After my post yesterday I requested some info on PPrune on just how tge flap vane cutaway works.

I was referred to the following paper:
www.aerosociety.com/media/48...hawk-story.pdf

p 28 to 30 are particularly relevant.

It is a long document, 120 pages, but covers all the aerodynamic quirks of the original Hawk and how they were fixed.

Of particular interest were the stalling characteristics and the phantom dive (which seems to have claimed several models ) and how they were cured on the original Hawk and later versions such as the Hawk 100 and the T45.

My earlier recommendations were sound, particularly limiting flap angle, and have produced a most docile model.

If you want BAe drawings of the Hawk wing buy “Red Arrows “ ISBN 1-85443-217-6.

A copy was sent to me some years ago by Duncan Simpson as he recommended the drawings, the original being no longer available.

Set up your Skygate/carf/Airworld Hawks as I have suggested based on professional recommendations and you will have a delightful handling , safe and docile model Hawk.