Re: KR> Wing Leveler

2018-09-23 Thread AndyL via KRnet
Having been one to throw crazy ideal in rc planes before they were possible to buy... I do know a thing or two about it. EM radiation - simple - mags kick off this neat effect that can screw up nearby electronics. So do radios etc. So using something homebuilt in electronics - can introduce this l

KR> Wing Leveler

2018-09-23 Thread Mike Stirewalt via KRnet
I've no idea what EM radiation or PPM signals or "turning over control to . . ." has to do with it. It's a simple device designed to keep the nose from wandering and has nothing to do with trim tabs on elevators or, for that matter, on the wing. A simple direct wired 12 volt gyro & servo with a s

Re: KR> Wing leveler

2018-09-23 Thread Jeff York via KRnet
Dan, Very nice story. Like a chapter in a book. Jeff York On Sun, Sep 23, 2018, 6:30 AM Daniel Heath via KRnet wrote: > Using my newly acquired wing leveler to visit an old friend, Bob Lee. A > poignant memory from a long time ago. > > > > http://krbuilder.org/Adventures/index.html > > > > >

KR> Wing leveler

2018-09-23 Thread Daniel Heath via KRnet
Using my newly acquired wing leveler to visit an old friend, Bob Lee. A poignant memory from a long time ago. http://krbuilder.org/Adventures/index.html See N64KR at http://KRBuilder.org - Then click on the pics KRGathering 2019/ KMVN/ Sept 26-28 People

KR> Wing Leveler

2018-09-22 Thread Oscar Zuniga via KRnet
IIRC, elevator trim tab flutter was what led to the crash of Jimmy Leeward's P-51 "Galloping Ghost" at the 2011 Reno air races. Leeward was killed along with 10 people on the ground, and another 69 people were injured. I have no idea how the P-51's trim tab was actuated. Oscar Zuniga Medfor

Re: KR> Wing Leveler

2018-09-22 Thread AndyL via KRnet
Giving an unproven device with unknown ability to reject EM radiation etc direct access to a control surface seems like a terrible idea. Add a stick trim control - let it control that, so you're always 100% guaranteed you can override it. As it's acting against the centering of your stick not the

Re: KR> Wing Leveler

2018-09-22 Thread Craig Williams via KRnet
The feedback so far is great and has me thinking that a geared motor running a fine threaded rod to a captive nut on the tab should eliminate the need for a servo lock. The PWM signal from the gyro is easily converted to a motor drive signal. Next question is what RPM the motor should be. Seems

KR> Wing Leveler

2018-09-22 Thread Mike Stirewalt via KRnet
Craig said, "The question is will a small tab on one aileron be enough to control?" Since we can steer our planes by leaning our heads from side to side, I would guess your idea would work fine. Instead of cutting into your aileron to install a tab, could you connect the gyro you mention to a s

Re: KR> Wing Leveler

2018-09-22 Thread Jeff Scott via KRnet
em BECAUSE is locks up when stopped.   -Jeff Scott     Sent: Saturday, September 22, 2018 at 7:14 AM From: "Rob Schmitt via KRnet" To: "Craig Williams" , KRnet Cc: "Rob Schmitt" Subject: Re: KR> Wing Leveler Craig, I tried to use a RC servo for my KR elevator tr

Re: KR> Wing Leveler

2018-09-22 Thread Rob Schmitt via KRnet
Craig, I tried to use a RC servo for my KR elevator trim. The DAR would not accept it. His issue was that if the servo lost power it didn’t have a lock up mode unpowered. The possible result was flutter in the trim tab. I had to remove it. Worth checking before you go that route. Thanks, Rob

KR> Wing Leveler

2018-09-21 Thread Craig Williams via KRnet
I've been racking my brain since the autopilot discussion and I finally came across something that may work but I need to install it and try first. It's actually a single axis gyro for stabilizing RC helicopters in yaw. Once engaged it will output an immediate counter steer command to any move