SAAB JAS 39E/F Gripen - General discussion

yeah i just tend to turn it off quickly once i notice that, flare and turn it back on once the missile passes


Those two images are of parked ones though, when they are parked the hydraulic oil loses pressure and the elevons fall down.

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I wrote a report 2 years ago and it wasn’t even read.

Then you can send a private message to one of the Technical Moderators and ask about it. You can find all the teams and the areas they handle listed here: (Who is who and Reporting Procedure). If you don’t get an answer within a few days you can add more moderators from the list to the original message instead of sending a new message (that way you preserve the date of the message and it doesn’t look like a new request), adding one of the moderators to the message every 2-3 days or so until you get an answer.

Please do not to add the seniors until you have tried all other regular moderators, the Seniors likely won’t answer unless they are added and pinged by the regular moderators but if you’ve added all the regular moderators with no answer then you can add the seniors.

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You have some strange knowledge about how hydraulics work.

That’s during construction and/or maintenance, i don’t think the same functionality can be said to exist on half built ones compared to completed in-service planes.

Here is a video with a couple of road landings with the C version, i timestamped it to a clip from behind the plane at 1:10.

The pressure in the hydraulic system can drop only due to faults in the system.
Otherwise, the system is always closed, and the fluid, whether oil or something else, can’t escape.

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The video shows the moment of contact, but there is no continuation with braking.

https://www.youtube.com/shorts/TF1VHEHqlz0

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That’s not correct from what i’ve been able to find.
image

( https://aviation.stackexchange.com/questions/98484/why-do-some-aircrafts-flight-control-surfaces-not-droop-when-hydraulic-power-is )

There is for enough time to see the elevon start to flair upwards.

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image

There are several types of hydraulics systems and valves. Some stay in the same state when powered off, others don’t.

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In any case, separate movement of the outer and inner ailerons is not implemented.
The same goes for the slats.
This is why takeoff and landing occur at a greater distance than they should.

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Even with the front fender control button enabled in the game, they reach their maximum position, but the transition occurs at a speed of about 150 km/h.
Screenshot from the game

Photo of the plane
image
image

Screenshot from the game
image

There are also many questions about the upward deflection angle of the ailerons even with the maneuver button on.

I agree with this.

Also, i just found a video that show the Gripen taxying and parking and you can see the elevons drooping when the engine is turned off.
Timestamped to 2:57 , the engine is turned off and the elevons droop at 3:27

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Even so, at 5:53 you can see that the inner ailerons are down, while the outer ones are raised.

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