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Propeller 31"x12"-3B

31 inches
12 inches
Bolt diameter
10 mm

Price without tax:
In stock
227.21 $

Including tax:

274.92 $

  • Description
  • Parameters
  • Related products
  • Accessories
  • Tests

High performance prop feature hollow blades fabricated from uni-directional and bi-directional carbon fiber and epoxy.

Very light, super strong, with a solid hub area allowing them to be drilled for Multi bolt hubs.

The finish is a beautiful high gloss, clear epoxy gel-coat over black woven carbon fiber.

Factory balanced. 

31 inches
12 inches
Bolt diameter
10 mm

Werner Kohlberger, aeromodelling (Austria): 

Subjective impression of flight

Only classic, power is good but prop is to heavy (510 gramm)
Mr. Krahofer has the same one with ca 430g it is better for flying!  

Comparison with other propellers

Müller Prop 31X12 3 blade 410gramm is very good and at flying so as the Prop from Krahofer.
It is a Little better at Noise 92,5 db

Technical information of the used model
 Engine  ZDZ 224 B4
 Muffler  JMB TR 70
 Plane  Krill Extra 41 %
 RPM  5 600
 Noise level  93 db



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Billing information
     Ing. Tomáš Mejzlík
  • Šámalova 1477/60a,
    615 00 Brno,
    Czech Republic
    VAT: CZ6209081934

Ms Kateřina Szombath
Orders and Distribution