Kamov is a Russian rotor-winged aircraft manufacturing company that was founded by Nikolai Kamov, who started building his first rotor-winged aircraft in 1929, together with N. Skrzhinsky.  Up to the 1940s, they created more autogyros, including the A-7-3, the only armed one in the world that saw (limited) combat action.

Since then, the Kamov Design Bureau has specialised in compact helicopters of coaxial rotor design, suitable for naval service and high-speed operations.

Ka-226

The Kamov Ka-226 is a small, twin-engined Russian utility helicopter. It features an interchangeable mission pod, rather than a conventional cabin, allowing the use of various accommodation or equipment configurations. The Ka-226 entered service in 2002.

Ka-32

A not uncommon sight outside of the former Eastern Bloc, the Kamov Ka32 (NATO reporting name `HelixC') is a multi purpose utility helicopter based upon the military Ka27.

The Ka-32 helicopter is a development of the Ka-27PS, designed specifically for civilian use, taking into account the successful operation of the Ka-25 and Ka-27 from the deck of ships. Initially, as the main purpose of the helicopter was supposed to use it for ice reconnaissance in extreme Arctic conditions, day and night, but later it was decided to develop the helicopter for all-weather multi-purpose, for search and rescue, transport, crane operations during installation of equipment, transporting packages of valuable wood in the absence of roads, patrol and other purposes.

The helicopter was decided to equip with the perfect flight-navigation system with on-board computer, surveillance radar and special equipment, anti-icing system. When the ice reconnaissance is necessary to have a maximum flight duration 4.5ch, while transportation and crane work load required in the cockpit of 4m and 5m on the external load, range from 3 tons in the cabin cargo 300 km, cruising speed 220-230km / h.

The absence of a helicopter anti-submarine weapons and the search equipment and related systems has allowed the use of internal volume to accommodate fuel tanks and various equipment for civilian use and has provided increased lift helicopter.

The Ka-32 helicopter is successfully used in many continents and in all climatic zones. 
These helicopters are successfully operated in Canada, Malaysia, Algeria, Brazil, Switzerland, Korea and other countries.
Coaxial helicopters have several advantages over helicopters of the classical scheme, due to the peculiarities of the layout - the lack of a tail rotor.

The absence of a tail rotor greatly reduces the overall dimensions of the helicopter, as well as its weight, simplifies the design of directional control. In addition, the tail rotor uses 10-12% of engine power. In this scheme the coaxial output is used to create lift, then there is power available coaxial helicopter is 10-12% higher than a similar helicopter classical scheme. Control forces and moments helicopter coaxial system are coaxial propellers, which determines its high controllability and maneuverability, and lack of tail rotor - low limits, especially at low speeds. Since the angular velocity in hovering helicopter Mi - 8 - 12 seconds, the Mi-24 - 30 sec, and Ka-32 have no such restrictions.

This advantage of coaxial helicopters is especially pronounced when operating with external cargo suspension, in construction works, maintenance of drilling rigs, loading and unloading of ships with the raid, as well as for different kinds of search and rescue operations.

Duplication of the main systems for high safety in any part of the flight. Twin-engine propulsion system allows to continue level flight, perform a safe landing, landing in the area rejected takeoff or continue the take-off weight at 11,000 kg. To ensure that ditching and subsequent escape from the helicopter after landing on the water by a helicopter mounted ballonets.

It does not guarantee high comfort for 13 passengers (or 9 people in the hospital version), in a fairly small inside, but can pick up and take to five tons of oversized cargo on an external sling.

Thanks to the coaxial arrangement of the screws, its limitations on the side and a following wind - 10 m / s (for the Mi-8T: fair - 3 m / s, right - 5 m / s on the left - 8 m / s, which is associated with loss of control) . In addition, the excess of this limit does not lead to loss of control, as the helicopter itself is set against the wind. This is especially important when flying in the mountains, with frequent changes of direction and wind speed, since the Ka-32 can fly up, land and work with wind up to 20 meters per second, which is inaccessible to any other model. 

