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Date: Sep 1, 2010
Polish helicopters
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Tanski Helicopter from 1907...



During 1905-07 Tanski concentrated on the development of a helicopter. After tests with models, which were used to study the stability and lift values of helicopter-type designs, he began construction of a full-size helicopter. This was built in his workshop at Mazowiecka Street and completed in 1907. It consisted of a metal-tube mast composed of two co-axial shafts to which two two-blade rotors, rotating in opposite directions and set one above the other, were fixed, a very progressive configuration by the then standards (on the other hand the machine did not possess any means of control and was designed simply to rise and descend vertically). The rotor blades, with leading-edge limewood spars and osier ribs, were covered with silk gauze pasted over with tissue-paper on the upper surface only. Each blade was braced with two struts to the metal mast above. The 'pilot' was attached to the mast by a special belt harness and operated a hand-driven gearbox propelling the rotors. The approximate overall span of each rotor was 8m and the overall height of the mast (including its harness extension fixture) 2m.

Tests indicated that the pilot's muscle power gave a maximum lift of only about 12kg which was not nearly sufficient to raise the machine and its operator. In 1909 Tanski adapted the machine for a 2.5hp Anzani two-cylinder vee engine, but this powerplant also proved inadequate and, according to the designer, the cylinders of the engine became red hot after a short while because of the complete lack of cooling. Later, Tanski was thinking of installing a small, light but more powerful engine, and in the autumn of 1910 he asked his son, who was in France, to look for a suitable powerplant. His helicopter survived as a museum piece until the last war and was displayed at the Lwow Aviation Exhibition in 1938.

During the inter-war era Tanski returned to the problem of vertical llight and in 1927 built and tested four experimental helicopter models.

This work, however, did not seem to offer a sound basis for a practical full-size machine and appeared to be limited only to the study of a primitive rotor concept. In 1934 a special commission of I.B.T.L. (The Institute of Aviation Technical Research) investigating his helicopter proposals said in an official statement: 'The works of Mr C.Tanski from the period of the beginnings of world aviation, because of the era when they were accomplished and their successful form, are today of great historic importance for Poles. They can be regarded as the first successful efforts in corresponding fields in world aviation. Mr Tanski's collaboration in the field of helicopters now offered would be of no use at the present time."

Early in 1939 Tanski again proposed undertaking work on an experimental helicopter and asked L.O.P.P. (The League of Air and Anti-gas Defence) for a subsidy for the project. In April 1939. the L.O.P.P. Central Committee replied that it could not grant such a subsidy before examination and approval of detailed calculations and project design drawings, but these were never submitted.


 

Jerzy B. Cynk "Polish Aircraft 1893-1939", 1971



-- Edited by Stingray on Wednesday 11th of June 2014 11:23:18 PM

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Date: Sep 2, 2010
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Zurkowski ZR.1

A homebuilt helicopter made in Poland. Not flown. Preserved in Newark Aircraft Museum, England.



-- Edited by Stingray on Wednesday 11th of June 2014 11:23:56 PM

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Date: Oct 2, 2010
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Matula Liliput ultralight helicopter with Ramjets, from 1957. No further info or images.

Another unknown aircraft to me is the Kaminski Gigant 2 amateur-built ramjet helicopter, which never flew.


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555


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Date: Oct 9, 2010
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PZL S-3 experimental tilt-wing aircraft



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In 1952-1953 a study of a helicopter designated GIL-3 (where "GIL" stood for "G�wny Instytut Lotnictwa" or "Main Aviation Institute") was prepared. It was to have an engine developing 870 shp (the type had not been specified) and its payload should have been around 800 kg. No further works were undertaken however and the design team led by Bronisaw urakowski concentrated on a single-rotor helicopter project, the GIL-4 that later became the B-4 uk.
 
 
Source: Petrus from the Secret Projects Forum.


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555


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The Swidnik SM-6 was a light helicopter project based on SM-4 Latka, fitted with a GTD-350 turboshaft engine.
 
 

In place of [the SM-4T] project, the Design Office was given the objective to develop a predesign for a new, light helicopter that would be fit for a single GTD-350 turboshaft. The helicopter predesign was developed between 1964 and 1965 originally under designation SM-6. Unfortunately, this project foundered due to restructure of the company and foundation of the Helicopter Testing Plant.



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Date: Oct 18, 2010
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Swidinik BZ-2 (Gil-2) and BZ-3 (Gil-3) were two-seat light helicopters developed from the Gil-1 (BZ-1).


-- Edited by Leela25 on Monday 18th of October 2010 11:19:00 PM



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555


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1) SM-4 with WN-6 piston engine.


2) SM-5 Jaszczurka (aka: Mi-2.1.1) - Single-engine helicopter projects designed at widnik under the misleading Mi-2.1 designation to convince the Soviets that widnik worked on a Mi-2 single-engine derivative, and not indigenous projects. Mockup built sometime between 1970 and 1972.

3) SM-7 S�jka -
two-seat helicopter designed around 1977.


