Author Topic: Realism-Gameplay gunnery balance  (Read 1975 times)

Offline hitech

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Realism-Gameplay gunnery balance
« Reply #60 on: January 20, 2003, 09:21:31 AM »
Widewing Density and Wind are both modled.


HiTech

Offline Kweassa

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« Reply #61 on: January 20, 2003, 10:10:40 AM »
HT.. how can we confirm that?

 If we set the wind speed very high, and make it blow from the east, will the bullets land to the left to the center of the bull's eye, brought up by '.target' command??

 Wait.. maybe I can just try it myself :D

Offline mrsid2

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« Reply #62 on: January 20, 2003, 10:25:31 AM »
Hmm looks like both offline play and film viewer are porked in 1.11

Offline Widewing

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« Reply #63 on: January 20, 2003, 11:24:42 AM »
Quote
Originally posted by hitech
Widewing Density and Wind are both modled.


HiTech


Then I stand corrected. ;)

Can I assume that you have Standard Day, sea level ballistic coefficients for each type of round?

Also, has anyone ever seen any of the dispersion cone studies for hand aimed .50 cal. BMGs, done by the Army early in 1942? I recall that the dispersion cone was measured at 22 feet at 500 yards. This was caused by recoil of the weapon. I saw one of these studies several years ago, but cannot remember specifically where.

My regards,

Widewing
My regards,

Widewing

YGBSM. Retired Member of Aces High Trainer Corps, Past President of the DFC, retired from flying as Tredlite.

Offline Toad

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« Reply #64 on: January 20, 2003, 12:04:43 PM »
And the wingspan of most fighters is in the 30-40' range isn't it?
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Offline Widewing

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« Reply #65 on: January 20, 2003, 01:14:42 PM »
Quote
Originally posted by Toad
And the wingspan of most fighters is in the 30-40' range isn't it?


Okay, let's assume that we have a 44 diameter dispersion cone at 1,000 yards. Let's drop a fighter with a 30 ft. wingspan into that circle (something along the size of the Bf 109).

What is the total frontal area of the 109, 40 square feet (probably much less than that)?

So, we have a total dispersion area of 1,521 sq/ft, into which we place an aircraft of 40 square feet frontal area.

Now if the gunner (let's say it's the pintle gun on an M3) has absolutely perfect aim, and correctly accounts for ballistic drop and windage, he can expect to see an average of 2.6% of his bullets hit the 109. Should he fire 200 rounds (a 15-20 second burst, mind you), that adds up to 5 rounds scoring on the fighter. Moreover, those hits will be completely random.

Let's look at a more realistic amount of rounds fired, based upon 750 rnds/min. The gunner fires for 2 seconds, that's 25 rounds. Multiply that by 2.6% and you can expect an average of 0.65 hits!! Rounded up, that means one (1) bullet strikes the 109!

Yet, in the game, wings get shot off as often as not. Now, how is that possible?

See why this is frustrating?

My regards,

Widewing
My regards,

Widewing

YGBSM. Retired Member of Aces High Trainer Corps, Past President of the DFC, retired from flying as Tredlite.

Offline Toad

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« Reply #66 on: January 20, 2003, 01:36:53 PM »
And if one catches an aircraft in planform? Like when he's pulling into the vertical? And if the shooter has 8 .50's on a Jug banging away instead of pintle gun?

I'm not totally dismissing your argument at all. You make some good points. It's just that there's too many claims of "impossible" getting tossed around here since day one of beta.

My position is that the range of probably all the airborne guns here is undermodeled. You never get pinged past ~1.2 and the tracers in fact just disappear.

I'm not saying you should get lots of hits at long range. But given the amount of rounds fired here, you'd think now and then there'd be 2.0 pings.. not real damage, just pings.

That and cumulative damage. Some guy gets a kill with a short burst at 1.0 and yells "impossible", when it may well be that the target had been hosed several times at close range in a furball and was rtb to get a new plane due to damage.

Now, to the point. Yeah, I think the GV anti-air capability is umm....  umm... extremely good. One might say waaaaaaaaaaaay to good. For lots of reasons. Main one being it'd take one crazy mother to stand up exposed and man his .30 as a Typh rolled in on him with 20mm's blazing. Gunner kills? Do they even happen?

However, I view it as just another gameplay concession for the GV crowd. Again, it's not like HT doesn't know how good the pintle guns are. So, that must be how he wants it.

Me? You could take all GV's out of the game and I'd view it as an improvement. but that's just me. If folks want to GV, good on 'em. I just stay away from 'em unless I'm packing suitable ord for them. If you don't have rocks and/or 1k's the deck is totally stacked in their favor.

My .02.
If ye love wealth better than liberty, the tranquility of servitude than the animated contest of freedom, go from us in peace. We ask not your counsels or arms. Crouch down and lick the hands which feed you. May your chains sit lightly upon you, and may posterity forget that you were our countrymen!

Offline hitech

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« Reply #67 on: January 20, 2003, 02:10:25 PM »
Widewing, depends on how you are caculating a coef, lots of different ways to get the same results.  You can assume a standard atmosphere for bullet caclations. And drag will change as you change altitude.

Wind will not come out the same as on the ground because you are moving right along with the wind, and so is the target. Therefore from your perspective in a fighter there isn't any wind.

But now shoot from the side guns of a b17, and you can see the wind effects.

As for dispersion, bring up the target and see what the dispersion is for any gun.


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Offline GRUNHERZ

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« Reply #68 on: January 20, 2003, 02:13:12 PM »
hitech how do you turn off the .targetxxx graphic after you are done playing with it?

