Pressures around 1,000 psi proved difficult even for countries with established boiler industries. British and other experiments suffered serious shortfalls or failures. The comparison is with manufacturers producing thousands of boilers annually, supported by continuous production and an unbroken succession of trained personnel. Soviet boiler manufacture had suffered an interruption described as two decades. The recommendation is to build experience before attempting machinery this ambitious.
Notable Point · 27:26-28:34
Why advanced boilers needed accumulated manufacturing experience
Other nations' difficult experiments near 1,000 psi provide a warning about attempting advanced machinery without sustained industrial experience.