Sport aviation engines for Ultralights, Homebuilts, Kitplanes, Gyrocopters, Helicopters, Powered Parachutes, Trykes, Hovercraft & Air Boats.

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3003 100 -110 hp - (Replaced Hirth F-30S - Jan. 2010)

The 3003 is the high performance version of the 3002 80hp engine. Basically a 3003 is the 3002 80hp engine equiped with high performance cylinders. With nearly l hp to every pound the 3003 has one of the highest power to weight ratios available. Factory recommended TBO is rated at 1000 Hrs. @ 75% power.

The 3003 incorporates Al-Nikasil coated cylinders for superior performance and reliability. Al-Nikasil in simple terms is a nickel based material, applied in a paste form, when super heated it becomes part of the cylinder itself. Al-Nikasil provides for a super low coefficient of friction, reducing engine heat and wear. The pistons and cylinders expand at the same rate thus providing for a seizure resistant engine. 3003 crankshaft is 4130 chromemolly steel. Heads, cylinders, rings, block casting, connecting rods and associated components are all of the highest grade alloys available


3003 shown with fan cooling, optional fuel injection and G-40 gearbox.


Fan Cooled & Electric Start
$10,500.00
Fan Cooled , Electric Start & G40 Gear Box
$12,120.00
Fuel Injection Option
$1,995.00

Flagship of the Hirth product line.

Model:
3003
Engine Type:
2 cycle, four cylinder
Bore:
72mm
Stroke:
64mm
Displacement:
1042cc
Compression:
9.5:1
3003 Fuel Injected: 3003 Carburated:
110Hp@6200rpm 105HpW/fan cooling 100Hp@6200rpm 95Hp W/fan cooling
ES Torque:
89ft/lbs @ 5700rpm
Ignition:
Dual CDI
(Capacitive digital Ign.)
Carburation:
Dual integral pumper-3003. Electronic fuel injection-3003
Fuel Pump:
Optional auxiliary external pneumatic /Electric on fuel injected ES
Lubrication:
Fuel mixed with oil @ 50:1
Rotation:
Counter clockwise, viewed from output end
Starter:
Alternator:
12 volt electric, recoil optional
250 watt/20 amp alternator standard
Cooling:
Free air, optional twin fan cooling
Weight:
105 lbs, including starter and complete exhaust, 129lbs with gearbox, full exhaust, and electric start. Fan cooling adds 8.5 lbs.
Reduction Units:
G-40 gearbox available in 2.03:l, 2.25:l, 2.64:l, 2.96:l and 3.33:1 ratios.(centrifugal clutch optional)
Drive Coupling:
Elastomeric dampener or centrifugal clutch




Engine Print




Customer Photo Gallery




3003 installed in Single place
Air Command Gyro
Picture #1 Front View



3003 installed in Pittbull Gyro
Picture #1 Side View



3003 installed in Paraski PPC
Picture #1 Close up




3003 installed Bandit Gyro
Picture #1 Close Up


3003 on Searay Amphibian
Picture #1 Picture #2
Picture #3 Picture #4



3003 on Rivercraft Airboat
Picture #1 Picture #2
Picture #3 Picture #4