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THERMIC 70 by Frank Zaic

Posted by ultralajt on July 22, 2014 at 1:50 PM

Last week I saw a beautiful crafted soarer at nearby RC flying field. My friend build a scaled up Thermic sailplane. It is and old FF design made in 1946 by famous Frank Zaic. Of course, model is R/C and covered by Oralight.


I decided to build for myself original version of Thermic 70. Wing span is 70".

Plans werew downloaded from Internet:



I cut many 3x3mm balsa strips, as these are basic structure of the fuselage.


I made two identical fuselage sides (ladder):


Next I glue some fuselage formers to spread sides to proper distance and to get shape:


Next I add some additional longerons:


And in very short time, fuselage is ready for final sanding:


Of course, I need to instal servo, battery and reciever tray, install elevator and rudder pushrods, install fin ribs and make a removable canopy hatch for RC equippment access.


Categories: Building modells

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