The Steamboat Association
Engines / Boilers - Sales & Wants
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Adverts last modified: 28th November 2023
Compound steam launch engine
28th November 2023
This classic compound launch engine was built in 2004 by Sam Wilkinson one of the SBA’s finest engine builders. The engine is based on Savery 1914 design, giving 6 HP at 600 RPM.
Cylinders 2.5 + 5 x 3 inch stroke.
Fitted with Savery/Joy type valve gear. Complete with belt driven pumps for condenser air/water and boiler feed water.
This is a substantial compact well built steam engine for a launch up to 25 feet. This engine was in service up to the end of 2022, reliable and powerful.
Can be seen running on compressed air at Bourne End in Buckinghamshire.
Price £5000 ONO
Call Andy Hopper on 01628 526499 for more details.
(Many more pictures available on request)
Another Unique Geoff Calvert Engine
3rd November 2023
This engine was built by Geoff Calvert (the creator of Senta) in about 1980. It features:
Unique Geoff Calvert Engine
5th September 2023
This remarkable engine was built by Geoff Calvert (the creator of ‘Senta’) in about 1980. It features:
Revd Mark Rudall
Simson Strickland Engine & Geoff Newton Boiler
12th October 2023
Two-cylinder compound, double acting, 2.5in + 5in x 3in stroke, 640rpm, 8 IHP @140p.s.i. Cast gunmetal frame, slide valves with Stephensons link, engine driven LP cross head feed pump, and HP cross head air pump, keel type condenser, plus associated parts. The engine and is reputed to be early 1900’s, but was most recently fitted in our 31ft launch the 'Swan-of-Avon', and the 30ft ‘Selina’ before that.
Unused vertical fire-tube boiler built in 2005 to a design by Geoff Newton and built by Terry Statham. There is a test certificate from 2015. It has a deep fire box to enable the burning of wood as well as coal. Includes inner and outer funnel and new ash pan.
Contact Nick Birch or Ed Rose at Avon-Boating in Stratford-upon-Avon on 07779008390, or nick dot b at avon-boating dot co dot uk. We are open to reasonable offers.
Twin Cylinder Engine Parts
31st July 2023
For sale from the estate of the late Pater Darby
Patterns – (all same engine)
Cylinder –4”x 4” stroke
Valve chest cover
Valve rod guide
Castings from above patterns.
Cylinders – 2 off (Machined)
Piston and rod assembly – 2 off (Machined)
Valve chest – 1 off ( Machined)
Cylinder cover – 1 off (Machined)
Slide valve –1 off
Crosshead assembly – 2 off machined ( one assembled with crank and con rod)
Crankshaft – 1 off machined (welded and appears straight)
Back columns – 2 off machined (assembled)
It is thought that this engine was a joint venture between Pater Darby and David King to replace the oversized engine in Myra. The parts available appear to be well made but are insufficient to build a twin engine, however, with a cut down crankshaft and remodelled bedplate a very nice and robust single 4” x 4” stroke engine could be constructed. A lot of time can be saved using these parts for anyone wishing to build an engine for a 25ft plus boat.
Offers around £150 with transport to be discussed.
Contact: Duncan Selby
Tel: 07884 264886
Twin Cylinder Simple Engine
24th July 2023
Newly built twin cylinder 2" bore 4" stroke simple engine. with flexible coupling and thrust bearing Fitted with forced lubrication and a wet sump. Also fitted with an engine driven water feed pump. Can be seen running on compressed air.
For more information and pictures of the engine please contact
Douglas Taylor on 01475 687395
Steam Outboard - Newcomen's atmospheric principle twin cylinder beam engine
7th May 2023
This experimental twin-cylinder atmospheric engine was built for the SBA Steam Outboard Competition in 2014, described in Funnel No 162.
During the competition, it was supplied with low pressure steam from a launch boiler but a domestic steam wallpaper stripper might produce enough steam to create a vacuum and turn it over.
Due to a house move the engine now needs a new home.
It is offered FREE of charge to a SBA member who would like to experiment with it.
Contact Mike Robinson (Winslow, Buckinghamshire)
Email: m dot j dot robinson321 at gmail dot com
Tel: 01296 712454
Small boiler sought for 4.5mtr launch
16th July 2022
Dutch SBA member Kees Hellinga is looking for a small boiler for his 4.5mtr launch. He thinks a David King 'Newton Coil' type might be ideal if anyone has one available, but if you have another compact type that might be suitable with a low vertical profile please drop Kees an email.
1907-built Marine engine suitable for large launch or steam narrowboat
April 23 2021
I have for sale, in excellent condition, an attractive Finnish-built compound condensing marine engine suitable for a large launch by Tehtaat Lehtoniemi & Taipale in 1907, their no 197.
Thought to be a rare survivor, the pictures show a substantially-built engine to suit a 30-40’ launch - or maybe a narrow boat - with a number of interesting features. It has a large (LP) crosshead driven air pump, a comprehensive ten-point drip lubrication system all fed from one cylindrical glass-ended reservoir and, to British eyes, an unusual inbuilt ratchet-driven mechanical lubricator at the hp end.
The engine is owned by a private museum of technology in Germany. Before that, it belonged to a German company for about 40 years but any earlier history is not known to me
Approximate dimensions (located on the euro pallet):
weight about 400 kg
We are looking for around 15,000 Euros (ca £13k) but this is of course negotiable and there is the possibility of transport from Germany to the UK
If you have any questions, please contact Adam Golly (in English or German) Email firstname.lastname@example.org
Boiler Suitable for 16' Boat
I have recently purchased my first steam boat project and am looking for a boiler, suitable for coal firing and preferably a VFT (although others considered) to drive a Taylor single engine (2.5" x 2.5" cylinder) in a 16' boat.
Before I dive in and start building a boiler, I thought it just worth asking on here as you never know what people have tucked away!
Not entirely sure what I'm after as there is still some freedom in the boat to move things about, but if you've anything that sounds like it may be of use please get in touch to discuss!
Four Cylinder Launch Engine
Bob McMillan’s partially built engine designed by Trefor Milns is for sale. He and Trefor were both building them at the same time.
We have all the casting patterns, the drawings etc. Bob had intended this engine to power his 'next boat' which was supposed to be about 36' long.
The engine is a 4 cylinder triple expansion and has already had a substantial amount of work done to it. Rough dimensions are L 100cm, W 50cm, H 75cm.
All sensible offer will be considered.
Sue Stefanik <email@example.com>