XCOR EZ-Rocket

The XCOR EZ-Rocket is a test platform for the XCOR rocket propulsion system. The plane is a modified Rutan Long-EZ, with the propeller replaced by first one, then a pair of pressure-fed regeneratively cooled liquid-fuelled rocket engines and an underslung rocket-fuel tank. The engines are restartable in flight, and are contained within Kevlar armour shielding for safety reasons. The EZ-Rocket is registered as an Experimental Aircraft.


Twin rocket engines
  • Two 400 lbf (1.8 kN) thrust rocket engines (non throttleable, restartable in flight)
  • 20 sec 500m takeoff roll
  • Vne = 195kt
  • climb rate = 52m/s (10,000 ft/min)
  • maximum altitude = 10,000 ft
  • Fuel : isopropyl alcohol and liquid oxygen
  • Chamber pressure : ~ 350 psi
  • specific impulse : 250 to 270 seconds
  • Noise: 128 dB at 10 meters

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