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Home of the Spodplane
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Date: 6-6-2021
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Number of Hours: 2.00
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Manual Reference: 09-07
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Brief Description: Brake fairings
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Look as hard as you like in the plans, there is nothing about wheel pants. This is fine by me, I am a wierdo I am sure, but I DON'T LIKE WHEEL PANTS. The concept of removing them to check tyre pressures just gives me the heebie-jeebies. On the other hand, on those canards that don't have them, the gear leg ends and exposed calipers just look awful. I have decided to emulate the cute little brake fairings on the AESL CT-4a Airtrainer on my plane, and that is it. My limited understanding of aerodynamics does not see a huge advantage in the pant. Whatever, I'll fly like this, and assess if pants are required later. I am also an admirer of the pants with wheel exposed in US Navy aeroplanes of the '30s. Mmmmmmmm.
As my first attempt plot a couple of airfoils, a NACA 006 that will go from the front edge of the tyre, cover the brake and strut hardware, and finish at a point about 5" aft of the rear edge of the tyre. Vertically, I go for a Selig S1010 HPV airfoil, that has a pronounced wide aft portion, that will miss the bleed valve on the caliper, and still encompass the disc rotor, and finish at the rear edge of the tyre. The NACA will terminate where the Selig converges.
I make a form from EPS PVC foam, tape it up and apply 10 x UND. [Timewarp tomorrow: I was aiming for the same thickness as my cowls, but overshot by 100%. It is OK, the part wasn't usable anyhow]
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CT-4a
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This might be part of the ultimate pant concept. Dunno.
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Covering the form with twice as much glass as it needs...
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