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Steve's CH750 Cruzer (N750SB)
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Date:  8-10-2017
Number of Hours:  6.50
Manual Reference:  
Brief Description:  Radiator Air Box

The edges of the radiator have a short flange in which an A5 size hole has already been pre-drilled. I added more holes and riveted an L on each long edge to use as a mounting surface for the air box. Set the angle at which I will have the radiator sit. When I went to MO to look at the engine a couple of months back, Jan had the plane secured behind a truck for 1st flight and ran the engine at high RPM for quite a while and the hoses were barely warm. I'm starting out with a shallow angle as I believe cooling won't be an issue and I can always drop it down if needed. Anyways, some .02" sheet aluminum from the aviation dept at Lowes forms the sides of the box and another couple of Ls secure it to the bottom of the plane. I still have to take it apart and debur before riveting, but it looks great and seems pretty solid. Not sure if I will seal up the back or not, if I need some extra cooling, it is no big deal to do that. 1st flight should be in Winter, so I'll be able to make tweaks gradually if necessary.

NOTE FROM FUTURE SELF: Based on fitting the lower cowl, I probably should have been more agressive with the angle of the radiator and more realistic in my expectation of 1st flight timing.
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Adding mounting flanges to radiator

Adding mounting flanges to radiator

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Box from passenger side

Box from passenger side

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Front view

Front view

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