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Old Oct 01, 2008, 01:45 AM
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Sweet. That's some nice and smooth balsa. With a pointy tail too :-).
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Old Oct 01, 2008, 03:02 AM
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thanks I just used 220 grit because It is all I have. I need to find a boom though and I can't find any local sorces.
Old Oct 01, 2008, 06:51 PM
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very nice looks like acompetition grade....
Old Oct 01, 2008, 08:41 PM
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Im very particular about my wood selection If the store dosen't have a good quality I can wait a week plus with this particular pod I want to have a natual wood finish ;-)
Old Oct 06, 2008, 02:20 PM
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Started on the wings, still rough.
100g on second pic, still to add spar caps,joining v-shaped plywood piece, little sheeting in center of the wing,throwing peg and reinforcements,covering. Ailerons gonna get also lighter, not decided yet, what kind of holes to make in them.
Last edited by martseger63; Oct 06, 2008 at 04:31 PM.
Old Oct 08, 2008, 01:21 AM
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I was wondering is anyone building there wing and useing the solid tip design? It seems all the people that have posted builds have done a hollow tip like Rendy. If you have can you please give me a over all weight of your wing Please. :-) and thankyou in advance
Old Oct 08, 2008, 03:56 PM
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Quote:
Originally Posted by Zack999
I was wondering is anyone building there wing and useing the solid tip design? It seems all the people that have posted builds have done a hollow tip like Rendy. If you have can you please give me a over all weight of your wing Please. :-) and thankyou in advance
Hi Zack,

I think you can make a solid wing tip very easily. Just use light balsa. When I build my wing tips, I was hopping I can build a light wing tip to reduce overall weight and Izz. Looking back on what I did.... I don't think I have reduced the weight that much. The real trick is to transfer the load from the throwing peg to the main spar. I hope this helps.

rendy
Old Oct 09, 2008, 01:25 AM
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ok I was just wanting to save as much wight as I can. He he
Old Oct 10, 2008, 06:28 AM
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Here's some progress. The weight is 250grams. Elevator and rudder servos in,rx and battery in. Lightening holes to ailerons, cover the wing, and install wing servos, and that's it. I hope to stay under 320grams. My tailboom is also cut too short(10cm shorter distance between wing TE and h-stab LE, original is 45cm, mine is 35cm), but now i dont have to add nose weight to compensate longer tail.

Edit: FINISHED!
Auw- 320grams, CG at 1cm behind the spar.
Wing weighs 150grams with two servos. Can't wait to give her the first toss.
Last edited by martseger63; Oct 21, 2008 at 04:17 PM.
Old Oct 22, 2008, 03:39 PM
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She flew great! Yet again i maidened my Manta in high winds. 20mph this time to be exact. Definately launches higher with a proper tailboom. Flies better with the full size wing; turns on a dime. Im very happy, cant wait for the winds to set down a bit..
Old Oct 22, 2008, 09:53 PM
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Congraduation on your maiden. It's a nice target weight at 320 g.

Find a nice calm day and try pushing the CG as far back as you could handle. In this way, you could get rid of some nose weight and she will detect thermal better .

Have fun,
Geode
Old Oct 23, 2008, 12:16 AM
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Well right now i have zero nose weight.
Old Oct 27, 2008, 03:54 AM
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request Manta printable plan~~


What a wonderful DLG plane~~!
I really want to make this model.
Could you please send me the printable plan to jcjung75@hotmail.com

best regards
Old Nov 02, 2008, 12:47 PM
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Composite Manta


Just thought it might be a "safe" ideal to try out a composite version of "thin" airfoil, "narrow" chord Manta before go on to the balsa build up version.

Triple taper planform, foam tail feathers and Rendy's Carbon/Kevlar pod ....
Old Nov 03, 2008, 02:42 PM
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Hi,
Does anyone have a good way for strengthening the wingtip for the launch blade on the Manta? I was just going to put some CF tow around the peg to the spar.
Thanks,
Ray


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