New lightweight wing.

[Paul1954]

Neil, flaps suggestion cam from Jim, not me.

This thread does sound like the thought process that led to the development of the Acro Advance.

[JimCrawford]

Neil,

Yes, flight line not attitude. I must have had a senior moment to have forgotten that. Especially as it was a particularly tricky issue competing in glider aerobatics where the flight line defines the entry speed into the next manoeuvre so has to be set up on exit from the previous right through the sequence. I would guess that this would feature to some extent with the Nipper as, even with a lightweight airframe and perhaps 80hp available, powering through isn't really a big option. Unlike the exotics with 260+hp and wobbly prop!

Have you seen Jim Marske's book 'Composite Design Manual', 'a structural guide to fibreglass and carbon wing construction'?
Full of good, practical stuff and convinced me to look at carbon spars for my Flitzer build.

Jim

[Neil Spooner]

I have not seen the book, hard to come by and quite expensive.

[JimCrawford]

Just looked it up on the web

https://marskeaircraft.com/composite-design-manual

$80.00, I don't recall it being that pricey, also there is the postage which was $37.00 in 2021 so you are looking at probably $130 now. However the information it contains is invaluable and very practical and I'm glad I bought it. If I needed to buy it again I would without hesitation. I think it should be readily available from marskeaircraft.com

Jim

[JimCrawford]

Could be well worth looking through this very involved discussion:

https://www.homebuiltairplanes.com/foru ... ing.40086/

I find the information helpful and thought provoking.
Jim