 Also problematic were the flexible steam pipes to and from the cylinders of each swivelling engine; they were prone to leakage and wasting of power.These problems were partially solved.It is recorded by Rolt that difficulties encountered in 1909 with the design and construction of steam-tight flexible steam connections for the Garratt locomotive were solved by Beyer-Peacock's designers after studying a description of the spherical steam joints used on a Fairlie locomotive built for the Ffestiniog Railway followed by a visit to the FR to observe these locomotives at work.