Blackout when reaching 480 kias

Hello guys,

I'm more of a (virtual) huey pilot, but I wanted to try out a jet. So I got the F-5E. I love it, but I stumbled upon a bug (or a mistake I made? dunno) which makes the Tiger unflyable for me.

As soon as I hit about 480 knots, my cockpit view turns black. I can switch to the external view and see that the jet is shaking. The plane doesnt react to anything i do with the joystick, the rudder or the throttle. There's one thing I can do: if I trim the plane upwards to lift the nose, the Tiger loses speed. If my airspeed is below 480 kias, everything's back to normal.

Does anyone know what I'm doing wrong? As I said, I'm more the helo type, but I can fly the F-15 and the A-10 from FC3 without that happening.

Best regards from Germany!

Phil

What exactly are you doing when you black out? Flying straight and level? Pulling up? Nosing down? Banking left or right?

What branch of DCS?

It's fine under 1.5.

don't have any problems in 2.1 and 1.5

as already asked, what's your attitude and Gs and Altitude?

Do you have the pitch and yaw dampers connected? The two switches in the left panel, just behind the radar control panel

Thanks for the responses. I fly level, just accelerating.

I'm running DCS 1.5 and the problem appears in different altitudes. Also in the training missions. I dont know about those dampers, I'll check that one out.

Thanks for the responses. I fly level, just accelerating.

I'm running DCS 1.5 and the problem appears in different altitudes. Also in the training missions. I dont know about those dampers, I'll check that one out.

Do you have oxygen on?

Could it be the flaps? Right now I would point you to Chuck's F-5E guide, but since they have been taken down, well, this is the best I can do:

https://forums.eagle.ru/showpost.php?p=3145000&postcount=251

Ive been flying the F-5 quite a bit lately, in both 1.56, 2.05 and 2.1, and never encountered this. And Ive been going a lot faster than 480.

Yesterday, after all your hints and questions, I took a ride in the Tiger once again. Seems I misread sth - I fly a lot faster when this happens, turns out its not 480 kias, but more than 600.

So this might be the reason - flying too low and too fast?

This happened to me twice in the same Normandy mission. I was out of afterburner about 4,000 ft the first time. Didn't think I was going that fast, maybe 400 KCAS. The same happened again at about 6,000 ft., again not "that" fast. Internal view, blacked out, external view the wings shaking to beat the band. Of course the plane wouldn't respond to control or throttle inputs. Lucky it remained level until I could regain internal cockpit. Also on final approach with the boards out , gear down, and auto flaps the plane didn't want to slow down as it normally did on about a 2-3 degree glideslope. I will investigate further not time I fly it. BTW. dampers on!

When it's shaking, what does the F2 view say the G's are ? (maybe look at 1/4 speed so you can see if there are transients)

I will try and see if I can duplicate it.

However I do remember resetting the "g" meter after this happened. It had gone from at least +2 to -2. More information: Normandy database mission set at March at 1800 hours. The aircraft was clean (no external weapons or fuel tank). All settings were at maximum.

Just re-flew the mission and had it happen again. I'm attaching two screens. While in F2 it looked like the "g" meter was going from -1 to

+3 . Also when I got back control I was at 450 kts and 9500 ft altitude.

I was blacked out at 493 knots, 6500 ft.

https://www.4shared.com/s/f2AjG35Euei

https://www.4shared.com/s/fkFEJ5U_Kei

I flew it again today with tip missiles, 4Xrocket pods and a centerline tank and did not get the blackout. I flew in the 450-500 Knots range at about 4000-8000 feet. It may only be a problem in clean configuration????

I hope this helps.