EB28 edition two-seater

25,3 or 28,3 meters of wingspan possible

EB28 edition - die Weiterentwicklung der EB 28
EB28 edition - die Weiterentwicklung der EB 28

The further development of EB28. New profil at wingtip.

  • Self launching open class twoseater with 25.3 or 28.3  meters of wingspan and a multitude of additional detail solutions.
  • Sufficient space even for tall pilots in a spacious cockpit under a one piece canopy.
  • To minimize the structural weight the main parts of wing and fuselage are built using vacuumsuction method. this allows the utmost possible .
  • The gross weight is 850 kg

Technical data:

wing span 

25,3 m / 28,3 m

wing area

15,4 m² / 16,5 m²

aspect ratio

42,3 / 48,4

fuselage length

9,1 m

hight (fin plus tail wheel)

1,7 m

emty weight with minimal equipment

ca. 560 kg

maximum ramp weight

850 kg

wingloading minimum

ca. 42,0 kg/m² / 40,0 kg/m²

wing loading maximum

ca. 55,2 kg/m² / 51,4 kg/m²

maximum speed

275 km/h

minimum speed

78 km/h

minimum sinkrate

ca. 0,4 m/s

best gliderratio

ca. 65

Solo engine

ca. 60PS

FRP-prop Binder BM-G1

d 1,6 m

rate of climb with engine (according ICAO standard athmosphere)

2,5 m/s

cruise speed in powered flight

max.160 km/h

max useable tank capacity (standard)

36 ltr

DatasheetEASA.A.512 EB28 issue 3


Our spacious cockpit provides sufficient space even fort tall pilots. For more passive safety the seating pan is made from carbon-kevlar-fibre hybrid material. The retractable gear with a rubber suspended strut is equipped with a hydraulic disc brake that is connected to the speed brake lever fully applied.  The cockpit ventilation feed by an air intake at the fuselage nose keeps you comfortable. To compensate for c.g. movements when water ballast is used in the wings a water tank in the tAailplane is fitted .

Our  6-piece cantilever wing is equipped with laminar airfoiloptimezed by boundary layer control on lower wing surface. Wingtip with winglet for 28.3 m or optional wingtip with winglet for 25.3 m wing span. A fuel bag for 18 ltr is installed into each inner wing. All control surfaces are made from high modulus carbon fibre providing an extra stiff and light weight system. Dive brakes are fitted to the inner wings made of CFK covered by flexible fibre top come out of the upper wing surface. Push rods guides are sealed by rubber bellows. The water ballast tanks in the outer wing have capacity of 50 ltr each. 

Conventional stabilizer.stabilizer fin in CFC sandwich construction; glass fibre vertical fin to provide optimal radio performance with the built in antennas for radio and transponder

Removable carbon design contour seats with built in cavity for a parachute. One piece perspex canopy for improved pilots visibility equipped with two sliding windows.
Defogging ventilation for the canopy. Individually controllable air outlets for each pilot on the right cockpit wall.

Electrically adjustable trim with the operating switch on the front controlstick as serial equipment.  Front seat rudderpedals designed for in-flight adjustment. Tost safety release for aero towing. Radio antenna built in the vertical fin for optimal radio performance. Wing extensions with wheels for improved ground handling. Fuel bags with 18 ltr capacity are fitted to each inner wing  additional to the  19,5 ltr  tank in the fuselage.

Solo engine 2625/2 with 625 cc , ca 60 hp with dual ignition and electric starter. Centrifugal sliding clutch in toothed belt drive for smoother running comes as standard equipment. The powerplant control gauge is fitted to the instrument panel. For an improved extensioAn and retraction of the power plant lithium-mangan-batteries are fitted with a chargeing voltage of 16,8 V.
Our Binder BM-G1-160-R-120-1 Propeller comes as standard equipment.
The Solo motor drives the propeller through a 1:3 tooth belt reduction gear.

Saving weight:
Already during construction of the  shells (fuselage, wing and elevator) weight is saved by taking out surplus resin by vacuum sucking - for example 10kg weight in fuselage shells. Additional 5 kg can be saved by using lithium-mangan-batteries in the fuselage.


  • PU-paint for higher temperature and UV resistance results in a reduced tendency for cracks
  • built in fuel filling pump for fuselage tank
  • Support for 4 ltr oxygen bottle
  • leather trim for seat covers and side pockets
  • tinted canopy
  • antenna for a mode s transponder can be built into the fin – aerodynamically hidden
  • wingtip with winglet for 25.3 m wing span


  • EB28 edition - die Weiterentwicklung der EB 28

Pictures of the EB28 edition

  • EB 28 edition

by Gerhard Marzinzik

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Binder Motorenbau GmbH
Alter Frickenhäuser Weg 15
D-97645 Ostheim v. d. Rhön

Tel.: +49(0)9777 - 9200


HB DE.21.G.0138