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LET L-23 Super Blaník

Training glider

Field	Value
name	L-23 Super Blaník
image	Blanik 3 a.jpg
type	Two-seat sailplane
national_origin	Czechoslovakia
manufacturer	Let Kunovice
first_flight	1988
developed_from	LET L-13 Blanik

The LET L-23 Super Blaník is a two-seat, all-metal structure glider with fabric covered control surfaces. The aircraft is primarily used for flight training; its single-seat sister model is the Let L-33 Solo.

Design and development

The Super Blaník is an improved version of the original LET L-13 Blanik. The cockpit is somewhat roomier in the L-23, and some differences are a swept fin and a T-tail, and on the L-23 flaps were deleted to save weight since they were rarely used on the LET L-13. The airbrakes were retained however, and these open on both the top and the bottom of each wing. LET also moved the tailplane to the top of the vertical stabilizer for better protection in case of an outlanding. It also has a new instrument suite.

The aircraft has a two-piece canopy, where the front part opens to the right, and the rear part opens upwards and to the rear. This was done to improve vision compared to the L-13. From serial No. 968401 it was delivered with a one-piece canopy, that opens to the right only (with a very small canopy section opening to the rear at the wing root). The maximum number of occupants is two. If it is to be flown solo, the pilot must be sitting in the front seat and his weight (including parachute and ballast) must be at least 70 kg (154 lb). If the pilot's weight is less than 70 kg (154 lb), it is necessary to use ballast to bring the total weight in the front above the required limits. A weighted seat weighing 15 kg (33 lb) is available to replace the soft seat cushion bottom in the front seat.

The United States Air Force Auxiliary Civil Air Patrol uses the L-23 as a trainer for cadets.

Blanik Aircraft CZ s.r.o. plans a new version of the L-23, the L23NG (New Generation), with winglets and slightly higher performance (L/D ratio: 31). It will have an improved fuselage and one-piece canopy.

Variants

;L-23 Super Blaník :Original variant ;L23NG :"New Generation" variant with winglets, an improved fuselage, and a one-piece canopy. ;TZ-23 :Brazilian Air Force designation of the L-23.

Specifications

|prime units?=met General characteristics

|max takeoff weight kg=510 |max takeoff weight note=dual Performance

|never exceed speed kts=138 |never exceed speed note=in smooth air at max t/o weight dual ::::160 kph in rough air ::::150 kph on aero-tow ::::120 kph on winch launch ::::130 kph flaps extended |wing loading kg/m2=26.63

References

"L-23 New Generation".
"Brazilian Military Aircraft Designations".
(1988). "Jane's All the World's Aircraft 1988-89". Jane's Information Group.

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

1980s-czechoslovak-sailplanes glider-aircraft let-aircraft forward-swept-wing-aircraft aircraft-first-flown-in-1988 t-tail-aircraft

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