Hi, I was on autopilot final approach at Oslo Norway runway 01L when suddenly the aircraft bank to the right and went down. I've never had time to turn off the autopilot that the aircraft had already hit the ground. Somebody has an idea what's happened. Thanks and regards.L'maire

Some clues might help.About what was your speed on final? Did you set the speed bugs? Your Vr?Was autopilot APR captured? What kind of approach, ILS? RNAV (GPS)? If ILS was both LOC and GS indication on the PFD okay? About how high above terrain when even happened?Can you reproduce it?

L'maire,Were you, by any chance using Active Sky X? If so, check your settings and confirm that you have wake turbulence turned off.Wake turbulence is not well modeled in Active Sky, and will cause unrecoverable loss of control at low altitudes.

L'maire,Were you, by any chance using Active Sky X? If so, check your settings and confirm that you have wake turbulence turned off.Wake turbulence is not well modeled in Active Sky, and will cause unrecoverable loss of control at low altitudes.

I believe you have it! Same thing happened to me last night. I was on a very stable long final. I was using ActiveSky X and Radar Contact. RC called me traffic at 1 o'clock ONE MILE about 500 feet below me. The second I got the alert the plane rolled HARD right and plunged. I pushed the AP disconnect and got her righted and finished the approach to a good landing. But we rolled almost inverted! The passengers could NOT have been happy! I would have blamed the plane if I hadn't gotten the traffic alert. LOVE THIS PLANE more every day!EddieKABQ

Eddie,This is a problem we've had since FS9...the Aeroworx King Air would take random nose dives on short final, and someone finally figured out that it was the wake turbulence modeling in AS4.5 that was doing it. I love Active Sky -- great piece of software -- but the wake turbulence feature is far too strong.I had this happen for the first time in the JS41 last weekend when I was shooting an approach into YBBN -- a quick test of something or other and I didn't bother to kill the AI or call ATC. Turned out that I was landing in calm winds against the traffic, and we rolled over immediately after an AI plane flew over us headed in the other direction. I had it happen again on Sunday morning when I was taking off (this time with clearance) and a plane that had been one mile out when I was cleared to take the runway flew over just as I got the gear up. In we went from about a hundred feet up.Turned off wake turbulence and no more problems.

Yeah, it's pretty well known that AS's wake turbulence simulation is way too violent. I've seen it flip the 744 and MD-11... not very likely lol.

Some years ago I was invited to the B767 level D sim at the SAS Academy at Stockholm, Arlanda. After doing a normal takeoff the instructor moved the plane up to 5000 ft and I was told to "be ready". All of a sudden the cockpit shook (sp?) violently and it took a few seconds for me to realise that we were more or less inverted. In all honesty I can't say exactly how many degrees we had rolled. I lost about 2500 ft before having rolled back again.The danish Captain that was also present immediately wanted to try that scenario. He lost about 1000 ft, but he obviously knew what was coming. Obviously this was another simulation, but it should be in the ballpark regarding the forces involved?This is no comment on the accuracy of Active Sky or how powerful WT can become in the real world. I never fly in places were this is an issue myself IRL but if I someday do I'll be very cautious since I fly light aircraft.Cheers!

yep can confirm wake turbulance can cause this, maybe a lttle unrealistic especially as the sim can often force you to take aproaches between traffic thats approaching itself at unrealistic speeds... Just approached Nice last night and had to recover at about 200ft from being flipped into a 60 degree left bank... But I did notice I had gotten to close without noticing to the aircraft in front, but I also knew I had traffic behind me as well so kind of got sucked into wanting to stay ahead of them and forgot I was getting too close.. So in this case the WT was probably correct

Good morning everybody,Just have a few seconds but yes i use ASA, try to have a look on that later today. Thank you all.RegardsL'maire

I've just tried the same flight with same approach at Oslo, but with wake turbulence turned off and that was a perfect landing...Hope that was the problem.Thanks againL'maire

This is no comment on the accuracy of Active Sky or how powerful WT can become in the real world. I never fly in places were this is an issue myself IRL but if I someday do I'll be very cautious since I fly light aircraft.

I experienced wake turbulence during my multiengine training in a Seneca while under the hood. I was number two behind a Lockheed Electra in trail about 5 miles on an ILS at Epply (Omaha NE) and just inside the outer marker on glideslope the airplane started an uncommanded roll. Full deflection stopped the roll at about 60 deg, pitch was controllable and glideslope deviation was manageable. I did not have to abort the approach but after I regained control the hood came off.

Similar story to Dan. I was in training for my private pilot and we landed at KABE. We we behind a Wisconsin Air CRJ-200 who departed first. You could tell the plane was heavy because it took a long time before Vr. We were cleared to enter the runway and hold after the CRJ completed the take-off roll and was past us a considerable amount. I also has a Piedmont Dash 8 Q300 behind me in line for departure after us. We were flying a C172 Skyhawk. After the CRJ was far enough out, we were given clearance to take-off but to caution wake turbulence. While nothing major happened, upon wheels up it was still very bumpy and I couldn't beleive that the turbulence still existed since the CRJ was already miles away from us and made a left turn before we even moved an inch from our hold on the runway. It was quite an experience and something I think about to this day. These Jet engines are so overpowered and the forces they produce can easily create something bad happening if not handled well by the pilot. What shocked me the most was that we were wheels up way before him and we turned right to avoid the turbulence and head back to XLL (1N9 at the time) and we still felt the effects.Chad