DE1945716C3 - Catching tow method using tow ropes to pick up objects - Google Patents

Description

945

Buhelase the energy applied is lossless and is shown in FIG. 1 a SeiiteppseH

Maintaining a steady acceleration on λ β or the objects is transferable and thus that SÄumgen takes place without loss, with joint free hehdes Acceleration process results and demfolee the process in particular for bumpless C & towing gliders and heavy nbiekten is suitable.

This task will be carried out in the case of a

end object solved according to the invention in that

A «1 object initially at a corner point of the

nShoden designed to a triangle, largely

is attached ^ pEnharen towing cable, whose DIE the wandering of aer rough _B - '

™ corner opposite middle rope tow rope part 1 is one of «« «* Ϊγ for ^P Anfluirichtung d £ engine aircraft comparable or _l5? through two flour. dargei & WObSV _both and ^B other corner points, each with which the (™ f ™stens £ { _{on the} ¹ ^ FHhrunesseil are detachably connected, mark their. For the same purpose_kannaa> T ^e % ^ aS Erdboden also detachably hinged rope also three-part be formed, * d that each outer rope parts with individual rope parts expediently by C ⁵ P '., ^, ".. nrHneten guide ropes a blunt-

a. Furthermore, the tow rope is 1
and 8 'lifted off at an eccentric point 91 ^{in order to be able to detect it there by a Ρ &} 10 of the s3 sweeping at a low height. Be.rn ^ tick the move of the Fangvornch * ™>"tow rope 1 to one of the ^^

^ ^ n rSlZ ^^^^^ ^^^ n individual rope parts ^ fanäßgduren "" - SenkenSSeten guide ropes a stump- ₂₀ elements connected together w ± ^

tn «el, but the guide ropes at the ^^ J ^^

^th :. . ":" AnHiiorirhtuna pesehen - one ee- dem grasping the bcnieppsciis ι ν _c - "» ifino-

»Γη form an angle, but the guide ropes ^ ch behind - seen in the approach direction - a fair one bilateral extension of the middle Srhleppseils are that then by means of de, safety gear the middle part of the rope is detected to trigger the towing process, namely on one set the size of the tow rope, based on the first base point, to two equal partial lengths.

In order to establish a normal towing connection, it is useful that the The tow rope loosens from the guide ropes when the both joint elements are dragged up to the height of the two fixed points.

If two objects are to be picked up, it is proposed according to the invention that at each end of the rope of the largely inextensible tow rope, which is laid out stretched on the ground and running with its entire length transversely to the direction of approach of the motorized aircraft, an object is attached that is then secured by means of the safety device < the tow rope to trigger the towing process ^ For security reasons, an arrangement of objects towed one behind the other without special control measures during the acceleration process is achieved in that the tow rope is grasped off-center.

In the procedures outlined, be where a Combination of process steps is present, the respective coniiguration of the design of the Tow rope due to the interaction of all individual features of the respective procedure intended Effect achieved, namely that emc acceleration? of the objects takes place without loss or shock. the nigui g UCi j D "hp1iiop. out by means of

the gliders

sang without any special words

Behind

seen - in front of the middle rope, the glider is at the middle Se,

ruTdeTo \ 7kt; '; eriusi: "and takes place smoothly. The rungsseil 17 taw JJ ^" - ^ "gnehtung 2 ge-0 & let sfeh out of their rest position by means of ₅ 5 rangle ^^ th rope part 1 laid out and

the powered aircraft steadily oesciMcuuigv,. ·. In each case on a fesipunM i ₇ u. «.... _ .. ._ needs the altitude of the powered aircraft while steering. The Liren the guide cables 17 and 18 are from the entire Besehleunigungsvorgangcs or not the middle rope part 1 or the fixed points 19 and '' .....- ~ m "u .ToUnHprt tu. 6o 20 can at a certain, from the starting

for a long time the ropes are in a different position. For this purpose, the ends of the guide ropes 17 and 18 may be provided with open hooks which, if necessary, can be inserted into the joint elements 15, 16 or into the 65 fixed points 19, 20 intervene and through a loosen t · __ "" lu.ttätia nns of their anchoring,

of the entire Bcsi; iiituiii _B u .. ₆ .,. ". _ö _ not to be changed significantly.

Embodiments of the invention are explained in more detail below with reference to the drawing. The drawing shows in

F i g. 1 shows an arrangement for towing two gliders together and

2 shows an arrangement for dragging a catch around each joint point. »^ V _K v ..... _o

single glider. Release the stop automatically from its anchorage,

To the tow of two gliders 6 and 7 if between the powered airplane 3 and the sail *

5 6

aircraft 6 a (from the middle rope part 1 and the steering elements 15 or 16 of the then together mil

Auxiliary tow ropes 11, 12 formed) stretched the two auxiliary tow ropes 11 and 12 two

There is a towing connection. stretched rope strands forming rope part 1. For the

As finally from FIG. 2 can still be seen, he case that this separation does not take place, the hook

The guide ropes 17 and 18 each stretch un- 5 guide ropes 17 and 18 at the fixed points IS

ter such an obtuse angle to the middle or 20 automatically.

Rope part 1 that when pulling the middle rope part 1 In both arrangements (Fig. 1 and 2) can

(in the approach direction 2) at the aforementioned point 21 motorized aircraft 3 during the acceleration process

along which the approach direction 2 of the powered aircraft 3 gears fly close to the ground. The se-

marking straight lines the two end points io gelflugzeug 6 and 7 essentially smoothly on the

(Joint elements 15, 16) of the middle rope part along the speed of the powered aircraft 3 accelerated.

