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Aircraft 1st flights!

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Old 8th May 2011 | 09:23
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Aircraft 1st flights!

Maybe a stupid and obvious questions but when companies (Boeing, Airbus, etc) conduct their FIRST flight of a new type why do they keep the gear down and then retract it maybe 1 hour into the flight?
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Old 8th May 2011 | 14:40
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From: La Belle Province
To first make sure nothing else is wrong that might impede lowering the gear.

There's also a bunch of handling assessments with the gear down, since if the aircraft, for whatever reason, handles like a pig gear down, you want to know about it as soon as you can, since gear down flight is required on every flight; gear up is optional.
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Old 8th May 2011 | 22:14
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Note carefully - the above comments DO NOT apply to seaplanes.

They do, however, apply to fixed-gear landplanes.
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Old 9th May 2011 | 02:44
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It would apply to an amphibious aircraft being tested from a land runway, though. Not sure if anyone TODAY does amphib first flights from water.
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Old 9th May 2011 | 12:54
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Hmmm - interesting point.

But I'd think that water-handling characteristics would be a very early priority, because rectification of hull design is a bit more complex than shimming the undercarriage.
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