Про моральный облик некоторых защитников афёры НАСА на Луне, говорить не будем...
Интересно обратить внимание на проведение американцами только двух испытаний возвращения чего-нибудь на на Землю со второй космической скорости, причём оба раза далеко не в формате реального возвращения с орбиты Луны.
Apollo 6
This was the final qualification flight of the Saturn V before its first manned flight (Apollo 8). It was also the first mission to use High Bay 3 in the Vertical Assembly Building (VAB), Mobile Launcher 2 and Firing Room 2. Another objective was testing the Command Module re-entry system under extreme conditions simulating a worst-case return from the Moon. This objective was not met due to J-2 engine failures.
The failure of the two engines in the second stage was traced to the rupturing of a fuel line that fed the engine igniters.
Apollo 6
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Apollo 6
Mission insignia
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// Дальше — en.wikipedia.org
Последний, из всего двух запусков Saturn V перед посадкой на него людей:
- Apollo 6 experienced problems right from the start. Two minutes into the flight, the rocket experienced severe Pogo oscillations for about 30 seconds;
- failure of the 2 engines in the second stage;
- возвращение КМ в экстремальных условиях с Луны не было отработано...
It was decided to use the Service Module engine to raise the spacecraft into a high orbit in order to complete some of the mission objectives. It burned for 442 seconds, longer than it would ever have to on a real Apollo mission and raised the apogee of the orbit to 22,200 km. There was now however not enough fuel to speed up the reentry and the spacecraft only entered the atmosphere at a speed of 10,000 m/s instead of the planned 11,270 m/s. This meant it landed 80 km from the planned touch down point.
Надо ещё обратить внимание, что ни Apollo 4, ни Apollo 6 почему-то не имели на борту животных для проверки на них условий выхода на высокую орбиту и возвращения на Землю со второй космической скорости...