From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Comparison of specifications for K.L.G. FLB 30X and K.L.G. FL 30X spark plugs.
| Identifier | ExFiles\Box 162\2\ img004 | |
| Date | 23th February 1940 guessed | |
| K.L.G. FLB 30X REACH — — — — 0·700" LENGTH OF BARREL — 1·050" LENGTH OF INSULATOR — 2·350" INSULATOR MATERIAL — CORUNDITE REMARKS. FOR USE ON BENTLEY, SIMILAR IN DIMENSIONS TO FLB 30.X; BUT CONSIDERABLY HIGHER HEAT RESISTANCE. DEVELOPED TO REDUCE THE ELECTRODE BURNING ON BENTLEY CARS. ONLY RECOMMENDED FOR USE ON CARS SUBJECTED TO PROLONGED PERIODS OF HIGH SPEED K.L.G. FL 30 X REACH — — — — — 0·700" LENGTH OF BARREL — 0·750" LENGTH OF INSULATOR — 2·100" INSULATOR MATERIAL — CORUNDITE REMARKS. FOR USE ON THE 25/30 & BENTLEY. SAME REACH AS FLB 30X, BUT BARREL DIMENSIONS OF FE 30 X. AN ATTEMPT TO STANDARDISE THE FE 30.X. INSULATOR FOR BOTH ENGINES. THE MANUFACTURERS HAVE DIFFICULTY IN MAKING THE LONG INSULATOR OF THE FLB 30 X. | ||