SZD-14x Jaskółka M

SZD-14x Jaskólka M
Role	Glider
National origin	Poland
Manufacturer	PZL Bielsko
Designer	Władysław Okarmus & Tadeusz Kosti M.Sc.
First flight	23rd July Template:Avyear
Number built	1
Developed from	SZD-8bis Jaskółka

The SZD-14x Jaskólka M (Szybowcowym Zakladzie Doświadczalnym - Szybowcowym experimental department) was a single-seat glider designed and built in Poland from 1951.

Development

The SZD-14x Jaskólka M was developed from the SZD-8bis Jaskółka for research into the construction control and characteristics of 'V' or butterfly tail surfaces. Using the airframe of the second prototype SZD-8 a 'V; tail was added to the rear fuselage, with arrangenments for the balnce of the surfaces and the angle between them to be adjusted as required. Flown by Adam Dziurzyński at Bielsko the SZD-14 was found to be easy to fly with no vices,giving no indication that the tail layout was uinconventional. Up to the time of the SZD-14's debut the 'V' tail system was very rare with few aircraft using the system devised by Eng. Rudlickiego, and demonstrated on a Hanriot bi-plane in the early 1930's. met |crew=1 |capacity= |length m= 6.48 |length ft= 21 |length in=3 |span m= 16 |span ft= 52 |span in= 6 |swept m= |swept ft= |swept in= |rot number= |rot dia m= |rot dia ft= |rot dia in= |dia m= |dia ft= |dia in= |width m= |width ft= |width in= |height m= 1.3 |height ft=4 |height in=3 |wing area sqm= 13.6 |wing area sqft= 146.4 |swept area sqm= |swept area sqft= |rot area sqm= |rot area sqft= |volume m3= |volume ft3= |aspect ratio= 18.8:1 |wing profile= NACA 23012A |empty weight kg= 288 |empty weight lb= 635 |gross weight kg= 373 |gross weight lb= 822.3 |lift kg= |lift lb=

|eng1 number= |eng1 type= |eng1 kw= |eng1 hp= |eng1 kn= |eng1 lbf= |eng1 kn-ab= |eng1 lbf-ab= |eng2 number= |eng2 type= |eng2 kw= |eng2 hp= |eng2 kn= |eng2 lbf= |eng2 kn-ab= |eng2 lbf-ab=

|max speed kmh= 250 |max speed mph= 155 |max speed kts= 135 |max speed mach= |cruise speed kmh= |cruise speed mph= |stall speed kmh=59 |stall speed mph=36.66 |stall speed kts=31.86 |range km= |range miles= |endurance h= |endurance min= |ceiling m= |ceiling ft= |g limits= |roll rate= |glide ratio=26.3 @ 80 km/h (43.2 kts / 49.7 mph) |climb rate ms= |climb rate ftmin= |sink rate ms=0.7 |sink rate ftmin= |Min sink speed km/h= 69 |Min sink speed mph= 42.9 |Min sink speed kts= 37.25 |armament1= |armament2= |armament3= |armament4= |armament5= |armament6= }}

See also

Aircraft of comparable role, configuration, and era

• Standard Austria

Related lists

• List of aircraft
• List of gliders

References

• Taylor, J. H. (ed) (1989) Jane's Encyclopedia of Aviation. Studio Editions: London. p. 29

External links

• http://www.piotrp.de/SZYBOWCE/pszd14.htm