Reviewed by: Brian Austin

I like the theory behind these spinners, in that they fold the prop more or less flat to the side of the model, when the motor is off.

I must amit to preferring the collet type of attachment to the motor shaft, but it was pretty painless grinding two flats on the Kontronik 5mm shaft, so as the two grub screws would hold to the shaft. You will need a Dremel type tool to do this plus a small mounted grinding point of say 1/4" dia to achieve this.

The whole process of fitting to the model took about 15 minutes. This included taking the old Graupner assembly off, changing the blades, grinding shaft etc.
A plus is that it is easier to fit a rubber band to assist folding to the fuselage, than on the Graupner assembly.

The whole unit is very nicely machined & well thought out.

Downside is that the range does not go above 38mm dia, which is a shame, as I would fit them to all my models, if available.