Vin rouge......I said I thought it would be hugely complicated.....so thank you for not disappointing. In layman’s (ie simple pilot terms) would it be even possible to hazard a rough guess as to how much more stress deployed flaps would be under at 5 degrees or 30 degrees (I have no idea if it is 10% or 50%). Take your point though that it is cycles that are the primary factor.
scfi, I used to work at Broughton many moons ago. I also said my calc was basic. The 20 Tonne figure was essentially the exposed flap surface as a percentage of the 350 square metres of lifting surface. Effectively half a tone per square metre.Dont quite get your “aileron decoupled” comment the clean scenario in a non gust load alleviation scenario.