Hi,I recently encountered this strange problem and i wonder if anyone can help:Recently i did a real world flight to Berlin as a passenger and then i wanted to try it in the sim. So i tried to do some practice off line over there at Berlin Schoenefeld airport EDDB. While making the take off run on Rwy25L/07R, the aircraft starts "bouncing" up and down on the runway and eventually crashes above a certain acceleration speed as if the runway is unpaved, or as if you try to accelerate on an off-runway terrain surface. I tried it with the small cesna too, which it did not crash because it gets airborne sooner but it seems like you are running on unpaved, unprepared runway surface. The other runway 25R/07L is ok.Any ideas?Thanx in advance for your helpDimitris Diamantakos - Athens GreeceVatsim Member

Could be heavy crosswinds. I notice that I get wicked bouncing on crosswinds during roll in GA aircraft unless I use yoke. Try counteracting the crosswinds by moving your ailerons and elevator (if necessary) to counteract them until you start approaching Vr.________________________________________________________________________________________________Intel D975XBX2 'Bad Axe 2' | Intel Core 2 Duo E6600 @ 3.20Ghz | 2 GB Super Talent DDR2 800 | Big Typhoon VX | eVGA 8800GTS @ 565/900 | Seagate 2x320GB SATA RAID-0 | OCZ GameXStream 700W | Creative X-Fi | Silverstone TJ-09BW | Matrox Triplehead Setup

Unfortunately it's not the crosswinds. It's the runway surface for sure.There's another topic further up from a guy with exactly the same problem as mine. Topic #13831 by ThrottleUp.