Motorglider AC-5M

Aircraft performance AC-5m

Main dimensions

Speed measures in a gliding flight

Restrictions and the basic modes of flight

The maximum aerodynamic quality Кmax (relative range of planning L/H) and value of speeds of the basic modes of flight:

WING

The trapezoid wing of the big lengthening (20,6) has laminar profile FX60-157 with high value of the maximum carrying power. Specific loading on a wing is in limits from 33 kg / sq. m to 39 kg / sq. m depending on weight of useful loading. The glider possesses highly maneuvor properties: time of a rerun for spirals–45 degrees in 45 degrees makes of a list no more than 3,5 seconds. The sinuosity of a surface of a wing along a profile makes 0,1 mm (under the American standard) that corresponds to the higher range of quality of a surface under the American standard. Wing consoles it is powerful 38 kg incorporate in the center one adjusting finger having on the end the eccentric for tightening of consoles at joining. Automatic connection of control systems by elerons and air brakes is realized thanks to system of cross-section drafts with funneled edge lines, incorporating to spherical tips of onboard swigs.

THE CHASSIS

Motor-glider AC-5M is equipped by a withdrawable basic wheel of chamber type. Shock-absorbers are absent. The cylinder of a wheel in diameter of 310 mm on an external contour of a tire cover reliably works on absorption of shock loadings; the tail wheel in diameter of 220 mm stabilizes rectilinear movement on run. In a design of the basic wheel ball bearings, and as the brake of "drum-type" type put in action with the help rope cable of type "Bouden" are built in. The brake copes the lever of bicycle type established on the handle of management.

CABIN

The spacious cabin of a glider allows to take place conveniently in it even to broad-shouldered pilots growth 180 - 190 sm, thus remain enough empty seat in the space of a head and high knees of legs; the pilot cabin is equipped by pedals of a wheel of a direction regulated on length and a back of sitting moved largely. The lantern of a cabin consisting of 2 parts, gives to the pilot the full review out of cabin spaces within corners not less than 300 degrees: "at the left-upwards-to the right". The lantern Windshield is fixed, and its central part can open and lean back to the right thanking to a ball-type suspension bracket. Emergency dump of a lantern can be executed by moving of two red handles conveniently located on both boards of the bottom contours of a lantern. The compact control panel has enough free space for placing of the standard complete set of pilot-navigating devices, plus possibility of a custom-made configuration, including an additional variometer or other devices. The standard 4 dot fastened system is applied. VHF aerial is placed in keel.

THE ENGINE

Firm - the manufacturer: COMPACT RADIAL ENGINE Ltd.
Mark of the engine: MZ 35R
The engine 2 tacts, one-cylinder, air cooling. The carburetor with the pumping up pump diaphragm type.
For installation on a motor-glider the engine is modified: the exhaust system and the muffler is changed.
One of the basic parts of impellent installation is a wedge-rope serving for decreasing of speed of rotation of `the air screw. The reduction factor makes size 2,2:1.
The engine is started by an electrostarter capacity 450 W.
The electrostarter engine feeds from a source of a direct current pressure 12В.
The engine shaft puts in action the combined generator of an alternating current capacity of 90 Vt which serves system of ignition and develops the electric power to charge the starter battery. Starter (lead) storage battery is established in a cabin of the pilot under a control panel.
Devices of control of impellent installation: the electronic tachometer and the thermoelectric indicator are established directly on instrument to a board in a cabin of the pilot.
The fuel system is placed in a special compartment, in a forward part of an impellent compartment and consists of a fuel tank, the fuel crane, the pipelines providing giving of fuel to the carburetor, the drain pipeline and a drainage tube.
Fuel structure: gasoline of mark АИ?95 and synthetic oil for 2-h-taktnyh engines mix up in the relation 50:1 accordingly.
Engine key parameters:
Capacity of a take-off mode (max.) (5 mines) 18,3 kw/25 h.p. (DIN)
Number of rpm of the engine at max. capacities of 6250 rpm
The maximum long capacity of 15,5 kw/21 h.p. (DIN)
Number of rpm of the engine max.durianion. on the earth of 5800 rpm
Number of rpm of the engine of small gas on the earth of 3000 rpm
Max. temperature of goals of the cylinder, not above 260 ° C (500 ° F)

THE AIR SCREW

Wooden 2 blades screw of the fixed step. diameter of the screw of 1180 mm.