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Old Jul 26, 2011, 12:29 PM
The new guy
Londonderry, NH
Joined Oct 2010
528 Posts
Good idea on hot glue. I reinforce with epoxy before installing then I use CA only on the little slot at the bottom of the mount to glue it to the frame. That way you can shave the mount and glue off in one stroke.
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Old Jul 26, 2011, 12:30 PM
I used to like trees
rchank's Avatar
United States, WA, Spokane
Joined Jul 2011
288 Posts
Quote:
Originally Posted by alpinesandtoys View Post
Thanks for the heads up on twisting the stock props! Now I have a ton of spare props cause I kept buying new ones that sucked..was heating them up to try and put more pitch into them and ruining them. Didn't realize all you had to do was twist them. No more uncontrolled dives for me! With the J-3 motor it'll go as high as I want....was up higher but brought it down so I could see it on my iphone....lol!

http://www.youtube.com/watch?v=PAwk4H6IaxM
I found out you can over pitch the prop too. I twisted a bit too far a few nights ago and the plane was flying sluggishly with what sounded like abnormally low r.p.m.s I landed it, checked the little motor and man was it ever HOT! I then backed off on the pitch and all was back to normal.
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Old Jul 26, 2011, 03:56 PM
The new guy
Londonderry, NH
Joined Oct 2010
528 Posts
Does the pitch stay once you've re-pitch'd the prop? Maybe I'm not twisting enough but it seems I only get a minute or so of increased pitch from the prop.
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Old Jul 26, 2011, 04:55 PM
Registered User
I R Irv's Avatar
United States, IL, Washington
Joined Nov 2008
1,956 Posts
Guys these CF props aren't cheep but you don't have to re-pitch them and they'll probably be the last prop you'll have to buy. I've never broke one with the Vapor.
TODD
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Old Jul 26, 2011, 05:03 PM
In the 20' glider range
anti-gravity's Avatar
Boise, Idaho
Joined Jul 2009
4,503 Posts
Link to the prop and adapter?
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Old Jul 26, 2011, 05:33 PM
I used to like trees
rchank's Avatar
United States, WA, Spokane
Joined Jul 2011
288 Posts
Quote:
Originally Posted by Chris_F View Post
Does the pitch stay once you've re-pitch'd the prop? Maybe I'm not twisting enough but it seems I only get a minute or so of increased pitch from the prop.
I found that I had to give it a little "tune-up" twist for a few days. It seems like it wants to return to its original pitch.
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Old Jul 26, 2011, 06:33 PM
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I R Irv's Avatar
United States, IL, Washington
Joined Nov 2008
1,956 Posts
Quote:
Originally Posted by anti-gravity View Post
Link to the prop and adapter?
He's out of the props but they are the Micro Invent 5030 prop, here's the adapter you need.
TODD
http://bsdmicrorc.com/index.php?productID=926
http://bsdmicrorc.com/index.php?productID=946
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Last edited by I R Irv; Oct 01, 2012 at 09:42 PM.
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Old Jul 26, 2011, 09:38 PM
In the 20' glider range
anti-gravity's Avatar
Boise, Idaho
Joined Jul 2009
4,503 Posts
Thanks
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Old Jul 27, 2011, 02:29 AM
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alpinesandtoys's Avatar
Joined May 2011
62 Posts
Do you have the uncontrolled dive problems with that prop? I've been testing aftermarket props on the vapor and the all have this issue except the stock prop
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Old Jul 27, 2011, 06:03 AM
ARFs Are Me
TomCrump's Avatar
Traverse City, Michigan
Joined Dec 2005
11,914 Posts
I've had the dive issue with the stock prop.
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Old Jul 27, 2011, 07:08 AM
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I R Irv's Avatar
United States, IL, Washington
Joined Nov 2008
1,956 Posts
The dive issue is caused by the airframe itself not the prop.
TODD
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Old Jul 27, 2011, 11:50 AM
Registered User
United States, KY, Madisonville
Joined Mar 2011
550 Posts
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Old Jul 27, 2011, 12:39 PM
The new guy
Londonderry, NH
Joined Oct 2010
528 Posts
Quote:
Originally Posted by I R Irv View Post
The dive issue is caused by the airframe itself not the prop.
TODD
I suspect the elevator itself is actually flexing. But that's just a wild guess.
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Old Jul 27, 2011, 05:14 PM
Good Times!
Micro Budget's Avatar
Joined Feb 2011
249 Posts
pull the cabanes apart that connect the front and back of the wing. just give them a little tug away from each other like you're stretching the wing from front to back. seems to help me a lot when trying different props on the vapor
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Old Jul 30, 2011, 10:47 AM
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I R Irv's Avatar
United States, IL, Washington
Joined Nov 2008
1,956 Posts
Quote:
Originally Posted by Chris_F View Post
I suspect the elevator itself is actually flexing. But that's just a wild guess.
Your correct here's the mod I did to stop the diving problem. This Vapor has a ball bearing gearbox, J3 Cub motor, 5030 carbon fiber prop and a Hyperion 70 cell. This combo puts out a ton of thrust and I can run it full throttle. At full throttle it will pull up and to the right with no stick input. Big loops and big circles are easy now at full throttle,also modded to do tight loops and turns. To me this is the ultimate 3-CH plane and I'll never go back to a stock one.
TODD
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