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Old Oct 13, 2012, 11:15 AM
Claus at Area 52
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copenhagen Denmark
Joined May 2002
2,538 Posts
the art of the impossible.

to cut thin and tapered .. with cnc hot-wire can be very demanding.
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Old Oct 14, 2012, 08:45 AM
Claus at Area 52
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copenhagen Denmark
Joined May 2002
2,538 Posts
Alinement of wings.

to have the wing sitting as a straight line on both sides, I use this old trick from my day as carpenter.
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Old Oct 15, 2012, 10:09 AM
Claus at Area 52
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copenhagen Denmark
Joined May 2002
2,538 Posts
I have to make the duct now.

I am doing an other variant for a area ruled duct just to see the difference
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Old Oct 15, 2012, 10:10 AM
deltas are cool
AIR SALLY's Avatar
Tehachapi ,CA.
Joined Apr 2006
20,947 Posts
yep those are some of the longest ducts
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Old Oct 15, 2012, 10:28 AM
Claus at Area 52
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copenhagen Denmark
Joined May 2002
2,538 Posts
it is some 4-5 inch too long at the picture

Claus
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Old Oct 15, 2012, 06:26 PM
deltas are cool
AIR SALLY's Avatar
Tehachapi ,CA.
Joined Apr 2006
20,947 Posts
my plug was about 2" long i think ,it allows you some adj as to where you want your motor/fan.mine needs the motr a bit further fwd of where you had it shown on your drawing ,to keep the batt out of the cockpit.
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Old Oct 18, 2012, 09:41 AM
Claus at Area 52
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copenhagen Denmark
Joined May 2002
2,538 Posts
Making ducts

to make plugs ready for making ducts takes some time!
it have now got its final epoxy coating.
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Old Oct 18, 2012, 02:42 PM
deltas are cool
AIR SALLY's Avatar
Tehachapi ,CA.
Joined Apr 2006
20,947 Posts
yes it does ,i was lucky and got just one to work well enough for both sides.
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Old Oct 19, 2012, 02:35 PM
Claus at Area 52
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copenhagen Denmark
Joined May 2002
2,538 Posts
Ready to glass

they have got sealer, sander and epoxy primer, 4 times of wax and one coat of pva.
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Old Oct 19, 2012, 05:24 PM
PH.D in Scratchbuilding
Denmark, Region Zealand, Holbaek
Joined Sep 2005
327 Posts
Looking good Claus.....
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Old Oct 19, 2012, 05:46 PM
deltas are cool
AIR SALLY's Avatar
Tehachapi ,CA.
Joined Apr 2006
20,947 Posts
yep looking good ,are you installing landing gear in this one ? or are you flying from a bungee?
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Old Oct 19, 2012, 05:56 PM
Mister Fear
USA, NV, Las Vegas
Joined Nov 2010
254 Posts
I just got my hands on a HO scale train transformer.

Time to cut some foam
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Old Oct 19, 2012, 06:03 PM
deltas are cool
AIR SALLY's Avatar
Tehachapi ,CA.
Joined Apr 2006
20,947 Posts
yippee ..it's a fun plane to build ...very shapley...you know the rules post some pics when you get started.
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Old Oct 20, 2012, 09:02 AM
Registered User
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Denver CO
Joined Apr 2008
2,085 Posts
Air Sally,Claus,

Whats the average layup time for this style of ducting, i mean making the plugs,filling, sanding, sanding more, the waxing the pva, to the final product?

Im getting into glass more and more with my builds, and Im thinking of tackling some ducting on my next project. Just want kinda of know what im getting myself into and how deep its going to go into my wallet. :P

I have seen that scratchbuilding isnt as cheap as just going out and buying a airframe.
But who wants the same airframe that a dozen other flyers at the local field have. Its one of the motivating factors that drives me to my creations

So approx time/budget would be some great info.
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Old Oct 20, 2012, 09:51 AM
Claus at Area 52
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copenhagen Denmark
Joined May 2002
2,538 Posts
Making ducts

I have spend 12 hours or so.. plus drying time on this three parts.
to keep the glass in tight contact with the plug I use vacuum bags sealed with my foil iron and wax around the tubes.
vacuum comes from a simple fish-tank pump where we revised the pump direction.
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