21. The transonic period begins when first zones of M > 1 flow appear around the object. 22. The results of these tests confirmed the drag reduction offered by swept wings at transonic speeds. 23. Bow shocks formed in solar winds are a direct result of transonic winds from a star. 24. He joined the Transonic Combustion, Inc . Board of Directors on May 24, 2010. 25. There were projectiles produced prior to the patent that remain stable through the transonic flight regime. 26. Oblique shock waves are a phenomena only experienced during transonic , sonic, and hypersonic speeds. 27. The group chooses " Primal " for Teon, and Laurie remains with " Transonic ". 28. At transonic speeds, the flow field around the object includes both sub-and supersonic parts. 29. Thus the transonic regime is described by a different ( and much more difficult ) mathematical treatment. 30. Generally such transonic airfoils and also the supersonic airfoils have a low camber to reduce drag divergence.