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RV-7
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Date:  4-4-2020
Number of Hours:  8.00
Manual Reference:  
Brief Description:  W&B Prep; fuel flow test at injectors

Set up plane in level attitude and measured the stations of the main wheels and TW. Used plumb bobs on LE to transfer the 70" station to the floor. Measured to the center of the axel of the wheel to the bob line for both left and right. (-0.8" R, -0.5" L)

Transferred the 70" station across the bottom of the fuse with a laser level and found the AC centerline. Measured CL to TW axel center, transferred to the floor, and measured the distance between 70" station and TW (+179.375")

Ready for the scales!

Also ran a fuel flow test at the injectors per the Lycoming debugging doc and Airflow performance doc to test for contamination in the injection systems. After disconnecting the fuel lines and pulling the injectors, I reconnected the injectors and purged any air from the lines. Then with empty jars, ran a 30 sec FF test and compared the accumulated fuel. I could detect no significant difference in the fuel flowed from each injector. System appears clean!
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forward offset of R main

forward offset of R main

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Measuing TW positon wrt wing LE.

Measuing TW positon wrt wing LE.

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Fuel flow test at injectors.

Fuel flow test at injectors.

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