Boeing OC-135 Open Skies

Les OC-135, dérivés du Boeing 707, sur Wikipedia.en Merci !

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The OC-135B Open Skies [Vous devez être inscrit et connecté pour voir ce lien] observation aircraft supports the [Vous devez être inscrit et connecté pour voir ce lien].

The aircraft, a modified [Vous devez être inscrit et connecté pour voir ce lien], flies unarmed observation flights over participating parties of the treaty.

Three OC-135B aircraft were modified by the Aeronautical Systems Center's [Vous devez être inscrit et connecté pour voir ce lien] at [Vous devez être inscrit et connecté pour voir ce lien] in [Vous devez être inscrit et connecté pour voir ce lien].

The first operationally capable OC-135B was assigned to the [Vous devez être inscrit et connecté pour voir ce lien] at Offutt AFB in October 1993.

It is now fitted with a basic set of navigational and sensor equipment, and placed in inviolate storage at the [Vous devez être inscrit et connecté pour voir ce lien] at [Vous devez être inscrit et connecté pour voir ce lien] near [Vous devez être inscrit et connecté pour voir ce lien], [Vous devez être inscrit et connecté pour voir ce lien].

Two fully operational OC-135B aircraft were delivered in 1996 with the full complement of treaty allowed sensors, which includes an [Vous devez être inscrit et connecté pour voir ce lien] line scanner, [Vous devez être inscrit et connecté pour voir ce lien] and video scanning sensors.

Description of aircraft

The interior seats 35 people, including the cockpit crew, aircraft maintenance crew, foreign country representatives and crew members from the U.S. Department of Defense's [Vous devez être inscrit et connecté pour voir ce lien] (DTRA).

Cameras installed include one vertical and two oblique KS-87E framing cameras used for low-altitude photography approximately 3,000 feet (900 m) above the ground, and one KA-91C panoramic camera, which scans from side to side to provide a wide sweep for each picture used for high altitude photography at approximately 35,000 feet (10,000 m).

The data annotation and recording system (DARMS) processes navigational, altitude, time and camera signals to annotate each picture with correct position, altitude, time, roll angle and other information.

In addition, this system records every picture taken according to camera, frame and navigational position and downloads these data to a [Vous devez être inscrit et connecté pour voir ce lien].

A keyboard with [Vous devez être inscrit et connecté pour voir ce lien] is the input device for operation of this system.

Two Barco 12-inch (30 cm) [Vous devez être inscrit et connecté pour voir ce lien] color monitors display camera annotation and other camera data on screen for the sensor operator and observer use.

Camera control, located in the sensor operator's console, operates and adjusts individual cameras for cloud cover, frame overlap and other functions.

The sensor operator console seats four and has all the equipment listed above plus camera bay heating control, chronometers, emergency oxygen, interphone and individual lighting.

The flight following console also seats four and includes most of the equipment listed above except for DARMS and camera controls.

Seven commercial Norcoid Tek II coolers with individual refrigeration units maintain temperature and humidity control to maintain peak film performance.

The units can be removed, if necessary, from the aircraft in order to transport film.

The coolers are capable of storing 40,000 feet (12 km) of film.

Flight path

The aircraft flies on its intended flight path throughout the entire mission with no reliance on ground-based navigation devices.

A top-of-the-line commercial system, Litton 92 INS/GPS, which is an integrated [Vous devez être inscrit et connecté pour voir ce lien] (INS) with a [Vous devez être inscrit et connecté pour voir ce lien] (GPS), provides continuous updates.

The GPS updates the INS several times per second to correct any deviations in the flight path.

The INS also feeds precise latitude, longitude, time, roll angle and barometric altitude to the DARMS and camera systems.

A true airspeed computer feeds true airspeed data to the INS.

A combined altitude radar altimeter provides precise height above ground information to the pilot for navigational purposes as well as a signal to DARMS for film annotation.

It is accurate from 0 to 50,000 feet (15,000 m) above the ground level. Plus, a metric altimeter is installed on the pilot's instrument panel for altitude reference when flying in countries that use meters for altitude reference.

The aircraft are being upgraded with the Block 30 Pacer Crag Navigational System upgrade, a first step in making them compliant with ICAO mandated [Vous devez être inscrit et connecté pour voir ce lien] and [Vous devez être inscrit et connecté pour voir ce lien] guidelines.

Modifications

The OC-135B modifications center around four [Vous devez être inscrit et connecté pour voir ce lien] installed in the rear of the aircraft.

Since its primary mission is to take pictures, most of the installed equipment and systems provide direct support to the cameras and the camera operator.

Other modifications to the aircraft also included installing an auxiliary power unit, crew luggage compartment, sensor operator console, flight following console and upgraded avionics. Other modifications support the aircrew.

A gaseous oxygen system replaced the liquid oxygen system to be more compatible with foreign airfields, and fluorescent lighting system was added throughout the cabin to provide adequate lighting for operation and inspections.

Four upgraded seats with a conference table, interphone, lighting and oxygen comprise the mission commanders' station
for both countries' mission commanders.

A four channel interphone system enables segregated communications between various elements onboard.

The auxiliary power unit enables the aircraft to start engines and provides electrical power and cabin heat independent of ground support equipment.

It was manufactured by [Vous devez être inscrit et connecté pour voir ce lien] with the installation and design of the installation by E-Systems and World Auxiliary Power Company.

The aircraft are assigned to Air Combat Command at the [Vous devez être inscrit et connecté pour voir ce lien], [Vous devez être inscrit et connecté pour voir ce lien], [Vous devez être inscrit et connecté pour voir ce lien] near [Vous devez être inscrit et connecté pour voir ce lien], [Vous devez être inscrit et connecté pour voir ce lien], for operations, training and maintenance.

When tasked, ACC's role is to transport a DTRA observation team to an Open Skies point of entry airport, and conduct the observation flight, then return the team to the continental United States.

OC-135 B en Russie

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Atterrissage à Mildenhall

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OC-135B

Whitehorse. Canada

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Khabarovsknovy

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