Aero Cors-Air USA LLC is proud to introduce a new and more powerful version of the Cors-Air engine line, The Black Bull.
This engine was designed for those pilots who want even more power, shorter take-off runs and a very high climb rates.
The Cors-Air Black Bull can be used for foot launch PPG, PPG Trikes, Delta Trikes, ultralight airplanes and UAV (DRONES)
This new powerplant is still light compared to other brands its class, it is sturdy, reliable and user friendly, just as the rest of the Cors-Air Motors engines.
After many tests on the bench and in the air where flown by well known PPG pilots and , in the harshest and most "unfriendly" environments,
changes and improvements performed on the prototypes the final version of the Cors-Air Black Bull prototype passed all tests with flying colors.
The first engines left the factory in Italy by the end of November 2015 and ever since, we did not hear from a single pilot who regretted buying this mighty powerplant!
The Black Bull is the most powerful engine in our "fleet" which consists of Cors-Air M19/Black Magic, Black Devil LIGHT and Black Devil LIGHT/SPORT.
Cors-Air "Black Bull" engine specifications:
CYCLE: TWO STROKE
TOTAL DISPLACEMENT: 235 C.C.
COMPRESSION RATIO: 10.5:1
COOLING: air cooled and with optional cooling shroud
Maximum RPM: 8000 RPM
PISTON: Two aviation rated chrome plated and beveled rings
Cylinder HEAD: CAST AND MACHINED Aluminum alloy with high silicone percentage
Combustion chamber with improved squish
CRANKCASE: CAST IN G-AL SI 9 UNI 3051 ALLOY SUBSEQUENTLY TREATED AND ANODIZED AGAINST SEA SALT
CONNECTING ROD: COPPER PLATED STEEL 18 NI CR MO5 CONNECTED TO THE DRIVE
CRANKSHAFT: :WITH VERY PRECISE HIGH SPEED SILVER-PLATED ROLLER BEARINGS
CARBURETION: DIAPHRAGM OR EFI (ELECTRONIC FUEL INJECTION)
CRANKCASE FUEL DELIVERY: SIX BLADE REED-VALVE SYSTEM CONNECTED TO THE CRANKCASE
IGNITION: ELECTRONIC CDI (ELECTRIC VERSION) WITH DOUBLE SPARK PER STROKE FOR SAFETY AND CLEAN BURN
IN-FLIGHT BATTERY CHARGING SYSTEM not available yet
SPARK PLUG: NGK BR10ES OR SIMILAR
SYSTEM: SIX PORT DISTRIBUTION / CYLINDER TRANSFER AND EXHAUST WITH BOOSTER (TUNED EXHAUST)
CYLINDER: ALUMINUM ALLOY WITH SPECIAL "NICASIL" COATING
REDUCTION: WITH POLY V BELT AVAILABLE IN 1:3.0 — 1:2,88
CYLINDER HEAD TEMPERATURE: MAX TEMPERATURE 230C \ 446F MEASURED UNDER SPARK PLUG
EXHAUST: TUNED WITH 3 (THREE) THREE FLEXIBLE CONNECTIONS TO BETTER DISSIPATE VIBRATIONS
EXHAUST GAS TEMPERATURE: NOT EXCEEDING 590 C \ 1094F
ENGINE MOUNTING: BY 5 SHOCK ABSORBING RUBBER MOUNTS (VIBRATION INSULATORS) (#5 mount) should support from under the engine
CRANKSHAFT ROTATION: COUNTERCLOCKWISE
CRANKSHAFT CONSTRUCTION: 18 NI CR MO5 ALLOY WITH 5 THERMO TREATMENTS ON EVERY COMPONENT
ROLLER BEARINGS: DESIGNED FOR HIGH RPM, CLASS C3
CRANKCASE OIL SEALS: DOUBLE LIP, MADE OF "VITON" WITH VERY HIGH RESISTANCE AND LONG LIFE
FUEL / OIL RATIO: MIXTURE 3% - 3,5% WITH SYNTHETIC OIL; SUGGESTED BRANDS: MALOSSI7.1—WLADOIL K2T
—ELF 2T MOTO, CASTROL TTS, HONDA HP2 FULLY SYNTHETIC RACING OIL
ENGINE WEIGHT: HAND START KG 12,55 + KG 3,80 FOR THE EXHAUST
ELECTRIC START KG 13,40 + KG3,8 0 FOR THE EXHAUST
Engine schematics and dimensions in millimeters:
Simplified measurements in inch:
Engine Depth: 9 inch /distance between all 4(four) engine mounts (vibration insulators): 6,5 inch
Engine introductory prices ended July 30 2015 :
Black Bull Electric start: USD 3,4750.00 plus shipping (cooling shroud optional) no battery charging
Black Bull manual start engine: USD 3,340.00 plus shipping (cooling shroud optional)
Black Bull Hybrid engine (hand start and electric start) USD 3,520.00 plus shipping
The electric start or hybrid Black Bull does not charge the battery in flight
We recommend buying the Hybrid engine (with el. start and hand start) and using a 12 Volt Sealed Lead Acid battery
of 3,5 Ah capacity, one can get from 20- to 25 cold starts which is plenty for a flying session
NOTE: If five (5) or more engines are purchased in the same time, dealer's prices can be applied