Graham White

Retired from the IBM Corporation, Graham White spent most of his working career as a mechanical engineer. Since retirement he has taken up a number of projects including being the former Vice President of the Aircraft Engine Historical Society ( He was also Executive Editor of AEHS's magazine; "Torque Meter". He has held numerous positions for various organizations such as VP of several EAA Chapters, board of director for the Florida region of the Rolls-Royce Owners Club, etc. White has authored numerous magazine articles and currently has a regular column in EAA Wairbirds magazine with the by-line of "News from the White House." He's also written three books on aircraft engines: "Allied Aircraft Piston Engines of World War II" and "R-2800 - Pratt & Whitney's Dependable Masterpiece". Both are published by the Society of Automotive Engineers ( He has also written a book on the Pratt & Whitney R-4360 titled "R-4360 - Pratt & Whitney's Major Miracle" published by Specialty Press. White is also an avid collector of aviation history including engines that he restores to running condition - he has six in his collection. In addition to his aircraft engines, White restored a 1935 Rolls-Royce Phantom II and a 1982 Honda CBX motorcycle.


Unlimited Power.
This presentation will highlight the more significant engines that have powered Unlimited Class air racers. Engines such as the Allison V-1710, Rolls-Royce Merlin, Rolls-Royce Griffon, P&W R-2800, P&W R-4360 and Wright R-3350 will be covered. Questions such as; how come a Merlin, with less than half the displacement of an R-4360 can easily outperform its larger competitors will be answered. ADI, spray bars, spray nozzles, engine modifications, cooling and other fascinating aspects of high performance engines will be described in detail. Hanging around the pits at Reno, buzz terms such as "420 gearing", "120 inches", "sneezing", "transport head and banks" plus many others are thrown around and yet many folks do not fully understand what these terms mean. Now you will after listening to this presentation. Whether you are a hard core "gear head" or simply have a passing interest in what powers the ultimate hot rods, this presentation will be informative and fun.

Pratt & Whitney's Major Miracle

Pratt & Whitney's R-4360 was the largest and most complex aircraft piston engine to enter series production in the western world. One could say it was the personification of "there 'aint no replacement for displacement..!!". After cancellation of P&W's liquid cooled sleeve valve efforts the R-4360 was rushed into development during WWII. Although it did not quite achieve that goal it played a significant part in post WWII military aviation and to a lesser degree, commercial aviation. This presentation will document the horrendous engineering challenges facing P&W including cooling, vibration, bearings, superchargers (including turbosupercharging and variable discharge turbines), etc. Answers to questions such as how to mount such a behemoth, cowl designs, nacelle design, cooling flow, oil cooling, propellers, including dual ration…etc., will be addressed. Finally, how many R-4360s are still in service?

Schneider Trophy Contest
The Schneider Trophy Contest held from 1913 to 1931 advanced the state of the art in leaps and bounds with regards to aerodynamics, propellers, cooling, heat rejection, engine development, fuel development, structures - to name just a few. The Schneider Trophy Contest was the "space race" of the 1920s' and 1930s'. 100 Octane fuel laced with tetra-ethyl lead, methanol, benzene resulted in "super" fuels being utilized to full advantage. Superchargers capable of producing in excess of 70in.Hg. manifold pressure, surface cooling, aircraft capable of exceeding 400mph were just a few of the resulting developments of these fascinating aircraft.