Frequently Asked Questions

What does it cost for a fleet the unit to use Omega?

The Omega tanker flying contract is administered by NAVAIRSYSCOM PMA 207.5. The tanker is funded for its flying hours using CNAF flying hours through PMA 207.5 to support Navy and Marine Corps Aviation. Thus, there is no direct cost to the military units for requesting and flying with Omega. All flights are approved by the Commercial Air Services Manager, the government representative. Omega Aerial Refueling Services, Inc. receives compensation per flight hour flown, regardless of how much fuel is offloaded. Fuel offloaded by the tanker is allocated and charged to the appropriate squadron in the same way that fuel received anywhere is allocated and charged, just like fuel in the hot pits, at transient operating bases, at transient government-approved civilian FBO's, or from USAF tankers. The cost of the fuel is the current gov't price of JP-5 for JP-5 or JP-8 for either JP-8 or Jet A fuel. As part of the contract, Omega does not pay for its fuel, but rather uses the same government credit card that military units use to pay for fuel. Omega must also use government-approved sources for fuel. As part of the contract, per diem and other associated expenses are covered as well.

What is contract air refueling?

Contract air refueling is a business using specially-equipped and converted civilian airplanes to serve as air refueling platforms that meet the operational needs of the U.S. Navy and Marine Corps.

How many Omega tankers are there?

Currently there are 2 KC-707 tankers and 1 KDC-10, each capable of flying up to 1200+ hours per year. 

What type of aircraft is the Omega?

The KC-707 Omega jets are Boeing 707-320 series aircraft. In the original Omega design, in one aircraft currently, the aft portion of the aircraft was modified with the two redundant hose and drogue assemblies. Other versions are the former RAAF 707 tankers and utilize wing-monted AAR pods, designated MK 32B-501. The KDC-10 is a modified DC-10-40 with 2 FRL wing pods.

What type of air refueling does Omega do?

Currently, Omega only conducts drogue type refueling.

What kind of baskets are on Omega?

On the centrerline AAR KC-707, Omega has 2 Sergeant Fletcher baskets on the aft centerline of the aircraft. Only one basket/hose assembly can be used at one time. The other basket acts as an immediate spare should it be needed due to malfunction or damage. On the KDC-10, 1 FRL pod assembly is on each wing. 2 aircraft may refuel simultaneously. The former RAAF 707's utilize a standard MA-3 coupling.

What is the K-707's fuel capacity and how is it different from a KC-135?

The Omega’s 707 fuel tank system is basically the same as a KC-135, without forward and aft body tanks. Both Omega and a KC-135 have two reserve tanks, two outboard main tanks, two inboard main tanks, and a center wing tank. Omega has larger wing and fuselage tanks, but without body tanks, Omega’s total fuel capacity is less. With a full fuel load, Omega can carry between 156k and 160k, depending on fuel type and temperature. At maximum landing weight, Omega can land with about 100k of fuel, so unless the flight is very short or has a low planned offload, Omega can usually takeoff with full fuel. On a 10,000 ft. sea level runway, Omega can takeoff with full fuel up to about 85 degrees F. Due to differences in the fuel transfer system, the former RAAF 707's can offload ~10-15% more fuel, depending on the mission profile.

What is the KDC-10's fuel capacity and how is it different from a KC-10?

As currently configured, the Omega KDC-10 is a basic DC-10-40 aircraft.  It is not a USAF KC-10 and does not hold the same amount of fuel.  In the current configuration, the Omega KDC-10 full fuel load is approximately 243K depending upon fuel type, density, and temperature.  Runway length, slope and condition, pressure altitude, OAT, cargo load, and passenger load will determine if a full fuel load can be carried on a mission.  At maximum landing weight with no cargo or passengers on board, the aircraft can land with approximately 125K of fuel (118K less than full fuel), so a good estimate of mission length and offload are required to prevent fuel dumping.  On a 10,000 ft, no slope, sea level runway, an Omega KDC-10 with no cargo or passengers can takeoff with full fuel up to about 90 degrees F. 

The chart below gives a general indication of fuel offload capability for the KC-707 and the KDC-10. For more detailed information, go to the Mission Planning Information page or contact Omega.

10 Off Load Graph 2


What is the cargo or personnel carrying capability of the KC-707 and KDC-10?

As long as runway performance criteria is satisfactory and offload requirements can be achieved, generic capability is below. Prior to mission execution, detailed cargo plans will need to be confirmed.

KC-707: ~5-8k of cargo and/or up to 19 (up to 110 on the former RAAF 707 model) seats are available. The jets have a cargo door and a roller cargo loading system.
KDC-10:  The aircraft is configured with 174 passenger seats.  All cargo must be loaded in the lower cargo compartments on pallets or in cargo containers.  The cargo compartment rail system is not compatible with standard size military pallets.  Military size pallets can be placed on standard DC-10 pallets and then loaded.  Cargo size is limited by the size of the lower cargo doors and of the lower cargo compartments.  The number of passengers and/or cargo that can be carried will be limited by a combination of the aircraft maximum takeoff gross weight, the departure airfield, and AR mission requirements.  As an example, on a 10,000 ft, no slope, sea level runway at 80 degrees F and a full fuel load, the Omega KDC-10 on a 5 hour flight could offload 115K and carry 20K of passengers and/or cargo.

Under what part of the FAR's does Omega operate?

Omega operates under FAR Part 91.

What are the communication/navigation capabilities of the Omega KC-707 and the KDC-10?

Communications: 2 VHF/UHF radios, 1 VHF radio, 2 HF radios. The radios are not for use with .xxx frequencies
Navigation: TACAN, VOR, INS, full IFR certified GPS (on some versions), IFR certified INS (on some models), Weather Radar
Communications: 2 VHF/UHF radios, 1 VHF radio, 2 HF radios, The radios are .833 capable
Navigation: TACAN, VOR, ADF, INS, IFR enroute GPS, Weather Radar

How can a unit schedule Omega?

Go to the Omega Scheduling Overview page to learn about the Omega scheduling process.

Last Updated on Thursday, 29 March 2012 14:37