The higher the first 2 numbers on a octura the more it lifts.
the higher the last 2 numbers on the abc the more it lifts.
but if you use the same pitch rate number, let’s say 1.6(16) in both a abc and octura. The octura has much more lift.
if you had a
1457, 1655 and a 2117. All 45 rigger props, the 2117 has the least amount of lift and most speed
The 1457 would be the 2nd in lift and slowest prop
And the 1655 would have the most lift and be the second fastest prop. And it would have by far a lot more lift.