Have a HAN( J# Supercub that has a clear cover with 4 smal screws and a HAN9 ARF 40 that has a clear cover and balsa outline. with 4 small screw. Any products or ideas on securing these hatches but easy to get in and out. One is electrified and have to get to batteries and both to set up wing and dassembly wing. Clear tape is not good because of the curve and pressure on tape
HELP
Bill

Dubro has just released a hatch release that might work. Check'em out.

Another option - and one I'm planning to use for a hatch covering various switches, air valves, etc. on a seaplane [104" PBN Nomad] I'm building - is to hinge one side and use two of the small 'super magnets' to hold the hatch closed.

Take a look at the post titled 'super magnets' for some places to get these magnets. I got some of the 1/16" thick ring-type 3/16" OD and 1/16 ID (got the ring type to allow greater surface area for gluing) magnets and have used Gorilla glue to attach the magnets to the two surfaces. Make sure that when you fabricate this that the magnets are touching when the hatch is closed for greatest holding power.

Here's a link to the magnets that I bought http://www.kjmagnetics.com/products.asp?cat=16 Their service and delivery was perfect.

My question concerning those doors held shut with magnets is: How do you open 'em? Scale handle?

Your fingernail in the seam will open the hatch (or a scale handle )

When a seam is really tight, I use a single edge razor blade that has the sharp edge ground off and rounded over. I keep one in my field box.