SU141788A1 - Aquaplan for scuba diving - Google Patents

Description

Aquaplanes for scuba diving, consisting of two planes perpendicularly intersecting in the middle, of which the horizontal plane — the stabilizer — carries two streamy-shaped floats on the lateral edges and has a leading edge pointed at an angle and angular.

A disadvantage of the known aquaplanes is that they do not provide accurate movement of the swimmer under water at a certain rate.

To eliminate this drawback, it is proposed to install a compass, a depth gauge and an instrument indicating the distance or time on the stabilizer. On the upper part of the vertical plane, the keel, it is proposed to make a straight horizontal cut, which serves as a viewfinder for directing the target.

The drawing shows the scheme of the proposed aquaplan.

An aquaplan consists of a stabilizer / and a kil 2 - two mutually perpendicular planes intersecting in the middle.

On the side edges of the stabilizer 1, two floaters 3 are streamlined, made of foam, to give the aquaplan some positive buoyancy. This facilitates the management and work with aquaplan.

In order to ensure the accuracy of the movement of the underwater swimmer at a predetermined course, the keel 2 is divided by stabilizer 1 into two unequal parts, in which the large is under the stabilizer / and the smaller one under it and serves as a sighting device. For this purpose, a straight horizontal slice is made at the top of the kil 2.

The accuracy of movement for a given course is also provided by a compass 4, a depth gauge 5, and an instrument indicating the distance traveled or time (not shown).

№ 141788-2

Driving the target, the keel 2 of the aquaplan is precisely set in the sug-W direction, and the corresponding reading of the compass 4 indicates the heading angle .;

. In order not to limit the view of the swimmer using the offer; ykvapla1; rm (especially when swimming near the bottom), the stabilizer is molded out of transparent plastic, for example organic fiber. .}

Yl jtteJtieH-He plexiglass (or other smooth plastic) also reduces the resistance to movement of an aquaplan swimmer.

In terms of terms, the stabilizer has a swept shape, which makes it possible to increase the area of the vertical tail (kil) due to its length. The vertical tail (keel) has a shape close to rectangular.

In the working position, the swimmer-submariner holds an aquaplan in front of him, clasping the front edge of the stabilizer with his hands, and, following the readings of the compass, the depth gauge and the instrument indicating the distance traveled, guides the aquaplan in the right direction. While working with flippers, he ensures himself an appropriate movement along a given course, benefiting from the upper horizontal cut kil as the sighting tool.

A prototype of the proposed device was used by submariners at the All-Union competitions in 1960 and showed satisfactory results.

Subject invention

An aquaplan of a scuba diving day, consisting of two planes perpendicularly intersecting in the middle, the horizontal plane — the stabilizer has an anterior edge pointed at an angle, and streamlined floats are fixed on the side edges in order to ensure accurate movement. swimmer under water at a certain course, a compass, a depth gauge, a device indicating the distance or time passed are installed on the stabilizer, and a straight, horizontal center is made on the top of the vertical plane — the keel Serving the target sighting direction.