SZD-14x Jaskółka M: Difference between revisions
Adding local short description: "Polish single-seat glider, 1954", overriding Wikidata description "Polish glider" (Shortdesc helper) |
|||
| Line 1: | Line 1: | ||
{{Short description|Polish single-seat glider, 1954}} |
{{Short description|Polish single-seat glider, 1954}} |
||
<!-- This article is a part of [[Wikipedia:WikiProject Aircraft]]. Please see [[Wikipedia:WikiProject Aircraft/page content]] for recommended layout. --> |
<!-- This article is a part of [[Wikipedia:WikiProject Aircraft]]. Please see [[Wikipedia:WikiProject Aircraft/page content]] for recommended layout. --> |
||
{|{{Infobox |
{|{{Infobox aircraft begin |
||
|name=SZD-14x Jaskółka M |
|name=SZD-14x Jaskółka M |
||
|image=SZD-14 Jaskółka M.png |
|image=SZD-14 Jaskółka M.png |
||
|caption= |
|caption= |
||
}}{{Infobox |
}}{{Infobox aircraft type |
||
|type= [[Glider aircraft]] |
|type= [[Glider aircraft]] |
||
|national origin=[[Poland]] |
|national origin=[[Poland]] |
||
|manufacturer=[[Szybowcowy Zakład Doświadczalny|SZD]]<br>Władysław Okarmus |
|manufacturer=[[Szybowcowy Zakład Doświadczalny|SZD]]<br />Władysław Okarmus |
||
|designer=Tadeusz Kostia |
|designer=Tadeusz Kostia |
||
|first flight=23 July 1954 |
|first flight=23 July 1954 |
||
| Line 16: | Line 16: | ||
|} |
|} |
||
The '''SZD-14X Jaskółka M''' was a single-seat glider designed and built in [[Poland]] at ''[[Szybowcowy Zakład Doświadczalny]]'' - Glider Experimental Works in [[Bielsko-Biała]] in 1954. This was an experimental prototype, and only one unit was constructed.<ref name="SZD-14x">http://www.piotrp.de/SZYBOWCE/pszd14.htm</ref> |
The '''SZD-14X Jaskółka M''' was a single-seat glider designed and built in [[Poland]] at ''[[Szybowcowy Zakład Doświadczalny]]'' - Glider Experimental Works in [[Bielsko-Biała]] in 1954. This was an experimental prototype, and only one unit was constructed.<ref name="SZD-14x">http://www.piotrp.de/SZYBOWCE/pszd14.htm {{Dead link|date=February 2022}}</ref> |
||
==Development== |
==Development== |
||
Revision as of 19:18, 21 February 2022
| SZD-14x Jaskółka M | |
|---|---|
| |
| Role | Glider aircraft |
| National origin | Poland |
| Manufacturer | SZD Władysław Okarmus |
| Designer | Tadeusz Kostia |
| First flight | 23 July 1954 |
| Number built | 1 |
| Developed from | SZD-8 Jaskółka |
The SZD-14X Jaskółka M was a single-seat glider designed and built in Poland at Szybowcowy Zakład Doświadczalny - Glider Experimental Works in Bielsko-Biała in 1954. This was an experimental prototype, and only one unit was constructed.[1]
Development
The SZD-14X Jaskółka M was developed from the SZD-8bis Jaskółka (Swallow) for research into the construction, control and characteristics of 'V' or butterfly tail surfaces.[2] Using the airframe of the second prototype SZD-8 a 'V' tail was added to the rear fuselage, with arrangements for the balance of the surfaces and the angle between them to be adjusted as required.[1] The designer was Tadeusz Kostia, the constructor was Władysław Okarmus.[3]
First flown by Adam Zientek at Bielsko on 23 July 1954,[3] the SZD-14 was found to be easy to fly with no vices, giving no indication that the tail layout was unconventional.[1] During spinning tests the rear fuselage was almost torn off, but the pilot (Dziurzyński) managed to regain control and recovered the aircraft to land safely.[2]
Up to the time of the SZD-14's debut, the 'V' tail system was rare, with few aircraft using the system devised by Eng. Jerzy Rudlicki and demonstrated on a licence-built Hanriot HD.14 biplane in the early 1930s.[4]
Specifications (SZD-14x Jaskółka M)
Data from http://www.piotrp.de/SZYBOWCE/pszd14.htm
General characteristics
- Crew: 1
- Length: 6.48 m (21 ft 3 in)
- Wingspan: 16 m (52 ft 6 in)
- Height: 1.3 m (4 ft 3 in)
- Wing area: 13.6 m2 (146 sq ft)
- Aspect ratio: 18.8
- Airfoil: NACA 23012A
- Empty weight: 288 kg (635 lb)
- Gross weight: 373 kg (822 lb)
Performance
- Maximum speed: 250 km/h (155 mph, 135 kn)
- Stall speed: 59 km/h (37 mph, 32 kn)
- Maximum glide ratio: 26.3 at 80 km/h (43 kts/50 mph)
- Rate of sink: 0.70 m/s (138 ft/min) at 69 km/h (43 mph/37 kts)
See also
Related development
Aircraft of comparable role, configuration, and era
References
- ^ a b c http://www.piotrp.de/SZYBOWCE/pszd14.htm [dead link]
- ^ a b Simons, Martin. Sailplanes 1945-1965 2nd revised ed. EQIP Werbung und Verlag G.m.b.H.. Königswinter. 2006. ISBN 3-9807977-4-0
- ^ a b Babiejczuk, Grzegorzewski. Polski przemysł lotniczy 1945-1973, p. 120
- ^ Cynk, Jerzy B.. “Polish Aircraft 1893–1939”. London, Putnam. 1971. ISBN 0-370-00085-4
- Taylor, J. H. (ed) (1989) Jane's Encyclopedia of Aviation. Studio Editions: London. p. 29
- Cynk, Jerzy B.. “Polish Aircraft 1893–1939”. London, Putnam. 1971. ISBN 0-370-00085-4
- Simons, Martin. Sailplanes 1945-1965 2nd revised edition. EQIP Werbung und Verlag G.m.b.H.. Königswinter. 2006. ISBN 3-9807977-4-0
- (in Polish) Babiejczuk, Janusz and Grzegorzewski, Jerzy. Polski przemysł lotniczy 1945-1973 [Polish aerospace industry 1945-1973]. Warsaw: Wydawnictwo MON, 1974
External links
