Main Menu

PZL Bielsko SZD-38A / SZD 42 Jantar

pzl-szd42
SZD 42

 

The first all glassfibre SZD type being the prototype Open Class SZD-38 Jantar-1 single-seater (or Amber) of 19m span, designed by Dipl-lng Adam Kurbiel, which first appeared in public at the 1972 World Championships at Vrsac, Yugoslavia, where it came 3rd in the Open Class and won the OSTIV cup for the best 19m design.
 
In 1972 it set up seven new Polish national records. It was then developed by Dipl-lng W.Okarmus into the SZD-41A Jantar Standard. The T-tailed 19 m. Jantar 1 (SZD 38A) was followed by the 20.5 m. Jantar 2 and 2B versions (SZD 42A) in 1976, which reverted to a conventional tail, and raised the wing to the shoulder position. All models have airbrakes on upper and lower wing surfaces and an unusual upper wing skin consisting of one unbroken sheet all the way to the flap trailing edge, the flaps moving from +8 to -8 degree by bending the skin. Apart from some plywood bulkheads and a welded steel tube fuselage center section carry through, the ship is all fiberglass.
 
Originally designated SZD-42A, the SZD-42-1 Jantar 2 high performance Open Class single-seater was developed by Dipl-lng Adam Kurbiel from the all-plastics SZD-38A Jantar-1 of which a small number had been built; the Jantar 2 made its first flight on 2 February 1976. The first two prototypes were flown by the Polish team in the 1976 World Championships in Finland, where they came 2nd and 3rd in the Open Class flown respectively by J. Ziobro and H.Muszczynski. These two Jantars had wings built in two sections whereas the production aircraft have the wings built in four pieces for ease of rigging and trailer transport; one of the latter aircraft, flown by R.Johnson of the USA, came 7th in the Open Class in the 1976 World Championships.
 
PZL-SZD-42-1
SZD-42A Jantar 2
 
Altogether 23 Jantar 2s had been built by the beginning of 1979, and these differ from the Jantar Standard chiefly in having wings of 20.5m (67ft 3in) span and a low-set tailplane with elevators and no tabs. Up to 287lb of water ballast can be carried, and when it is the g limits of the airframe are +4.0/-1.5, or +5.37-2.65 g without the water ballast. The Jantar 2 is of all glassfibre construction very similar to the Jantar Standard; unlike the latter it has hingeless trailing edge flaps hung from the upper surfaces, as well as light alloy DFS-type air brakes in both the upper and lower wing surfaces. The cantilever tail unit is of glassfibre/epoxy resin and there is a retractable monowheel and a tailskid instead of a tailwheel.
 
A later version was the SZD-42-2 Jantar 2B, which is very similar to the Mk 2 but with the wings raised from the mid to the shoulder position and the incidence reduced slightly. Up to 375lb of water ballast can now be carried, and the Jantar 2B features improvements to cockpit comfort, the monowheel retraction system and the elevator spring trim; there is provision for a towing hook on the cg. The Jantar 2B made its first flight on 13 March 1978 and 32 had been built by the beginning of 1980.
 
PZL-SZD-48

 

PZL Bielsko / SZD SZD 38 Jantar
Length: 23.622 ft / 7.2 m
Wingspan: 62.336 ft / 19.0 m
Aspect ratio: 27.0
Wing area: 144.022 sq.ft / 13.38 sq.m
Max take off weight: 1146.6 lb / 520.0 kg
Weight empty: 639.5 lb / 290.0 kg
Max. weight carried: 507.2 lb / 230.0 kg
Max. speed: 135 kts / 250 km/h
Landing speed: 35 kts / 65 km/h
Cruising speed: 52 kts / 97 km/h
Wing loading: 8.0 lb/sq.ft / 39.0 kg/sq.m
Glide ratio: 47.0
Crew: 1

 

Jantar 2
Span: 67 ft 3 in
Length: 23 ft 4 in
Height: 5 ft 9.25 in
Wing area: 153.4 sqft
Aspect ratio: 29.5
Empty weight: 727 lb
Max weight: 1,307 lb
Max speed: 155 mph (in smooth air)
Max aero-tow speed: 87 mph
Min sinking speed: 1.80 ft/sec at 56 mph
Best glide ratio: 48:1 at 63.5 mph

 

PZL Bielsko / SZD SZD 42 Jantar 2a
Length: 23.327 ft / 7.11 m
Wingspan: 67.257 ft / 20.5 m
Aspect ratio: 29.2
Wing area: 153.279 sq.ft / 14.240 sq.m
Max take off weight: 1278.9 lb / 580.0 kg
Max. speed: 135 kts / 250 km/h
Landing speed: 35 kts / 65 km/h
Cruising speed: 49 kts / 90 km/h
Wing loading: 8.41 lb/sq.ft / 41.0 kg/sq.m
Glide ratio: 48.0
Crew: 1

SZD 42 Jantar 2B
Wing span: 20.5 m / 67.2 ft
Wing area: 14.27 sq.m / 153.6 sq.ft
Aspect ratio: 29.5
Airfoil: Wortmann FX 67-K-150 root
Empty Weight: 362 kg / 798 lb
Payload: 287 kg / 632 lb
Gross Weight: 649 kg / 1430 lb
Wing Load: 45.6 kg/sq.m / 9.28 lb/sq.ft
Water Ballast: 191 kg / 420 lb
L/DMax: 48 90 kph / 49 kt / 56 mph
MinSink: 0.46 m/s / 1.5 fps / 0.89 kt
Seats: 1
No. Built: 60

pzl-szd42-ld

PZL Bielsko / SZD SZD 42 Jantar 2a

 

 


Copyright © 2017 all-aero. All Rights Reserved.
Joomla! is Free Software released under the GNU General Public License.