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Old 03-22-2022, 08:32 AM
Freemasm Freemasm is offline
Join Date: Nov 2017
Location: Orlando
Posts: 759
Default Thrust angle

Have my PV (I)O360 temporarily mounted to start laying out FW stuff. Haven't measured it yet but there's a pretty noticeable right lateral thrust angle. Searching through the plethora of docs, I didn't find anything related. Could someone steer me to the right place or otherwise help me out here?

Much thanks.
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Old 03-22-2022, 08:59 AM
bjdecker's Avatar
bjdecker bjdecker is offline
Join Date: Jun 2005
Location: Georgetown, TX
Posts: 1,240

IIRC the engine centerline/thrustline is offset from the longitudinal axis by 4

F1 Boss could be a resource here...
Brian Decker
RV-7 (Flying)

Last edited by bjdecker : 03-22-2022 at 09:07 AM.
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Old 03-24-2022, 06:52 AM
Freemasm Freemasm is offline
Join Date: Nov 2017
Location: Orlando
Posts: 759

Haven't heard anything yet. Did a tight-line measurement and calculated 1.2 deg right. Vertical basically 0 (pre-sag). A quick calc tells me a couple of 1/8 shims at the left isolators will only get me to ~2.4 degrees. Am I overthinking this?

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Old 03-25-2022, 06:55 AM
engineerorange engineerorange is offline
Join Date: Apr 2008
Location: Catawba, NC
Posts: 205

the correct offset is built into the mount. No need to measure, shim or otherwise fuss about. Just put it together.
mangling aluminum since May 2009
RV7-A, flying
RV8 under construction
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