JABIRU manufactures 3
different engines : a 2200 cc 4 cylinder of 85 hp, a 3300 cc
6 cylinder of 120 hp and a 5100 cc 8 cylinder of 180 hp
The quality of the engines
originates from the rational design, use of electronic ignition and
the metods of manufacture : computer guided machines machine the
majority of the engine parts out of blocs of chrome molybdenum alloy
steel and aluminium. The correct shape and size of each part is
tested by high precision computerised feeler guages, and memorised.
The founders of Jabiru
Aircraft Pty Ltd are convinced that their series of modern
lightweight engines will incite aircraft designers to create
new aircraft models.
Especially in France where
the Jabiru is well known by now for its reliability, the 4
cylinder makes it possible to gain weight which is important to keep
most UL's within the European microlight weight limits. Jabiru
Australia has also been of great help to propose complete engine
installation packages (Firewall Forward Kits) for many aircraft. (See
the FFW chapter)
Avia Import assists
aircraft constructors to install the jabiru in their airframe.
In the Queensland province
on the great barrier reef side of australia lies the city of
Bundaberg where most of the engine parts come from. The Cam-it
company machines most metal parts : the 2 halves of the crankcase,
the cylinder heads and several small parts all out of aluminium. The
cylinders, crankshaft, the valve rockers, the camshaft, the conrods
are machined out of chrome molybdenum alloy steel. They are checked
by magnaflux.
The oil sump is the only
part out of cast aluminium, all the other parts are machined.
Pistons come from automobile industry like parts of the ignition,
filters, sparkplugs and bearings.
These are direct drive
engines like the engines we are used to see in older type aircraft
without a reduction gearbox. The maximum number of revelutions is
only 3300 revs/minute. The engine is air cooled so there is only
one radiator (to cool the oil). Easy to understand that this modern
engine with double electronic ignition has become known as a very
reliable and simple aero engine with very limited maintenance costs.
Every engine has
succesfully passed a test run of one hour at the factory
Double electronic ignition : The engines feature a
double seperated electronic ignition, with a fixed advance
If the battery comes to
fail in flight the ignition will still do its job.
The alternator is
integrated in the flywheel (propulsed directly by the crankshaft) with rare earth magnets
The crankshaft has been
equipped with a thrust bearing at each end creating the possibilty
for either tractor or pusher installations
The pistons are provided at
G.M. and are machined to receive a piston pin clip. The piston
features 3 rings with the upper one in steel.
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vacuum pump |
The engine is
provided with a gear to receive
directly a vacuum pump, for which
different threaded attach points are
provided
The exhaust
and mufler are welded (mig) out of
stainless steel.
The exhaust is efficient, full
throttle both 2200 and 3300 engines
produce only 62 db at 1000 feet.
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The jabiru engines are manufactured
following a procedure recognised by the Australian Civil aviation
authorities , JABIRU recommends a TBO of 2000 hours for the
bottom part of the engine.
The engine is guaranteed 1 year or
200 hours, whichever comes first, starting at the first flight