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Date: Mar 22, 2012
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555 wrote:

2) SM-5 Jaszczurka (aka: Mi-2.1.1) - Single-engine helicopter projects designed at widnik under the misleading Mi-2.1 designation to convince the Soviets that widnik worked on a Mi-2 single-engine derivative, and not indigenous projects. Mockup built sometime between 1970 and 1972.


 

More from Petrus:

Below you'll find some photos of Jaszczurka's mock-up, which was built probably sometime in the beginning of the 1970s (a brochure with the photos and other info on the project was dated of 1972) as well as 3V drawings.

Specifications were to be as follow:
Length 9.40 m
Length with turning rotors 12.94 m
Height 2.88  m
Main rotor diameter 10.8 m 
No. of rotor blades 4
Tail rotor diameter 2.6 m
No. of rotor blades 2

Empty weight 1150 kg
All-Up Weight 2000 kg

Max. Speed 270 kph
Ceiling 8000 m
Range above 400 km

Engine TWD-850 1 x 625 shp

Accomodation:
1 pilot + 3 or 4 passengers
or 
1 pilot + 2 wounded on stretchers + 1 medical attendant

or 1 pilot + 600 kg of cargo

According to documents on the project, which survived, the TWD-850 engines were considered at that time as a powerplant of a contemplated twin-engined helicopter. Probably it could have been a first vision of what then became the W-3 Sokół. The TWD-850 were of Soviet origin, they were to be used in An-14, Be-30 and An-28, but then were replaced by the TWD-10, whose helicopter version developed in Poland as the PZL-10W eventually was mounted in the W-3 Sokół.

Best regards,
Piotr



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Date: Mar 22, 2012
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Note the original drawings depict it to use tricycle-type wheeled landing gear while the mockup has skids, giving it the impression of a UH-1 at first glance.



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Date: Jul 1, 2012
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Hi all,

found this nice Helicopter by Andrzej Borys

http://www.piotrp.de/AMATORSKIE/dheli.htm

 

Servus Maveric 

 



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Date: Jul 1, 2012
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Thanks, Maveric! Good find.

The link has also lead me to some more rare rotorcraft I hope to add later today.



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Artist impression of the GIL-3:



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New User

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Date: Apr 10, 2013
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Stingray wrote:

Matula Liliput ultralight helicopter with Ramjets, from 1957. No further info or images.

Another unknown aircraft to me is the Kaminski Gigant 2 amateur-built ramjet helicopter, which never flew.

 Here , the Gigant , from Royal Air Force Flying Review , June 1957 .

About the A.MATULA LILIPUT , in the April 1957 issue :   two blades (17ft81/2in. diameter)rotor with a 98 lb ramjet at each tip . 353 pound loaded ,5.5 imp.gall fuel .



-- Edited by Richard B on Wednesday 10th of April 2013 10:26:18 AM

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Date: Jul 12, 2013
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More pics of the Zurkowski ZR.1.



-- Edited by VinceJ on Saturday 13th of July 2013 04:39:35 AM

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Date: Jul 14, 2013
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I like the door lock in 3rd picture, simple but very practical.

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Date: Nov 18, 2015
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How many poles does it take to fly a Polish helicopter?

3. 1 to turn the cranks and two tho throw him in the air.



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The ramjet engines on the Kaminski Gigant 2 have to all be at the tips of the rotor blades. To be efficient a ramjet has to move at near supersonic speeds. So this helicopter would also need a powerful motor that would turn the rotor so fast the speed of the air surrounding the ramjet relative to the engine would be near supersonic. This would make the air flowing through the ramjet near supersonic.

The effect of the air being rammed into the engine at such a high speed would be a compressed air-fuel mixture that would not be unlike a mixture that had been compressed by a piston during the compression stroke.

n.b. This is what happend on a Hiller Hornet and the aircraft flew.



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Thanks for your informative insight Jasper, but the mechanics behind ramjet technology is not uncommon knowledge around these parts.



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Date: Nov 19, 2015
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Jasper wrote:

This picture illustrates my concept of a disk shaped rotorcraft that appears to be a UFO.

The disc could be a housing for a radar antenna, but do we know that for sure?  the 707 AWACs that is carrying it is traveling at near supersonic speed.


 Yes we do know for sure because we have the brainpower  to properly research subjects before making wild uneducated theories that have no basis in reality. Seriously, quit peddling your UFO BS and keep to the topic of discussion.



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Deleted those two posts from Jasper that had absolutely no business being in here. Jasper, please review the forum rules before posting. Thanks.



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I'm Sorry, I should not have put the polish joke in a post unless I was sure that nobody here was Polish.



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Don't sweat it, humor is fine. Just remember to not stray so off-topic as in your last two posts here. AWACS do not belong in a thread about Polish helicopter development. Thanks.



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My interest in unknown rotorcraft started when my grandfather told me about when he worked for Gyrodyne and they built a small co-axial helicopter that was remote controlled. This was carried on a destroyer and the sailors could use it to find an enemy submarine and launch a torpedo.This was back in the 1960s. Now I see they are using drones to fight the Arabs. So it seems that little helicopter factory on Long Island was way ahead of its time.


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