PPRuNe Forums - View Single Post - Ski jumps - why do they work?
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Old 11th December 2003 | 21:44
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Head Turner
 
Joined: Mar 2003
Posts: 573
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From: uk
Nick - I am way ahead of you here!

Way back in the early days of AAC we were equipped with the ever powerful Skeeter which would stay on the ground at max power if the temperature was anyway near warm.

We 'discovered' the ski-jump method of aerial flight which provided enough 'up' to allow the little beast to reach translational lift speed (12 knots) and from there the Skeeter would fly really well.
The Skeeter has wheels and we were used to planning our take-off where there was and adequate area for a rolling run which culminated in a ramp at about the 12 knot ground speed position. And it worked very well

Limited power was all the power we had on a warm day. We learnt techniques to take-off and land that would totally confuse the present breed of rough operators. We had to refine our senses to identify the very smallest whiffs of lift.

This experience has helped me take-off in a 206B/B20 engine at 11,000 feet at 30 degrees C from a village football pitch. Here we didn't use a ski-jump because the skids wouldn't like it.
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