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Old Jul 22, 2011, 09:48 AM
MRGTX is offline
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Quote:
Originally Posted by kuczy View Post
What about tracing paper or news print paper? Should be pretty light.

I've even thought of using the protective clear layer of Monokote. I have some so it'll be pretty cheap.
Good thinking... but I would guess that the paper would come appart if you got any moisture in there...so that's a worry.

I'm planning on using a sheet of thin lamination material...but it will still probably be heavier that monokote. I think it needs to have some strength to hold its shape...but I haven't expirimented to know how much.

Let us know how you make out with that tube.
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Old Jul 22, 2011, 09:52 AM
jj604 is offline
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ancora imparo
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Would thick Alfoil be rigid enough? Certainly light enough.

Quote:
Originally Posted by Slaanesh View Post
My thrust tube weights 2 grams! Two whole stinking grams! It's too heavy!
2 grams that far back is murder for the CoG and it's all out now.
I need some really light weight plastic .... or maybe paper is lighter? How much does paper weigh?
*grumbles*
Old Jul 22, 2011, 03:00 PM
Lekky1 is offline
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Would the clear celluloid used for windscreeens on old timers work?

I have found this clear plastic(?) packed with some shirts & even as a protective sheet over the top of chocolates in a box!

It is relatively light (in thinner sheets) and seems to be fairly stiff.

Just a suggestion.....

I have a MIG & have been following this thread very closely.

Thank you to all who have posted!

I intend to follow the advice, hits & tips in this thread when I finally get around to making mine airworthy.
Old Jul 22, 2011, 05:40 PM
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yay! My Mig-15 in super-ultra-mega-commie red has arrived from Bananahobby.. It looks great except for a bunch of warping...but that's fixable.

So they came with 3-wire servos as promised but what kind of connectors are those??

Can't wait to get flying!!
Old Jul 22, 2011, 08:40 PM
mcross is offline
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For Sale-everything over 250 g
Much better
Old Jul 23, 2011, 01:52 AM
Slaanesh is offline
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Not enough hours in the day
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One thing about thrust tube is that they become rigid once they are in the cone shape. Something that feels flimsy as a flat sheet will become much firmer once it's mounted and made into the tube.
I used some ultra light transparency sheet but it's too heavy.
To compensate for the extra tail weight I just went back to my 2S 420mah battery - so of course the extra oomph from this probably gave me a boost as it's definitely faster.
So I can't really give an objective verdict on what difference the thrust tube made.

I have ordered some 3S batteries from aircraft-world. I'm quite happy with Hyperion batteries - they seem to do a great job.
Old Jul 23, 2011, 08:28 AM
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Quote:
Originally Posted by Slaanesh View Post
... of course the extra oomph from this (thrust tube) probably gave me a boost as it's definitely faster.
So I can't really give an objective verdict on what difference the thrust tube made.
Huh?

Gene K
Old Jul 23, 2011, 02:06 PM
miketre is offline
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Mike
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I hope Jpower releases new modern jets in this series. I'm crossing my fingers for an F-15, F-16 or F-18.
I'm not a fan of retro jets, although I have flown my F-86 a lot.
It needs some company hanging on the wall, and the Mig is not going to be it
Old Jul 23, 2011, 02:46 PM
Richard Cox is offline
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Richard Cox
Second the vote for the F/A-18.
Old Jul 23, 2011, 02:52 PM
kuczy is offline
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The Earth got in the way!
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I want a F-4 in either the 35 or 50mm!!!
Old Jul 23, 2011, 06:43 PM
corsair nut is online now
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fly like an EAGLE ;)
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hey mcross..is that brets pylon edf back there??? lucky!
Old Jul 23, 2011, 07:11 PM
Strike3 is offline
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I don't want to land yet!
Well here is a video containing 3 Migs, hard to see and even harder to fly in formation

Micro Mig15 x 3 (4 min 13 sec)
http://vimeo.com/m/#/26795623
Old Jul 23, 2011, 07:24 PM
NitroCharged is offline
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Team30 Micro EDF
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Micro Mig15 x 3 (4 min 13 sec)
Old Jul 23, 2011, 07:37 PM
Napoleon IV is offline
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Emperor of Speed!
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Quote:
Originally Posted by MRGTX View Post
yay! My Mig-15 in super-ultra-mega-commie red has arrived from Bananahobby.. It looks great except for a bunch of warping...but that's fixable.

So they came with 3-wire servos as promised but what kind of connectors are those??

Can't wait to get flying!!
Some sort of micro JST connector. The good news is that you can pop the contacts out of the plug and push them into the very slightly bigger plug of the type fitted to the Blue Arrow 2.5gm servos. This will then fit the Spektrum AR6300 or similar.
Had several fights today with both the Mig and the Sabre. Managed to break the Migs wing tip just outboard of the aileron servo. However 30 seconds with some cyano had it airworthy again. I've abandoned my Flightpower 2s
300mahs. I tried a Zippy 2s 350 which gave a noticeable improvement in speed and then tried a Rhino 3s 360 in the Sabre which made it fly - well like a jet! I think the extra 10gms up front helped with the balance and so far so good with the ESC.
Old Jul 23, 2011, 08:51 PM
Odysis is offline
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Life begins at transition
yeah, I don't know how you guys are flying this thing on 2s!

I'm running 4s on the stock motor/fan. It cruises at around 1/3 throttle, and has heaps of thrust on tap if you wish


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