Power-Direct-Drive Naval Rescue Boat

- with aluminium motor flange and built-in mounting foot and coupling

Suitable for Aeronaut Naval Rescue Boat and other models
On the Naval Rescue Boat, remove the part between the side members from frame 11. Do not use part 12.
Glue the two drive-in nuts to a support on the bottom of the hull.

provide a rigid connection between the motor and the shaft tube

dissipate heat from the motor to the shaft tube.
No loss of power due to misalignment
simple, quick installation
Waterproof
Power direct drives with 4 mm shaft and M4 thread.
With shaft coupling

Motor flange         19mm (28mm BL motor)
Shafts Ø                4mm
Shaft length           215mm
Tube Ø                  7mm
Tube length           186mm
Length with flange 225mm
Thread                   M4
Thread length        12mm
Centre bearing no
plain bearing          2 metal Teflon bearings
Thrust bearing        nylon
Rigid coupling         3.2x4mm
Supplied without motor

Advantages of DIREKT coupling flanges or Gundert-Power-Direkt drive systems compared to all other shaft systems available on the market

- Inexpensive
- Easy replacement or repair of the motor. Even if you find it difficult to reach the engine bolts because the rear end or fittings are too tight or the engine bolts are difficult or impossible to reach. With this drive system, you only work from above.

Fitting the power direct shaft system

1. drill out the shaft passage at the rear and push the shaft system through. The shaft tube should protrude by at least 1-2 mm so that the pressure disc is not glued in.
2. make a support from wood, GRP or similar and fit it into the fuselage under the coupling flange.
3. place the two drive-in nuts on the support and tighten from above with the screws. If necessary, drill holes in the base for the screws.
    Glue the support into the fuselage.
4 Glue the drive-in nuts to the support using 2-component adhesive. Lightly grease the screws to prevent them from sticking.

Dismantling the motor
Unscrew the screws from the drive-in nuts. Undo the two M3 grub screws in the flange and the coupling.
Pull the motor with the coupling flange and coupling off the pipe.
You can now easily work on the motor or replace it. Reassemble in reverse order. The previous installation position is reached again by the glued drive-in nuts. Important: Do not use existing frames in the boat to install the coupling flange. Glue an extra underlay in the boat. Otherwise you will lose the advantages of easy disassembly. Assembly or disassembly from above is then no longer possible.