Where are all the pure glider pilots - seems all the posts are for electric
11-17-2014, 01:26 PM
#54
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Pure sailplane, self launch with EDF Jet, self launch propellor, all three options?
This is my latest design, ready for molding. Fuselage is about five feet long and the wingspan will be twelve feet.
It will be made completely from carbon, Rohacell and Kevlar.
A little more than two years to this point.
I am am using the wing molds from my other scratch built project I did many years ago.
It will be made completely from carbon, Rohacell and Kevlar.
A little more than two years to this point.
I am am using the wing molds from my other scratch built project I did many years ago.
Last edited by sierratango; 11-17-2014 at 02:42 PM.
11-17-2014, 02:09 PM
#55
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A few more photos
I am pretty excited about this project and have worked really hard to make sure that the fuselage was straight, comfirming with the use of a laser and now confirmed again with the parting plain.
It is really cool.
It is really cool.
11-25-2014, 03:39 PM
#58
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Sorry Gents, I have been offline for a bit working.
it is simply a design I dreamt up, sketched it on the dining room table on butcher paper and then dreamt it in three dimensions.
Then I set out to make it happen.
It will have a twelve foot wingspan using the wings from my previous Grob 103 Twin III project. It has a Helmet Quabeck 3/12 airfoil at the root and a 3/15 airfoil at the tip. It is a triple taper wing, fully molded also.
The project is more about aesthetics and less about task, but I am sure it will be a great sloper, or thermal ship. I ordered a lot of 1.9oz carbon cloth and carbon/Kevlar cloth from Germany to make the parts once the molds are complete. I plan to leave it un painted in a challenge to making the cleanest looking molding possible.
Thanks for for the interest. Here are a few more photos.
it is simply a design I dreamt up, sketched it on the dining room table on butcher paper and then dreamt it in three dimensions.
Then I set out to make it happen.
It will have a twelve foot wingspan using the wings from my previous Grob 103 Twin III project. It has a Helmet Quabeck 3/12 airfoil at the root and a 3/15 airfoil at the tip. It is a triple taper wing, fully molded also.
The project is more about aesthetics and less about task, but I am sure it will be a great sloper, or thermal ship. I ordered a lot of 1.9oz carbon cloth and carbon/Kevlar cloth from Germany to make the parts once the molds are complete. I plan to leave it un painted in a challenge to making the cleanest looking molding possible.
Thanks for for the interest. Here are a few more photos.
11-25-2014, 03:52 PM
#59
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A few more photos
Images are of the urethane canopy mold, the molding of the wings(from years ago), location of spoiler and jig, and the space of the wings on the Grob project.
Last edited by sierratango; 11-25-2014 at 05:34 PM.
11-26-2014, 06:35 AM
#61
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Molding the fuselage
Here are the steps in photos showing the process of molding the fuselage. I only got half of the fuselage molded last weekend.
1) the fuselage in the parting plain, waxed and PVA'd
2) surface coat application...two different types, the one on the parting plain is super tough to resist blade cutting the semi cured part, the other more thixotropic material in white for better hang time on vertical surfaces. Also the white color will be useful when laying up the carbon for the actual fuselage part.
3) first layers of fiberglass lamination, finished with peel ply and left to cure
4) application of tooling dough, and then more layers of fiberglass over that and then peel ply again.
5) mold structural reinforcement to keep the mold/tool straight and warp free.
I spent tremendous time assuring this project would be straight. From laying up of the original balsa fiberglass spline and vacuuming it down onto a granite machine shop table, to the use of a laser and jig to straighten the tail boom while fiberglassing the fuselage plug, every step was used to ensure the fuselage and vertical stabilizer were going straight.
The results are seen when the plug is laid into the parting plain, which was also made on the granite table, and the line bisecting the nose is the same line that divides the entire length of the fuse and the leading edge of the VS and top of it.
Thanks for the nice comments. This is fun stuff! Lots of work, but fun!