Move curved tracks 22 and 23, which at a dragging to a desired height and the

Point converge on this straight line. The towing connection is then released in

after being after the detection of the tow rope in a known manner.

or its middle part of the rope 1 (the safety catch calculations and tests have shown that

direction 10 of the powered aircraft 3) at point 21 that the method with the described arrangements

the rope ends 4 and 5 can be executed on curved tracks 22 and 23 respectively, with an acceleration dei

moves, the curvature of which is reached by the guide ropes 17 objects of about ί to 2 g. To a

or 18 is determined. The auxiliary costs are unacceptably high and especially for the pilots

Tow ropes 11 and 12 can simultaneously avoid acceleration that is damaging to one another

pivots and pulled in the towing direction. The consequence ropes are used when exceeding the

is a steady acceleration of the glider 6 called acceleration values tear. Through the

from the rest position. At the end of the use of inextensible ropes, it is possible to

acceleration process, the guide ropes release the kinetic energy of the powered aircraft without

17 and 18 automatically when unhooked from the additional lights. Forward delay.

1 sheet of drawings

Claims (4)

i 945 716 ι for starting gliders, it is known a patent claims: to use a powered aircraft flying close to the ground with a catch device that in flight has a 1. Fangscbleppverfanren by means of tow ropes attached and behind (essentially) in for picking up objects, in particular 5 approach direction designed tow rope on its for starting gliders, grasping the end of the rope constantly turned away from the object and forming a loop of acceleration from its rest position, and then opening the object out and using one with a tows a desired height (British patent safety gear provided motorized aircraft, writing 585 4ö7). characterized in that the ob- io With such a method, a high initial acceleration of the ground, designed to form a triangle at a corner point (14) of the other measure, can be achieved at a corner point (14), the object being largely inextensible after the tow rope has been detected. 1,11, 12) is not avoided (by the safety gear), whose corner point (14) is. For this reason, additional means, such as slip-on approach direction (2) of the motorized aircraft (3), stretchable ropes or the like are provided for fastening the middle rope part (1) overlying the tow, which runs under, the other two corner points (circumstances a steady acceleration of the object steering elements 15, 16) are each detachably connected to a guide part from the rest position through energy absorption (17 or 18), the other possible ones. However, this results in a loss of power during the loading end on the ground, also releasably articulated 20 acceleration process, which are (fixed points 19 and 20) that furthermore corresponds approximately to that which, for acceleration, outer rope parts (HL, 12) with the They gene of the object from the rest position on the assigned guide ropes (17 or 18) a speed of the powered aircraft is required. The method can therefore only be carried out with motorized aircraft ropes (17, 18) behind you - in the approach direction - 25 greater power,
device (2) seen - an imaginary one on both sides Attention (10) the middle part of the rope (1) for triggering the increasing object (towing target) is detected in the length of the towing forefcings, namely at _3o direction on the ground laid out stretchable one point (21), which the towing rope (1,11, 12) , Tow rope on a loop designed as a loop and measured in relation to the first corner point (14) to two ends facing away from the object of the same partial length from the powered aircraft. _to capture and then lift off the ground, 2. Towing method using tow ropes before it overflies the object. With such a thing Picking up objects, in particular using the method known as "banner drag" Starting of gliders, under steady ren must the powered airplane after the capture of the Acceleration of the same from its rest position tow rope gain steeply in height before on the pulling out and using a with an object; otherwise would The safety gear fitted with a powered aircraft, the object when the tow rope is stretched on the characterized in that 40 grind the ground at each end of the rope. When tightening the object is (4,5) of the stretched out on the ground- the tow rope is not stretched, but after a th and curved with its entire length transversely to the chain line, with the powered aircraft flying in the direction of flight (2) of the powered aircraft (3) is already well beyond the pick-up point. fenden, largely inextensible tow rope (1) This configuration means that the Beje an object (6 or 7) is attached so that the object accelerates during the exposure by means of the safety device (10) the process reaches a peak value which is significant The tow rope (1) for triggering the towing process is above the mean acceleration value. It is there is detected. to be expected that the stretchable tow rope at 3. Catching towing method according to claim 1, in which its stretched configuration is assumed to be through marked that the tow rope 50 lengthens next and when it reaches the largest possible (1.11, 12) from the guide ropes (17, 18), accelerate the object with a jerk if it is stretched when the two joint elements (15 and 16) are up. Even by using an inelastic At the height of the two fixed points (19 and 20), a tow rope of this kind can be used as an "accelerator tow." are. movement jolt «do not avoid; this is then practical 4. Catching towing method according to claim 2, only brought forward in time. The known procedure characterized in that the tow rope (1) thus does not allow a steady acceleration of a is detected off-center. Object out of its rest position and is both for this reason as well as because of the required —_—. a relatively large height difference between 60 the powered aircraft and the object to be towed The invention relates to a towing method jekt (at the time of its recording) for a pushing means towing ropes for picking up objects, free towing of heavy objects, in particular for starting gliders, not suitable for gliders,
steady acceleration of the same from its position of rest. The invention is based on the object of creating a motorized aircraft that is provided with a device and using a motorized aircraft of the type mentioned at the beginning. which avoids the disadvantages described above, To pick up from on the ground so that by the powered aircraft for advice Objects without their own drive, for example accelerating one or more objects out of the