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L-39 Hot Start

Old 17th March 2012 | 14:31
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Question L-39 Hot Start

Can anyone tell me what would happen if you attempted to start a L-39 at 5000 ft MSL with a density altitude of 7,500 if FOD was injested during the start and restricted the intake by 40%. Assume this happens at the moment just prior to introducing fuel into the main turbine.
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Old 17th March 2012 | 18:02
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Look on t`other thread ,Tom...
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Old 17th March 2012 | 20:57
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meltdown..
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Old 5th April 2012 | 05:48
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Just loud thinking...... I don't think it would light up at all-- the charge would be too rich to ignite it seems, though I don't have a data to support this.
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Old 5th April 2012 | 13:40
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Do a Hover - it avoids G
 
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TBM-Legend

Meltdown? -only if you leave the HP cock open after the JPT reaches a sensible max. Surely this applies regardless of the starting conditions - mechanical or ambient.
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Old 6th April 2012 | 20:45
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Agree entirely with JF.

Watched a King Air taxi out last week with both intake pugs left in. Both engines started and ran fine....until an embarrassed crew were notified.

Entirely different engines of course.
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