VSN New F-104 Mod

[PeeJott17]

On 6/28/2025 at 12:34 AM, AndyJWest said:

I've been trying out the C model. Looks are excellent, but I'm a little unsure about the flight modelling. I can understand it being sensitive in pitch, but it seems to actually be divergent in roll: trimmed hands off, it will fairly rapidly roll off to one side or another, to an extent that I'd have thought unacceptable in a real aircraft. Is stability augmentation working? Turning roll augmentation off via the switch seems to make no difference.

Yes, it does roll slightly to the down-wing-side.

I think(and it is not 100% clear from the manual, at least to me) that the stability-augmentation just countered stronger rolling and dampened it. I don't know whether it could completely counter rolling or just set it to a linear slight rolling.

As far as I know, the 104 did not go straight through turns if you took your hands of the stick, but I'll look into it

On 6/28/2025 at 5:58 AM, zsoltfireman said:

It would be nice to have a G/S model package that can be used without FC in the same way as the C package

Yep, sure thing. But G and S will stay FC-3 dependent...of course, you never know, but it is more looking like "will not happen" than "may-be"...

 

[stockfisch]

I am puzzled. In the video ‚F-104C mod - first flight‘ of cesarferrolho it seems to be a F-104G model with the long rudder and without probe. The cockpit is clickable. Is it some kind of a ‚franken plane‘? Would love to combine the exterior model of the F-104G with the F-104C standalone clickable cockpit features. Is it possible?

Thanks for your answers. Good to know that it is possible to use G-type skins to get the F-104G exterior look for the C-Model.

[AndyJWest]

2 hours ago, PeeJott17 said:

Yes, it does roll slightly to the down-wing-side.

I think(and it is not 100% clear from the manual, at least to me) that the stability-augmentation just countered stronger rolling and dampened it. I don't know whether it could completely counter rolling or just set it to a linear slight rolling.

As far as I know, the 104 did not go straight through turns if you took your hands of the stick, but I'll look into it

Yep, sure thing. But G and S will stay FC-3 dependent...of course, you never know, but it is more looking like "will not happen" than "may-be"...

 

There are flight manuals for various versions of the F-104 about, and some of them include a section on 'Flight Characteristics'. I've not found one for the C version with this, but the basic aerodynamics won't have changed. The section goes into a fair bit of detail regarding why, despite the 10° anhedral (on what is almost an unswept wing), due to the T-tail acting as a fence on the rudder/fin, inducing greater roll in a slip, "the aircraft possesses a normal positive dihedral effect". This to me would suggest that the aircraft should be at least a little more stable in  roll.

The same section also has data on the stability augmenters, showing their damping effect diagrammatically. I seem to remember one of the manuals stating that the roll augmenter should be turned off in some circumstances (above a certain speed, with missiles/tanks on the tip stations, I think), but I can't seem to find it. This would imply that even without the roll augmenter, it should still be stable in roll.

[PeeJott17]

3 hours ago, AndyJWest said:

There are flight manuals for various versions of the F-104 about, and some of them include a section on 'Flight Characteristics'. I've not found one for the C version with this, but the basic aerodynamics won't have changed. The section goes into a fair bit of detail regarding why, despite the 10° anhedral (on what is almost an unswept wing), due to the T-tail acting as a fence on the rudder/fin, inducing greater roll in a slip, "the aircraft possesses a normal positive dihedral effect". This to me would suggest that the aircraft should be at least a little more stable in  roll.

The same section also has data on the stability augmenters, showing their damping effect diagrammatically. I seem to remember one of the manuals stating that the roll augmenter should be turned off in some circumstances (above a certain speed, with missiles/tanks on the tip stations, I think), but I can't seem to find it. This would imply that even without the roll augmenter, it should still be stable in roll.

I will take a look at it and hope to find an answer to it for the next Version;-)

[firefox121]

Hello, this is a grat mod, indeed I noticed that has no ffb effects,  is ther any chance to add ffb effects to this great mod? without using external software, I own an old sidewinder ffb 2