11.1.5 Premolded NACA Scoop Installation

The openings for the two large scoops are embedded into the fuselage at the factory. I still need to cut out the openings and prep them for installation of the actual scoops, also pre-made at the factory. The small center scoop gets installed later and is used to bring fresh air into the cockpit.

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These two large openings are for the "NACA scoops", seen at the top of the photo, which are used to feed cooling air into the engine.

Here’s the prepared opening for the left scoop. I haven’t yet sanded around the edges. The fuselage comes with a pre-finish from the factory which needs to be removed so that the structural epoxy can bond to it. The section at the top is tapered so that the scoop, which is also tapered, fits nice and tight.

Closeup shot of the left scoop opening after being prepared to accept the factory pre-made scoop.

At this point the preparation for both openings is complete, the structural epoxy with a bit of Flox added has been applied and both scoops are placed into position. I’m using the Clecos to hold each scoop down while the epoxy cures.

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The scoops are being held down by a bunch of clecos while the structural epoxy cures.

Job complete, other than some finishing work to cover up the seams and make it all look nice. The small center scoop gets installed later when the fuselage is flipped upside down for body work on the bottom. There is also finishing work that needs to be done on the two large scoops inside the fuselage. Instead of trying to fight gravity, I’ll do that as well when we’ve flipped the airplane.

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Both scoops are now glued into position. There's still finishing work to be done to blend these into the fuselage.

Much more to come with all of this!

ui© John Trautschold 2018