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Old 18th February 2007 | 21:31
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MTOW

I've always wondered why helicopters like the AW-139 and Blackhawk don't have higher maximum take off weights (especially for external sling loads). How is the MTOW determined? Thanks
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Old 19th February 2007 | 06:46
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From: After all, what’s more important than proving to someone on the internet that they’re wrong? - Manson
................by Performance or Structure/Dynamics whichever comes first!
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Old 19th February 2007 | 21:19
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It's the highest weight at which compliance with each applicable requirement of the FAR is shown.

A total weight with jettisonable external load can be established at a higher weight with a couple of provisos including limited operating limitations.

eg Reduced VNe
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