Title: Homemade, self-designed HLG Glider Post by: aaindthu on September 27, 2018, 04:55:57 AM I designed and finished building a Hand Launch Glider. Here are the pics.
I am going to test it out on Saturday. Wish me luck, I guess I will need a lot. :-\ Title: Re: Homemade, self-designed HLG Glider Post by: sanjayrai55 on September 27, 2018, 05:08:25 AM Looks good {:)}
All the best for the maiden :thumbsup: Title: Re: Homemade, self-designed HLG Glider Post by: aaindthu on September 27, 2018, 09:01:11 AM Looks good {:)} All the best for the maiden :thumbsup: Thank you :) Title: Re: Homemade, self-designed HLG Glider Post by: Prakhar Verma on September 27, 2018, 09:32:12 PM Did you use balsa to make it
Title: Re: Homemade, self-designed HLG Glider Post by: aaindthu on September 28, 2018, 11:17:02 AM Did you use balsa to make it that's just high density foam. I will upload the build video if the glider is successful Title: Re: Homemade, self-designed HLG Glider Post by: Ajay Sarwan on September 28, 2018, 12:39:39 PM Hi. Where did you buy HD foam and how much was it?
Title: Re: Homemade, self-designed HLG Glider Post by: Imperial fire on September 28, 2018, 07:18:20 PM u can get better results is u use styrofoam... stiffness weight ratio is excellent
i dont make airplanes anymore but the last time i used blue styrofoam i smiled a lot. got it form a shop in bangalore near townhall. cant recall its name tho. Title: Re: Homemade, self-designed HLG Glider Post by: aaindthu on September 29, 2018, 08:17:29 PM Today I learnt myself One big lesson
It is a BAD idea to put symmetric airfoil in a glider especially when there is no slope for soaring.. My glider was working fine, it turned left, right, pitching up and down but.. it never climbed. I think it was because of the symmetrical airfoil that i used or it could also be because there was no significant slope from where I tried. But I am going to try again with a camber airfoil next week with the same fuselage. So, the bottom line is that my glider design is a flop. But I will try again. Title: Re: Homemade, self-designed HLG Glider Post by: K K Iyer on September 29, 2018, 09:50:49 PM How did you launch?
Title: Re: Homemade, self-designed HLG Glider Post by: aaindthu on September 30, 2018, 03:36:40 AM How did you launch? nothing fancy. Simply hand launched it against the wind. I am going to try again with A cambered airfoil next week. That should work. Title: Re: Homemade, self-designed HLG Glider Post by: shobhit17 on September 30, 2018, 08:21:19 AM Well friend...... if the glider flew straight and level with a simple hand launch.... IT DID FLY WELL..... DO not be dissapointed.... a glider does not climb till it is taken higher by a thermal or it is launched by an external device like a Tow line or another aircraft / model.
if the glider is fine try doing another hand launch straight and level to the ground and show he video... Yes a symmetrical airfoil is not good for a glider. But it does not mean that with a cambers aerofoil it will climb...... Title: Re: Homemade, self-designed HLG Glider Post by: aaindthu on September 30, 2018, 10:51:45 AM Well friend...... if the glider flew straight and level with a simple hand launch.... IT DID FLY WELL..... DO not be dissapointed.... a glider does not climb till it is taken higher by a thermal or it is launched by an external device like a Tow line or another aircraft / model. if the glider is fine try doing another hand launch straight and level to the ground and show he video... Yes a symmetrical airfoil is not good for a glider. But it does not mean that with a cambers aerofoil it will climb...... I know aircraft cannot climb without thrust. I meant that with a camber airfoil, the glider may stay airborne for longer duration. I know it cannot climb.. Thank you for your kind words. They are encouraging. Title: Re: Homemade, self-designed HLG Glider Post by: aaindthu on October 02, 2018, 06:12:26 PM Due to lack of any significant slope in my location, my glider could not fly well.
Therefore, I am quitting to build slope soarer or gliders - for now. I will return with some other project soon ;) thank you all. Title: Re: Homemade, self-designed HLG Glider Post by: Ajay Sarwan on October 02, 2018, 06:19:37 PM All the best.
Where did you buy HD foam and how much did it cost? also what is the density of your HD foam? Title: Re: Homemade, self-designed HLG Glider Post by: Kratky8 on October 02, 2018, 06:42:26 PM Very neat! Where did you try out the glider? If you have a friend in tall apartment buildings at ecr you can maybe try the hand launch from there ;)
Good luck with your next build! Title: Re: Homemade, self-designed HLG Glider Post by: aaindthu on October 03, 2018, 05:25:03 PM All the best. @Ajay Sarwan - I bought the hd foam in sheet form in nearby fancy store in avadi, chennai. they call it "hi-tech" thermocoal. it costs Rs 45/- per sheet (1mX.5mx2cm)Where did you buy HD foam and how much did it cost? also what is the density of your HD foam? |