Boat propeller (3 blades)
P3B (max. 10 knts), P3C max. 16 knts) Vetus

A propeller is possibly the most essential component of a motorboat and very important for sailing boats too. It requires a lot of attention, both by the naval architect and by the propeller manufacturer. "Specialists", who are able to tell you "off the cuff" what type of propeller your boat requires, simply do not exist. VETUS makes good use of an especially developed computer programme, which ensures the determination of the exactly right propeller for your boat, with the aid of some (correct) information, which we require from you.

What are the most important demands made upon a propeller?

Balance
If you bear in mind that a propeller is often rotating at 2.000 r.p.m. (which is more than 30 revolutions per second!), you will appreciate that a good propeller should be well-balanced. A difficult and timeconsuming job, but an absolute "must" nonetheless.

Dimensions
In order to achieve the best performance and to prevent vibrations, it is extremely important to ensure that the pitch of each blade is identical and also that the distance between the blades does not vary.
Again, this requires great manufacturing precision.

Material
"Bronze" is the common denominator of a great variety of alloys. VETUS propellers are made of manganese bronze, an extremely resilient, yet very flexible material. By virtue of their material specifi cations, VETUS propellers, when damaged, can nearly always be repaired. The choice of a good (VETUS) propeller, combining all qualities mentioned above, is therefore of utmost importance!
The diameter and the pitch of propellers are nearly always given in inches (1" = 25.4 mm).