Sea Basing Ensuring Joint Force Access from the Sea (2005) / Chapter Skim
Currently Skimming:
2 Long-Range Heavy-Lift Aircraft to Enable Sea Basing
2 Long-Range Heavy-Lift Aircraft to Enable Sea Basing
Pages 17-32
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 17... ...
However, in more typical situations such as in the ongoing war in Iraq, traditional supply lines will be vulnerable to attack from bypassed enemy units, suicide bombers, land mines, and so on. Army and Marine units pushing toward Baghdad, for example, were held up by the need to bring supplies overland through a gauntlet of bypassed Iraqi forces.
|
From page 18... ...
The ability to resupply combat forces over long distances without depending on truck convoys is fundamental to the operational concepts of Sea Basing. This means that Marine Corps ground forces and early-entry Army forces will be more dependent on air transport than they ever have been in the past.
|
From page 19... ...
FIGURE 2.2 Heavy-lift, vertical-takeoff-and-landing capabilities: radius and payload requirements to support Sea Basing. NOTES: NAVAIR, Naval Air Systems Command; Ops, Operations; "Stop-Gap," temporary; IPT, Integrated Product Team; Ambient TBD, ambient temperature and altitude are to be determined; COD, carrier onboard delivery; STOM, Ship-to-Objective Maneuver; lb, weight in pounds; nmi, distance in nautical miles; NATO, North Atlantic Treaty Organization.
|
From page 20... ...
at ECC Capability at nmi ft/95 kt State in ton min Joint Common 24 (FCS 20 2,100 4,000 >180 LHD/LHA Compatible Sea TBD FCS TBD (A)
|
From page 21... ...
463L, efficient military mounted ship, TBD 80% 83 ~2015 1st (2017) TEU: maximum MILVAN: maximum ECC, Army assault equipment; MILVAN, AMT, delivery; hours; amphibious ASE (2012)
|
From page 22... ...
At a speed of about 110 knots, the CH-53 could transport the assault echelons of an MEB a distance of about 110 nmi in one 8 hour period of darkness. The operational radius of an MV-22, with its maximum external load equivalent to one Humvee, is also about 100 miles.2 However, these aircraft are not capable of transporting a light assault vehicle (LAV)
|
From page 23... ...
For example, the assault on the Medina Division of the Republican Guard near Karbala, Iraq, on March 24, 2003, by AH-64D Apache Longbows revealed the vulnerability of even armored helicopter gunships to small-arms fire. Alerted to the Apaches' approach by lookouts along their route, Iraqi civilians armed only with AK-47s and soldiers with unguided artillery fired barrage-style in a crude but effective ambush.
|
From page 24... ...
Compound rotorcraft cannot deploy the assault echelons of an MEB over the distances required (150 to 300 nmi) for Sea Basing in an 8 hour period.
|
From page 25... ...
performance, depending on how the aircraft design emerges from detailed design studies. HEAVY-LIFT TRANSPORT AIRCRAFT ALTERNATIVES The committee emphasizes the need to pursue advanced technology to develop a ship-capable, fixed-wing, VTOL transport aircraft to meet the requirements of Sea Basing.
|
From page 26... ...
Significant increases in the static thrust of turbofan engines can be obtained by increasing the bypass ratio of the cruise engine for vertical takeoff and landing. The effective bypass ratio can be increased by using the energy in the cruise engine exhaust jet to power a lift fan installed in the wing of the aircraft.
|
From page 27... ...
Mixing of the engine exhaust jet and the entrained air within the ejector duct reduces the velocity, temperature, and noise of the lift jets. The low-temperature and -pressure footprint of this mixed flow would enable an aircraft to operate from ships other than aircraft carriers, and in unprepared, constrained, tactical landing zones ashore.
|
From page 28... ...
However, the actual requirement is not to take off and land a large aircraft vertically, but rather to deliver and recover a 40,000 to 50,000 lb payload vertically. Therefore, an alternative approach might be a compound aircraft system consisting of two or more aircraft flying wingtip to wingtip in order to take advantage of the induced drag reductions available from flying in close formation.
|
From page 29... ...
By flying behind and outboard of the tanker aircraft, the VTOL delivery aircraft could realize significant drag reductions, thus increasing range or payload.
|
From page 30... ...
This hitchhiker concept would reduce the technical risk and cost associated with developing heavy-lift VTOL aircraft to support Sea Basing, by increasing the range of smaller aircraft that can more easily make vertical takeoffs and landings. The critical technologies are these: · The VTOL lift system, and · The software for automatic formation flight.
|
From page 31... ...
Therefore, the committee believes that the requirements of Sea Basing could lead to the need for a fixed-wing aircraft utilizing powered lift for VTOL performance. · Powered-lift system concepts for such a heavy-lift VTOL transport aircraft are currently at TRL 2.
|
From page 32... ...
20 ft container or the Stryker combat vehicle to an operational radius of 150 to 300 nmi at high speed and altitudes in order to meet the requirements of Sea Basing. The development of such an aircraft should be undertaken as a joint Service program in collaboration among the Air Force, Army, Navy, and Marine Corps.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.