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Thread: Simple Inspection Panel for Wood Construction.

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    Simple Inspection Panel for Wood Construction.

    I have used this type of inspection panel for wood construction for 3 airplanes and I like it because its simple and easy to remove with 2 machine screws. This cover is for the flap horn.

    The machine screws are 6/32 X 1/2" that screws into Blind Nuts from Tower Hobbies. 24 for about $2.50. I put a little epoxy on the lip of the blind nut before pressing into the 1/4" plywood. Drill the hole in the plywood the same dia as the od of the body of the blind nut. In the pictures you can see the steel blind nuts in the holes. Front alum lip flush riveted on the cover.

    Dan
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    Pops

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    Registered User PTAirco's Avatar
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    Re: Simple Inspection Panel for Wood Construction.

    Like it. I also put panels like that wherever struts or wires come through the wing. Can't stand to see just a ragged cut in the fabric.
    "Aeronautical engineering is highly educated guessing, worked out to five decimal places. Fred Lindsley, Airspeed."

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    Registered User Victor Bravo's Avatar
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    Re: Simple Inspection Panel for Wood Construction.

    On a wooden airplane structure, for goodness sakes then make the inspection plates out of plywood too, and cover them with fabric to match the airplane.
    "Everything in this book may be wrong."
    Richard Bach, Illusions


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    Re: Simple Inspection Panel for Wood Construction.

    Quote Originally Posted by Victor Bravo View Post
    On a wooden airplane structure, for goodness sakes then make the inspection plates out of plywood too, and cover them with fabric to match the airplane.
    Purist, Purist.
    Have also made fiberglass sheets between two pieces of flat glass and cut the inspection panels out of the fiberglass sheets. The curved baggage door for the forward baggage area on the wood SSSC is fiberglass. Also have a inspection panel of the elevator control horn made from Plexiglas so I can check it on the pre-flight inspection and my elevator. Electric trim tab is honeycomb from the B-1 Bomber. Helicopter airspeed. Tail wire from J-3 Cub wing drag and anti-drag wires, Brake cylinders for a Cessna 150. The aluminum gap seals between the wings and fuselage and the tails and fuselage is house soffit aluminum trim ( comes painted white) Lowes aviation section, aisle 10. . Seat upholstery from Army Surplus store, ( sleeping bag storage bag, $1 ). Fuel strainer on the lower firewall from a 1956 Chevy. Powered with a VW engine with intakes and exhaust SS tubes made from Lowes box store bathroom handrails.
    That is all I can think of for now.


    Dan
    Last edited by Pops; March 7th, 2016 at 09:24 PM.
    Pops

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    Re: Simple Inspection Panel for Wood Construction.

    Isn't some of the J3 drag wires #4? Kinda skinny. Obviously it works.

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    Re: Simple Inspection Panel for Wood Construction.

    Quote Originally Posted by Victor Bravo View Post
    On a wooden airplane structure, for goodness sakes then make the inspection plates out of plywood too, and cover them with fabric to match the airplane.
    That's what I'd like to see as well. Keep it up, though. Almost there.
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