Mystic (new for 2010)
06-06-2010, 09:44 PM
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RE: Mystic (new for 2010)
Thanks Bill, Ryan, and Alejandro, I appreciate your comments. Pics of it setting together, got the main gear and tail wheel assembly done as well as building the rudder. Next is to cut the elevators and ailerons loose.
Todd
Todd
06-07-2010, 09:38 AM
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RE: Mystic (new for 2010)
Ditto Todd....that bird looks like it will do a nice job. Yes, we missed you in Tulsa....3 pretty Defiant II's there....the E-version seems to do great. I have finally got back to working on mine about 3 weeks ago, but time is way too limited, but I've sworn off anything but necessary maintenance until its done...what a shame to have that on the bench for so long...really sorry about that....you still owe me the butt-kicking. Good to see you doing good work, please cc me if you think about it on the pics you send. My emial address for you does not work. Can you send a test to me at chris***d.fsi.com?
Take care....
Take care....
07-31-2010, 06:07 AM
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RE: Mystic (new for 2010)
Getting finish up, still have to cover the wings, stab, and rudder. The rudder servo tray and back hoop are 1/8 balsa laminated in carbon fiber which maKe very light and stiff plates. The mid former is light ply and the tray for the reciever and battery is 1/8 glassed balsa. Probably should have made the mid former out of balsa like the rest to save weight, but the ball links that the wings attach to are located on it. The crutch and all rear formers are made of 1/8" white foam laminated with 1/32 balsa. The complete interior structure of the fuse added 8oz.
Todd
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07-31-2010, 06:11 AM
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RE: Mystic (new for 2010)
All color and clear are on the fuse. Still have to sand and polish the clear. My goal is to have the plane ready to fly by August 14th and hopefully be able to take it to St Louis contest at the end of August.
Todd
Todd
08-01-2010, 10:09 PM
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RE: Mystic (new for 2010)
Thanks Highfly3D, Skywalker, Chris and Renegade. I'm glad you like the design and color scheme. Your comments help keep me motivated on this project.
Chris, the fuse including canopy and chin out of the mold was 31oz. The complete interior structure added 8oz so all fuse parts combined ready to paint weighed 39oz. I still have to sand the clear which will take some weight off. The paint and clear added 7oz which is more than I wanted, but there is quite of bit of clear that will come off. Making a glow version would only take making a new chin cowl, very easy to do, just need to find the time.
Renegade, I'm not sure if "official" kitting will be done. I imagine I will make some in the future, but how many I'm not sure. First thing is to get this proto in the air to see how she does. You never know, it might be a turd and even I won't want another one.
Thanks again everyone for your interest, I'll keep you posted on the progress!
Todd
Chris, the fuse including canopy and chin out of the mold was 31oz. The complete interior structure added 8oz so all fuse parts combined ready to paint weighed 39oz. I still have to sand the clear which will take some weight off. The paint and clear added 7oz which is more than I wanted, but there is quite of bit of clear that will come off. Making a glow version would only take making a new chin cowl, very easy to do, just need to find the time.
Renegade, I'm not sure if "official" kitting will be done. I imagine I will make some in the future, but how many I'm not sure. First thing is to get this proto in the air to see how she does. You never know, it might be a turd and even I won't want another one.
Thanks again everyone for your interest, I'll keep you posted on the progress!
Todd
08-02-2010, 10:04 AM
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RE: Mystic (new for 2010)
Thanks Jeff and Chris, I'm glad you like it.
Jeff, the fuselage is a balsa laminate. First layer is 2oz cloth from nose ring to tail post, then 5.7 carbon in the nose just past the chin cowl followed by 1/32nd balsa core. Last is 1.4oz cloth over the balsa. Its really important to seal the balsa as it can soak to much resin and leave weave print on the outside surface of the fuselage. Hope this helps!
