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Tupolev snowmobile amphibian A-3
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Tupolev snowmobile amphibian A-3

Tupolev snowmobile amphibian A-3

 

Snowmobiling amphibian A-3 is a Soviet boat, which was made to move through the water, ice or snow-known designers Tupolev Design Bureau in the early 60-ies.

Snowmobiling A-3 were designed to transport goods and passengers on rivers with little depth. The main advantage of the device was that it could be used at any time of year. This machine is perfectly overcame snow, ice, and even off-road. In the spring, it is perfectly able to navigate the river, even on the melting or floating ice. Apparatus A-3 widely used for mail delivery or provision of medical care in remote regions, patrolling borders and conducting rescue operations difficult.

The history of the snowmobile amphibian A-3

Design The machine is the union of inventors, who manages the chief engineer GV Makhotkin. This group was created by the project snowmobiles in 1961 year. The test apparatus were made in the same year on the reservoir near Istrin. A year after the first test unit was transferred for trial operation, it took place in parallel with the completion and improvement of the A-3. After tests carried out by designers, it was decided to equip redanom production models, which greatly facilitates access to the planing machine. With 64 years it was launched serial production of the boat, and in the first months of 6 was built about a hundred copies.

Tupolev snowmobile amphibian A-3

The establishment of this amphibian was observed with high state awards. Thus, in 1965 year the project won an award ENEA and chief designer was awarded a gold medal. It was also noted, and the Tupolev Design Bureau, which has received the diploma of the first degree. These awards have been obtained for the excellent quality of boats, namely for the fact that it can be operated at any time of the year.

Amphibian A-3 was presented at exhibitions in many countries, and then received orders for its manufacture. These snowmobile manufactured at two aviation enterprises, and for all time was released about 800 units. A boat-3 widely and actively used until 90-ies, but some machines work to this day.

Design Featuresаerosani amphibian A-3

Hull full metal and is connected by means of rivets, it has a streamlined shape. The hull is divided into three compartments. The bow compartment is equipped with a heating system of the cabin, and then stored anchor. Furthermore, in this compartment can be placed load. The second compartment is represented by logging in which the driver's seat and passenger seat. The back part is made as a passenger compartment, which can be four passengers, or it is possible to transport the goods.

Tupolev snowmobile amphibian A-3

Feed cutter was equipped with a star-shaped aircraft engine. This engine had a displacement of the air cooling system and is driven by a pusher propeller. oil tank was installed to lubricate parts of the engine, but the engine was fitted and the system, which was called the "dry sump". The first models had 160-hp engine model M-11FR and later a boat equipped with engine type AI-14, which gave power to 260 horsepower.

With regard to the fuel system, it was represented by two fuel tanks, in which you can fill with 350 liters of gasoline. The tanks were placed on both sides of the cabin. This stock of fuel was enough to cover the distance in 500km on snow with cargo on board or 650 kg 200 km on the water with a cargo of 300 kg.

Аerosani amphibian A-3 characteristics:


Number of places 6
Engine Gasoline, jet, piston-M 14B.
Power 350 hp
Length 6110 mm
Width 2160 mm
Weight 2100 kg
Maximum speed on water 80 km / h
Maximum speed on snow 100 km / h.

 

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