C135 Aircraft - The Boeing KC-135 Stratotanker is an American military mid-air refueling aircraft based on the Boeing 367-80 prototype in conjunction with the Boeing 707 passenger aircraft. This is an iconic version of the C-135 Stratolifter transport aircraft. The US Air Force's first jet fuel and replaced the KC-97 Stratofreighter. The KC-135 was initially assigned to refuel strategic bombers. But it was used extensively in the Vietnam War and later in conflicts such as Operation Desert Storm. To extend the range and duration of US fighter aircraft and tactical bombers.
The KC-135 entered service with the United States Air Force (USAF) in 1957; It is one of only nine military fixed-wing aircraft in continuous service for more than 60 years.
C135 Aircraft
With the KC-135's initial operator being augmented with the larger McDonnell Douglas KC-10 Extder, the study concluded that most aircraft could fly until 2030, although maintenance costs would increase substantially. The KC-135 would be replaced. Some with the Boeing KC-46 Pegasus.
French Air Force C135 Jet Aircraft Editorial Photography
Beginning in 1950, the Air Force operated the world's first production air carrier, the Boeing KC-97 Stratofreighter. which is a Boeing Stratocruiser aircraft A gasoline-powered piston refined aircraft (named USAF C-97 Stratofreighter) with a Boeing-designed flying boom and additional kerosene (jet fuel). ) Stratocruiser Boom Feed Bucket A post-World War II B-29 bomber, the KC-97 does not require a mixed gasoline/kerosene fuel system. And it is clear that the next development will be jet carriers. At a slow 230 mph (370 km/h), the piston-powered KC-97 was also a big problem. Due to their use as air tankers, the new jet-powered fighters had to be slowed down to mate with tankers. Boom.
A Boeing 707 KC-135 commercial airliner comes from the demonstration. It is a "proof of concept" version of the Boeing 367-80, commonly known as the "Dash-80." Like its sibling, the KC-135 is similar to the 707, but has a narrower fuselage and shorter 707 KC-. The 135 predates the 707 and is structurally very different from the civilian airliner. Boeing has assigned the initial name 717 to future KC-135 tankers.
The KC-135A refueled the B-52D during the Cold War. Both types of aircraft are operated by the Air Force Command.
In 1954, the USAF's Strategic Air Command (SAC) held a competition for a jet-powered aerial fuel tanker. Offered with a rear torso.
Boeing C 135fr Stratotanker
With Boeing's proposal already flying, the KC-135 could be delivered two years earlier, and Harold E. Talbott ordered 250 KC-135 tankers pending Lockheed's design in an order for the tanker. Lockheed's oil was withdrawn instead of maintaining the two tanker designs. Lockheed never made its own jets, while Boeing dominated the market with its 707-based aircraft family.
In 1954, the Air Force ordered 29 KC-135As, the first of approximately 820 aircraft for the entire base C-135 family. The first aircraft flew in August 1956, and the first production Stratotanker was delivered to Castle Air Force Base, California in June 1957. The last KC-135 was delivered to the Air Force in 1965.
On November 11, 1957, Deputy Chief of Staff of the Air Force, Gerald Curtis LeMay, tested the first KC-135 on a long-haul flight from Westover Air Force Base. Massachusetts to Buenos Aires Argentina
The main airframe developed in the early 1950s featured a 35-degree swept tail and wings, four underwing wings, a horizontal stabilizer mounted in the fuselage near the bottom of the vertical stabilizer. Right dihedral in two horizontal planes and a high-frequency radio antenna protruding from the top of the vertical wing or stabilizer. These basic features make them similar to the Boeing 707 and 720 commercial jets, but are actually very different planes.
Boeing C 135 Stratolifter
Reconnaissance and command aircraft models, including the RC-135 Rivet Joint and EC-135 Looking Glass, were used by SAC from 1963 to 1992, when they were reassigned to Air Combat Command (ACC) USAF EC-135. 135 Looking Glass, later replaced on duty by the US Navy's E-6 Mercury. This is a new airframe based on the Boeing 707-320B.
