BruceMe
Well Known Member
I have the worst flying RV I've ever owned. My stick forces are huge. Now the pitch problems where fixed by swapping to a composite prop and adding some tail weight. That is much better now. Roll is still a problem... Here's what I know by measurement and photos.
Left Aileron 21.3 degrees up, -37.3 degrees down
Right Aileron 22.2 degrees up, -36.1 degrees down
Down aileron is supposed to go less than the up, so that seems backwards.
Here is what the left bellcrank looks like
NOTE: This is not centered, it's actually hard left, which means this aileron is up (21.3 degrees).
The online RV3B diagrams use the newer "cross-over" bellcrank like modern RVs. My older model RV-3 looks very similar to the RV-4 diagram (no cross over)
I can't tell if this is "as designed" or something got swapped. If anyone has seen this problem and knows the answer, I'd like to hear it.
Also, I do plan to pull the wings and do CN-1-1 and CN-2-1 this winter, so I can update the bellcrank to the cross-over.
Left Aileron 21.3 degrees up, -37.3 degrees down
Right Aileron 22.2 degrees up, -36.1 degrees down
Down aileron is supposed to go less than the up, so that seems backwards.
Here is what the left bellcrank looks like
NOTE: This is not centered, it's actually hard left, which means this aileron is up (21.3 degrees).
The online RV3B diagrams use the newer "cross-over" bellcrank like modern RVs. My older model RV-3 looks very similar to the RV-4 diagram (no cross over)
I can't tell if this is "as designed" or something got swapped. If anyone has seen this problem and knows the answer, I'd like to hear it.
Also, I do plan to pull the wings and do CN-1-1 and CN-2-1 this winter, so I can update the bellcrank to the cross-over.
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