[NSRCA-discussion] Paysant-Le Roux's Oxalyis using a wingletaft of canop...

[Anne et Xavier]

I also heared that he did it so people would talk about it unstead of
the electrics at the world :-)  I don't think it worked... 
Xavier
 

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of
Rcmaster199 at aol.com
Sent: May 24, 2006 11:25 PM
To: nsrca-discussion at lists.nsrca.org
Subject: Re: [NSRCA-discussion] Paysant-Le Roux's Oxalyis using a
wingletaft of canop...


Don Lowe discusses a little bit about such devices in the latest MA. One
of the photos also shows one of his pattern models retrofitted with the
device and I think he stated that in his set-up it wasn't terribly
effective. The amount of vertical and horizontal area the little "T
tail" adds may be too small for a 2 m pattern model, CPLR
notwithstanding. 
 
The concept is a good one tho, and the idea has been around since at
least the Wright Bros, although they may not have used the wing
intreplanes with that specific purpose in mind. To my knowledge, Nat
Penton originally applied the idea on a model more than 20 years ago. I
wrote about that and even played with it in my own models a bit. Back
then, the schedules we flew were not that demanding and couldn't really
take advantage of the concept, but the schedules we fly now certainly
will be easier to fly with such appendages on the models.
 
Now the horizontal surface angled at the correct incidence could
possibly be enough to counteract the notorious pitch to landing gear
that CPLR designs are infamous for with top rudder application. On the
other hand, CPLR is gifted enough pilot to overcome the model deficiency
on his own, but hey, if he believes it helps, then it does help him and
hurts everyone else flying against him.
 
MattK
 
In a message dated 5/24/2006 10:44:24 PM Eastern Standard Time,
falcondoc at sbcglobal.net writes:

Sorry if this has already been discussed but,
 
I was reading the latest issue of  Model Aviation this evening and saw a
picture of Christophe PAysant-LeRoux's Oxyalis with a "winglet" mounted
aft of of the canopy. What is the function of this winglet? Has anyone
on this list used this? Thanks..........

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