Comparison of Avro Vulcan and NAA XB-70 Valkyrie

Attribute	NAA XB-70 Valkyrie ×	Avro Vulcan ×
General
Manufacturer	North American Aviation NAA	Avro
Model	NAA XB-70 Valkyrie	Avro Vulcan
Country	United States	United Kingdom
Manufactured from (year)	1964	1956
Manufactured to (year)	1969	1965
Type	Military Aircraft	Military Aircraft
Icao	XB70	-
Performance
Engine	6x 6 × General Electric YJ93-GE-3 afterburning	4x Bristol Olympus Mk.101 / Mk.102 / Mk.104
Power, lbf (lbf)	30,000	11,000
Avionics	-	VHF transmitter/receivers, l HF transmitter-receiver, H2S Mk9 radar etc.
Max cruise speed (km/h)	3,217	1,039
Approach speed (km/h)	-	315
Travel range (km)	6,901	4,195
Fuel economy (km/l)	0.068	-
Service ceiling (m)	23,576	16,764
Rate of climb (m/sec)	36.42	81.28
Take off distance (m)	2,256	-
Weights
Max take off weight (kg)	245,847	77,111
Max payload (kg)	9,072	10,000
Fuel tank capacity (l)	136,074	42,169
Dimensions
Seats	2	5
Exterior length (m)	56.6	30.45
Tail height (m)	9.1	8.28
Fuselage diameter (m)	-	2.6
Wing span (m)	32	33.83
Wing tips	No Winglets	No Winglets