Sender: <marv@lancaironline.net> (Marvin Kaye)
To: lml
Date: Thu, 16 Jan 2003 12:44:46 -0500
Message-ID: <redirect-1990450@logan.com>
From: "JJ JOHNSON" <JJJOHNSON@ACCESSCOMM.CA>
References: <list-1990112@logan.com>
Subject: Re: [LML] Re: Wing Loading mysteries
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Scott/ Earl

    I can elaborate on some of the questions asked, however I to would like
to know if the spar is the same or not.

1: the wing tip is different, the original 235 had a drooped outer tip, this
created more induced drag and was subsequently changed.
2: The reason the fuel quantities are different was that the original
200/235 was intended to have fuel in front of the spar only[as well as a
small portion out board of the aileron bellcrank?? - I think] . Many
builders were changing that and putting fuel behind the spar all the way out
to the bell crank and also extending the tanks by moving the bellcrank
location outwards a couple inches. [ they weren't putting any fuel in front
of the spar.] this increased the fuel tankerage [if that's a word].
3: The original flap fairing was at the 0deg. location however in subsequent
models they decided to make it fair w/ the flaps at 7 deg. reflex as this
improved drag qualities. The difference in the flaps between the 235 and the
320 is that the 235 was designed w/ a top skin hinged flap system verses the
'newer and improved' 320 style which had the flaps hinged off the bottom
skin. This to is where the difference of flap movement comes from. The 235
and the original 320 tail are EXACTLY the same. The only improvement that
was made from the 235 to the 320 was a second spar, forward of the standard
rear one. If 235 builders make this change up during construction they have
in essence a 320 tail [ however its still not a MKII]
4: As to gross weight considerations, that is one question I'd like an
answer to as well.

Jarrett Johnson

235/320 55%