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Old Nov 16, 2014, 10:00 PM
Registered User
Canada, ON, Mississauga
Joined Oct 2011
625 Posts
Quote:
Originally Posted by scole View Post
I have a broken aileron hinge, how do I fix it?
Someone recommended this hinge fix. I did it on my Carbon Cub and it works well and has lasted all summer and fall:
1) Cut 2 clear tape pieces about 1/2" long by 3/16" wide.
2) Join together their sticky sides 1/8" from each end. One half of the resulting tape piece is sticky on the bottom and the other half of this tape piece is sticky on the top with 1/8" in the middle that is not sticky.
3) One sticky end goes on the top of the wing and the other sticky end goes on the bottom of the aileron. Leave no gap between the wing and the aileron.
4) Repeat beside this hinge but the opposite so that one tape piece is on top of the wing and on the bottom of the aileron and the other tape piece is beside it and is on the bottom of the wing and on the top of the aileron.
5) Repeat for each hinge.
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Old Nov 17, 2014, 12:01 PM
when down=up, up=expensive
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United States, VA, Roanoke
Joined Apr 2012
2,925 Posts
Quote:
Originally Posted by Audioguru View Post
Someone recommended this hinge fix. I did it on my Carbon Cub and it works well and has lasted all summer and fall:
1) Cut 2 clear tape pieces about 1/2" long by 3/16" wide.
2) Join together their sticky sides 1/8" from each end. One half of the resulting tape piece is sticky on the bottom and the other half of this tape piece is sticky on the top with 1/8" in the middle that is not sticky.
3) One sticky end goes on the top of the wing and the other sticky end goes on the bottom of the aileron. Leave no gap between the wing and the aileron.
4) Repeat beside this hinge but the opposite so that one tape piece is on top of the wing and on the bottom of the aileron and the other tape piece is beside it and is on the bottom of the wing and on the top of the aileron.
5) Repeat for each hinge.
Brilliant
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Old Today, 03:32 AM
I am GBLynden
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United States, WA, Lynden
Joined Mar 2011
3,057 Posts
With the rainy weather expected for the next few days, I decided to edit some video tonight of the fun I had with my UMX Pitts this past Sunday.

Here is a short video of me landing on video for the very first time on pavement with that plane. I have landed many times on pavement off camera, but this is the first flight on camera:
First Pavement Landing with My E-Flite UMX Pitts S-1S BNF Basic RC Plane with AS3X Technology (1 min 57 sec)
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Old Today, 07:47 AM
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United States, NC, Charlotte
Joined Jan 2007
1,201 Posts
Beautiful almost breezeless afternoon yesterday. Went to favorite soccer field around 4 and sun behind me. Great flying I love this bird!
I fly with out gear and land on grass, will have to try pavement one day.
I find this plane as much fun as Beast but much more durable.
By far my favorite park flyer.
Got cold hands quick so only a few batteries worth of flying,
Tim
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Old Today, 09:01 AM
MK
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NJ
Joined Feb 2001
1,156 Posts
Do you readjust CG if you remove the landing gear? And do you put servo covers on to protect crap from getting into those linear servos?
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Old Today, 11:43 AM
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United States, IN
Joined Aug 2012
29 Posts
They fly great love it just a small version of my byron great job guys
bill hiller
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Old Today, 11:53 AM
Gopher huntin' stick jockey
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East Bethel, MN USA
Joined Jul 2009
12,153 Posts
GB,

Nice greaser! Landings don't get much better than that!

Joel
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Old Today, 12:02 PM
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United States, NC, Charlotte
Joined Jan 2007
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Quote:
Originally Posted by MK View Post
Do you readjust CG if you remove the landing gear? And do you put servo covers on to protect crap from getting into those linear servos?
I do not change cg just run A 250Ma battery as far forward as I can get.
I use servo covers from carbon cub on all my umx with exposed servos.
Tim
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Old Today, 01:15 PM
Canadian Bacon
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Kingston, Canada
Joined Jun 2004
13,047 Posts
I keep the clear plastic covers that pens and like kind of hardware comes in. I made a pair for the ail servos on the Beast They're about a 1/4 in. high and the pointy end faces the front of the plane. I could take a pic if you like.

Gord.
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Old Today, 01:31 PM
I am GBLynden
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United States, WA, Lynden
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Quote:
Originally Posted by turboparker View Post
GB,

Nice greaser! Landings don't get much better than that!

Joel
Thank you Joel!
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Old Today, 02:26 PM
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Canada, ON, Mississauga
Joined Oct 2011
625 Posts
The motor makes the normal buzzing sound but it also makes a medium pitched whistle. I think the whistle is the 1800Hz carrier of the Pulse-Width-Modulation that controls the motor's speed. I wonder why Spektrum uses such a low frequency?

Have you ever heard a wheelchair or Tesla car motor whistling? No, because they use a much higher inaudible ultrasonic PWM frequency.

Has anybody tried changing the programming for the ESC for more power or more efficiency?
Changing the PWM frequency? The manual for the brick says the PWM frequency is 8kHz by default and can be 16k or 32k. But it sounds like 1.8kHz to me.
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Old Today, 03:05 PM
Gopher huntin' stick jockey
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East Bethel, MN USA
Joined Jul 2009
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Quote:
Originally Posted by Audioguru View Post
......The manual for the brick says the PWM frequency is 8kHz by default and can be 16k or 32k. But it sounds like 1.8kHz to me.
Given that the ESC is incapable of operating at a PWM frequency of 1.8 kHz, the logical & rational conclusion is that your ears are deceiving you. The odds of that being the case are overwhelmingly greater than anything else.

Joel
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