Happy Thanksgiving.
1) the fuselage in the parting plain, waxed and PVA'd
2) surface coat application...two different types, the one on the parting plain is super tough to resist blade cutting the semi cured part, the other more thixotropic material in white for better hang time on vertical surfaces. Also the white color will be useful when laying up the carbon for the actual fuselage part.
3) first layers of fiberglass lamination, finished with peel ply and left to cure
4) application of tooling dough, and then more layers of fiberglass over that and then peel ply again.
5) mold structural reinforcement to keep the mold/tool straight and warp free.
I spent tremendous time assuring this project would be straight. From laying up of the original balsa fiberglass spline and vacuuming it down onto a granite machine shop table, to the use of a laser and jig to straighten the tail boom while fiberglassing the fuselage plug, every step was used to ensure the fuselage and vertical stabilizer were going straight.
The results are seen when the plug is laid into the parting plain, which was also made on the granite table, and the line bisecting the nose is the same line that divides the entire length of the fuse and the leading edge of the VS and top of it.
Thanks for the nice comments. This is fun stuff! Lots of work, but fun!
Happy Thanksgiving.
11-26-2014, 04:19 PM
#63
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Thanks for the links, I'm beginning to believe I'll never catchup with all these innovations the hobby seems to be like electronics you're always behind even worse if you take a couple month off. I just found out all the neat things a smart phone can do for the hobby, they are a modern swiss knife.
Happy Thanksgiving,
Ed
Happy Thanksgiving,
Ed
11-26-2014, 04:59 PM
#64
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That's quite something.
Although no in LA, I spent about 1/2 century there.
Being into scale I hope you do the Visaiia thing.
Also, LA is a large place yet there are may clubs within SC2, as I am confident that you know.
Jared
Although no in LA, I spent about 1/2 century there.
Being into scale I hope you do the Visaiia thing.
Also, LA is a large place yet there are may clubs within SC2, as I am confident that you know.
Jared
11-26-2014, 08:02 PM
#65
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I have been to Visalia once.
What I would like to do once I stop building is bring my models to Los Banos and do some slope soaring and perhaps aero tow.
I just need to stop building things and make time to enjoy the fruits of my labor. The only RC soaring I have been doing is from the deck of my house when the wind is right, which happens only once in a while.
I have tried to ask people in the South Bay Soaring Society when the best wind months for Los Banos are, but have never received a reply.
The rods on the mold obviously help with mold flex and torsion, but hate to say, I think the mold is still going to be really heavy.
Happy Thanksgiving....the best holiday, the one without all the stressful shopping or the guilt of not doing the shopping.
What I would like to do once I stop building is bring my models to Los Banos and do some slope soaring and perhaps aero tow.
I just need to stop building things and make time to enjoy the fruits of my labor. The only RC soaring I have been doing is from the deck of my house when the wind is right, which happens only once in a while.
I have tried to ask people in the South Bay Soaring Society when the best wind months for Los Banos are, but have never received a reply.
The rods on the mold obviously help with mold flex and torsion, but hate to say, I think the mold is still going to be really heavy.
Happy Thanksgiving....the best holiday, the one without all the stressful shopping or the guilt of not doing the shopping.
12-01-2014, 05:28 PM
#66
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I thought finding a decent glider club would be a piece of cake. Just ain't so. The club dis-banded several years ago but in all fairness, it really wasn't just the clubs fault. A perfect storm of heat, drought and development pretty much spelled the end for it.
Personally, I prefer pure gliders. But, at this point, I'd be happy if 10-12 people would just commit to making the club viable again.
12-01-2014, 05:41 PM
#67
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Sound like you are in me old homeland of the southwest.
Can't fine, then start up. Yet, could spend more time with labor then the joy of flying.
Jared
In-Pure pilot
Can't fine, then start up. Yet, could spend more time with labor then the joy of flying.
Jared
In-Pure pilot
12-22-2014, 08:11 PM
#71
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