Aces High Bulletin Board

General Forums => Aces High General Discussion => Topic started by: Citabria on July 25, 2003, 11:26:46 AM

Title: gun synchronization when trigger pulled
Post by: Citabria on July 25, 2003, 11:26:46 AM
HT can you change the gun synchronization code to fire all guns instantaneously when trigger pulled then have the guns fal out of synch after the first shots are fired?

would help with the hurri2d wich im trying to fly and failing miserably
Title: gun synchronization when trigger pulled
Post by: JB73 on July 25, 2003, 11:43:05 AM
what about syncing them with the prop so if you turn down RPM's the rate if fire goes down, RPM's up rate goes up?

(i was told it was like that... but i have no actual knowledge)
Title: gun synchronization when trigger pulled
Post by: Zanth on July 25, 2003, 12:10:45 PM
Congrats on trying out the Hurricane D - all I have managed in it this go round is 9 kills and 9 deaths.  

I am curious to know did the actual plane fire the weapons sequentially or all at once?  Whichever it is ought to be the way I think.
Title: gun synchronization when trigger pulled
Post by: flakbait on July 25, 2003, 12:12:07 PM
Rate of fire isn't tied to engine speed or prop rotation, it's a mechanical limit within the gun. All the interuption gear does is stop the gun from firing when a prop blade is in the way. A prop at low speed is in the way of the barrel for a longer span of time, but each blade is also out of the way for a longer span of time. So you don't get a reduction in the firing rate. What does happen is there will be larger gaps where the gun isn't firing. Of course, we're still talking hundredths of a second, which amounts to a difference of maybe five rounds at the most.


The main reason the Hurri2D wobbles around so much is that the guns aren't synched at all to the trigger. One fires, then the other fires, though in a very tiny time span. Cita is right, both should fire simultaniously when the trigger is pulled and rarely if ever become unsynched. As it stands now they don't fire at 40RPM all the time: if they did, we wouldn't see the epileptic siezures it goes through now.




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Title: gun synchronization when trigger pulled
Post by: Karnak on July 25, 2003, 01:25:03 PM
Quote
Originally posted by Zanth
I am curious to know did the actual plane fire the weapons sequentially or all at once?  Whichever it is ought to be the way I think.


According to Anthony Williams (who posted this in a thread about the Hurri IId's sequential fire in the Aircraft forum) the Hurri IId's guns fired simultaneously.  The kick would push the nose down markedly so they tactic was to fire one shot, aim again, fire and pull off for another pass.

The horrible yaw effect we have in AH is not correct.
Title: gun synchronization when trigger pulled
Post by: Kweassa on July 25, 2003, 05:21:07 PM
Incidentally, what are the effects of pulling the trigger?

 I seem to recall hearing that the center-line mounted weapons(nose/cowling) would tend to push the nose pitch down. What would happen with wing armed planes?

 Would the two agendas in armament have markedly different results?

 ..
Title: gun synchronization when trigger pulled
Post by: icemaw on July 25, 2003, 06:01:50 PM
Oh sure like we need fester flying around in a hurri with 40mm that can be aimed. Might as well fly around on AUTO PILOT straight and level get it over quick!
Title: gun synchronization when trigger pulled
Post by: Ack-Ack on July 25, 2003, 06:34:25 PM
HiTech addressed a similiar question that I had about the machine guns on the P-38L.  You'll have to scroll down 3/4 down the thread to read his responce.  I'm guessing the same problem of having all four guns fire at once in the P-38 in AH is the same for the Hurricane.


thread (http://www.hitechcreations.com/forums/showthread.php?s=&threadid=90588)



Ack-Ack
Title: gun synchronization when trigger pulled
Post by: Karnak on July 25, 2003, 07:03:09 PM
Ack-Ack,

You realize there is a vast difference between what happens to the P-38 and the Hurri IId, right?

The P-38 suffers little or no (probably no) degradation in firepower.  The Hurri IId is useless and the guns cannot even be use how they were historically.
Title: gun synchronization when trigger pulled
Post by: Ack-Ack on July 25, 2003, 07:21:28 PM
Quote
Originally posted by Karnak
Ack-Ack,

You realize there is a vast difference between what happens to the P-38 and the Hurri IId, right?

The P-38 suffers little or no (probably no) degradation in firepower.  The Hurri IId is useless and the guns cannot even be use how they were historically.





This is HiTechs reasons why the guns don't fire at the same time for the P-38.  It's possible this is the same reason why they don't fire all at once for the Hurricane either.  I'm in no way comparing how the guns fire on the P-38 with the Hurricane nor saying they both have the same problem.  Just saying that HiTech's responce to my question could also be the reason why the Hurricane fires as it does.

Quote

In the real 38 the first bullets out of the gun on a triger pull would not be at exatly the same time , they might be fired closer to the same time then in AH, but there after they would all be out of sync. To simulate this we would have to put in random firerates vs fixed fire rates for all guns.



Ack-Ack
Title: gun synchronization when trigger pulled
Post by: Karnak on July 25, 2003, 07:47:45 PM
Yes, I saw his reason when it he posted it.  It is entirely valid for the P-38, but not at all for the Hurricane.

In the Hurricane the pilot never fired a burst.  He pressed and released the trigger for the guns sending two 40mm shells towards his target, one from each gun.  The guns fired at the same moment.

In the case of the P-38 it doesn't matter because there is no difference between pulse firing and stream firing when you get right down to it.  Not with guns that have a 700rpm rate of fire.

In the case of the Hurri it has drastic effects because of the yaw.  Furthermore guns that have a 40rmp rate of fire are not going to get unsynched nearly as rapidly, and holding to the one round per trigger press they'll never get unsynched.
Title: gun synchronization when trigger pulled
Post by: Ack-Ack on July 26, 2003, 01:25:42 AM
Get the comparisons between the P-38 and the Hurricane out of your head and you may see what I'm talking about.  I'm saying that maybe the same reasons why HT adjusted the way the machines guns fire on the P-38 is the same reasons why he's done it for the Hurricane and the other planes in here.  If you notice most of the planes don't fire their guns simultaneously in AH.


Ack-Ack
Title: gun synchronization when trigger pulled
Post by: Karnak on July 26, 2003, 01:52:48 AM
Yes, I know.  They fire sequentially.

I don't think there was any particular reason that HTC did it that way.  His response is specificly about telling you that it wouldn't affect the P-38 if the guns fired simultaneosly.

The problem lies with aircraft like the Hurri IId and, if we get it, the Ju87G.  For those aircraft it needs to be done differently.

As there is no ryme or reason to the current settings (all HiTech was saying was that it didn't matter how it was modeled) it needs to be changed, at least for the big gun aircraft.
Title: gun synchronization when trigger pulled
Post by: Ack-Ack on July 26, 2003, 03:15:03 AM
If you had read what HiTech had said, he said to make the guns fire simultaneously, they'd have to put in random fire rates vs. fix fire rates for all guns to simulate simultaneous fire.

Maybe like the P-38, this is the reason why we don't have guns that fire simultaneously in AH.


ack-ack