Steve Dorling

Steve Dorling  |  Apr 02, 2008  |  0 comments
Glance at the picture on the right there and there's no need for me to tell you that the subject of this review looks pretty striking in blue. Actually, it's very blue, and to all intents and purposes is a typical, nicely made, Chinese engine like all the others in this category. This is no bad thing, for without such Far Eastern manufacture the range of engines available to us would be very limited. The Chinese have been hard at this game for a couple of decades now and their engines are arguably amongst the very best out there.
Steve Dorling  |  Apr 02, 2008  |  0 comments
Welcome to the second part of my JBA 52. I covered the basics in Part One, so I'll now move on to how it performed. Bolting the JBA 52 to my trusty (if very oily and battle damaged) test rig, I affixed an APC 11 x 6" glass nylon propeller to the business end. Since there’s no plug supplied (black mark, I hate that - it's like buying a car without a steering wheel; useless 'til you have one) I fitted a trusty Enya No.
Steve Dorling  |  Mar 12, 2008  |  0 comments
Plenty to choose from, but which is right for your model? Servos are probably the most complex and delicate components within an R/C system, engineering marvels that most of us take for granted. Both electronic and mechanical in operation, the servo provides fine control of the model's surfaces as dictated by the movement of the sticks and switches on your Tx (transmitter). So what makes this little box of tricks tick?LAID BAREEvery servo contains a small printed circuit board, upon which a few amplifier components are situated, and there are various other bits and bobs of 'electrickery' attached to that. A few wires connect this board to the servo drive motor and the feedback potentiometer situated immediately beneath the mechanical gearbox, and that's about it.
Steve Dorling  |  Feb 01, 2008  |  0 comments
When asked to write this feature I was very wary, if only because this is the one subject that's almost guaranteed to put the cat amongst the amateur industrial chemists out there, with almost everyone having an opinion on the subject. The problem with glow fuel is that we think we know more than we actually do, and in truth reading the instructions supplied with most model engines does little to clear things up. For years the importer of one particularly well-respected range of four-stroke engines remained completely at odds with the manufacturer, countermanding their advice. The supplied instructions were very clear in that they demanded only synthetic lubricants in the fuel, yet the factory instructions were rubber stamped 'Use Castor Only' in bold red typeface, leaving the buyer between a rather imposing rock and a very hard place indeed, with similar paradoxical examples to be found elsewhere.
Steve Dorling  |  Apr 03, 2007  |  0 comments
You can read Part One of this review here. For this section, I'll move on to putting the Bobcat together. The instructions suggest that the Bobcat is built as a one-piece airframe, which is no bad thing since it just fits in my short wheel-base 4x4 with the seats folded and, likewise, would comfortably ride in the back of a similarly configured family hatch. Convenience goes a long way in this game! Mind you, given that the wings slide over a tubular alloy spar, and that the boom and tailplane are bolted together, it seemed that the model was almost designed to be disassembled.
Steve Dorling  |  Apr 03, 2007  |  0 comments
It's time for the third and final part of this Gas Bobcat 52 review; if you missed them, be sure to look back at Parts One and Two. Whilst awaiting a decent slot in the awful winter weather, I supplemented the supplied decals with some stars and bars, my club name and a few other scraps of self-adhesive 'bling', created by those helpful chaps at rcgraphics. co. uk.
Steve Dorling  |  Dec 12, 2006  |  0 comments
Many moons ago, in a bygone era when you got change from a quid at the pub, the idea of using anything other than a two-stroke glow for R/C purposes seemed incomprehensible to most of us. At that time petrol engines were mainly either vintage devices or the odd chainsaw conversion forced into service. There were also dedicated mavericks who could be found hunched over their Myford Super 7s or the like, late into the night, turning out 'specials'. By and large, the idea of a four-stroke model aero engine was at best fanciful, and in practical terms a nonsense, or so it was thought.
Steve Dorling  |  Dec 12, 2006  |  0 comments
Similar in appearance to Enya's popular 41 four-stroke glow engine, this rather unusual hybrid is an interesting beast. Supplied partly assembled with cylinder head only lightly affixed, pushrod tubes loose in the box and rocker cover similarly detached, it's clear that this one's aimed at specialists and collectors who know one end of a conrod from the other. As we discussed in the last issue, the general construction is up to Enya's impeccably high standard yet, as always, the proof of the pudding is in the eating. Stay tuned, then, as we seat ourselves for dinner and prepare to savour every mouthful of Enya's brand new four-stroke diesel offering.
Steve Dorling  |  Dec 11, 2006  |  0 comments
The model diesel engine is very close to my heart, so I'm always pleased to see a new one appear. I was eleven years old when I saw my first, this being when my very enlightened secondary school woodwork teacher started an aeromodelling club. Imagine today's angst-ridden teachers showing such initiative, with their hand-wringing fuss over health, wealth, safety and sorcery in this litigious age! Wandering aimlessly around the playground circa 1963 I became aware of a burping, rasping noise that turned out to be a small diesel running on a test bench outside the woodwork shop. A gaggle of curious pupils crowded around the teacher as he fiddled with the tommy bar, coaxing the engine up to speed.
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