Great Lakes XSG

__NOTOC__ Infobox Aircraft
name=XSG


caption=
type=Reconnaissance amphibian
national origin=
manufacturer=Great Lakes
designer=
first flight=avyear|1931
introduced=
retired=
status=
primary user=
more users=
produced=
number built=1
variants with their own articles=The Great Lakes XSG was an amphibious observation aircraft developed in the United States in the early 1930s for a US Navy competition. It was an ungainly and unorthodox biplane design with a single large pontoon mounted below the lower wing. This pontoon extended rearwards and carried the conventional empennage. On top of the lower wing, where the fuselage would normally be located, was a stubby nacelle containing the tractor-mounted engine and the pilot's cockpit. The rear of this nacelle was semi-enclosed with glazing and incorporated a position for a tail gunner. The main units of the wheeled undercarriage retracted into the sides of the central pontoon.

Development quickly ended when trials revealed that the aircraft was incapable of reaching the speeds required by the Navy, and only a single prototype was ever built.

pecifications

aerospecs
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met or eng?= eng

crew=Two, pilot and gunner
capacity=
length m=9.90
length ft=32
length in=7
span m=10.60
span ft=35
span in=0
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=3.90
height ft=13
height in=0
wing area sqm=
wing area sqft=
swept area sqm=
swept area sqft=
rot area sqm=
rot area sqft=
volume m3=
volume ft3=
aspect ratio=
empty weight kg=
empty weight lb=
gross weight kg=1,912
gross weight lb=3,219
lift kg=
lift lb=

eng1 number=1
eng1 type=Pratt & Whitney R-985
eng1 kw= 300
eng1 hp= 400
eng1 kn=
eng1 lbf=
eng1 kn-ab=
eng1 lbf-ab=
eng2 number=
eng2 type=
eng2 kw=
eng2 hp=
eng2 kn=
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eng2 kn-ab=
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max speed kmh=219
max speed mph=136
max speed mach=
cruise speed kmh=
cruise speed mph=
range km=
range miles=
endurance h=
endurance min=
ceiling m=4,480
ceiling ft=14,700
glide ratio=
climb rate ms=
climb rate ftmin=
sink rate ms=
sink rate ftmin=

armament1=1 × trainable, rearward-firing machine gun in aft cockpit
armament2=
armament3=
armament4=
armament5=
armament6= aircontent
see also=
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References

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