Quotes by Henry Spencer - Page 2

An experienced designer with more freedom to act might have realised that there was just too much optimism in the Ares I concept: that a shuttle SRB was simply too small as a first stage for a rocket carrying the relatively heavy Orion spacecraft.
Henry Spencer / Programmer
Designer
Heavy
Realised
Spacecraft
Carrying
Concept
Experienced
Rocket
Shuttle
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Sometimes people wonder why aeroplanes are so cheap and rockets are so expensive. Even the most superficial comparison shows one obvious difference: aeroplane engines use outside air to burn their fuel, while rockets have to carry their own oxidisers along.
Henry Spencer / Programmer
Space
Aeroplanes
Comparison
Engines
Expensive
Fuel
Obvious
Rockets
Superficial
Space People Sometimes
Burn
Cheap
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Historically, the U.S.'s big launchers fly seldom enough that their costs are dominated by annual upkeep of facilities and staff, not by the actual cost of each launch. The expensive part is maintaining the launch capability, not actually conducting launches.
Henry Spencer / Programmer
Capability
Conducting
Cost
Expensive
Maintaining
Staff
Actual
Annual
Dominated
Facilities
Historically
Launch
Seldom
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Sometimes a malfunctioning test setup actually gives the tested system a chance to show what it can do in an unrehearsed emergency. During a test of an Apollo escape system in the 1960s, the escape system successfully got the capsule clear of a malfunctioning test rocket.
Henry Spencer / Programmer
Apollo
Emergency
Escape
Rocket
Setup
Successfully
Test
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Trying to build a spaceship by making an aeroplane fly faster and higher is like trying to build an aeroplane by making locomotives faster and lighter - with a lot of effort, perhaps you could get something that more or less works, but it really isn't the right way to proceed.
Henry Spencer / Programmer
Faster
Right Way
Lighter
More Or Less
Proceed
Spaceship
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Henry Spencer Quotes - Page 2

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