Offline hitech

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« Reply #69 on: January 20, 2003, 02:15:14 PM »
.target 0

Offline GRUNHERZ

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« Reply #70 on: January 20, 2003, 02:16:22 PM »
thanks

Offline Wotan

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« Reply #71 on: January 20, 2003, 04:02:30 PM »
whats the scale of the target rings?

Offline hitech

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« Reply #72 on: January 20, 2003, 04:16:47 PM »
10 Ft Radius.

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Offline WhiteHawk

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« Reply #73 on: January 20, 2003, 05:17:52 PM »
I think the gunery is here is escellent for a game.  Imaigne if
you play for 2 years and get only 7 kills in AH?  in real life
you would be an ace.  Tghing is, if you make a mistake, you
are at a greater risk of dying.  It was a fool indeed, in WW2,
who thought, 'jeez, dispersal coefficient gravitated by the
prostdigitation of the gravity reversal means I can set up
on this b17s tail, cuz he can only hit me with .069 bullets per
second.'  The plane that sets up on the tail of a b17 genearlly
dies in AH and generally was shot down in WW2.
  The fact that the tactics required here to kill buffs while
minimizing the risk to the fighter, are quite similar, if not
precisely the tactics described by buff killers in WW2.
  That would tell me that the modleing is at least scaled
to realism while allowing for exciting gameply.
  Anybody remember AW's gunnery.  now there was some barnyard physics for ya.

Offline Widewing

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« Reply #74 on: January 21, 2003, 12:47:38 PM »
Quote
Originally posted by WhiteHawk
I think the gunery is here is escellent for a game.  Imaigne if
you play for 2 years and get only 7 kills in AH?  in real life
you would be an ace.  Tghing is, if you make a mistake, you
are at a greater risk of dying.  It was a fool indeed, in WW2,
who thought, 'jeez, dispersal coefficient gravitated by the
prostdigitation of the gravity reversal means I can set up
on this b17s tail, cuz he can only hit me with .069 bullets per
second.'  The plane that sets up on the tail of a b17 genearlly
dies in AH and generally was shot down in WW2.
  The fact that the tactics required here to kill buffs while
minimizing the risk to the fighter, are quite similar, if not
precisely the tactics described by buff killers in WW2.
  That would tell me that the modleing is at least scaled
to realism while allowing for exciting gameply.
  Anybody remember AW's gunnery.  now there was some barnyard physics for ya.


I took the time yesterday to sit down with Mr. James Miller, who flew 57 combat missions with the 398th Bomb Group in B-17s during 1944. Jim was a waist and later, tail gunner. After his tour was complete, he returned to the States where he was assigned as a gunnery instructor. Few people alive today know the Browning .50 caliber machine gun and its use, function and accuracy better than Jim.

After the war, Jim earned a degree in mechanical engineering and started his own company, which today is the leading high tech division of the CIRCOR International conglomerate. Jim retired as company President in 2001 at the age of 80. Currently, he is building a small single-engine amphibian in his barn, he also owns and flies a Cessna 172. He is a long-time member of the Experimental Aircraft Owners Association. Last summer Jim and his wife (a highly respected attorney) spent two months hiking the mountains of Nepal, living on the local economy. To state that Jim is a remarkable man is a gross understatement.

We discussed issues, such as bullet dispersion, sights and sight accuracy. In his opinion, any gunner obtaining hits on a fighter at ranges of 1,000 yards or greater could attribute it to “dumb luck.” He stated that, “the tail gunner had a good chance to damage a German fighter once the range dropped below 5 or 6 hundred yards, assuming that the German is closing from behind.” However, he also stated that, “very few fighters attacked level from behind. Usually, they would dive in, roll over and go down through the box.”

So, being shot down by a single burst at 1,400 yards is improbable?

“Closer to impossible.”

What do you think of my simple analysis of shot dispersion?

“Dispersion varied from gun to gun and from mount to mount. In some cases it was much better than you show, and in other cases much worse. Many factors affected accuracy. What was a nice tight gun mount on the ground, might loosen up exposed to the –30 (degrees) temperature soaking. Gunner accuracy also declined as the temperature went down due to mechanical and physical difficulties associated with flying at high altitude in an unpressurized and unheated bomber.”

What about hit probability?

“I suspect that your numbers are close to reality, based upon my experience.”

What about the gun sights used .50 caliber MG? How accurate were the sights?

“You know that we had this big ring, and it was never accurately aligned to the gun’s bore.”

Meaning?

“Meaning that you used it only for reference, you shot based upon what you determined was the proper lead.”

What about wind?

“You’re an experienced sailor (sailboats), so you understand the difference between apparent wind and true wind, right?”

Right.

“Does the game’s programmer understand what apparent wind is?”

Good question, I don’t know for sure, but I would assume that he does. But, wind doesn’t exist in the game except at specific altitudes.

“Why is that?”

I can’t say.

I asked Jim if he was ever awarded any kills, he said that, “ I put in two or three claims of fighters damaged, I never claimed any shot down.”

Why?

“I was certain that I didn’t do enough damage to claim any shot down. But, some guys put in claims for everything they fired their guns at.”

Were these confirmed?

“Usually, yes.”

Why?

“Morale.”

Morale?

“You have to remember that your chances of finishing a tour weren’t terribly good. Everything possible to keep morale high was done or tried. Awarding kills was an easy way to keep morale up. Although I believe that most of the boys knew it was a sham. Don’t misunderstand me, a lot of Germans were shot down by gunners, but only a fraction of those for which victories were credited.”

Maybe we could discuss your experiences in greater depth some time?

“Sure, give me a call at home, if I’m not around leave your number with Rey.”


My regards,

Widewing
« Last Edit: January 21, 2003, 12:49:40 PM by Widewing »
My regards,

Widewing

YGBSM. Retired Member of Aces High Trainer Corps, Past President of the DFC, retired from flying as Tredlite.