Plane Ar-2
Plane Ar-2

Plane Ar-2

Ar-2 - Soviet twin-engine dive bomber developed from all-metal construction. Created in TsAGI led by AA Arkhangelsk-based SB bomber. The plane was created as an attempt to modernize the Security Council through its alteration in the dive bomber. It was established 2 engine M-105R. In 1939, the first flight was made on the Ar-2.

As for the combat capabilities, according to him, he did not concede bomber Pe-2, but surpassed it by placing bombs in the fuselage, as well as bomb load. Another advantage is its palpable presence of machine output bombs.

In 1940-1941 years. aircraft built in series. Total of about 200 machines were produced. In the first year of World War II it was used for attacks against neighbor and rear of the enemy troops on the ground.

Design and equipment Ar-2:

· The nose of the aircraft MMN "F-1", which demonstrates good aerodynamics on tests;

· Motors got better quality hoods;

· The sheathing between the fourth and eighth frames is made of balinit plywood, which was glued to the five, six, and seven wooden parts of the frame with adhesive VIM;

· Motors have better hoods;

· Install sub-motor frames of a higher quality design;

· Used in the construction of the machine water radiators of the finned-tubular type;

· A more advanced oil supply system was installed - one air-oil and water-oil radiator for each engine;

· Screws with variable pitch VISH-22E are installed;

· Improved oil and gas tanks, the capacity of each is 330 liters;

· Automatic dive exit;

· For better aiming during bombing without a dive, we installed the OPB-1M and NKPB-3 sights;

· Gratings are installed under the planes on hydraulic control;

· For better aiming of bombs on a target during a dive, an artificial horizon, PBP-1 and an overload signaling device were installed.

Weapons SB-RK:

  • Bomb load - 1 ton (1,5 ton - maximum). FAB-500 - up to three units or fab-250 to four units in swordplay or twelve units to one hundred kilograms of horizontal bombing.
  • ShKAS machine gun with a mechanical eye in a ball mounted on the nose, the calculation of ammunition for five hundred shots.
  • Machine gun with ShKAS klimmatornym sight of K-8T in the rear installation TCC-1. Ammunition - 1000 shots.
  • Machine gun ShKAS with an eye-type OP-2L. Ammunition - six hundred shots.
  • Chemical weapons are represented by two VAP-500 (up to 1 thousand. Kg) and two types of pouring UHAP-500 (up to 100 kg) universal type. The ability to use any mixtures and substances, standing on the arms.

After the first test experts have identified fundamental flaws:

  • oil and water temperature in flight is not less than 95 degrees;
  • insufficient longitudinal stability.

On airplanes AR-2 continued to establish modernized samples of aggregates and equipment. The results of the latest state testing machine were as follows:

  • weight - 6,6 tons;
  • Range for the two arms of the FAB-on 250 390 km per hour speed, and at the height of km 5 - 1000 km;
  • altitude ceiling - 10 km;
  • climb 5 km - approximately 7 minutes;
  • roll down the runway - 340 m;
  • maximum flight speed - 475 kilometers per hour - was reached at the height of 4,7 km.

AR-2 Tests have shown that to continue flying with one engine zadrosselivannym quite possible.

The main disadvantage of the machine - the creation of disadvantages rotary-wing groups. Due to the destruction of the engine systems they test often fails. Small limits had a cooling system, in the winter to use the machine was quite problematic. It was not possible to merge the normal water vodoradiatorov. Overheating of the water and the oil was left unresolved. It is worth noting that in the future in KB A. Archangel yet perfected helical band on the plane.

The release of the AP-2 was discontinued in 1941 in favor of the mass production of the Pe-2. And although many leaders and specialists of the fleet and aviation considered the AR-2 as the main dive-type bomber, and the Pe-2 as a fast fighter for its long-range escort, everything turned out the opposite - with the subsequent stoppage of the Ap-2 release.