Regarded by many as the ultimate road engine the 10NHP Mclaren in any scale is an impressive and capable machine. Built by a professional steam engineer this 4” version is no exception.

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The McLaren is a complex and challenging build as such not as common as the equivalent Burrell or Fowler. The extra size and power is noticeable when at the controls and anyone that has driven a “Mac” knows pulling away in top gear always brings a smile to your face.

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The large boiler capacity makes for an easy and free steaming engine, water supply is through a crankshaft driven pump and reliable steam injector. Fitted with belly tanks, the Mac has a considerable range on the road or can spend most of the day at a rally without requiring a water top up.

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I have been particularly impressed how easy this is to drive, although the 200psi working pressure makes for a lively engine it pulls away gently and is very controllable with a touch of the double high button. Around the rally field there is little need for running at full pressure even with a trailer load of passengers it will comfortably trundle around in 2nd gear with little over 100psi on the clock.

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The engine has just had a 10 year overhaul including hydraulic and steam test with an independent boiler inspector.

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It comes with a set of firing irons and a 4" Scale traction trailer is also available subject to separate negotiation. 

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A full days tuition is included if required. 

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