Koolhoven Flying Boat Projects

[Pim Pouw]

Pim: indeed! Now being puzzled if numbers in front of 80PK were sanded away (like other letters missing), or on what very early -max 80HP- plane the prop was used for (see* big prop dimensions.., I could imagine one needs wide 25,5 cm blades for a seaplane to have most pull power at low speed to get out of the water..). Would you know a Koolhoven expert who can recognize this prop? Thx, Hans

Big propeller + 80hp = slow turning rotary engine

Clerget 7Z
Le Rhône 9C
Thulin A ( licence Le Rhône 9C )
Gnome Lambda
Oberursel U.O ( licence Gnome Lambda )

So save to say no Koolhoven propeller