Quote:
Originally Posted by tools4fools
The Jumo is a much larger engine, stretching out further behind the wing.
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Agreed as my drawing showed
Quote:
Originally Posted by tools4fools
If you look at your own drawing there is only a small part of the BMW after the center wing, almost entire weight is in front.
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Agreed as my drawing showed
Most of the weight (mass) of the BMW engine is
FORWARD of the cg..
Which is explains why the OUTER wing was swept
BACKWARDS
As in to put some weight (mass)
behind the cg to counter the weight (mass) of BMW engine sticking out
ahead of the cg..
Quote:
Originally Posted by tools4fools
Not so with the Jumo, where approx 40% is in the back of wing center.
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Agreed as my drawing showed
And is the essance of my point
As for 40%, I don't know if I would go as far as to say 40% of the weight (mass)..
In that assumes a uniform distribution of weight of the engine, framing, skin, etc.
But I think we can all agree that there is more weight (mass)
behind the cg due to the replacement of the BMW with the Jumo..
With that said, we know..
The cg was 'set' for the BMW configuration
The cg will 'change' with the replacement of the BMW with the Jumo
The additional weight (mass)
behind the cg has to be offset with weight (mass) added
ahead of the cg.
Which is explains why the INNER wing was swept
FORWARD
As in to put some weight (mass)
ahead of the cg to counter the weight (mass) of Jumo engine sticking out
behind the cg..
Hope that helps! S!