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TU-85 BARGE - 85/1 Design

After the engines, the second most important line of work to ensure the receipt of the required data of the aircraft "85", along with the improvement of the power plant, was the improvement of its aerodynamics and measures to improve the weight reduction. The main activities were aimed at improving the aerodynamics and design of the wing. Already by the beginning of 1949 TsAGI was able to provide, based on the tests of two M-85 and M-64/85 models (the model of the airplane "85" with a wing from "64" and nacelles under the ASh-2K) characteristics for aerodynamic calculation of preliminary estimation of stability and controllability of a full-scale aircraft. Subsequently, aerodynamic studies were carried out at TsAGI on Tu-85 models to assess the operation of various variants of wing mechanization (flaps) and the behavior of the aircraft in various modes.

The layout of the fuselage and the placement of the crew, armament and equipment in the '85 'remained essentially the same as those of the '80', except that the front and rear bomb compartments were lengthened to provide a suspension in each of them one FAB-9000 high-explosive bomb.

To prevent icing in flight, the socks of the wing and tail unit, in contrast to the aircraft "80", were equipped with an electric heating system. Electric heating was used to heat the frontal parts of the engine hoods, the glass cabin crew. The propeller blades had a liquid anti-icing system.

The systems of radio engineering, radio navigation and radiocommunication equipment were modernized and the most modern units were introduced: the radiocommunications 1RSB-70, RSB-D and RSIU-3, the SPU-14 intercom; radio altimeters PB-2 and PB-10; automatic radio compass ARK-5; aircraft parts of the radio navigation systems "Meridian" and "Mainland", etc. Panoramic radar of the type "Cobalt" was replaced by the radar "Rubidium-M" ("Rubidium M-85").

The composition of the on-board photographic equipment was updated: to monitor the results of bombing and passing photo reconnaissance, AFA-BA / 40 cameras and one of three AFA-33/50 or AFA-33/75 or AFA-33/100 aerial cameras were installed for scheduled aerial photography, instead of which, during night flights, NAFA-3S / 50 could be installed.