All three were given extensive renovations before entering service, including new boilers.
Matthew Stirling's locomotive designs often incorporated the design traditions established his father, including domeless boilers.
Almost any part of the locomotive, including boilers, was replaced or upgraded.
The ship's entire propulsion system, including screws, boilers, and engines were replaced with new equipment.
The heaviest construction work - including dismantling boilers that are often more than a century old - is expected to begin in the spring, when heat is not required.
The vital equipment, including boilers and ammunition magazines, were protected by hardened steel armor, as were the gun shields.
Battery Potter required a huge amount of machinery to operate the gun lifts, including boilers, steam pressure pumps and two accumulators.
All new equipment, including boilers, engines and generators were installed in the new building.
On the plus side, Ms. Brooke-Hitching has paid for most major capital improvements, including new boilers, plumbing, windows and doors.
In 1894-1895 these four locos were rebuilt under James Holden, the work including new boilers, steam brakes, and covered cabs.