Hungarian Yak 9 - "Sea Hawk"
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Alexsander Yakolevs series of single engine 'Yak' fighters are generally
considered the finest and most versatile piston engined combat aircraft
produced by the Soviet Union during World War II. They were involved in
combat in all theatres the Soviet air force was active in and over 14,500
were built (some sources say 16,000). Through constant refinement, by
wars ends they were so widely feared that Luftwaffe commanders instructed
pilots to avoid combat with them if possible
Yakovlev
and his designers were able to upgrade and refine the basic 'Yak' airframe
as the war progressed and requirements changed. In April 1944 the Yak
9U was introduced incorporating many improvements including full metal
construction, a 1,650-hp Klimov VK-107A engine and top speed of 434 mph
in factory trim. This and other late model Yak 9 variants were widely
used by all Soviet satellite countries following World War II thru the
mid 1950s.
Hungary declared itself a free republic following the end of World
War II. In mid 1949 new elections were held, the Communists and their
supporters won and the Republic was then established. Leader Mˇtyˇs Rˇkosi
was a believer in the value of technology to promote the socialist ideal.
The announcement of the Schneider Cups revival was seen as the perfect
venue to promote advancements in the workers paradise of the east following
the war.
Since
their entry into the race was late and access to western performance equipment
severely limited by most anti-communist western governments, many creative
methods were used the acquire whatever components were needed to build
their racing floatplane which was named HalˇszsŰlyom or 'Sea Hawk' following
the longstanding Hungarian tradition of naming aircraft after birds. A
former German military equipment repair facility along the Lake Balaton
in central Hungary was acquired and turned into a base of operations/
development for the project.
At the same time the recently elected Czech Communist government was
in the midst of eliminating inherited western military equipment and their
leader Klement Gottwald was more than happy to trade decadent Spitfire
and Mosquito parts for fine Hungarian apricot brandy and Tokaj wine. This
spirit of comradeship greatly benefited the Hungarian entry in the 1949
Schneider Cup as the actual plane used was a gift from Soviet leader Stalin
promoting 'solidarity of the working classes'. Upon its arrival, a group
of Hungarian aviation enthusiasts and ex-RHAF (Royal Hungarian Air Force)
pilots and mechanics transferred from the main wartime military airbase
at Ferihegy as well as the Weiss Manfred aero engine facility to begin
immediate work at Lake Balaton
Since
the Yak series had already evolved a great deal thru the war, it easily
lent itself to additional modifications for use as a racing floatplane.
The standard wings were clipped and the engine shop decided with the amount
of time available, the best way to upgrade power was to emulate the tricks
Rolls-Royce had used in the development of their aero engines so several
ex-Czech Merlins where taken apart and carefully studied. This along with
help from eager Soviet advisors and engine specialists allowed an increase
in the Klimov engines horsepower to 2150 thru reworking the intake and
valve train, ejector exhausts, methanol injection and use of 'donated'
130 octane aviation fuel from leftover Allied stocks. A Spitfire paddle
bladed propeller was installed to transfer as much power as possible with
the uprated engine.
The streamlined shape and generally fine finish of the DH Mosquito
prompted the mechanics to smoothen the wing and rear fuselage as well
as relocate the radiators and oil cooler into the leading edge to decrease
residual dragand clean up the lower side of the wing for a better airfoil.
An extended lower fuselage strake as well as modified and enlarged rudder
were also incorporated to promote additional directional stability.
Since
Hungary is a landlocked country, suitable floats were found and donated
after an exhaustive search using wartime Luftwaffe records.The basic colors
used are the traditional Hungarian red, white and green plus standard
Russian military aircraft colors and showed a 'unity among socialist brothers'
prevalent at the time. The Yak also became the first aircraft on the Hungarian
civil registry following the end of World War II.
The model is based on the ICM kit plus numerous bits from the spares
box. Most of the kit parts needed a great deal of cleanup to work though
the detail itself was not bad. The floats are He-51 and propeller from
a Spitfire Mk 9. A Typhoon canopy was also used. The decals were created
with Adobe Illustrator following a great deal of research on post war
Hungarian civil aircraft and were printed by Norm Filer.
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