PPRuNe Forums - View Single Post - Performance of early jets and fans at high Airports
Old 18th February 2009 | 08:53
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b377
 
Joined: Nov 2008
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From: The New Forest, UK
Performance of early jets and fans at high Airports

This thread is a spinoff from 707 conversion from Jet to Fan engines as promised...

The question was whether aircraft fitted with these early engines experienced a reduction in MTOW at high airports like Bogota, Quto, La Paz.

Bogota & Quito are about 2,600m (~ 8,500ft) ASL. La Paz a fair bit more.

Piston engine performance was probably afected more.

Even today widebodies (747s and 340s) tankup in Caracas before a transatlantic hop rather than in Bogota. Not sure if this has more to do with the plane landing in Caracas 1.5 hrs after departing Bogota rather than a limitation in MTOF ( i.e. MLW is the issue)

By corollary from the previous thread it would appear that pure jets would fare better at high altitude airports than fans.
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