Don, thanks a bunch. I built a small (8") flapper recently and was shocked that I had to crank in a pile of washout into the wingtips to get to to glide properly. I'm still not happy with it...there's more in it, but I did get 29 sec under a 30 ft ceiling.
Good flying,
Joshua Finn
> ----- Original Message -----
> From: "Don DeLoach" <ddeloach_at_adelphia.net>
> To: Indoor_Construction_at_yahoogroups.com
> Subject: RE: [Indoor_Construction] CatHLG Questions
> Date: Thu, 27 Apr 2006 12:38:25 -0600
>
>
> Joshua,
>
>
>
> Depends on what you mean by "low ceiling". Cat 1 gliders are always launched
> straight (no spiral climb). Gliders for a 50 ft ceiling are launched like an
> outdoor glider, in a right bank so that they turn right/roll left on the way
> up. These usually have larger stabs than cat 1 flappers.
>
>
>
> For Cat 1 most guys just use left rudder for transition and glide turn. Stab
> tilt doesn't work too well on Cat 1 gliders because the stabs are so small
> and CGs far forward.
>
>
>
> Basic aerodynamics: large stabs increase stability but make transition
> tougher. Smalls stabs are good for transition, bad for stability. Knife-edge
> stability is okay for indoor gliders because they don't have turbulence to
> upset them. Rudder adjustments are very effective at high speed so small
> amounts can be very effective.
>
>
>
> --Don D
>
>
>
>
>
>
>
> _____
>
> From: Indoor_Construction_at_yahoogroups.com
> [mailto:Indoor_Construction_at_yahoogroups.com] On Behalf Of Joshua Finn
> Sent: Thursday, April 27, 2006 7:02 AM
> To: Indoor_Construction_at_yahoogroups.com
> Subject: Re: [Indoor_Construction] CatHLG Questions
>
>
>
> While ya'll are explaining that, could you also give some advice on trimming
> low-ceiling gliders? I built one recently and the trimming process caught me
> by surprise to say the least.
>
> Good flying,
> Joshua Finn
>
>
> > ----- Original Message -----
> > From: barrysholder <barry_at_signandart.com>
> > To: Indoor_Construction_at_yahoogroups.com
> > Subject: [Indoor_Construction] CatHLG Questions
> > Date: Thu, 27 Apr 2006 12:33:20 -0000
> >
> >
> > I'm back with more questions. OK, on a lot of the plans ,carbon fiber
> > is called for in strategic places. I assume that on the fuselage it is
> > for stiffening purposes. How thin is the balsa on a std.catHlg
> > fuselage typically. Then, how is the carbon fiber
> > applied,CA,duco,ambroid? Then, on the wings with the carbon fiber
> > running span wise what function does the carbon fiber serve. Is that
> > area that thin or what. I have carbon tow and some .002 sheet. I am
> > wanting to be more competetive but don't know the tricks. Thanks guys
>
> >
>
>
> --
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Received on Sat Apr 29 2006 - 12:36:18 CEST