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Forgot your password? Or sign in with one of these services. Whilst much has been discussed concerning the use of semi diesel engines built by Bolinder, in Sweden, British manufacturers also provided engines of the diesel type. It is their development for use as power for narrowboats, which might deserve further examination. I understand the Hot bulb, or semi diesel, was different to the diesel engine, in that it required an external heat source, such as a blow lamp to commence the ignition cycle, whereas the diesel engine relied on ignition through compression.
It is this form of internal combustion which has become such a concern through the waste gases produced. Both types of engine were, in the early periods of development, adapted as stationary engines, as were the gas engines that ran on town gas. I was curious if the types of motor has been fully documented in the working boat fleets, especially noting the difference. Had the SURCC continued, there may have been more diesel powered, or semi diesel powered craft under their control.
Internal combustion development seemingly increased in the 's and several carriers adopted this form of power. Cowburn and Cowper had Seagull, Skylark, Snipe. Starling, Stork. Swallow, Swan and Swift. Except that none of those Cowburn and Cowpar boats are s, I think. These boats I believe had Gardner hot bulb engines, so again semi-diesels on the same principle as Bolinders, whereas the GUCCCo boats had Nationals and Russell Newberys, so proper "full" diesels, which was surely the decade when developments were moving towards more modern engines.
Are any of the Gardner hot bulb engines still in use in any narrow-boat? Along with Bolinders I'm aware of Seffles and Petters, but I'm not sure about other makes of hot bulb engines. I know that Mike the Boilerman's "Reginald" briefly had a Skandia, but what its fate was I'm not sure. It was a standard design made by Sulzer, and not a marine version, the need for which becoming obvious after the trial. The engine was removed from the boat and reinstalled at Finsley Gate workshops to drive the sawmill, as seen in the photo.