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Monday, August 10, 2009

The Airbox



This is an airbox from a Piper Arrow. With minimal modifications, it fits an IO540 engine on a Velocity mount. It takes 4 inch SCAT tubing from the plenum runner and connects with it to the big 4 inch mount on the fuel servo. It also takes a standard automotive air filter and opens with 3 quarter turn fasteners to change out the filter. Pretty neat.

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Here is the alternate air door. This is where I really like going with metal and factory made. After a 200 knot cruise descent into Myrtle Beach in the first Velocity with my home made fiberglass airbox and door, We went to take off only to find we could get only 1800 rpm. We pulled back to the ramp and removed the cowl, finding the door pulled off and sucked almost into the fuel servo. Yikes. This one is very sturdy.

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Here is a view from underneath showing the 90 degree scat coupling to the fuel servo.

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It is looking very full in the engine compartment! Tomorrow, I'll install the rudder cable pulleys and adjusters. This weekend, I will install the elevator push pull tube. I can then officially sit in the plane and move all of the control surfaces with the flight controls. Good stuff.

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