Both the J31 & the J32 are identical in appearances. The J31 is the standard basic model...MGTW is 15565 lbs & still-air range of 250 miles. The J32 is a higher gross weight, extended range model...MGTW is 16205 lbs & still-air range of 370 miles, in addition having uprated engines. Hope this helps. Regards.
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