The earliest picture I have of my A6 with 45 degree LE is dated 2007. I
believe I used it in 2006 but don't have any pictures or plans showing
that. I have a picture of my first version of my current model made in
2006 but it shows a sharp LE made by extending the condenser paper past
the LE and then folding it back to the underside of the LE. I decided
that was probably pushing the good will of the CD a little too far so
went with the 45 degree LE on the next wing I built.
On 4/4/2016 9:54 AM, Warthodson_at_aol.com [Indoor_Construction] wrote:
>
> The first time I saw the leading edge of a wing on an indoor free
> flight duration model rotated 45 degrees was on Emil Schutzel's A6,
> many years ago. He is not on this list, so I thought I would give him
> credit for the innovation & try to smoke out more discussion on how
> old this idea really is.
> Gary Hodson
> -----Original Message-----
> From: upwind120_at_gmail.com [Indoor_Construction]
> <Indoor_Construction_at_yahoogroups.com>
> To: Indoor_Construction <Indoor_Construction_at_yahoogroups.com>
> Sent: Sun, Apr 3, 2016 8:02 pm
> Subject: [Indoor_Construction] Re: Is there a simple way to lay out
> different camber arcs?
>
> Banana ribs…after I find the sweet spot on the french curve, I mark
> the chord on it with a Sharpie a tiny bit overlength (the ribs will be
> cut to the correct length later in the process). Then I move a little
> further along the french curve, toward the straighter end, and mark
> the chord in a different color. That becomes the bottom contour of the
> banana rib.
>
> Now I use the one template (the french curve) to cut tops and bottoms
> just by sliding it right and left on the blank. If I'm building a
> wing with a Gowan style front spar it's easy to make the front .08 (so
> I can notch it) and the back end .06.
>
> I'm working on a P-18 whose plan calls for the top of the front spar
> to be radiused, presumably for aerodynamic purposes. This further
> weakens the most vulnerable stick in the whole model. Rolling the
> square stick 45º like OlBill does is the natural solution.
>
> a.
>
Received on Mon Apr 04 2016 - 07:36:17 CEST
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:48 CET