[quote][b][url=/v3/forum/europe-de-lest-et-pacte-de-varsovie-32/topic/le-su-27-237/?post=42348#post-42348]d9pouces[/url] a dit le 02/01/2009 à 13:56 :[/b]

À propos du P-42 (le 3ème avion de série, le T10-15, allégé pour faire tomber des records américains), on peut lire dans une [url=http://www.aeronautics.ru/news/news002/supermaneuverability_001.htm]interview[/url] de son concepteur :
« The aircraft must be standing still like a sprinter on the start line. But when the engines are working the wheel brakes alone are not enough to hold the aircraft. To keep the fighter still we tried using a tank. A cable was connected to the hook on the lower part of the fuselage, but we weren't celebrating for long. After just a second of afterburners being engaged we heard a screeching sound and observed how the Su-27 started pulling the tank down the runway. We had to find something else to hold the plane. A nearby runway was under construction and we have noticed a huge "Caterpillar" bulldozer. We attached it to the tank, which was in turn attached to the aircraft. The fighter's start from dead stop was guaranteed.

From the very start, the engines are pushed to their limits. As soon as the cable locking mechanism is released the plane sprints down the runway and starts gaining altitude in a vertical flight. While flying vertically up the plane breaks the sound barrier. No other aircraft, not even a space booster at such low altitude can achieve supersonic speed in vertical climb. Normally this happens only in the upper regions of the atmosphere where air density is very low. However, we could achieve supersonic flight at an altitude of just 2000-3000 meters »


Passer le mur du son à la verticale à basse altitude... pas mal, quand même :shock:[/quote]