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Gross weight differences O-2 vs. 337
Not that WikiPedia is an infallible source, but it seems like the O-2 had a higher max gross weight than the civilian 337. Wiki claims the O-2 could be as heavy as 5,400 lbs. while the 337B, made in 1967 at the same time, tops out with 4,300 lbs.
So why the difference? Were the O-2s beefed up in some manner versus the civilian version that permitted the higher weight?
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