Sino Swearingen has successfully completed Mach 0.90 high speed dive testing with its SJ30-2 twinjet. The test is designed to ensure aircraft conform to the Mmo (maximum mach operating speed) of Mach .83 and that they do not experience flutter at speeds of up to Mach .90.

The tests, completed at Mojave airport, California, were flown by project test pilot John Siemens with second control pilots Erick Kinney and Tim Fitzgerald.

“The SJ30-2 is now solidly the world’s fastest light business jet in the 20,000 lbs and under category and is even faster than some medium and heavier twin jets,” commented ceo and president Dr Carl Chen.

SSAC project test pilot John Siemens said: “During the testing, handling was excellent and above Mach .86 high speed buffet is very minor, stability and control is good and the airplane showed exemplary roll control at speeds of up to .90 Mach above 28,300 feet and 372 knots indicated below 28,300 feet.”

Bob Kromer, senior manager of flight test and flight operations, said: “With its operating envelope, the SJ30 will fit perfectly into the high speed traffic flow with other jet aircraft, not only while en route but during high speed descents as well.

“There is nothing worse for a jet pilot than to be asked to move aside or to a lower altitude for higher speed, overtaking traffic. With a .83 Mach/320KIAS Mmo/Vmo, SJ30 owners will be the ones passing slower, less capable jets temporarily in front.”