Chris, hopefully you'll get to fly it in Tulsa in September
Todd
Jeff, the fuselage is a balsa laminate. First layer is 2oz cloth from nose ring to tail post, then 5.7 carbon in the nose just past the chin cowl followed by 1/32nd balsa core. Last is 1.4oz cloth over the balsa. Its really important to seal the balsa as it can soak to much resin and leave weave print on the outside surface of the fuselage. Hope this helps!
Chris, hopefully you'll get to fly it in Tulsa in September
Todd
08-02-2010, 01:35 PM
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RE: Mystic (new for 2010)
an idea for the fuse lamination....
use something like 1/4" balsa triangle and create a sort of "Truss" with the balsa stock... of course it would be within the glass plies of the fuse lamination....
might need an occasional element across the bottom or the top of the fuse....
additionally.. with the balsa sheeting for core... even that can be skeleton'ized... prolly remove 50% of the core and retain good torsional stiffness and skin stability....
the only significant issue would be prime and paint as the regions with no core might make sanding a nice surface more difficult.....
use something like 1/4" balsa triangle and create a sort of "Truss" with the balsa stock... of course it would be within the glass plies of the fuse lamination....
might need an occasional element across the bottom or the top of the fuse....
additionally.. with the balsa sheeting for core... even that can be skeleton'ized... prolly remove 50% of the core and retain good torsional stiffness and skin stability....
the only significant issue would be prime and paint as the regions with no core might make sanding a nice surface more difficult.....
08-05-2010, 08:38 PM
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RE: Mystic (new for 2010)
Finished covering the wings. One panel weighs 315 grams (11.1oz) the other 310grams (11.0oz)
Also my shop buddies which help by dropping toys at my feet while I'm trying to build. (Calie the cat, Uscha is the young G.S. and my old buddy Rufus, he's a real good boy!)
Also my shop buddies which help by dropping toys at my feet while I'm trying to build. (Calie the cat, Uscha is the young G.S. and my old buddy Rufus, he's a real good boy!)
08-05-2010, 08:58 PM
#43
RE: Mystic (new for 2010)
What goes in to designing the shape of a plane like this? Do you use any digital tools to analyze flows, or just build it from empirical data?
It really is an awesome looking plane. Looks like it could pierce through just about anything...
It really is an awesome looking plane. Looks like it could pierce through just about anything...
08-06-2010, 08:35 AM
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RE: Mystic (new for 2010)
Hi Joe,
My methods are pretty low tech. Starts out with a scetch, then scaled up drawing by hand. Formers and such were drawn on model cad for the plug building. I study several planes to get an idea of current trends in design. This is my 5th design so from past experiences I try to make improvements. It's all a evolutionary process really.
I wish I knew CAD like Mark Hunt and Alex V. It would make things a lot easier!
Todd
My methods are pretty low tech. Starts out with a scetch, then scaled up drawing by hand. Formers and such were drawn on model cad for the plug building. I study several planes to get an idea of current trends in design. This is my 5th design so from past experiences I try to make improvements. It's all a evolutionary process really.
I wish I knew CAD like Mark Hunt and Alex V. It would make things a lot easier!
Todd
08-15-2010, 09:07 PM
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RE: Mystic (new for 2010)
I want to give special thanks to Joe Dunnaway for helping me get the Mystic in air. My goal was to maiden this weekend and I wouldn't have made it without his help. I still have to paint the wheel pants and ad grafics but its finally flying. Saturday the temps were around 100 degrees with strong winds at our back. We managed to put 3 flights in Saturday and 4 on Sunday. This is my first electric and I think I'm really going to like it. The plane snaps really nice even though I need more aileron throw. So far no mixing for knife edge but there may be a very slight pull to the belly which can be adjusted by moving the CG with the batteries. Down lines pull to the canopy a little but that can be adjusted out. After I get more time on the plane I'll give a better flight report, but so far so good.
Todd
Todd
08-16-2010, 05:18 AM
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RE: Mystic (new for 2010)
That has to be the prettiest new pattern model I've seen in the last few years.
If it was commercially avalible I would be putting in an order straight away, you nailed the nose section, unique!
If it was commercially avalible I would be putting in an order straight away, you nailed the nose section, unique!