The UD-4S Skycrane was a variant of the UA Northridge UD-4 "Cheyenne" Dropship. The UD-4S could be used to transport vehicles such as the M40 Ridgeway Heavy Tank, and in sufficient numbers could lift a Lockmart CM-88B Bison freighter.
Appearances[]
- Alien: The Roleplaying Game (mentioned only)
- Colonial Marines Operations Manual