Dynam Skybus DC-3 - Page 78 - RC Groups
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Dec 25, 2010, 12:53 PM
Oops - That's gonna hurt!
harryg69's Avatar
Originally Posted by btflycrazy
anyone have a idea on making motor cowling instead of buying new ones
A neat trick for making cowlings is to make an inside mold out of wood. Then find a small, plastic, pop or juice bottle which will fit over the mold without being too loose. Use a heat gun to shrink the bottle to the mold making sure the hole in the top of the bottle is in the area that will be cut away for the front opening of the cowl. Also extend your wood mold a little longer than the needed cowl so you have some room for cutting error while initially removing it from the mold. Before placing the plastic on the wood mold apply talc powder to the wood for easier removal. When making the mold you may want to leave an extra stub of wood at the back for mounting upright in a vise and also putting a wood dowel out the front for centering the bottle. be sure the mold sides are straight or tapered toward the front a little or you will never get the plastic off . Scuff the plastic once you have cut it to size to hold paint better then paint away and glue or screw in place! You have free cowls and the ability to quickly make replacements if needed

I cannot take credit for this technique as i saw it somewhere on a build video - don't remember where I've watched soooo many
Also test the pop or juice bottles first to see how much shrink you can get out of them - the trick may be in finding the right size bottle to start with.

I found this: http://flyin.tripod.com/Soda_Bottle_Cowl.htm
It is not the one I originally saw but gives you the idea. Also just search google for "Make a cowl from a pop bottle". You will get a few helpful results.

Merry Christmas!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!
Last edited by harryg69; Dec 25, 2010 at 01:02 PM.
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Dec 25, 2010, 03:55 PM
Registered User
Merry Christmas to all.
Dec 25, 2010, 08:56 PM
Grounded Pilot
IIIBonesAirForce's Avatar
Merry Christmas..Got mine and I am ready to spend some nights getting it ready...for Spring that is...I am thinking about glassing it with Water Based Poly..Thanks all for a very informative thread on this DC3 bird...
Dec 27, 2010, 07:45 PM
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btflycrazy's Avatar
so did anyone order the new c 47 from nitroplane.com yet, i was thinking about it but no parts on hand yet and i might get the 4 to 6 week run around
Dec 28, 2010, 03:06 PM
Registered User
btflycrazy's Avatar
wired up lights on the good old skybus not the best but for 6 dollars it beats buying them online for more
Dec 28, 2010, 03:12 PM
define("BEASTMODE", "1");
Bonafidepirate's Avatar
Looks good! I've got some lights here that need a home, I thought about putting them on the Skybus. They've only got one red solid, one green solid, and one blinking clear LED. Better than nothing though!
Dec 28, 2010, 03:54 PM
Registered User
btflycrazy's Avatar
it is really easy to put those on your dc3 just follow the edge of the carbon fiber strips on the wings and solder in a 200 resister so you can use your planes battery and to cover it all up use white electrical tape
Dec 29, 2010, 12:08 AM
Registered User

Dynam Skybus Split Flaps Mod

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So as i mention earlier a couple pages back, i was planning on doing a split flap modification to my dc-3 and so by managing to pull off an "all-nighter", i started at about 8pm and finished the mod at about 4am . But it was all worth it, the split flaps came out very good; heres my video on it.

Dynam Skybus(DC-3) Split Flaps Modification (5 min 40 sec)
Dec 29, 2010, 12:17 AM
Registered User
Originally Posted by btflycrazy
wired up lights on the good old skybus not the best but for 6 dollars it beats buying them online for more

Those lights look GREAT! Which ones are you using?
Dec 29, 2010, 12:21 AM
Registered User
Like those flaps! Nice job. Looking forward to seeing your video, but better hurry up....it's supposed to rain again tomorrow. :-)
Dec 29, 2010, 12:53 AM
Registered User
I finally maidened mine today!!!!!
Last edited by pilot40874; Dec 29, 2010 at 01:04 AM.
Dec 29, 2010, 12:58 AM
Registered User
It's been raining for a week, but today was perfect. The field was pretty busy with everybody itching to go flying again, so I wasn't up long. but I did shoot some video:

Preflight.avi (1 min 7 sec)

Taxi and Takeoff.avi (2 min 50 sec)

THE LOW APPROACH (actually it was a missed approach!):
Low Pass.avi (0 min 28 sec)

THE LANDING (yeah, I know....it was ugly!):
Landing.avi (0 min 32 sec)

Post Flight.avi (0 min 44 sec)
Dec 29, 2010, 07:34 AM
Dunetop Flyer
jcarstan's Avatar
Has anybody replaced the shaft on the stock motor? Broke one yesterday. I read here it's a 3mm shaft. Any sources or do I have to replace the motor?
Grayson Hobby says the Grand Cruiser motor is not the same as the Skybus - higher KV. Or, am I doomed to buy two motors because I broke one shaft when the plane's wing flew off the workbench ? Been looking forward to my first flight after reading this thread for some time now.
Dec 29, 2010, 08:16 AM
Registered User
I believe both the Crusier and Skybus use the same motor. I have both planes. The parts list in both manuals lists motors for both planes with the same part number: DYM-0010. The 3300 KV rating printed on the box of the Crusier is clearly not correct. There's no way a motor with that rating could work with props of 8-9 inches.

I also have the Dynam SR Trainer which, again, uses the same motor.

I'm not sure but it appears that this is the same motor also, with a prop saver installed on the shaft:


I've got one on the way along with other items. I'll let you know if it's the same when it arrives in a couple of days.
Dec 29, 2010, 08:39 AM
Dunetop Flyer
jcarstan's Avatar
dbc - Thanks for the info. The HobbyPartz motor looks the same except for the color of the wires. Has the threaded shaft I need. Please let me know if it's the same or not.

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