New Rotax 447UL aircraft engine
More 39.6 HP @ 6500 RPM
34.0 ft-lb @ 6000 RPM
2-stroke engine specially developed for recreational
2 cylinders, cooled by fan
Piston ported intake
Single capacitor discharge Ignition (SCDI)
Single Bing carburetor
Mikuni pulse driven diaphragm fuel pump
Time Between Overhauls (TBO): 300 hours
2. Gearbox and starter combination
No gearbox, recoil starter
Use only if you are planning to install a third
party belt reduction drive.
Rotax 2-stroke aircraft engines produce their power
at high RPMs. Propellers need to turn much slower.
The B type gearbox is the most economical and
lightest model available. It is limited to a
propeller mass moment of inertia of 3000Kg/cm2
(about propeller mass moment of inertia)
Although the C and E type gearboxes are available
and compatible with the 447UL, they are not usually
necessary in most applications.
Contact us if you
are considering a 447UL with one of these gearboxes.
B type gearbox, recoil starter
Available with reduction ratios of 2.00:1, 2.24:1,
B type gearbox, electric starterElectric starter installed on the magneto end
(opposite the gearbox). Includes starter solenoid.
Washable, reusable air filter has a safety wire
tab for positive securing. Rotax/K&N
single carburetor air filter
Either install this air filter directly onto the
Can be rotated to suit most installations. Rotax
single carburetor intake silencer with Rotax/K&N air
Or install the intake silencer with air filter. A
major part of the noise of a Rotax 2 stroke aircraft
engine is the clatter emanating from the
carburetor's throat. The intake silencer efficiently
muffles this noise. Slight effect on power: about 2%
4. Exhaust system
side mount type exhaust system
Mounts on the side of the engine.
Choose the exhaust system which best suits your
Download our exhaust systems document which
illustrates their configurations and dimensions.
exhaust.pdf / 199Kb /
rear mount type exhaust system
Also known as 2x90° or Eipper style, mounts behind
or below the engine.
straight type exhaust system
Points straight back after the elbow.
Easy clamp-on installation
This after muffler further reduces the exhaust noise
while producing no adverse effect on performance.
5. Fuel system
Machined anodized aluminium and steel construction.
With fine steel filter element, drain valve and
provision for primer line connection.
A water strainer (
gascolator) should be part
of all aircraft fuel systems. It ensures that any
water that could have been drawn into the system
will not reach the engine.
Fine nylon mesh filter with transparent plastic
This high quality filter is easy to inspect.
High quality made in USA. Primer
A primer pump allows quicker and easier starting at
times when your carburetor float bowls are empty.
6. Electrical system
High quality, durable model.
The regulator-rectifier converts alternative current
produced by the engine's generator into 12 volt
direct current for use with instruments, lights,
radios, battery charging, etc.
13Ah capacity, 4.9 Kg / 10.8 lbs Genesis G13EP Battery
These batteries feature sealed pure lead technology
for the ultimate in safety (nonspillable, can be
installed in any position) and starting power.
There are too many different propeller brands,
types, configurations and options available to list
here. For more information about the propellers we
offer, please visit our
propellers page. You may also
contact us for a
8. Engine controls
Single carburetor cable with 90 degree housing
end. 96" length can be cut to fit most
installations. Aero Controls Throttle Cable
Stainless steel cables running inside
maintenance-free nylon and wound steel housings
ensure the smoothest and most precise operation.
More information about our
Aero Controls Choke CableSame as throttle cable.
Controls throttle and choke quadrant
Two levers with friction control knob.
9. Engine monitoring
Set of Westach 2" size instruments
2 CHT probes
2 EGT probes
panel size: 4xØ2"
$476.00 It is
essential to monitor the following engine parameters
to ensure its proper operation:
There are different ways to accomplish this. The
first is to use the classic analog (steam gauge
type) instruments. Tachometer (RPM)
Cylinder Head Temperature (CHT) for both cylinders
Exhaust Gas Temperature (EGT) for both cylinders
Tachometer, hourmeter, 2xCHT, 2xEGT, 2 CHT
probes, 2 EGT probes, panel size: 2-1/4", very small display, use only if
is very limited MGL Stratomaster EMS-503
The alternative is to use a digital all-in one
instrument. Our selection provides precise and
reliable readings on backlit liquid crystal displays
(LCD) and has the advantage of being able to trigger
a warning light to attract your attention if a
parameter is out of limits.
More information about
packages for the 447UL
: tachometer, hourmeter, 2xCHT, 2xEGT, 2 CHT probes, 2
EGT probes, panel size: 3-1/2", larger easy to read display MGL Stratomaster E1