Cheyenne UD-4L
Dropship
Crew Compliant
:2 (pilot and gunner)
Performance:VTOL(vertical
take off and landing)
Max Speed -Upwards
of Mach 12.
Powerplant TF-900
turbines w/ aft mounted TF-220/A-14 ramrocket engines
Construction:
Superlplastic-formed diffusion-bonded metal matrix composites
(MMC)
Payload Bay-
9.5m long 4.5m wide 2.4m high +3.92m wide loading ramp
User
Notes :"A variation of the UD-4 dropship, this large cargo-carrying vessel
is in use by the USCM. The current model used is the UD-4L "Cheyenne" dropship.
The UD-4L has VTOL capability, as well as play a closecombat gunship role.
It has a 103.6 cubic meter paylod bay, and has a tri-skid undercarriage
landing assembly. The principle framework is made from superlplastic-formed
diffusion-bonded metal matrix composites (MMC). The payload bay is 9.5m
long by 4.5m wide by 2.4m high, with a 3.92m wide loading ramp which extends
from the back of the bay. The loading ramp can easily accomodate a M577
APC (with turret stowed). The spacious pressurized cockpit features two
crew positions, one for the pilot, the other for the weapons officer. Both
crew sit in ejection seats, certified for use at any altitude below 10,000
meters and speeds below Mach 1. The main fuselage of the UD-4L also features
mounting points for the main weapons pods and the secondary weapons bay.
The main weapons pods are attached to cross-folded pylons mounted just
in front of the ramrocket intake. The UD-4L runs off of two types of powerplants.
The main engines are a pair of TF-900 turbines. High-speed high-altitude
flight is andled by the other set of engines, which are aft-mounted TF-220/A-14
ramrockets. Top speed of the ramrockets is upward of Mach 12.".
USCM Operations Manual
