Re[2]: [RCSE] RE: Hobie Stories:

rapaquette Wed, 22 Sep 1999 09:10:47 -0700


STEVE:  I also have a 120-incher.   It does fly slower than the 100-inch, but 
has a better L/D and less sink rate.  The reason it is slower, is that the wing 
loading is lower than the 100 inch version, but the drag is more.  If you add 
ballast weight you can speed it up.  BUT!!!   The wings were never designed for 
a winch launch.  
The reinforcing in the root area is the same as the 100 inch was, so the stress 
during a launch is much greater.  The maximum launch pull force for the Hobie 
was 10 lb.  They should be "Kited" up like on a Hi-Start, never "Zoomied".

The idea behind the 120 inch wing was to thermal,  the 100 inch was a slope 
ship.  The one thing the 120-inch wing can do is pirouette in a thermal.  You 
can crank it into a incredibly tight circle. It is spectacular to see.
One thing you cannot do with the 120-inch wings is spot land.  The wing bottoms 
touch the ground the same time as the fuselage, so any roll offset guarantees a 
ground loop.  A skeg doesent help much.  They just land too fast. 

One of the untold truths about the Hobie, is that the fuselage centerline needs 
to   

How to get better performance:  Cut a new set of wings out of Blue foam and 
sheet with Obeechee.  Use a SD-7037 Airfoil and no polyhedral.  Use 15 or 14 % 
thickness, and it will scream.  Also, make a set of built-up tail feathers 20 % 
larger in area than the stock ones.  Make sure they are lighter than the stock 
ones.  

The real answer is to just sit back and enjoy the way the Hobies fly.

 

______________________________ Reply Separator _________________________________
Subject: Re: [RCSE] RE: Hobie Stories:
Author:  [EMAIL PROTECTED] at mime
Date:    9/22/99 8:14 AM


Hey Guy!

Perhaps you can help me!! I just got a hold of a NIB Hobie with the extra 10
foot wings!! here is the problem I can not seem to get this plane to fly
right I have set it up as outlined in the Original Hobie manuel and it is
just not right! (by the way ten foot wings flex ALOT on a winch!).  With the
100 inch wings it seems to fly ok but, with the ten footers it just wont
trun...this makes no sense to me as the tail moment is much shorter with the
ten footers!

any help or ideas as to how to get my Hobie to perform would be great.. I
remember in my youth (NOT misspent) watching Hawks flying over Malibu for
hours!  I now live in Nebraska... we have no ocean, no mountains just flat
land it Sucks..... I miss the surf!!!!!!!!!! got two boards hanging up in my
garage just rotting away! believe it or not my kids dont believe daddy
toured the world on those two boards and I will keep them forever!

Thanks and yes I do ramble a little,

Steve D
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, September 21, 1999 7:52 PM
Subject: [RCSE] RE: Hobie Stories:


> I used to terrorize the SWSA field on Sundays with that ship, literally!
> It wouldn't come down...  I would swoop and dive through the gaggles at
twice
> the speed of the Windfrees and BOT's.
> I don't know what happened to that (Orange) Hobie Hawk, but I have Six
now.
>
> Annnd  TWO Hobie -16's
>
> RCSE-List facilities provided by Model Airplane News.  Send "subscribe"
and "unsubscribe" requests to [EMAIL PROTECTED]


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Date: Wed, 22 Sep 1999 10:14:49 -0500
From: Steve Dworsky <[EMAIL PROTECTED]>
Subject: Re: [RCSE] RE: Hobie Stories:
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Re[2]: [RCSE] RE: Hobie Stories:

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