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Old Nov 30, 2012, 02:22 PM
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F86 Sabre with JetCat P20SX

Hello,

I start build F86. Based on foam F86 from HobbyLobby - wingspan 1400mm
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Last edited by grapo; Nov 30, 2012 at 02:35 PM.
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Old Nov 30, 2012, 02:52 PM
310mph Kolibri T25 Swist
henke's Avatar
Sverige, Kronobergs Lšn, Ljungby
Joined Jan 2001
4,699 Posts
A P20 will fly this bird just fine, but I would absolutely mount the turbine much closer to the CG and und a thrust tube from grumania. Installed in the right way a thrust tube might even increase the thrust (amir@hab.se sells test and tune benches for P20SX) In that way you will save 1lb+ on the AUW and keep the thrust :-)

I know me and a friend have been flying these kind of planes with turbine power for a while :-)

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Old Dec 01, 2012, 10:12 AM
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This plane is from foam and build in the exhaust and turbine in CG - very danger for heat :-(

In this case I do like this - the weight of the turbine is cca 300g and I put only the batery forward and that will be fine for right CG.

Today I started my turbine first time - SUPER all was work well
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Old Dec 01, 2012, 12:33 PM
310mph Kolibri T25 Swist
henke's Avatar
Sverige, Kronobergs Lšn, Ljungby
Joined Jan 2001
4,699 Posts
Quote:
Originally Posted by grapo View Post
This plane is from foam and build in the exhaust and turbine in CG - very danger for heat :-(

In this case I do like this - the weight of the turbine is cca 300g and I put only the batery forward and that will be fine for right CG.

Today I started my turbine first time - SUPER all was work well
P20 Weights 372grams. It's no problem with the heat inside the fuselage. A turbine is not very hot, only the exhausts are :-)



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Old Dec 02, 2012, 02:22 PM
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Hello,

there is a link on first start turbine in plane:

http://www.youtube.com/user/GrapoAirTech
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Old Dec 04, 2012, 09:16 AM
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The last check of fuselage before welding together
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Old Dec 04, 2012, 09:17 AM
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complete plane and view on cocpit
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Old Dec 04, 2012, 03:38 PM
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Grapo, how did you insulate the turbine from the plane’s walls?
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Old Dec 05, 2012, 05:42 AM
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Nothing special, the space between the turbine and wall of fuselage is enough for cooling. I add only the aluminium foil on exhaust part - during start there were little bit higher temperature - I have a 5 test runs of turbine and no problem
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Old Dec 13, 2012, 12:14 PM
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Today I finished the marking and stencils on the plane. When will be right weather I start with taxiing
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Old Dec 22, 2012, 04:20 AM
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Finally - maiden flight :

F86 Sabre - JetCat P20SX turbine - Flight (6 min 41 sec)
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