Luftsport-Club Friedrichshafen LCF-2

This single-seat Club Class sailplane is intended for use as a trainer, for competition flying and for aerobatics; it was designed in 1971 as a successor to the earlier LO 100 and the prototype was built in approximately 4,000 hours by five engineer members of the Luftsportclub der Zeppelinstadt Friedrichshafen. It first flew on 22 March 1975 and won first prize at that year’s meeting of the CUV or Oskar-Ursinus-Vereinigung, Germany’s equivalent of the Experimental Aircraft Association.

The cantilever shoulder wings are single-spar wooden structures, with Conticell foam ribs and plywood covering; there are Schempp-Hirth air brakes on the wing upper surfaces. The oval-section fuselage is a welded steel tube structure with glassfibre covering of the nose section and fabric covering of the rear half. The plywood tail unit is filled with Conticell foam, and the landing gear consists of a semi-recessed non-retractable monowheel and a tailwheel. The pilot sits under a one-piece flush fitting cockpit canopy.

There were plans for production of the LCF II by Scheibe if sufficient orders for it had been received, but these were dropped.

LCF 2
Wing span: 13m / 42 ft 7.75 in
Wing area: 10sq.m / 107.6 sqft
Aspect ratio: 16.9
Wing section: Wortmann FX-60-126
Length: 6.35 m / 20 ft 10 in
Height: 0.9 m / 2 ft 1.5 in
Empty Weight: 190kg / 419 lb
Gross Weight: 300kg / 661 lb
Water ballast: None
Wing Load: 30kg/sq.m / 6.14 lb/sq ft
Max speed: 174 mph / 135 kt / 250 km/h
Max aero-tow speed: 105 mph
Stalling speed: 33.5 kt / 62 km/h
MinSink: 0.70 m/s / 2.30 ft/sec at 68 kph / 42.5mph / 36.5 kt
Best glide ratio: 30:1 at 53 mph / 85 kph / 46 kt
No. built: 1
Seats: 1

Luenger Beta 1

The Beta 1 was designed by Hans Luenger and Josef Kohler with the intent of being the first US production fiberglass sailplane. The semi boom-and-pod fuselage was composed of two fiberglass half-shells that join top and bottom. It featured a fully-reclined pilot position, T-tail with mass-balanced elevators, fixed gear and Schempp-Hirth speed-limiting dive brakes. The Beta 1 has been donated to the National Soaring Museum.

Wing span: 17m / 55.8ft
Wing area: 13sq.m / 140sq.ft
Aspect ratio: 22.3
Empty Weight: 313kg / 690lb
Gross Weight: 413kg / 910lb
Payload: 100kg / 220 lb
Wing Load: 31.91kg/sq.m / 6.06lb/sq.ft
L/DMax: 38 93 kph /50 kt / 58 mph
MinSink: 0.61 m/s / 2.0 fps / 1.18 kt
Seats: 1
No. Built: 1
Airfoil: Wortmann FX 61-184/160

Lucas L8

The US agent for plans and kits was Micro Technologies Inc.

Top speed: 220 mph
Cruise: 165 mph
Stall: 60 mph
Range: 600 nm
Rate of climb: 1000 fpm
Takeoff dist: 1300 ft
Landing dist: 500 ft
Service ceiling: 14,000 ft
Engine: Lycoming O-320, 150 hp
HP range: 150-180
Fuel capacity: 50 USG
Empty weight: 1000 lb
Gross weight: 1600 lb
Height: 5 ft
Length: 18 ft
Wing span: 26 ft
Wing area: 90 sq.ft
Seats: 2
Landing gear: nose

Lucas L7

Designed in 1988, the retractable L7 can fit up to 200 hp without modification. The 5 x 4 ft door permits large item loading, or parachute dropping.

Top speed: 142 mph
Cruise: 110 mph
Stall: 44 mph
Range: 560 nm
Rate of climb: 500 fpm
Takeoff dist: 1540 ft
Landing dist: 1700 ft
Service ceiling: 13,00 ft
Engine: Lycoming O-235, 115 hp
HP range: 115-180
Fuel capacity: 30 USG
Empty weight: 1150 lb
Gross weight: 1750 lb
Height: 8 ft
Length: 21 ft
Wing span: 34 ft
Wing area: 133 sq.ft
Seats: 2
Landing gear: nose or tail wheel/retractable

Lucas L6

A motorglider with either nose or tail wheel. It can be flown with a 28 ft wing and O-235 engine. A removable wing extension was optional. The wings fold and detach.
The US agent for plans and kits was Micro Technologies Inc.

Top speed: 110 mph
Cruise: 98 mph
Stall: 44 mph
Range: 621 nm
Rate of climb: 450 fpm
Takeoff dist: 1480 ft
Landing dist: 1600 ft
Service ceiling: 14,000 ft
Engine: Limbach, 80 hp
Fuel capacity: 20 USG
Empty weight: 990 lb
Gross weight: 1480 lb
Height: 8 ft
Length: 22 ft
Wing span: 15 ft
Wing area: 180 sq.ft
Seats: 2
Landing gear: nose or tail wheel

Engine: Lycoming O-235
Wing span: 9 m
Wing area: 13 sq.m
MAUW: 750 kg
Empty weight: 490 kg
Fuel capacity: 150 lt
Max speed: 260 kph
Cruise speed: 230 kph
Minimum speed: 100 kph
Climb rate: 3 m/s
Seats: 2
Fuel consumption: 28 lt/hr
Plan price (1998): 2500 Fttc