Does the MiG-19P have fly-by-wire?

[IcedVenom]

I remember seeing in documentaries that the MiG-19P was the first fighter to have an early version of fly by wire developed which simulated force feedback as the new electronic system was unpopular with MiG-19 pilots. Is this simulated in DCS by any chance? I have always wanted to know.

[TLTeo]

Absolutely not. What the Mig-19 has (and other aircraft, like the Viggen and Mig-21) is a pitch gearing system which essentially attempts to give the pilot a somewhat consistent amount of g per stick distance travelled, regardless of airspeed. This is NOT a FBW system, because the stick is still directly linked to the flight surfaces. In a FBW system, instead, the inputs from the stick, to a computer (either analogue, like in early F16 blocks, or digital, like in the FBW jets we have in DCS), which figures out how to move any of the control surfaces to accomplish what it thinks the pilot is inputting.

 

Hope that makes sense.

[Fri13]

On 4/17/2021 at 3:38 PM, TLTeo said:

Absolutely not. What the Mig-19 has (and other aircraft, like the Viggen and Mig-21) is a pitch gearing system which essentially attempts to give the pilot a somewhat consistent amount of g per stick distance travelled, regardless of airspeed. This is NOT a FBW system, because the stick is still directly linked to the flight surfaces. In a FBW system, instead, the inputs from the stick, to a computer (either analogue, like in early F16 blocks, or digital, like in the FBW jets we have in DCS), which figures out how to move any of the control surfaces to accomplish what it thinks the pilot is inputting.

 

Hope that makes sense.

 

That is then same as with F-15C that doesn't have a FBW either, but "G for stick amount of movement".

[TLTeo]

23 minutes ago, Fri13 said:

 

That is then same as with F-15C that doesn't have a FBW either, but "G for stick amount of movement".

Eh yes but no. Yes because indeed the F-15C and E indeed do not have a true FBW system, no because they have additional flight control stability stuff in there that the Farmer does not. I also don't know whether the pitch gearing systems in the Farmer and Fishbed do the "G for stick amount of movement" exactly, if that makes sense.

Edited June 23, 2021 by TLTeo

[rossmum]

They adjust the lever arm between the stick and the actual booster system IIRC. And yes, the F-15 is much more complicated - same as the F-5, there is a cross-linkage between the roll and yaw channels so that the aircraft will mostly (but not completely) take care of balancing turns for you and you have the stability augmentation modes. Not so in the 19 or DCS 21. Not sure if the actual 21bis has any stab augs or not, I've heard it brought up but it's outside my wheelhouse.

[TLTeo]

2 hours ago, rossmum said:

Not sure if the actual 21bis has any stab augs or not, I've heard it brought up but it's outside my wheelhouse.

I thought that's what the dampen mode of the autopilot (which is missing in the -19) acts as?

[rossmum]

Kind of. It acts as an attitude hold, and disconnects when sufficient stick force is applied. The stick has a series of microswitches around its base (between the grip and the extension) which AFAIK act as a pressure disconnect to allow manoeuvres without the AP trying to override input - the POH also states that it should make no difference to manoeuvres other than an increase in necessary stick force to execute them, presumably due to the need to trip the switches first. It's not really an SAS so much as just a way of being able to fly more hands-off than we usually can in DCS.

 

Ingame it... does something? I don't know for sure how it functions, other than it makes the aircraft prone to overshooting desired bank angles (especially with high roll rates) and makes takeoffs and landings feel a bit sketchy. I think you have to hit a separate bind to get it to go into ATTH and I don't even know if that works, I've never used it.

[Fri13]

On 6/23/2021 at 5:09 PM, TLTeo said:

Eh yes but no. Yes because indeed the F-15C and E indeed do not have a true FBW system, no because they have additional flight control stability stuff in there that the Farmer does not. I also don't know whether the pitch gearing systems in the Farmer and Fishbed do the "G for stick amount of movement" exactly, if that makes sense.

 

[TLTeo]

7 minutes ago, Fri13 said:

 

I was referring to this post

 

 

[Nahen]

When I read such posts, I am 100% sure that people who ask about the Fly-by Wire (FBW) system have no idea what they are asking. Maybe instead of asking stupid questions, it would be better to read a little about this system, what it is, why it was created - I assure you that no more questions about whether the MiG-19/21/29, F-15C, etc. have this system ... Tragedy, intelligence of mankind is collapsing overnight ...

[Cab]

On 6/28/2021 at 10:15 AM, Nahen said:

When I read such posts, I am 100% sure that people who ask about the Fly-by Wire (FBW) system have no idea what they are asking. Maybe instead of asking stupid questions, it would be better to read a little about this system, what it is, why it was created - I assure you that no more questions about whether the MiG-19/21/29, F-15C, etc. have this system ... Tragedy, intelligence of mankind is collapsing overnight ...

Wow. Bad night?

[Nahen]

On 7/21/2022 at 1:30 PM, Cab said:

Wow. Bad night?

Such a long night, lasted over a year, but I can see that you are already up;) Good morning;)

[Cab]

1 hour ago, Nahen said:

Such a long night, lasted over a year, but I can see that you are already up;) Good morning;)

[Baltic Dude]

On 6/28/2021 at 7:15 AM, Nahen said:

When I read such posts, I am 100% sure that people who ask about the Fly-by Wire (FBW) system have no idea what they are asking. Maybe instead of asking stupid questions, it would be better to read a little about this system, what it is, why it was created - I assure you that no more questions about whether the MiG-19/21/29, F-15C, etc. have this system ... Tragedy, intelligence of mankind is collapsing overnight ...

Why so mean? He wasn't completely wrong.