launch vehicle management.

launch vehicle management.

Placement of the carrier rocket on a plane.


Author: Igor Makarov.


Part 5.


Part 1. Part 2. Part 3. Part 4.


Additionally, the formula was used to determine the turning radius of the carrier rocket.

The second stage of the carrier rocket traektorii Paulsen department otnee gnesuschih overcomes surfaces using a braking parachute.

The definition in the first group of formulas and the second coincide, namely: x is the ordinate of the point, y is the abscissa of the point, Vx is the projection of the velocity on the x axis, Vy is the projection of the velocity on the y axis, Me is the moment of external forces acting on the body, and is the moment inertia of the body (launch vehicle), Ɛ is the angular acceleration of the launch vehicle, Xa is the aerodynamic drag, Ya is the aerodynamic lift, Ɵ is the pitch angle of the aircraft, Cx is the drag coefficient of the launch vehicle, Sua is the lift coefficient of the wings booster rocket, ω is the angular velocity of the body, m is the mass of the body (booster rocket), g is the acceleration of gravity (9,81 m / s2), ρ is the air density, Sp is the area of ​​the open braking parachute, Sm is the area of ​​the midsection of the launch vehicle, Sv is the wing area of ​​the launch vehicle, r is the radius of the launch vehicle's maneuver, ny is the normal overload of the launch vehicle.


Booster control


To control the booster is necessary to devise a special program, which provides management with the help of a booster of speed, pressure and location in space. In addition, the aircraft is necessary to increase the number of crew members on 1 person to be entrusted with responsibilities for monitoring the work of the automatic control system. In the event of a failure of this system, this crew member must take control of the system by himself in manual mode. The control will take place with the help of an onboard central computer, will be in the rocket. Its mass will be relatively small, because the level of modern technology is at a high level. This fact proves that additional equipment will not cause displacement of the center of gravity of the aircraft. It is also possible to use the central onboard computer of the booster to control the booster on the active parts of the trajectory.


Proper placement of the carrier rocket


Accommodation launcher on the plane.

The center of mass of the aircraft is located at the intersection of the axis of rotation of the aircraft. At this point, all the forces acting on the aircraft are summed up. The center of mass is constantly changing its location. This is due to the peculiarities of loading the aircraft, the amount of fuel, its production in flight and other factors. If the center of mass goes beyond the boundary delineated by the design of the aircraft, the aircraft can completely lose control.

For an airplane wing center of pressure - is the point of intersection of the line of action of the aerodynamic force with the plane of the chords of the wing. In general, its position varies with the angle of attack. But there is a profile shape - the so-called profile with a constant center of pressure, for which the position of the center of pressure remains unchanged.

To maintain alignment in the operational limits of the aircraft will be offered accommodation booster of the aircraft. Thus, to the center of mass booster coincide with the center of mass of the aircraft.


Modification of aircraft


Given that the booster will vidstrileno from the aircraft using rocket boosters, there is a need for thermal protection of the fuselage, as well as the top panel and the front of the keel. The main material is heat-resistant sheathing plane - is titanium. Also titanium is relatively lightweight compared with ceramic plates, which are used on ships series "shatll" too titanium also widely used in aircraft to fly the aircraft at supersonic speeds.

In order to ensure safety during shooting of the booster mounting locks that would let the booster is necessary to ensure a system of jamming opening (in the case of improper position of the launcher). It is further possible to use special heat-resistant enamel (such as those used in the flame tubes of the combustion chamber jet engines), which would introduce additional protection for aircraft panels.


Remedies aircraft


In the case of an unsuccessful shooting booster aircraft makes maneuvers dive down, and she booster using accelerators flies away from the aircraft. In the event of an emergency, in the case where the aircraft could not avoid a collision with a booster, the crew of the aircraft is the ability to eject.

After the booster goes to the angle of attack in -5 - 7o and reduced to a suitable height (9600m) automatically (using the accelerometer), driven by a mechanism that disconnects the main bolts and wing separates from the booster, then performed the opening of the parachute and brake booster, which continues to fly as normal. Wing falls to the ground. Given that the launch is carried out over the ocean, fragments do not threaten the lives of people.

To stabilize the booster the following devices: gyro compass, accelerometer and gyro horizon.