Sino Swearingen Aircraft

Corporation’s SJ30-2 has passed the

up-bending ultimate load tests on

the main wing.

Dr Carl Chen, ceo and president of

Sino Swearingen stated: “Results

validate the critical structural

strength of the main wing of

the aircraft.

“The entire test team, led by John

Vieger and Paul Romano, has done an

excellent job. We thank them and the

FAA for their excellent support.”

Vice president engineering, David

Gee described the testing: “The main

wing must first undergo massive

forces in a number of configurations

to limit loads. These loads are the

amount of forces exerted on the wing

in the absolute worst case, real-life

scenarios, such as extreme

turbulence and G forces.

“Then the main wing is subjected

to the massive ultimate load testing.

This is the crucial testing of 150 per

cent of additional forces and loads

over those experienced in the worst

case limit load tests.”

John Vieger, manager of structure

analysis, stated: “The test actually

includes three ultimate load cases:

wing up-bending, fuselage downbending

and horizontal tail downbending

and everything is combined

in one test.

“In addition we connected 562

sensors to the aircraft and we were

taking readings from all sensors

simultaneously throughout the test,”

he added.