Pilatus B4 from ECOTOP


In the mid 60s, the "Firma Rheintalwerke G. Basten" flew the prototype of a standard class glider (15 meter wingspan without flaps), mainly made of metal (aluminium), the "B4". Manfred Herbst and Rudolf Kueppers were the designers. Some years later, in 1972, the famous aircraft manufacturer Pilatus (Switzerland) gets the license and starts production. 322 Pilatus B4 were produced until 1980, and 13 additional sailplanes were produced in Japan by Nippi Aircraft. In addition to metal building, which is uncommon for Europeans gliders, the B4 is designed for aerobatics, and over the production, the airframe was reinforced to withstand significant load factors.


  • Strong sheeted foam wings.
  • The glass fiber fuselage is factory pre-drilled so the wings and stab fits perfectly.
  • Stab is removable for easy transportation and storage.
  • An optional brushless motor allows flying without any tug plane, and for slope flying, provide a great safety.
  • And of course... the model is delivered fully assembled and covered, you just have to make final assembly, install the radio system and the motor.
  • With the Pilatus B4, you can practice soaring on flat fields as well as slope soaring with a tiny semi scale sailplane, very easy to store and to carry. Flight characteristics are fun, with a very realistic shape.



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Radio icons

FrSky X10

FrSky X12s

Jumper T16

Jumper T18

Radiomaster TX16S

FlySky NV14

FlySky EL18

PNG (192x114)

FrSky X9D

FrSky X9E

BMP (64x32)

BMP (64x32)

FrSky X20

FrSky X20 Pro

FrSky XE

Kavan V20

PNG (300x280)

BMP Recommended (300x280)

FrSky X18

FrSky Twin

PNG (180x166)

BMP Recommended (180x166)

FrSky X10

FrSky X12s

PNG (180x160)

BMP Recommended (180x160)

FrSky X10

FrSky X12s

JPG (155x100)

Futaba 18MZ

JPG (158x80)

Graupner MZ16

Graupner MZ32

BMP (158x106)

Jeti DS-24

PNG (320x240)

Spektrum ix12

Spektrum ix20

JPG (266x164)

Similar Models

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We cannot guarantee that the shops listed below do sell the Pilatus B4 in particular but at least we know they do distribute ECOTOP.

Wingspan: 2000mm (78.7 in)
Length: 930mm (36.6 in)

Weight: 1200 g (2.6 lbs)
  • Scale: 1:7.5
  • Wingspan: 2000 mm
  • Length: 930 mm
  • Weight: 1.1 to 1.2 kg
  • Wing Surface: 26.9 dm²

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