AOPA Pilot Magazine - October 2014 - 34

PILOT BRIEFING
|

NEWS

|

SMA building larger diesel engines
Developing two new, more powerful variants
BY THOMAS A. HORNE

75 years ago
THIS MONTH

AOPA was founded May 15, 1939.
It is October 1939. The last Polish army has been
defeated. The Luftwaffe lost 285 aircraft in the Polish
campaign; Poland lost 333 aircraft. Hitler announces
his plan to regulate the "Jewish problem," and the
Nazis require Jews to wear the Star of David.

]

OCTOBER 1
Winston Churchill calls the Soviets "a riddle wrapped
in a mystery inside an enigma."
OCTOBER 8
Germany annexes western
Poland. The first Jewish
ghetto in Nazi-occupied
Europe is established in
Poland.
OCTOBER 11
Albert Einstein informs President
Franklin D. Roosevelt of the
possibilities of an atomic bomb.

SMA ISN'T STANDING STILL .
Now that the first of its
turbo- diesel engines-the
four-cylinder, 230-horsepower
SR305-230E-has been chosen to power Cessna's new Jet
A-powered Skylane JT-A, the
company announced a project
to develop two new, more powerful variants.
Worldwide, there are a total
of 45 airplanes flying with the
SR305-230E, and SMA has run
these engines to TBO on test
stands. After the tests were
complete, a disassembly and
inspection of these engines
showed no anomalies. On the
other hand, a Skylane JT-A
suffered an engine failure during its flight test phase. The
problem was traced to burrs
on the SR305's crankshaft-
burrs caused by manufacturing
defects that have since been
corrected at the factory.
The first follow-on engine
is being designed to put out
between 260 horsepower and
285 horsepower. Under the
SR305-XX project name, SMA
plans to use the same technology of its predecessor and
adapt it for higher takeoff and

34 | AOPA PILOT October 2014

cruise power. Currently several
prototype demonstrators are
undergoing endurance tests.
The other engine is the
SR460, designed to develop
between 330 horsepower and
400 horsepower. This six-cylinder turbo diesel has dual
turbochargers and is being
pitched to manufacturers of
single- and multiengine piston
airplanes, as well as helicopters. Like the SR305 engine,
an electronic control unit
(ECU) optimizes engine starts,
provides maximum power
according to ambient conditions, and controls engine speed
at low power levels. At high
power levels, the diesel engine's
compression-ignition characteristics sustain combustion.
There will also be a mechanical
backup to the ECU.
The SR460 will maintain
full power up to its critical altitude of 10,000 feet mean sea
level, SMA said, and will have a
TBO greater than 2,000 hours.
So far, two to three airframe
manufacturers have expressed
interest in the SR460, SMA said.
EMAIL tom.horne@aopa.org

[

OCTOBER 14
The German submarine
U-47 sinks the British
battleship HMS Royal Oak.

[

OCTOBER 15
The New York
Municipal Airport
(later renamed
La Guardia Airport)
is dedicated.

OCTOBER 16
The Luftwaffe attacks its first British targets, Royal
Navy warships in the Firth of Forth.
OCTOBER 17
Mr. Smith Goes to Washington premieres in
Washington, D.C., starring Jimmy Stewart.
OCTOBER 22
NBC broadcasts the first
televised National Football
League game. The Philadelphia
Eagles fall to the Brooklyn
Dodgers, 23-14.

[

OCTOBER 24
Nylon stockings go on sale
for the first time anywhere
in Wilmington, Delaware.

OCTOBER 28
A British Spitfire shoots down a German Heinkel
He 111 over Scotland.



AOPA Pilot Magazine - October 2014

Table of Contents for the Digital Edition of AOPA Pilot Magazine - October 2014

Contents
AOPA Pilot Magazine - October 2014 - Cover1
AOPA Pilot Magazine - October 2014 - Cover2
AOPA Pilot Magazine - October 2014 - Contents
AOPA Pilot Magazine - October 2014 - 2
AOPA Pilot Magazine - October 2014 - 3
AOPA Pilot Magazine - October 2014 - 4
AOPA Pilot Magazine - October 2014 - 5
AOPA Pilot Magazine - October 2014 - 6
AOPA Pilot Magazine - October 2014 - 7
AOPA Pilot Magazine - October 2014 - 8
AOPA Pilot Magazine - October 2014 - 9
AOPA Pilot Magazine - October 2014 - 10
AOPA Pilot Magazine - October 2014 - 11
AOPA Pilot Magazine - October 2014 - 12
AOPA Pilot Magazine - October 2014 - 13
AOPA Pilot Magazine - October 2014 - 14
AOPA Pilot Magazine - October 2014 - 15
AOPA Pilot Magazine - October 2014 - 16
AOPA Pilot Magazine - October 2014 - 17
AOPA Pilot Magazine - October 2014 - 18
AOPA Pilot Magazine - October 2014 - 19
AOPA Pilot Magazine - October 2014 - 20
AOPA Pilot Magazine - October 2014 - 21
AOPA Pilot Magazine - October 2014 - 22
AOPA Pilot Magazine - October 2014 - 23
AOPA Pilot Magazine - October 2014 - 24
AOPA Pilot Magazine - October 2014 - 25
AOPA Pilot Magazine - October 2014 - 26
AOPA Pilot Magazine - October 2014 - 27
AOPA Pilot Magazine - October 2014 - 28
AOPA Pilot Magazine - October 2014 - 29
AOPA Pilot Magazine - October 2014 - 30
AOPA Pilot Magazine - October 2014 - 31
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AOPA Pilot Magazine - October 2014 - 33
AOPA Pilot Magazine - October 2014 - 34
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AOPA Pilot Magazine - October 2014 - 53
AOPA Pilot Magazine - October 2014 - 54
AOPA Pilot Magazine - October 2014 - 55
AOPA Pilot Magazine - October 2014 - 56
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AOPA Pilot Magazine - October 2014 - 58
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AOPA Pilot Magazine - October 2014 - 62
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AOPA Pilot Magazine - October 2014 - 64
AOPA Pilot Magazine - October 2014 - R-1
AOPA Pilot Magazine - October 2014 - R-2
AOPA Pilot Magazine - October 2014 - R-3
AOPA Pilot Magazine - October 2014 - R-4
AOPA Pilot Magazine - October 2014 - 65
AOPA Pilot Magazine - October 2014 - 65a
AOPA Pilot Magazine - October 2014 - 65b
AOPA Pilot Magazine - October 2014 - 66
AOPA Pilot Magazine - October 2014 - 67
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AOPA Pilot Magazine - October 2014 - Cover3
AOPA Pilot Magazine - October 2014 - Cover4
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