The new certification standard requires the IO-550-R engine to produce its rated 310 horsepower (hp) within a margin of plus 5%, minus 0%. The older certification standard for the “285 hp” IO-520 is plus or minus 2.5%. This means that the manufacturer guarantees that your new IO-550-R engine will produce at least 310 hp and possibly more, while an “out-of-the-box” IO-520 engine might actually produce less than 285 hp. Also, the maximum continuous power rating for your IO-550-R engine is 310 hp, compared to 285 hp for the IO-520 engine.
The 550 T. I. gives the operator a greater assurance that the aircraft will perform as expected.
The STC’s quieter, smoother and more efficient 82-inch three-blade Hartzell Super Scimitar propeller reduces vibration and noise levels not previously available in the Bonanza. This makes the aircraft much quieter and smoother, inside and out. Pilot and passenger comfort is improved and the days of window rattling Bonanza takeoffs are gone.
Atlantic Aero’s 550 T.I. STC has been approved for installation in models S35 through the A36 and the F33A.
The enhanced performance, safety and comfort of the 550 T.I. STC transforms the heavy-hauling Bonanza into a Quiet, Smooth, Speedster!