Thanks to Dave Marles at Prestwich Models for this article. Power You know that changing the exhaust pipe and pipe length on your boat can have a marked effect on the engine’s power characteristics, but do you by how much and why? A two stroke 125cc engine with standard exhaust system can combust no more than 125cc of fuel air […]
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Who are our Circuit racers? All you need to know about the people who compete in FSR-H and FSR-O. Circuit Racing originated in the USA during the 1960’s, it has only appeared in the UK since 1991. Two types of craft are raced, Monohulls and Hydroplanes. All boats within this Section employ a surface piercing propeller drive system producing the […]
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Who are our Multi racers? All you need to know about the people who compete in Multi, aka FSR-Endurance (Previously FSR-V). Multi or FSR-V or Endurance racing is for submerged drive mono V-Shaped hull craft powered by Glow (Nitro) or Petrol internal combustion engines. Racing takes place on a ‘M’ shaped course with races having a typical duration of 20 […]
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Nitromethane Everybody knows it’s there, but few, it seems, really know much about it. Although most seem to know- at least vaguely – that’s its primary purpose is to add power. At best, there is much misinformation regarding this somewhat exotic ingredient. Let’s see what we can do to clear some of it up. What is model fuel made of? […]
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Spread Spectrum Radios Welcome to the 2.4GHz spread spectrum radio revolution! No other advancement in RC radio technology has changed our hobby in such a profound and positive way. As big as PCM was – it doesn’t come close to the freedoms that all spread spectrum radios have. Interference issues are more or less all gone! No more frequency conflicts! […]
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Now you can send us your photos directly from your mobile! 1. Download “Google Photos” app to your iOS or Android device if you don’t already have it (Only need to do this once): 2. Click below go to the “MPBA Members” album and open in the Google Photos app: 3. Click the circled icon in the app to add […]
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Why Are LiPo Batteries So Popular? LiPo batteries, short for Lithium Polymer battery, are a type of rechargeable battery that has taken the electric RC world by storm, especially for planes, helicopters, multi-rotor/drones and Fast Electric boats. They one of the reasons electric propulsion is now a very viable option over fuel powered models. LiPo batteries have many things going […]
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Details have been released for the 9th Camillo Braghieri Memorial race in Gonzaga. This race is part of the 2019 iMBRA Western League See HERE for details (In Italian). Related : Full Multi Calendar Like this? Why not share it
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Engine tuning on 2 stroke engines is a bit of a black art, having many routes to achieve your goal. Let’s start with basics: Exhaust timing raises power band on a 2 stroke engine, but with too high timing comes a loss of torque. With modern boat set ups and remote adjustable pipe movers, you have the best of both […]
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The propeller is the final link in a boat’s power train. Its job is to take the torque created by a marine engine and convert this torque to thrust. A propeller is designed to control the engine’s RPM and hold it at wide open throttle to the recommended RPM range specified by the manufacturer of a motor. This preferably should […]
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