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originally posted by: Zaphod58
a reply to: HighDesertPatriot
The initial design didn't call for it to be able to refuel helicopters. That came along later at the request of several customers.
originally posted by: Zaphod58
a reply to: HighDesertPatriot
Turboprop engines handle unpaved strips and rough runways that jet engines don't.
originally posted by: Zaphod58
In addition to the C-130 having access to rougher strips, a C-17 requires 3,500 feet to operate, if it's extremely light. The C-130 only needs 3,000 feet with a medium load. That's with a 500 foot safety margin added. The J model can takeoff with a heavy load in similar conditions.
Props have more constant thrust than jet engines so they actually produce more power at low speed.