>Subject: Flexifoil stack and power
>Date: 27 Jun 1994 09:34:03 GMT
>Thanks for the net.wisdom, generated from my last post regarding
>my observation that the pull generated by a single flexi I was
>flying being more than doubled when a second was stacked.
>As I was flying in a fairly low wind I can only suggest that putting
>the second flexi in the stack caused the speed of the whole to increase
>and thus increased the total power, hence my observation.
> Mr Paranoid sends me messages, he says that THEY have taken over
> my employers; I fool them by disseminating my own opinions!
Similar things in the boating world. The foresail or jib increases the
speed of flow of air over the rear of the main sail and hence its lift.
So maybe the second flexi has simialar effects.
Dr Andrew H.J. Tate
/\ Computer, Control & Instrumentation Support,
\/ Dept of Chemical & Process Eng,
/ University of Surrey,
Q / Guildford, Surrey GU2 5XH Tel: +44 483 259515 (&V32bis)
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