All KC-135s were initially equipped with Pratt & Whitney J57-P-59W turbojet thrusters, which produced 10,000 lb (44 kN) of dry thrusters and approximately 13,000 lb (58 kN) of wet thrusters. Wt.) Wet drag can be performed using water spray in flight, as opposed to "wet drag" used to describe post-combustion carcinogens. 670 US gallons (2,500 liters) of water were injected into the Fertilize within three minutes. Water is pumped into the intake housing and the diffuser in front of the combustion house. Water cools the drainage, increasing fertility. It also reduces the gas turbine temperature. This is the main limitation of most jet engines. This allows more fuel to be used for proper combustion. and provide more thrust in a shorter period of time. similar to the concept of "Emergency power in war" in piston aircraft
Nose view of several refurbished KC-135Rs before takeoff. The new cleaner is CFM56-2 high speed turbo fan.
In the 1980s, the first modification program converted 157 Air Force Reserve (AFRES) and Air National Guard (ANG) aircraft with Pratt & Whitney TF33-PW-102 turbofans from the 707s that were retired in the late 1970s. and in the early 1980s, a modified tanker known as the KC-135E was 14% more fuel efficient than the KC-135A and could carry 20% more fuel for long-haul flights. Reversing device for short take-off and landing stops. The KC-135E fleet has been retrofitted to an R-model configuration or kept in long-term storage ("XJ") due to Congress preventing the Air Force from disabling the KC. The last -135E, tail number 56-3630, was delivered by the 101st Air Refueling Squadron to the 309th Aerospace Maintenance and Recovery Group (AMARG) at Royal Thai Air Force Base. Davis-Monthan in September 2009
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A second modification project retrofitted 500 aircraft with the new CFM International CFM56 (military designation: F108), manufactured by Geral Electric and Safran. 100% Modified tankers designated as KC-135R (Modifications KC-135A or E) or KC-135T (Modifications KC-135Q) can carry up to 50% more fuel (in long agitation) by adding fuel. 25% higher productivity and 25% lower operating costs compared to previous cleaners. It's also noticeably quieter than the KC-135A. The noise level during flight was reduced from 126 to 99 decibels.
The operating range of the KC-135R is 60% greater than that of the KC-135E for a comparable reduction in fuel. This allows for a wider variety of basic options.
Upgrading the rest of the KC-135E to the KC-135R will no longer be considered. That would be about $3 billion, $24 million per plane.
Total operating and maintenance costs for the KC-135 fleet were approximately $2.2 billion in fiscal 2001, according to Air Force figures. Total cost for the older E models averaged $4.6 million per plane, while the R averaged $3.7 million per plane. These costs include personnel, fuel, maintenance, modifications and spare parts.
C 135 (series)
The KC-135 has undergone several avionics upgrades to increase its capability and reliability. One of these was the Pacer-CRAG (Compass, Radar and GPS) program, which operated from 1999 to 2002 and modified all aircraft listed to remove navigator positions from the crew. The fuel management system has also been replaced. The program was developed by Rockwell Collins in Iowa.
Block 40.6 allows KC-135 to comply with air traffic control around the world. Final Block Upgrade to KC-135 Block 45 online program with the first 45 upgrade aircraft delivered through January 2017. The 45th unit adds a new glass cockpit digital display. radio altimeter Digital Autopilot digital flight director and computer upgrades. Traditional analog instruments that are no longer available have been replaced. including all hydraulic gauges
Rockwell Collins has re-supplied the main avionics module and is working on a fix at Tinker AFB.
The KC-135Q variant was modified to contain the JP-7 fuel required for the Lockheed SR-71 Blackbird, separating the JP-7 from the KC-135's proprietary fuel supply (JP-7 tank and wing tank). JP) -4 or JP-8) Tankers also have a special fuel system for moving different fuels between different tanks.
C135 3d Model $61
When the KC-135Q received the CFM56 air cleaner, it was redesigned as the KC-135T, which was able to separate the main fuselage tank from the wing tank that received KC-135 air cleaner fuel. The only difference between the KC-135R and the KC-135T is the presence of a clear window in the lower part of the KC-135T's housing, which houses a remote-controlled searchlight. There are also two ground refueling ports located in each rear wheel well. so that ground staff can do that.
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