PA44Capt

Hey guys, I have a cub equipped with an OS two cylinder four stroke with an on board glow. In the pictures, you can see there is a small 'cockpit' floor that has a pilot bust on it and covers up the equipment bay in the airplane. This plate was originally held down by six small screws.

I would like to replace the screws with two small but powerful magnets to make it easier to pop that plate in and out.

One of my buddies suggested there may be some interference between the magnets and the engine/radio/on board glow. Any ideas?

I know this technique is used on electric airplanes pretty frequently but I don't know about glow...

All Day Dan

My Feedback: (5)

Captain, Keep the magnetic far away from the receiver's antenna. I can't see the antenna from the image. Is it clear of all the other wires like the servo and battery cables? Dan.

pat_willcox

You might try the small velcro "dots" for this project.(ask for "Velcro" in Walmart,etc,), The "sticky tape" backing on the velcro is not suitable for your ever day removing of the platform. First select how many spots you want to locate velcro. Next trial fit with both pieces of velcro temporarily stuck to each other and place on the fuse spots typically where the screw blocks are located. You want to be sure your "deck" does not sit too high and not look correct. 5 minute epoxy the non-barbed pieces of velcro to your fuse. Attach the "barbed pieces" of Velcro on top of what you installed in fuse. Apply 5 minute epoxy on the "sticky back" exposed portion of the various Velcro hold down locations. Put the "floor" in place and put a few suitable weights to make the floor "snug fit" in its location. Be careful and use a a small amount of epoxy.Be sure and remove any "paper backing" from the velcro prior to applying epoxy. Also you might want to do a "test" project on some scrap material to be sure you do not have "too much" holding power for the platform in your aircraft. BTW, you can fabricate your velcro from "bulk" stock as needed if you think the "dots" are too big.

BobH

My Feedback: (2)

Probably no effect at all.. I've been using magnets for several years and never had an issue. I doubt the magnet field is strong enough to influence the radio wave. Unless it was right on the receiver or ignition source.

ec121

My Feedback: (2)

Once the magnets stick to their target metal, just about all the flux field will go through the piece of metal. I doubt there will be enough outside the immediate area to worry about. Do a range check and then fly it. Or first take the magnet by itself and move it around the receiver area. Any problems ought to make the servos jitter, failsafe, etc.