Re: [RCSE] Two meter gliders

2004-04-03 Thread Rick Van Clief
Is it the overall weight that matters or the wing loading? Reason for 
asking - my LAR 2M will come in at 5 oz/ft^2 at 36 oz.  21 oz. will be 
unobtainable.  Airfoil is the AG36 thinned to 90%.

Thanks.

RVC



My 2-meter Aegea weighs 21 oz, with a 6.2 oz/ft^2 loading,
and I wish it was a bit lighter.

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RE: [RCSE] Two meter gliders

2004-04-03 Thread Neil Stainton
I calculate your model's wing area is 7.2 sq ft with an aspect ratio of
only 6. Are you sure of the wing area? Big span and low wing loading
mean low induced drag, but all that wetted area (if correct) will
increase the profile drag. 

IMO for pure gliders (rather than electric ones) weight isn't important,
wing loading is.

Neil Stainton
Leamington Spa, UK.
 
 -Original Message-
 From: Rick Van Clief [mailto:[EMAIL PROTECTED] 
 Sent: 03 April 2004 17:52
 To: [EMAIL PROTECTED]
 Subject: Re: [RCSE] Two meter gliders
 
 
 Is it the overall weight that matters or the wing loading? Reason for 
 asking - my LAR 2M will come in at 5 oz/ft^2 at 36 oz.  21 
 oz. will be 
 unobtainable.  Airfoil is the AG36 thinned to 90%.
 
 Thanks.
 
 RVC

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[RCSE] Two meter gliders

2004-04-01 Thread hung-sheng


I've been flying HLG/DLG (~11oz AUW, 4oz/ft2 wing loading) for some time and
I'm considering upgrade to a 2m floater with 6-servo full house capability.

I'm not sure what AUW or wing loading should be for a 2m floater that feel
like  (in terms of thermal capability) a HLG/DLG while maintain a reasonable
penetration capability (possible light wind slope soaring).

Following is some of the choices available on the market with fully- or
partially-molded, winch-launchable 2m floaters.

Renny   20 oz   5.9 oz/ft2
Organic 30 oz   7.4 oz/ft2
Enigma  32 oz   8.0 oz/ft2
Mini Graphite   37 oz   8.3 oz/ft2
Start lite pro  34 oz   9.0 oz/ft2

Any recommendation for the right wing loading. Or there are some other
choices available on the market that can meet my needs.

Thanks,
HS

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Re: [RCSE] Two meter gliders

2004-04-01 Thread James V. Bacus
Have you considered just going to a larger unlimited class full house 
ship?  I know it seems like there is a logical progression from 1.5m span 
to 2m span, but...   Not much difference in cost, a larger model will be 
easier to fly and easier to see, and you will have a lot more model options 
to choose from.

If you have to have one from your list it would be the Organic.

Jim

At 10:51 AM 3/31/2004, hung-sheng wrote:


I've been flying HLG/DLG (~11oz AUW, 4oz/ft2 wing loading) for some time and
I'm considering upgrade to a 2m floater with 6-servo full house capability.
I'm not sure what AUW or wing loading should be for a 2m floater that feel
like  (in terms of thermal capability) a HLG/DLG while maintain a reasonable
penetration capability (possible light wind slope soaring).
Following is some of the choices available on the market with fully- or
partially-molded, winch-launchable 2m floaters.
Renny   20 oz   5.9 oz/ft2
Organic 30 oz   7.4 oz/ft2
Enigma  32 oz   8.0 oz/ft2
Mini Graphite   37 oz   8.3 oz/ft2
Start lite pro  34 oz   9.0 oz/ft2
Any recommendation for the right wing loading. Or there are some other
choices available on the market that can meet my needs.
Thanks,
HS
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Jim
Downers Grove, IL
Member of the Chicago SOAR club,  AMA 592537LSF 7560 Level IV
ICQ: 6997780   AIM: InventorJim   R/C Soaring blog at www.jimbacus.net
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