| 词条 | SpaceShipOne flight 13P |
| 释义 |
Flight 13P of SpaceShipOne was its second powered flight, which occurred on April 8, 2004. The pilot was Peter Siebold. SpaceShipOne was released from White Knight at an altitude of 45,600 ft (13,900 m). Ignition was delayed by about two minutes to evaluate a shock-induced stall buffet. The rocket was lit at an altitude of 38,300 feet (11.7 km) for a 40-second burn. At burn-out, the Mach number was 1.6. The craft coasted to an apogee altitude of 105,000 feet (32.0 km). During reentry the craft attained Mach 0.9. The craft switched to glider configuration at 40,000 feet (12.2 km). The craft returned to the spaceport and landed safely. External links
1 : Scaled Composites Tier One program |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。