ORIGINAL: Lnewqban
Thanks, Matt.
I have edited my previous post to include the complete OP's question.
Note that he did not specify up or down vertical line, or if his was a modern pattern model.
I believe I assumed a down line, since, as you explained, the thrust angle is another factor in the balance.
FWIW-
when we were settingup IMAC/TOC models - we ran into the same old problems about thrust angles .
The problem became easy to resolve when it was noted that IF the model had enough thrust to maintain speed on the up verticals - no corrective thrust was needed
Which goes back to "a constant speed model requires far less corrective fiddling."
Note: the Up line verticals typically sapped so much speed on the up lines , the tendency was to start a pitch to the belly.
By simply increasing thrust to weight - the problem was resolved.
This was done by building to absolute minimums on weight and using tuned pipe engines
The new electric designs are far better at constant speed.
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