Description / Abstract:
Introduction
World War II was one of the most profound events in the history
of mankind. It now seems like ancient history, and yet in the
relatively brief time span of 1939 to 1945 technology in all
aspects of warfare advanced in leaps and bounds—none more so than
in piston engine development.
Virtually the entire world was embroiled in a struggle of good
against evil. Aviation played a major part in this monumental
endeavor; indeed many major battles were fought solely in the air.
Who can forget the inspiring words spoken by Winston Churchill:
"Never in the field of human conflict was so much owed by so many
to so few." The "few," of course, were the brave Royal Air Force
(RAF) pilots, flying Supermarine Spitfires and Hawker Hurricanes,
who, outnumbered, fought against Messerschmitt Bf 109s and Bf 110s
as well as hordes of bombers, predominantly Heinkel He 111s and
Junkers Ju87s. Victory in the Battle of Britain saved Britain from
invasion by Germany, although it was an incredibly close-run thing.
Halfway across the world two years later in 1942, another pivotal
battle took place in the Pacific—the Battle of Midway—which again
was fought entirely by aircraft, although this time all the
aircraft that took part were based on aircraft carriers instead of
on land. Interestingly, the ships involved never saw the opposing
side, such was the scale of the battle. Historians are still
arguing about who was really the victor in the Battle of Midway. In
terms of losses it was probably a stalemate; however, the fact that
the Japanese had been stopped in their tracks represented a major
psychological victory for the United States.
Air battles often involved huge formations of overloaded bombers
struggling and fighting their way to the target. As the war
progressed, it was not unusual for the U.S. Eighth Air Force and
British Royal Air Force (RAF) to attack a target with 1000 bombers,
giving rise to the phrase "aluminum overcast" to describe an event
surely never to be repeated. Even transport aircraft hauling
muchneeded equipment to battle fronts were subjected to constant
harassment and attack by the opposing side. The resupply effort
undertaken by the Fourteenth Air Force flew some of the most
dangerous missions of World War II, flying over such incredibly
inhospitable territory as the Himalayas in overloaded Curtiss C-46
Commandos and Douglas C-47 Dakotas in poor weather, constantly
exposed to attack by Japanese fighters.
Such was the pace of the war that it was imperative to get the
finest equipment with best performance into service as quickly as
possible. This led to some of the shortest development times ever
achieved for complex military hardware. On occasion this
abbreviated development and testing cost dearly, as in the case of
the Boeing B-29, which suffered numerous problems during its
introduction to combat service, as did the Avro Manchester with its
failure-prone Rolls-Royce Vulture engines. Germany compromised its
long-range bombing capability because of the insurmountable
problems with the Daimler Benz DB 610 and DB 613 engines installed
in the Heinkel He 177. Japan forced many underdeveloped aircraft,
particularly those with poor engines, into combat during the later
stages of the war when they realized that the Zero, as fine an
airplane as it was, just was not competitive after 1942.
The struggle for air superiority by all sides focused on
squeezing the most performance out of the available technology as
well as Herculean efforts to advance technology. Although there
were many instances of aircraft with inferior performance coming
out victorious, the odds were obviously stacked against this
occurrence. Throughout the conflict a seesaw battle of technology
was waged. Part of this technological battle was in the area of
engine development, as this is the most influential aspect of the
performance of an aircraft, although it could be argued that an
aircraft featuring old-technology aerodynamics but with a superior
power plant will not outperform an aircraft with state-of-the-art
aerodynamics and a mediocre engine. For example, the P-40F powered
by the single-stage Rolls-Royce Merlin was still a mediocre
performer. Conversely, the P-51A, powered by the Allison V-1710,
was still a good performer; however, when the P-51 was redesigned
to take the two-stage Rolls-Royce Merlin, the aircraft came alive
and was arguably the finest fighter aircraft built in World War
II.
This book attempts to document the remarkable development that
took place with these mechanical masterpieces produced during the
conflict and that often shaped the tactics and strategy of the
battles.