Boeing Y1b-20

Despite their cancellation, the XB-15 and Y1B-20 laid the groundwork for the B-29 Superfortress , one of the most famous and most successful World War II bombers.

SPECIFICATIONS (AS DESIGNED)

	plane Or Copter	plane
	jet Or Prop	prop
	crew	10
	length Main	109 ft 2 in
	length Alt	333 m
	span Main	157 ft 0 in
	span Alt	478 m
	height Main	23 ft 4 in
	height Alt	71 m
	area Main	ft&sup2
	area Alt	m&sup2
	empty Weight Main	87,500 lb
	empty Weight Alt	39,700 kg
	loaded Weight Main	91,500 lb
	loaded Weight Alt	41,500 kg
	max Takeoff Weight Main	105,100 lb
	max Takeoff Weight Alt	47,700 kg
	number Of Props	4
	type Of Props	geared Radials
	engine (prop)	Wright GR-2600 -A73
	power Main	1,350 hp
	power Alt	1,000 kW
	max Speed Main	258 mph
	max Speed Alt	224 kt, 415 km/h
	cruise Speed Main	242 mph
	cruise Speed Alt	210 kt, 389 km/h
	range Main	4,000 mi
	range Alt	3,500 nm, 6,400 km
	ceiling Main	ft
	ceiling Alt	m
	climb Rate Main	ft/min
	climb Rate Alt	m/s
	loading Main	lb/ft&sup2
	loading Alt	kg/m&sup2
	power/mass Main	0059 hp/lb
	power/mass Alt	97 W/kg

EXTERNAL LINKS

Encyclopedia of American Aircraft

USAF Museum description of Y1B-20

	CATEGORIES ABOUT BOEING Y1B-20

	u.s. bomber aircraft 1930-1939

	b-20, boeing

	boeing aircraft

	y1b-20

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Information About

Boeing Y1b-20