Ryan NYP - fuselage cross-section

[TheLurker]

I've half a mind to make myself a peanut Ryan NYP in time for the centenary and I've got some moderately good 3 views and photographs, but what I haven't got is a decent cross-section of the fuselage just aft of the wing. 

It's fairly obviously heptagonal, but the degree of "heptagonality" where the fuselage sides meet the top and bottom varies with the source images. In some it's quite marked while in others it's barely there at all.

Anyone able to help with an accurate section at the wing TE?

[billdennis747]

Not sure what you mean Lurk but I assume you've seen the June 1977 Aeromodeller?

[TheLurker]

....I assume you've seen the June 1977 Aeromodeller?

A copy was sitting at my right hand as I typed my plea for help

> Not sure what you mean...
If you've got a copy to hand look at the cover picture and at the angle made from the uppermost longeron to the top of the fuselage at the wing TE and that made from the lowermost longeron to the underside at the base of the rear strut.  Shown as a α & β in the sketch below. That's what I'm after.


Did I say heptagonal?  Well, I'm obviously an idiot. Octagonal.

[TheLurker]

Oh tenfold idiot that thou art!  There's a reason for my post signature and this is the perfect example of it.

I'd forgotten that the June '77 issue has exactly what I'm looking for in the Aircraft Described article.

As you were.

[Stunthenk]

If it is any consolation; I still remember the June '77 issue even though I was 22 when it came out. I do have problems remembering any issues from the last quarter century....

[billdennis747]

I built that Moulton model and it flew exactly as described with no dihedral.

[TheLurker]

...flew exactly as described with no dihedral.

My Dumas Ryan M-1 is the same, including that reluctance to turn remarked upon in Ron Moulton's NYP build article.  It doesn't need anywhere close to the 20^o rudder noted, but it still makes flying my M-1 at Trinity a bit... "brown-trousery".  I'm hoping a peanut NYP will be a more relaxing indoor proposition.