Knowledge Base

These documents are written by members of the HBAA and are what we consider to be general knowledge in a particular aspect of the operation or maintenance of a heritage boiler or tractor. We are adding to this library as appropriate topics arise and as we have time. If there is some topic you would like to see covered here, let us know.

This library is only available to current paid-up members of the HBAA. You must be logged in to view the documents.

Document NameDate
ACID DEW POINT CORROSION of the FIRESIDE & EXTERNAL STEEL WORK on COAL FIRED STEAM TRACTION ENGINE BOILERS2020-08
CARRYOVER, FOAMING & PRIMING – JUST WHAT ARE THEY?2020-07
AN INTRODUCTION TO STEAM TRACTION ENGINE GEARS & GEAR TRAINS2019-12
THE PICKERING FLYBALL THROTTLING GOVERNOR and ITS OPERATION2020-03
THE SCIENCE OF STEAM INJECTOR OPERATION2019-10
STEAM TRACTION ENGINE FIREBOX COMBUSTION ARCH2020-06