Landing at the world's lowest airport...

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oamir
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Landing at the world's lowest airport...

Post by oamir »

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Aart
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Re: Landing at the world's lowest airport...

Post by Aart »

Very nice Ofer! You got lucky on the shadow of the aircraft at landing, or was that carefully planned? ;)
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oamir
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Re: Landing at the world's lowest airport...

Post by oamir »

I wish I could plan that
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Re: Landing at the world's lowest airport...

Post by CFIDave »

I never considered how an Austro engine FADEC would operate at such a low altitude. Worst case would be operating at -1200 feet on a day with very high barometric pressure/QNH. The FADEC's programming must be able to accommodate an extremely low pressure altitude (i.e., air pressure very high) and be not "out of range."

A different problem exists when landing at high altitude airports: Bringing the throttles back to idle still results in more than 30% power -- the engines are programmed to do this to prevent "combustion extinction." This may create a challenge when taxiing at 10,000 foot airports such as at Leadville, Colorado (9934 feet MSL).
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neema
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Re: Landing at the world's lowest airport...

Post by neema »

CFIDave wrote:I never considered how an Austro engine FADEC would operate at such a low altitude. Worst case would be operating at -1200 feet on a day with very high barometric pressure/QNH. The FADEC's programming must be able to accommodate an extremely low pressure altitude (i.e., air pressure very high) and be not "out of range."

A different problem exists when landing at high altitude airports: Bringing the throttles back to idle still results in more than 30% power -- the engines are programmed to do this to prevent "combustion extinction." This may create a challenge when taxiing at 10,000 foot airports such as at Leadville, Colorado (9934 feet MSL).

Minimum power to maintain a flame is not a new issue. PT6s are at 55-60% power all the time while idling. It'd be nice if the props could pitch flat like a turboprop for zero thrust. Beta would be nice too Image
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