What is the principle of vertical landing of American F 35 fighters

First of all, there are 3 models of the F-35, namely the Air Force F-35 CTOL type (F-35A), the Marine Corps F-35 Stovl type (F-35B), and the US Navy F-35 CV type (F-35C). Not all models can take off and land vertically, only the F-35B of the Marine Corps can take off and land vertically. The principle of F-35B vertical take-off and landing is actually very simple, the basic principle is to generate downward thrust, so that this thrust is greater than the gravity of the aircraft.

The specific method of the F-35B is to install a thrust vectoring nozzle on the engine of the aircraft (the general jet engine can only jet backwards, and cannot change the direction of thrust, and the engine that can change the direction of thrust is called a thrust vectoring engine) so that the tail nozzle of the engine can be turned downward, so that it can be jetted downwards to produce downward thrust. Because the aircraft cannot be regarded as a particle, it is not possible to have upward thrust in the tail alone, so the F-35B also installed a lift fan behind the cockpit in the front of the fuselage, which can generate downward thrust to balance the torque generated by the rear engine, and drag the fuselage up with the rear engine, so as to achieve the vertical take-off and landing of the F-35B. The F-35B installed the F-135 engine and lift fan of Pratt & Whitney and Rolls-Royce (in fact, it is another translation method of Rolls-Royce, which used to be together, and later the part engaged in the engine and the part engaged in the car were separated, and the part engaged in the engine is customarily translated as Rolls-Royce).

The F-135 is equipped with a thrust vectoring nozzle that can be deflected 95° downwards and a maximum of 15° left and right. I'll attach you a few diagrams: The following two pictures are the power composition of the F-35B, and the thrust vector nozzle of the lift fan and the engine can be clearly seen These two pictures are the schematic diagram and model diagram of the F-135 engine respectively (note that schematic diagram, it should be the F-135 engine, the label on the picture is F-119, in fact, the F-135 engine is improved from the F-119 engine, and the F-119 is the engine of the F-22 fighter):

That is, the engine is facing down, and the nozzle is spraying air downward, according to the third law, an upward reaction force is generated to promote vertical take-off and landing.

An engine is placed vertically in the middle of the body, creating a reaction force that pushes it upwards. The tail spout can be rotated, the principle is the same.

The F-35B uses a vertical thrust system called a lift fan for vertical take-off and landing.

It divides the power output of the F-119-611 engine into four parts:

The first part is to transmit power through the turbine spindle to a fan unit located at the front of the engine, which creates a downward jet of air, resulting in vertical lift.

The second part is to deflect the gas ejected from the engine's combustion chamber backwards through a deflection nozzle to achieve a second vertical lift.

The third and fourth parts are directed to the wings by means of two guide tubes, and then sprayed down through the spouts on the wingtips. These two vents also adjust the direction and volume of the jet, allowing for vertical lift and controlling the attitude of the aircraft during take-off or landing.

How to achieve vertical take-off and landing of F35 fighters? Listen to the bureau seat to tell you about the knowledge points you don't know! How to achieve vertical take-off and landing of F35 fighters?

Listen to the bureau seat to tell you about the knowledge points you don't know! How to achieve vertical take-off and landing of F35 fighters? Listen to the bureau seat to tell you about the knowledge points you don't know!

As the world's most advanced vertical take-off and landing fighter, the F35 vertical take-off and landing principle, come and learn it.

The F35B tail jet can rotate down more than 90 degrees, and together with the front-end lift fan, the fuselage is supported, and the jet aircraft has no other means to hover.

It uses the flight control system to control the F136 engine and a two-stage counter-rotating lift fan to complete vertical take-off and landing.

During VTOL, the engine is computer-controlled so that its engine nozzle is oriented towards the ground, and a two-stage counter-rotating lift fan behind the cockpit is opened to provide another lift, allowing the aircraft to take off and land vertically.

In the F35B, the pilot simply tells the flight control computer system where the plane is going. The system will quickly come up with a thrust generation plan, automatically adjust the thrust nozzle angle, jet and control the aerodynamic force. The pilot can control the F-35B vertical take-off and landing or high-speed level flight with a few button presses according to the requirements displayed on the display.

How to achieve vertical take-off and landing of F35 fighters? Listen to the bureau seat to tell you about the knowledge points you don't know! How to achieve vertical take-off and landing of F35 fighters?

