Attributes . 1,026 lb @ 300 rpm, 1,175 lb @ 200 rpm, 1,480 lb @ 100 rpm, 2,141 lb @ 33 rpm, 402 lb @ 5000 rpm, 449 lb @ 3600 rpm, 507 lb @ 2500 rpm, 565 lb @ 1800 rpm, 601 lb @ 1500 rpm, 687 lb @ 1000 rpm, 866 lb @ 500 rpm . Names