft=18,700
glide ratio=
climb rate ms=4.1
climb rate ftmin=800
sink rate ms=
sink rate ftmin=

armament1=2 × fixed, forward-firing .303 Vickers machine guns
armament2=2 × trainable, rearward-firing .303 Lewis guns
armament3=
armament4=
armament5=
armament6= aircontent
see also=
related=
similar aircraft=
lists=

References

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