Listen to the bureau seat to tell you about the knowledge points you don't know! How to achieve vertical take-off and landing of F35 fighters? Listen to the bureau seat to tell you about the knowledge points you don't know!

The F-35 fighter has a high-power propeller at the bottom, and when the propeller is activated, the aircraft can rise vertically. The F-35 is the hallmark of the new generation of joint fighters of the United States. China did not make it public.

There is a vertically placed engine on the back of the aircraft, which provides lift for vertical take-off. The movie Die Hard , the last part is there.

The engine of the F35 is the F135, which has by far the largest thrust in the world. This vector engine aims the vent at the ground when the aircraft rises vertically, propelling the aircraft into the air with a strong air current.

It is equipped with two engines, one designed to provide lift during vertical take-off, plus the tail nozzle deflects downward to provide lift, and the air intake of this engine is on the back. The other is the main engine, which mainly provides forward power for the aircraft.

It is the vertical nozzle of the belly and the tail nozzle of the aircraft that rotates together to exert force that is the vertical of the aircraft, In the past, when the Harrier appeared in the United Kingdom, the country copied it (I have seen the information on this), but only one test machine appeared, and it has not been studied

The vertical lift fan and main engine behind the F35 cockpit are independent of each other. When flying horizontally, the hatch of the vertical lift fan is closed, and the thrust in the horizontal direction is done independently by the main engine. In vertical lifting, the lift fan is driven by a spool and driven by the engagement of the gears of the gear, which outputs vertical thrust.

At this point, the tail nozzle will deflect downwards at an angle, and together they will output vertical lift. The main thing is the big fan.

According to relevant information: Lockheed Martin is working hard to complete the production target of 121 F-35 fighters. To this day, Lo Ma has to admit that it had significantly underestimated the impact of the pandemic.

At the beginning of the year, the Pentagon also publicly stated that the new crown epidemic will not have an impact on the combat readiness of the US military. It can be seen from the serious reduction in the scale of production of F-35 fighters and the outbreak of the epidemic on the USS Roosevelt aircraft carrier in the early days that the impact is real, and they underestimated the impact of the epidemic. The role of fighters on the battlefield is to conduct air battles with enemy fighters, to seize air supremacy (air supremacy).

Fighter aircraft, also known as fighter aircraft, is a military aircraft used to destroy enemy aircraft and other flying air attack weapons in the air, and was widely known as destroyers in World War II. The main task of the fighter is to engage in air combat with enemy fighters and seize air superiority (air supremacy). The second is to intercept enemy bombers, attack planes and cruise missiles, and can also carry a certain number of ground attack ** to carry out ground attack missions.

Military aircraft include fighter planes, attack planes, bombers, reconnaissance planes, etc. During World War II, it was called a destroyer and was a type of military aircraft. In contrast to the bombers of the Strategic Air Force, the fighter refers to the aircraft of the Tactical Air Force.

In the early days, fighter aircraft were divided into two main types of air supremacy and interception, and later there were no special interceptors, and air supremacy interceptors usually had good maneuverability at medium and low altitudes, equipped with medium and short-range air-to-air missiles, and through medium-range air combat, they shot down enemy planes in close combat to gain air superiority, or escorted their own military aircraft, requiring high-altitude and high-speed performance, and were mainly used for air combat, fighting for air supremacy, and intercepting enemy bomber groups.

Fighters are generally single-seater. In order to expand the pilot's field of vision, a blister-shaped cockpit is adopted to ensure that the pilot can be ejected to a sufficient height even on the ground, and a large number of internal fuel tanks are used to carry about 30% of the normal take-off weight. The aircraft control system widely adopts digital fly-by-wire control, and on the basis of active control technology, it adopts to improve the combat performance of the aircraft.

The various mechanical equipment and control systems on the fighter aircraft are becoming more and more complex, and the maintenance workload has greatly increased. For this purpose, the surface of the aircraft is covered with a large number of mouth covers and doors for inspection and maintenance, with a total area of 60% of the aircraft's surface area. All electronic devices are built with a building block structure with automatic detection capability and can be easily replaced with inserts in the field.

Modern fighters have high reliability and good maintainability.

It can take off and land vertically, Type B is used in the Navy, special features: stealth, data link, large bomb load, vector engine, short take-off and landing.

The British Harrier fighter seems to have been decommissioned.

The world's main VTOL fighters are the most famous British "Harrier" VTOL fighters, in addition to the American F-35B fighter and the Russian Yak-141 supersonic VTOL fighter.