The presence of anti-icing system guarantees the successful execution of tasks in the rain, snow, fog, icing, to a temperature of minus 23 degrees C, in limited circumstances, when the storm winds, and at high altitudes where high accuracy is required. Run engine helicopter does not require a hospital and airport equipment provided to a height of 3000 meters in the range of ambient air temperatures from -40 to + 40 deg C 

The Ka-32 is equipped with a powerful self-propelled device, which allows to perform different operations in automatic mode: hovering over land and water, to fly on the route, return to any point of it, landing on different trajectories. When installing the sprinkler system (depending on the version), it is able to deal with fires, pouring over every 3 to 5 tons of water. When equipped with a water cannon, the helicopter is able to extinguish pockets of burning points. Moreover, diversion of water from open reservoirs is carried out, hovering over them. Emergency hoist allows lifting cargo up to 300 pounds, without making a stop.

Continuing work is underway to improve helicopter design and expand its capabilities. With subsequent upgrades, the replacement engine and support system, the weight lifted load will increase to 7 tons.

Construction
Twin-screw coaxial helicopter with two CCD and quadrupodal chassis is distinguished by high specific power and sweeps away a large load area - 60 kg / m 2.

Semi-monocoque fuselage, is made mostly of aluminum alloys, with a double cabin crew in the bow. In the cargo compartment dimensions 01.03 x 4.52 x 1.32m, which is separated from the bulkhead deck, located 16 folding seats along the sides. Access to the cockpit via sliding doors on both sides, in the cargo compartment - through the sliding door size 1.2 x 1.2m from the left side. External cargo system designed for load 5000kg is set in the cargo cabin and is equipped with a weighing device.

Coaxial rotors, three-lobed, with hinged blades and a system of folding. The blades of rectangular shape in plan, have a chord of 0.48m and a modified NACA profile 230. Blade spar is made from the CM on the basis of fiberglass-reinforced carbon fiber spar attached to the 13 sections layered construction with honeycomb core. The blades are equipped with adjustable trim tabs in the parking lot. The main rotor hub made of a steel titan with anti-corrosive treatment, equipped with adjustable dampers and damping systems consisting of two weights in the butt blades lower screws are configured so that their oscillations were antiphase vibrations of the blades. With this level of vibration does not exceed the allowable range of speeds throughout the flight.

The power plant consists of two CCD with free turbine TVZ-117 take-off power on 1618kVt with automatic control system that provides start engines and their stable operation in all modes. Supervise the work of engines by using a pointer mode on the dashboard. In case of failure of automation provides manual control of motors. Engine starting from the auxiliary Ershova installation.

The main gear planetary, two-stage, with two freewheel and brake rotor, equipped with a cooling fan and oil cooler with.

The fuel system consists of 10 fuel tanks with total capacity of 3450l, united in the left and right groups. Under the cabin floor are 8 fuel tanks, two of which are damped when installed in the cockpit of external suspension. Two tanks are located outside in containers on the sides of the fuselage. In each group of tanks available supply tank, which receives fuel from other tanks. Fuel distribution system provides for supplying fuel to one engine from each of the tanks and to the two engines of the same group. In consumable tanks installed on the two pumps operating in parallel, and the remaining tanks - one pump. Filling the helicopter made a filler-fitting or centralized refueling under pressure.

Electrical system AC three-phase, has two independent generator that can operate in parallel and separately with the converters and batteries to the DC circuit. Electrical heating and air intakes socks blades powered by a three-phase alternating current, designed for continuous operation during the entire flight.

Equipment. The flight-navigation complex comprises BEVM helicopter, autopilot, Doppler speed and drift, radio altimeter, which provides automatic stabilization of flight modes and automated operation, including a flight on a given route and the automatic approach and hovering at a height of 25m above the landing site. Equipment Package Ka-32A ensures that the instrument flight during the day and night, and adverse weather conditions, the Ka-32S is used as surveillance radar. Used on-board recording system flight data. Maybe a rescue hoist with lifting capacity 300kg. Ka-32K-by-wire flight control system and automatic damping load on the outer rope sling.