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Old Sep 06, 2011, 09:01 PM
A great day is good lift!
d_maroney's Avatar
United States, TN, Hendersonville
Joined Jul 2006
78 Posts
SHREVE
You willing to let go either of those Grand's on your shelf (in the box)?
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Old Sep 07, 2011, 11:25 AM
build, launch, rekit...
Shreve's Avatar
Columbia, MD
Joined Oct 2003
167 Posts
Quote:
Originally Posted by d_maroney View Post
SHREVE
You willing to let go either of those Grand's on your shelf (in the box)?
Not Yet. To me, this was one of the most beautiful sailplanes ever.
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Old Sep 09, 2011, 12:02 AM
Balsa breaks better
Thermaler's Avatar
Buchanan Mi
Joined Apr 2005
2,076 Posts
Quote:
Originally Posted by Shreve View Post
Not Yet. To me, this was one of the most beautiful sailplanes ever.
The only sailplane more beautiful than the Grand Esprit, the Super Esprit.

Joe
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Old Sep 13, 2011, 11:57 AM
Registered User
Estonia
Joined Oct 2009
80 Posts
Little progress

Just received my new mandrel for GE boom rolling. Itīs full steel and exactly the size and taper like in the drawings. I also did the part which goes into the fuselage not to taper but parallel, then itīs better to fit it into the holes in fuse.
Any recommendations for the possible layups is welcome.

Armin
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Old Sep 13, 2011, 03:16 PM
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Florida
Joined Jul 2004
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Here's mine, also scratch built. Spar made very beefy, rolled my own boom from a WalMart pool cue! Very good thermal machine. Lands like a butterfly with sore feet!
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Old Sep 13, 2011, 05:55 PM
life long racing nut & modeler
granada don's Avatar
Granada Hills Ca.
Joined Nov 2009
1,919 Posts
Hi Len

How in the heck did you turn that long taper that is a very nice lathe job!!

It looks like the mandrel is set up for being held in centers you could use them for installing your glass cloth and be able to rotate it to keep the cloth tight while putting on the resin, i have some of the carbon felt and it is .004 thick you could use some of this too in having glass & carbon layers and help add to the stiffness of your tailboom.

Looks like you are off to a good start, good luck and have fun in your GE build.

G Don
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Old Sep 14, 2011, 12:56 AM
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Estonia
Joined Oct 2009
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Really the mandrel is put together from three parts, because putting this long and thin thing into lathe is quite impossible. Parts are screwed together but the connections are almost invisible. I didīnt lathe this myself, I know a craftsman whoīs dayjob is making molds and dies for jewellery So this wasīnt too hard for him.

Armin

NB! Thermaleer, very nice plane. I have these photos in my computer from earlyer time, to look and get some inspiration maybe for my own. What was your tailboom layup?
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Old Sep 20, 2011, 03:04 AM
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Estonia
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80 Posts
Question about spoiler servo. Original drawing show one servo inside the fuse, that means connecting spoiler control lines every time when assembling the plane. Question is, is there any reason why not to put little servo into each wing. It would be much easyer to connect the wires, maybe build some connector directly to wing root.

Armin
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Old Sep 20, 2011, 09:19 AM
Balsa breaks better
Thermaler's Avatar
Buchanan Mi
Joined Apr 2005
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This is how I did mine using a Deans three pin connector.

Joe
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Old Sep 21, 2011, 02:44 AM
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Estonia
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Thanks, thats about how I thought it myself. Seems much easyer than connecting control lines and checking if they have tension etc.

Armin
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Old Sep 23, 2011, 11:11 PM
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ErcoupeEd's Avatar
Joined May 2004
1,487 Posts
We didn't have servos this small when the GE first came out
Much easier to use a small spoiler servo now
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Old Oct 18, 2011, 12:12 PM
Registered User
Estonia
Joined Oct 2009
80 Posts
Today I wrapped my GE spars with Vectran tow. Now I will paint the tow with epoxy.
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Old Oct 24, 2011, 02:29 PM
Registered User
Estonia
Joined Oct 2009
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Glued the stab together. Put the halves on the drawing to get the right angle and some square scrap wood to support the thing and get it precisely perpendicular.

Armin
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Old Oct 26, 2011, 12:43 AM
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Buran's Avatar
Huntington Beach
Joined Aug 2000
728 Posts
Look here, a Grand Esprit for sale on the bay.

http://www.ebay.com/itm/AIRTRONICS-G...#ht_500wt_1413

Wow they want a lot.
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Old Oct 27, 2011, 12:23 PM
Registered User
Estonia
Joined Oct 2009
80 Posts
I think here in Europe it wouldīnt be a lot. Everything here is at least a third more expencive than in US. But I like to scratchbuild, building for me is at least half of the fun Quite slow wright now though

Armin
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