Without wind tunnel testing and other testing, testing in flight would be even more dangerous to the test pilot, and anyone killed should the aeroplane crash.
The aircraft would nose-dive ! The flaps are used during flight to help the plane gain or lose height in conjunction with the engines.
AFOTEC
The 747 and A380 both have a flight engineer on board as well as a flight supervisor who has an office behind the cockpit.
Some inventions for flight engineers are the supercritical wing, and the rotary control mechanism.
caada
In a wind tunnel test the plane never leaves the ground. It's only to see how the wind will affect the plane. When your testing during real flight, your actually in the sky and really flying the plane.
This is an approximate direct (straight line) distance. During actual travel, this distance may change if a different flight route is chosen. The distance between the two places in miles is:3950
This is an approximate direct (straight line) distance. During actual travel, this distance may change if a different flight route is chosen. The distance between the two places in miles is:420
The distance between the two places is 3163 miles. This is an approximate direct (straight line) distance. During actual travel, this distance may change if a different flight route is chosen.
The distance between the two places is 2557 miles. This is an approximate direct (straight line) distance. During actual travel, this distance may change if a different flight route is chosen.
The distance between the two places is 1210 miles. This is an approximate direct (straight line) distance. During actual travel, this distance may change if a different flight route is chosen.
The distance between the two places is 2327 miles. This is an approximate direct (straight line) distance. During actual travel, this distance may change if a different flight route is chosen.
This is an approximate direct (straight line) distance. During actual travel, this distance may change if a different flight route is chosen. The distance between the two places in miles is:1770
The distance between the two places is 7619 miles. This is an approximate direct (straight line) distance. During actual travel, this distance may change if a different flight route is chosen.
The distance between the two places is 2097 miles. This is an approximate direct (straight line) distance. During actual travel, this distance may change if a different flight route is chosen.
The distance between the two places is 2249 miles. This is an approximate direct (straight line) distance. During actual travel, this distance may change if a different flight route is chosen.
The distance between the two places is about 2123 miles. This is an approximate direct (straight line) distance. During actual travel, this distance may change if a different flight route is chosen.