Hi, I’ve spent years repairing propellers in my own professional propeller repair business. I repaired propellers from 6 inch to 63 inch in diameter. Nearly all of the content on this web site is based on my own personal experiences and knowledge of propellers. You’ll find an interaction for simple pitch measuring, a speed calculator, and hopefully enough basic information to satisfy your curiosity.

What would you like to know about propellers?

I have a really Simple Pitch Measuring flash interaction with video I made for those who would like to experiment with measuring their propeller pitch. For an explanation of how pitch is measured have a look over our How to measure Propeller Pitch article. My Boat Speed Calculator is a simple educational calculator to give you a way of working out different variables. Under Propeller Info I have a series of videos I made to give you basic information about propellers, engine heights and hull problems. If you have any good images that you have taken and would like to submit to this site then please email them through for consideration. I have more ideas for content so check back occasionally to see whats new.

Propeller Repair Tools

The original propeller repair tools have been used by us for over 20 years in the propeller repair industry. These tools have been redesigned for even speedier repairs. This package is suitable for small outboard shops, light engineering shops or anyone already familiar with aluminium welding and basic concepts of propellers and applications. The PropKit1 tools were designed to be used for averaging out the propeller pitch and rake to give quick repairs. read more......

Propeller Repair Software

The Propeller Repair Software is designed to combine with the Propeller repair tools to give reasonable accuracy in the measuring of propellers from 9" to 20" Diameter. (Please note 9" is the minimum propeller diameter for the software to measure at 6" diameter. The 9" minimum for the software measuring does not prevent us from repairing smaller size propellers) Simple easy to use measuring software is designed for Windows based computers. Propeller measuring at your fingertips. Try a demo versions of our software online. read more......

Special Mention

I do need to clarify, this system is nowhere near efficient as a computerised system nor was that the intention. If you are going to repair a lot of heavily damaged stainless steel or bronze propellers to ISO standards then I would highly recommend you look at purchasing another propeller repair system using pitch blocks and computer scanners. All information on this site is provided as a guide only and you would need to investigate the suitability of this information and equipment for your own applications. It is impossible to list every variable on this web site which would relate to the many scenarios you may come across. People’s lives are at stake if you send them out to sea with a faulty bush a poor blade repair or bad advice. You need to set your standards very high and let’s keep in mind the safety aspect of boating. Make sure you are competent enough in your advice and to make those decisions about what’s a safe repair and what should be basically thrown away. Having said all that, this system did everything I needed it to do for years and years. If you are already repairing propellers and looking for the first step into the industry then this would be a great starting point for your own propeller repair business. Basically, I am giving you the whole propeller repair information I used and was given. Repairing propellers was such a closely guarded secret and the system I used was so basic and simple I had to hide these tools so no one could copy them. With these tools and a couple of sanders, hammers, a vice and a tig welder and some other small equipment you can easily and quickly start repairing propellers today. I’d also expect you would already be competent with welding aluminium and using power tools. As I said this is a great starting point for those who want to get into the industry. Remember you are accessing my information on “How I repaired propellers” and the tools that I used to do that job.