RE: CatHLG Questions

From: Don DeLoach <ddeloach_at_adelphia.net>
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 Thu Apr 27 2006 - 11:39:26 CEST

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