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Title: Condor - a powered glider for thermals Post by: rahulroy31 on June 02, 2022, 04:04:01 PM A thermal plank with low wing loading and a low drag airfoil. It has elevons and an active rudder.
Dimensions and details Wing Span panel1 =695 mm, Wing Span panel 2 =298 mm, Total = 1986mm (corrected) The Airfoil - HS 117. Cord panel 1 =250mm, Cord panel 2 (tip) =150mm Sweep panel 1 =0, Sweep panel 2 (tip) =30mm Dihedral panel 1 = 20mm, Dihedral panel 2 = 150mm Vertical Tail to wing TE distance = 410mm, Vertical Tail cord 100mm, Vertical tail span 230mm Control surfaces are elevons and rudder The wing is hotwired out of EPS and covered with fiber-glass (vacuum bagged). There is a CF tow (5mm) running on top and bottom at 30% cord. The two outer panels of 298mm each are detachable for ease of carrying. The elevon cord is 40 mm and it is across the whole length of the inner panel. It has a kevlar hinge built into a skin, and the underside gap sealed with mylar (BO-PET film)strip Wing area in inches = 723.4 sq inch Electronics 2212 980kv motor, 30A esc, 9x5 folding prop, 2200mah 3s bty, 2 x 17 gm servos, 1X 9 gm servo, AUW = 903gm, 31.85 oz (with a 2200mah 3S bty) Wing loading = 6.34 oz/sq ft Wing cubic loading = 2.8 Spiral stability = 4.63, Vv = 0.015, Eda = 10.47 CG @20% SM = 1.54cm, @15% SM = 2.73cm Happy Flying Title: Re: Condor - a powered glider for thermals Post by: K K Iyer on June 02, 2022, 07:22:39 PM @rahulroy31,
A 3m glassed wing model at 6oz loading? Quite an achievement! Congratulations. :hatsoff: Please share gsm of glass cloth used. And I can’t find any reference to HS117 airfoil :banghead: Regards Iyer Title: Re: Condor - a powered glider for thermals Post by: yash10896 on June 02, 2022, 07:40:46 PM @KK Iyer uncle
Here is the reference to HS117 airfoil :hatsoff: https://www.aerodesign.de/profile/profile_sp.htm#hs117 (https://www.aerodesign.de/profile/profile_sp.htm#hs117) Title: Re: Condor - a powered glider for thermals Post by: K K Iyer on June 02, 2022, 07:54:41 PM @KK Iyer uncle Here is the reference to HS117 airfoil https://www.aerodesign.de/profile/profile_sp.htm#hs117 (https://www.aerodesign.de/profile/profile_sp.htm#hs117) Thanks Yash, Wanted to see the airfoil as reflex, if any, was not visible in the pics posted by Rahul. Title: Re: Condor - a powered glider for thermals Post by: rahulroy31 on June 02, 2022, 09:14:16 PM It is 2m wing (1986mm)... not 3m
Thanks for bring it to notice.. will correct the total span typo in the main post... the rest of the details i.e individual spans, wing area, wt etc are correct I have used a 32 gsm FG cloth, which i had bought from banggood some time back, laid at 45 degree bias.. and it has a CF tow built up spar For airfoils I refer to aerodesign.de a lot.. Title: Re: Condor - a powered glider for thermals Post by: sanjayrai55 on June 03, 2022, 10:52:15 AM Excellent design and build
Waiting for the flight video Title: Re: Condor - a powered glider for thermals Post by: sbajare on June 07, 2022, 12:56:12 PM HI Rahul,
Myself Sandeep from Hadapsar. Excellent build. Where in Pune are you flying? Regds Sandeep Title: Re: Condor - a powered glider for thermals Post by: rahulroy31 on June 10, 2022, 07:53:52 PM Dehu ..
Regards Rahul |