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Here at Celtic Power we like to play, having a machine shop and fabricating facility at our disposal certainly does nothing to put us off trying out many ideas. This page is dedicated to our projects that are slow in creation but fun nevertheless. Perhaps this page alone will tell you the most about who we are.
My personal passion is jet power. I do not remember when this started but I do recall being about 12 years old wondering why a turbocharger could not become a jet engine. It took the past 15 years to perfect the answer:- “ a combustion chamber ! ” . In that time I studied jet engines and their theory, I found drawings for model engineers and eventually a design from a company in Britain for a jet engine based on turbocharger components. After seeing those drawings I set about modifying the engine and spent two years before building the first turbine that started and ran. The picture to the right is the result and obviously does not resemble a turbocharger!


This year I finally received a toy I have been hoping for for years. Brian “found” this Plessy Dynamics “Solent”. The Solent is a beautiful little engine built in Tichfield, England. They were produced in the late 60’s and early 70’s for Rolls Royce and fitted to the RR Spey engine in the F4 Phantom Fighter jet. This tiny marvel is actually the starting motor for the Spey engine. The Solent is physically about 20” long and about 10” dia. It weights approx. 60 Lbs and the amazing bit is it generates a whopping 75 SHP @ 5000 Rpm and 150 Lbs of torque. It was immediately obvious to me that it needed fitting into a motorcycle. Being so small it fits in my arm like a baby it will fit in my GT 750 chassis beautifully. I have started machining the parts to fit the 90 degree output gearbox from a XS 1100 Yamaha onto the back of the transmission and incorporate the rear engine mount. The output shaft will also have mounted on it a brake caliper to lock the transmission, a fan to cool the transmission. More pics will be posted as the parts are made.
The engine has been separated from the transmission and set up on a stand for bench running. Running it was one of the more frightening moments of my life when it went from start button to 60,000 Rpm governed in 4.3 seconds. I quickly went for the fuel shut off but did not even touch it before the governor kicked in. I wouldn’t of got there in time had the governor failed to to its job!!!
Click the camera to see the Solent Bench Run