IFIL-Reghin RG-4 Pionier

Last updated
RG-4 Pionier
Role Primary glider
National origin Romania
ManufacturerIntreprinderea Forestierǎ di Industrializare a Lemnului (FILI)
DesignerVladimir Novitchi
First flight1 May 1954
Number built50

The IFIL-Reghin RG-4 Pionier or CIL Reghin RG-4 Pionier was a Romanian single seat primary glider built in the 1950s. Fifty were produced.

Contents

Design and development

The RG-4 Pionier was a single seat primary glider built in Romania in the 1950s, though very much in the 1930s Zögling tradition with the pilot exposed on a simple beam fuselage under the leading edge of a high wing. This wing was supported over the fuselage beam on a set of N-form, cross braced struts and by a pair of parallel lift struts on each side to the wing at about one third span. The wing, which was wood framed, was mounted with 2.8° of dihedral, had parallel chord and was unswept. There were plain, fabric covered ailerons out to the wing tips. [1]

The RG-4 landed on a fixed monowheel under the wing trailing edge, with a skid that reached from the nose to under mid chord, assisted by a small tailskid. It had a conventional empennage with a parallel chord tailplane and elevators, similar in plan to the wing, mounted in front of the narrow fin, held above the fuselage on a short step and braced from below with a single strut on each side. Despite its forward position the elevators still required an elevator cut-out for rudder movement. As well as carrying the broad, near triangular rudder, the fin also anchored a pair of bracing wires on each side to reduce horizontal flexing of the fuselage beam. One of these ran to the wing underside, the other to the fuselage under the wing. [1]

The RG-4 Pionier was first flown on 1 May 1954. A batch of fifty was produced. [1]

Specifications

Data from Sailplanes of the World, pp.210-11 [1]

General characteristics

Performance

Related Research Articles

Slingsby Prefect

The Slingsby T.30 Prefect is a 1948 British modernisation of the 1932 single-seat Grunau Baby glider. About 53 were built for civil and military training purposes.

The Slingsby Type 26 Kite 2 was a post World War II development of the Slingsby Kite, a single seat medium performance sailplane. It sold in small numbers.

The Czerwiński Sparrow, sometimes known as the de Havilland Canada glider, was a single seat glider, designed and built by a group of de Haviiland engineers in Canada in 1942. It was intended to popularise gliding and be suitable for both basic training and thermal soaring.

The Davis-Costin Condor was a conventional all-wood, tandem-seat sailplane built in the United Kingdom in the 1950s. Only one was constructed; it was later rebuilt with a longer fuselage and other detailed alterations as the Condor 2.

The Stedman TS-1 City of Leeds was a parasol wing wooden sailplane, seating two in tandem open cockpits. Only one was built, by its designer in 1934; it remained active until the outbreak of World War II.

The Horikawa H-22B-3 is a simple, open frame, two seat primary trainer glider designed and built in Japan in the 1950s.

Lommatzsch FES-530 Lehrmeister

The Lommatzsch FES-530 Lehrmeister is a two-seat trainer glider that was built in the German Democratic Republic in the 1950s. Over 300 were built, with a mixture of 17 m and 15 m spans.

The Teichfuss Astore was an Italian Intermediate single-seat trainer glider designed by Luigi Teichfuss and flown in 1936. Two were built.

The Teichfuss Allievo Pavullo was an Italian single seat open frame primary glider, designed by Luigi Teichfuss of Pavullo and first flown in 1940. It was sold in two versions, strut and cable braced. A single two seat variant was also built.

Scheibe Specht

The Scheibe Specht is a tandem seat training glider produced in Germany in the early 1950s. More than fifty were built.

The IIL IS-10 was a high-performance, single-seat glider, designed and built in Romania in the early 1960s. It was the first Romanian aircraft to use laminar flow airfoils.

The IIL IS-11 was an aerobatic, single seat glider, designed and built in Romania in 1959. It was built in small numbers.

The IIL IS-12 was a two-seat glider, designed and built in Romania in 1960. It had a wooden wing but a metal fuselage and was constructed in parallel with the all-wood IS-13 for comparative tests. It was later followed by the IS-13a, a version with an all-metal wing.

The IFIL-Reghin RG-5 Pescăruș or CIL Reghin RG-5 Pescăruș was a Romanian single seat sailplane built in the 1950s. Twenty six were constructed for gliding clubs.

Caproni Ca.95

The Caproni Ca.95 was a large, three engine, long range, heavy bomber prototype built in Italy in 1929. It could carry a 1,600 kg (3,500 lb) bomb load and had three defensive gun positions. Only one was built.

The Peyret Avionette was a low power, single seat French monoplane which won several first-place prizes at the Congrès Experimental contest of 1923.

Rubik R-03 Szittya I

The Rubik R-03 Szittya I was a Hungarian single-seat sailplane flown in the late 1930s. The design was developed through three improving variants. though only one of each was built.

The Jancsó-Szokolay M22 was a Hungarian single-seat sailplane first flown in 1937. Twenty were built and the type set several national records. Some remained in service up to about 1953.

The Oškinis BRO-11 was a primary glider designed in the USSR. It was produced in large numbers from the 1950s.

The Politechnika Warszawska PW-3 Bakcyl (Microbe) is a Polish primary glider developed from the PW-2 Gapa.

References

  1. 1 2 3 4 Shenstone, B.S.; Wilkinson, K.G. (1963). The World's Sailplanes. II. Organisation Scientifique et Technique Internationale du Vol à Voile (OSTIV) and Schweizer Aero-Revue. pp. 210–11.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.