WonderousMountain
Well-Known Member
A CP around 30 is not altogether uncommon,
In my opinion it's not good practice to place your spar at CP in D cell structures, because the rest of the D cell is forward. Better practice would be to place the beam at greatest depth or as far back as 40% depending on how substantial the D is.
On 'humble' airplanes sometimes minimum thickness becomes the primary design element, which is one reason theory and practice frequently differ.
LuPi
In my opinion it's not good practice to place your spar at CP in D cell structures, because the rest of the D cell is forward. Better practice would be to place the beam at greatest depth or as far back as 40% depending on how substantial the D is.
On 'humble' airplanes sometimes minimum thickness becomes the primary design element, which is one reason theory and practice frequently differ.
LuPi