The last post talked about dimpling, bending the sheet metal to fit a countersunk rivet. Its larger sibling is countersinking, which is used when the metal is too thick to allow dimpling. Countersinking is done with a countersinking tool, basically a drill with the correct angle and a pilot that holds it in the correct …
Some of the rivets used to assemble the Sling are counter-sunk, that is, they have a flat head that is flush with the skin of the aircraft. This has the advantage of giving the aircraft a more smooth appearance and also improving the air flow over the surface. Having a smooth surface is most important …
Our new house has a very nice garage that measures 8.4m deep by 7.4m wide internally. This equates to a two-car garage with extra depth, not a ton of space. But because it was built to house machinery, it has 3.7m high ceilings and garage ports going up to that full height. As such, there’s …