"FX-89" F-104G flown by Bill Ongena during the "Touch-Roll-Touch" Maneuver at the Melsbroek Airshow on June 25, 1967

“This one shows Belgian Air Force pilot Bill Ongena doing the so-called "Touch-Roll-Touch",
but other pilots of other air forces have done it as well.
He approaches the runway with gear and take-off flaps extended, touches down briefly, applies full power and pulls up to about 50 feet
while initiating a roll on his upward trajectory. Then comes a power reduction, possibly speed brake extension to slow down, and descent
to another touch-and-go. With the landing gear down, full aileron travel (20°) is available, producing a sufficiently good rate to complete a 360° roll
without the nose dropping dangerously low. (With landing gear up, the aileron throw is only 10°).
It was strictly a “show” maneuver to demonstrate the controllability of the airplane, and had no practical application.
After Belgian pilot Jacobs was killed during a practice flight, the maneuver was prohibited.” Wolfgang Czaia

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