Razbam a-7e fde

hschuit said:
+1 ... Who in the world came up with the idea to pin medals on their pants, simply brilliant :applause:
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Oh those whacky North Korean dudes. What guys.

I always loved their absolutely HUGE hats. Looks like they are wearing salad bowls on their heads. :untroubled:
 
Anyone else having the jet tip over after catching the wire on a carrier or is it just my lack of pilot skills? These adjusted tailhook settings improved things for me:

[Tailhook]
tailhook_length=5.0 ;4.4
tailhook_position= -50, 0, 1.75 ;-15.56,0.0,-2.611
cable_force_adjust=1.0
 
hschuit said:
Anyone else having the jet tip over after catching the wire on a carrier or is it just my lack of pilot skills? These adjusted tailhook settings improved things for me:

[Tailhook]
tailhook_length=5.0 ;4.4
tailhook_position= -50, 0, 1.75 ;-15.56,0.0,-2.611
cable_force_adjust=1.0
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Henk, you're really looking to start filling up the right pant-leg, aren't you? :biggrin-new:

Yes, I get some tipover on most landings. Rich Roscoe (RIP) was really good at pinpointing this (I think he'd attach a temporary .fx to the attachment point) and often they virtual hook point was way off where the modeled hook point was. That said, though, sometimes you have to "cheat" and move the virtual hook for precisely the reason you're pointing out, given the limitations of how forces translate in the sim.

So if this helps tidy up the landings, I'm all for it. Will try tonight, with your other settings, which I haven't tried yet (sick in bed last night) - am very eager to give these all a whirl.

cheers,

dl
 
Give the man another medal!

Thanks Henk - both the vibe fix and the tailhook fix cleaned up what I think are among the last of the little niggles in this plane. I'll port the hook fix over the pack 2 (A/B) model for sure!

Your work is much appreciated.

Regards,

dl
 
Attached the pack 1 (A-7D/E/H) FDE update which includes all mods which were mentioned in this thread + more, thanks for all the feedback! With the kind help from a fellow member, I am working on the pack 2 A-7A/B FDE now.
 

Attachments

  • SLUFF_FDE_v2.zip
    9.5 KB · Views: 17
hschuit said:
Attached the pack 1 (A-7D/E/H) FDE update which includes all mods which were mentioned in this thread + more, thanks for all the feedback! With the kind help from a fellow member, I am working on the pack 2 A-7A/B FDE now.
Click to expand...

Installed it, and thank you.

Is there anything that can be done to reduce the pitch trim sensitivity ? It seems that for any given throttle setting, load configuration and speed, it is impossible to trim the aircraft out for level flight. The slightest touch on the trim control, either nose up or nose down, will have you climbing rapidly or diving, and while the changes in air speed alter the rate of ascent and descent accordingly, it never settles down into level flight. The Razbam Intruder and Prowler are exactly the same, maybe even more so. It's been said here that the real A-7 was sensitive to control inputs ( and the Intruder ? and the Prowler too ?? ) but I don't accept it was sensitive to such a degree that the autopilot is the only way of maintaining level flight - and that's what I'm finding.
 
Paul K said:
Installed it, and thank you.

Is there anything that can be done to reduce the pitch trim sensitivity ? It seems that for any given throttle setting, load configuration and speed, it is impossible to trim the aircraft out for level flight. The slightest touch on the trim control, either nose up or nose down, will have you climbing rapidly or diving, and while the changes in air speed alter the rate of ascent and descent accordingly, it never settles down into level flight. The Razbam Intruder and Prowler are exactly the same, maybe even more so. It's been said here that the real A-7 was sensitive to control inputs ( and the Intruder ? and the Prowler too ?? ) but I don't accept it was sensitive to such a degree that the autopilot is the only way of maintaining level flight - and that's what I'm finding.
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I do not know how to tweak this without introducing other issues...
 
hschuit said:
Attached the pack 1 (A-7D/E/H) FDE update which includes all mods which were mentioned in this thread + more, thanks for all the feedback! With the kind help from a fellow member, I am working on the pack 2 A-7A/B FDE now.
Click to expand...

After 2 1/2 years I'm finally enjoying the A-7 pack 1 a whole lot more because of your mods. Looking forward to your pack 2 mods.
Thank you Henk ! :encouragement:
 
Thanks Henk for the updated FDE v2 ! :very_drunk:

Like others, it was time to dust off the A-7.

I would like to add the following, if you think the roll rate is to sluggish change the following parameter:

[flight_tuning]
aileron_effectiveness = 2.0 ( or if it's to fast....you can change to 1.9 etc. 1.0 is the original )


Cheers,
Hank
 
hae5904 said:
Thanks Henk for the updated FDE v2 ! :very_drunk:

Like others, it was time to dust off the A-7.

I would like to add the following, if you think the roll rate is to sluggish change the following parameter:

[flight_tuning]
aileron_effectiveness = 2.0 ( or if it's to fast....you can change to 1.9 etc. 1.0 is the original )


Cheers,
Hank
Click to expand...


If you do this, then also increase the rudder effectiveness. I upped it to 1.5.
 
hschuit said:
Attached the pack 1 (A-7D/E/H) FDE update which includes all mods which were mentioned in this thread + more, thanks for all the feedback! With the kind help from a fellow member, I am working on the pack 2 A-7A/B FDE now.
Click to expand...

Thank you for the FDE update, like it much more than the inital one. There is one issue left which is the turbine outlet temperature. Is it just the one value
in the airfile (EGT)? Have adjusted this one and temp is more close to the red line at full thrust, however changes in temperature are too rapidly. Any idea?
best regards, thomas
 
narah said:
Thank you for the FDE update, like it much more than the inital one. There is one issue left which is the turbine outlet temperature. Is it just the one value
in the airfile (EGT)? Have adjusted this one and temp is more close to the red line at full thrust, however changes in temperature are too rapidly. Any idea?
best regards, thomas
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I only adjusted the AIR file EGT scalar (rec 540) from 1.00 -> 0.94 to make it slightly less sensitive for overtemp engine stall.
I did not touch the EGT rate of change ( = 2.0 ), maybe you can try to lower this value ?
 
Navy Chief said:
Is there possibly a suggestion to lessen the problem with overly sensitive pitch response? NC
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Paul K / NC, attached a revised FDE with simplified pitch-trim dynamics; can you try it and let me know what you think about it ?
 

Attachments

  • SLUFF_FDE_v3.zip
    9.2 KB · Views: 14
Thanks for taking a look a the EGT, I can't see RW SLUF drivers having to hawk the gauge anytime one goes to full mil power. I am glad it was included in the model, much like the other details, but it's a pain to come off target waiting for a master warning.
 
hschuit said:
Paul K / NC, attached a revised FDE with simplified pitch-trim dynamics; can you try it and let me know what you think about it ?
Click to expand...

Thanks for this. What exactly did you change in the aircraft.cfg? Mine is customized for my set up and dont want to just overwrite my cfg. prefer to cut and paste your amendment.

Eric
 
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