Šoštarić Vrabac
| Vrabac | |
|---|---|
 |
|
| A Vrabac A, on display at the Aviation Museum – Belgrade. | |
| Role | Primary glider |
| National origin | Kingdom of Yugoslavia |
| Manufacturer | Utva |
| Designer | Ivo Šoštarić |
| Number built |
|
The Soštarić Vrabac (Serbian: Врабац / Vrabac – sparrow) was a primary glider utilized for basic pilot training, designed and constructed in the Kingdom of Yugoslavia in 1939.[1]
| Vrabac | |
|---|---|
|
|
| A Vrabac A, on display at the Aviation Museum – Belgrade. | |
| Role | Primary glider |
| National origin | Kingdom of Yugoslavia |
| Manufacturer | Utva |
| Designer | Ivo Šoštarić |
| Number built |
|
Design and development
Constructed mainly from a blend of materials, predominantly wood and canvas, the Vrabac featured undercarriage skis for landing. It was conceived by engineer Ivo Šoštarić in 1939, drawing inspiration from the successful German primary glider, the Zögling. In contrast to the Zögling, the Vrabac did not employ wire bracing, eschewing a kingpost and utilizing struts to brace the wings to the lower fuselage.[1]
During ing at Vršac, the Vrabac demonstrated significantly superior flight characteristics not only compared to its German counterpart but also to the Polish Kocjan Wrona.[1]
Production of 15 aircraft in two versions – A and B – commenced in 1939, marking the Vrabac as the first serially produced glider in Serbia. Production persisted post-World War II, with over 150 units manufactured. The glider’s simple design facilitated its construction in local aeroclubs’ workshops during the winter months, enabling their use for training purposes in the summer.[1]
Variants
- Vrabac AInitial versionVrabac Bsecond version
Aircraft on display
-
Aviation Museum – Belgrade – a Vrabac A, manufactured in the Utva factory at Pančevo[1]
Specifications (Vrabac A)
Data from[1]
General characteristics
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Length:6.03 m (19 ft 9 in)
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Wingspan:10 m (32 ft 10 in)
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Height:2.15 m (7 ft 1 in)
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Wing area:15 m2 (160 sq ft)
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Aspect ratio:11.7
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Empty weight:90 kg (198 lb)
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Gross weight:170 kg (375 lb)
Performance
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Stall speed:42.5 km/h (26.4 mph, 22.9 kn)
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Never exceed speed:70 km/h (43 mph, 38 kn)
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Rate of sink:1.17 m/s (230 ft/min) at a speed of 47.1 km/h (25 kn)
See also
Related listsList of gliders
References
[1]
Citation Linkwww.aeronauticalmuseum.comMuseum of Aviation Belgrade (2012). “Врабац А”. Retrieved 26 December 2012.
Oct 1, 2019, 10:39 PM
[3]
Citation Linken.wikipedia.orgThe original version of this page is from Wikipedia, you can edit the page right here on Everipedia.Text is available under the Creative Commons Attribution-ShareAlike License.Additional terms may apply.See everipedia.org/everipedia-termsfor further details.Images/media credited individually (click the icon for details).
Oct 1, 2019, 10:39 PM