“STAYERS” BLUE AQUADROME

We offer modelers design developed and successfully tested Czechoslovak athletes. The basis for its design was the model class F1E, with which the author is an engineer Ow. Valens was in the recent past, the champion of Czechoslovakia. New electrolyser, named “Mamba” (the African name of a small moving extremely poisonous snakes), helped Czechoslovak athlete to become a gold medalist of the national championship and in the class FSR. At the same VL. Valenta believes that despite the specialization of a new model for long races, it has preserved the “hereditary information” and can be successfully used in the RC electric class F1E. It is enough just to increase the number of batteries and to install a more powerful motor. Basically the same option (FSR) applied a set of twenty Nickel-cadmium batteries of the Japanese firm “Tamiya” and the engine the “Mabuchi 540”.

 

Celebarty case “train” is assembled from prepared elements on flat Board-the slipway the keel up. The Central part of the bottom plating outside after vyshkurivaetsya glued on liquid epoxy resin with a thin fiberglass with a specific weight of 110 r/m2, and the amount of binder should be minimized. The surface of the bottom should not be too smooth; after curing the resin impregnating the balsa outer skin plates, the structure of the fabric comes through clearly. So achieve turbulent flow around the bottom of the glider, which is important to achieve high speeds. The rest of the surface upholstered in long-fibre paper that strengthen the soft balsa surface and protects the wood from swelling.

 

The original longitudinal sponsons are mounted Reiki byshooting of solid wood of triangular cross-section, and on side cheeks — balsa rails with cross section 10 x 10 mm. the Latter act as reliable protection of the extremely lightweight of the hull when hitting fiberglass hard shell models of the rivals and additionally increases the effective width of the planing surface at low speeds.

 

The dimensions of the stern tube is not critical. You can use preset outer diameter 4-5 mm, and internal — from 3 to 3.5 mm. the Propeller shaft is made of high quality steel wire Ø 2 mm, if necessary, the workpiece is carefully aligned. With the propeller shaft end pesetas soldered adapter with external M4 thread. Despite the fact that the axis of the propeller shaft coincides with the axis of the armature of the motor, between them, necessarily introduced a small universal joint. In the stern tube shaft is mounted on two Teflon bushings-bearings. The cavity of the deadwood transmisiones is filled with oil to prevent water penetration inside the case.

 

The power batteries are divided into two prosekli that are placed on the bottom of the casing and displacement protection in a light foam blocks. For connections of power circuits (battery switch — engine) uses a flexible cable with a cross section of conductor not less than 2.5 mm² in secure isolation.

 

To control the model can fit any instrument with two steering servos. Receiver antenna is shortened to 100 mm, and its end is equipped with microstockers. The nest mate is worked on the case, as both holder steel whip antenna wire Ø 0,5 mm.

 

The propeller is selected depending on the running characteristics of the motor. For motor “Mabuchi 540”, powered by 10-15 Nickel-cadmium batteries, and conditions of a long race is well suited screw company “Graup-ner” type R35 or the other (as well as a homemade screw) Ø 35 mm and a pitch of about 30 mm.

 

 

RC sudomodel motor:

 

 

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