I have a question concerning "generally accepted practices" when converting
a three view to a set of plans. Recently, I was looking at some three views
of WWII planes & some plans I have, trying to select subjects with good
proportions.
I observed that a few of the plans had much larger wing cords than would
result if the three view were simply enlarged to the specified wing span. Upon
closer inspection, the designer has omitted (deleted) the trailing edge fairing
& relocated the trailing edge of the wing rearward to correspond with the
point where fairing would have met the fuselage. Then the trailing edge of the
wing is drawn parallel to the original trailing edge, thus increasing the
cord of the wing dramatically along it's full span. On one 13" span peanut,
this resulted in a 7/8" increase in the wing cord.
Is this a common/acceptable practice? Do judges deduct for this at large
events like the FAC Nats? Are there other common distortions allowed? For
instance, if the stab is enlarged, is it acceptable to increase the length of the
fuselage in the rear to accommodate the larger stab cord?
Gary Hodson
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Received on Sun Aug 10 2008 - 07:51:50 CEST