Aces High Bulletin Board

General Forums => Aircraft and Vehicles => Topic started by: AceHavok on November 22, 2011, 05:26:59 PM

Title: P-39D Cannon Question
Post by: AceHavok on November 22, 2011, 05:26:59 PM
Well, I've been flying the P-39D a decent amount lately. I really love this plane, starting to get pretty good in it too. :)
My question is what Cannon do you all take when flying the P-39D?

Thanks,
Warthog
Title: Re: P-39D Cannon Question
Post by: TwinBoom on November 22, 2011, 05:34:26 PM
I use 20mm "lighter"
Title: Re: P-39D Cannon Question
Post by: Tank-Ace on November 22, 2011, 07:16:02 PM
Whenever I took the P-39D out for a spin (not often outside of the DA) I always took the 20mm. If you want the 37mm..... well thats what the Q model is for  :noid.
Title: Re: P-39D Cannon Question
Post by: cactuskooler on November 22, 2011, 07:18:13 PM
Well the 37mm is more of a rough and slow whump-whump-whump feel, while the 20 is more of a rapid staccato babababababababa feel.  I know many men prefer the 37.  I'm a 20mm man myself.
Title: Re: P-39D Cannon Question
Post by: Ack-Ack on November 22, 2011, 07:39:14 PM
In real life the 20mm option was preferred by lot of Airacobra pilots, not because it was lighter than the 37mm Oldsmobile cannon but rather because it was far more reliable and wasn't prone to jamming after a couple of shots like the Oldsmobile cannon was.

ack-ack
Title: Re: P-39D Cannon Question
Post by: Guppy35 on November 22, 2011, 07:57:38 PM
Well the 37mm is more of a rough and slow whump-whump-whump feel, while the 20 is more of a rapid staccato babababababababa feel.  I know many men prefer the 37.  I'm a 20mm man myself.

LOL you owe me for a new monitor :)
Title: Re: P-39D Cannon Question
Post by: Krusty on November 22, 2011, 08:36:15 PM
The 20mm Hispano is good for easy shots, but you use more rounds per kill.

The 37mm is far far more potent for getting 6+ kills per sortie. Plus if you switch back and forth you lose your "37mm lead" computing ability. YOu have to keep using it or you have to relearn it all. So I always take 37mm.
Title: Re: P-39D Cannon Question
Post by: Oldman731 on November 22, 2011, 09:45:54 PM
The 20mm Hispano is good for easy shots, but you use more rounds per kill.

The 37mm is far far more potent for getting 6+ kills per sortie. Plus if you switch back and forth you lose your "37mm lead" computing ability. YOu have to keep using it or you have to relearn it all. So I always take 37mm.


Hey, look at me!  I agree with Krusty!

The P-39 was designed around the 37mm in a manner similar to the A10 concept.  Maybe it flys a little better with the 20mm, maybe it's a little easier to get hits with the 20mm, but you fly the 39 for the 37mm, same way as you fly the Yak 9T and the 109K for their tater-tossers.

- oldman (well...of course that's my opinion only...and Krusty's, too..)
Title: Re: P-39D Cannon Question
Post by: Tank-Ace on November 22, 2011, 10:49:51 PM
Actually, the main reason people fly the 109K is for the preformance. Its outstanding in acceleration, climb, and speed. Only 1 aircraft beats its climb rate (and only by 100ft/min if that), and only a handfull can beat its acceleration.

Since a 30mm is available on the 109G14, which has poorer preformance (although better manuverability), thats the only reason you would fly a K model, not because you need your tater fix.
Title: Re: P-39D Cannon Question
Post by: Soulyss on November 22, 2011, 11:19:17 PM
Well the 37mm is more of a rough and slow whump-whump-whump feel, while the 20 is more of a rapid staccato babababababababa feel.  I know many men prefer the 37.  I'm a 20mm man myself.


 :rofl
Title: Re: P-39D Cannon Question
Post by: AceHavok on November 22, 2011, 11:28:05 PM
Personally, I think the P-39D is a diamond in the rough. Most people don't like it due to it's lack of speed/climb. I'm starting to like the 37mm cannon a bit more than the 20mm, Mainly because if you see that you get a hit in the middle of any fighter. You know that fight is over. Thanks for the replies all. :)

Warthog
Title: Re: P-39D Cannon Question
Post by: BaDkaRmA158Th on November 22, 2011, 11:36:26 PM
The 20mm Hispano is good for easy shots, but you use more rounds per kill.

The 37mm is far far more potent for getting 6+ kills per sortie. Plus if you switch back and forth you lose your "37mm lead" computing ability. YOu have to keep using it or you have to relearn it all. So I always take 37mm.


That's right.



If we had the p-39D-2 i wouldn't ride in the Q ever again.

175 more hp for nothing..shoooot. :P
Title: Re: P-39D Cannon Question
Post by: Volron on November 23, 2011, 12:17:57 AM
I havn't flown the P-39 in a while, but when I did fly her now and again, I would almost always take the 37mm.  While in real life it was prone to jamming, we never have to worry about that here.  I personally, didn't like how she handled with the 20mm.  She didn't seem..."right", for lack of a better term.  But more than likely, it's because I use the 37mm so much the, few times I do fly her.
Title: Re: P-39D Cannon Question
Post by: perdue3 on November 23, 2011, 12:31:46 AM
20
Title: Re: P-39D Cannon Question
Post by: M0nkey_Man on November 23, 2011, 02:29:02 AM
killed a 262 with a P-39D that had the 37

(http://i751.photobucket.com/albums/xx154/mohaam0nkey/didyouneedthat.jpg?t=1303025285)
Title: Re: P-39D Cannon Question
Post by: Volron on November 23, 2011, 02:46:03 AM
killed a 262 with a P-39D that had the 37

(http://i751.photobucket.com/albums/xx154/mohaam0nkey/didyouneedthat.jpg?t=1303025285)

That HAD to of given you a couple of perks. :lol
Title: Re: P-39D Cannon Question
Post by: M0nkey_Man on November 23, 2011, 10:27:18 AM
That HAD to of given you a couple of perks. :lol
ya, and a ton of laughs because him and a pony were trying to vulch me as I was bombing tanks :lol
Title: Re: P-39D Cannon Question
Post by: BaDkaRmA158Th on November 23, 2011, 05:36:28 PM
It should also be noted the 20mm version is more unstable due to less weight in the nose,good if your planing on fighting in in vertical "much like the 38's less .50 call option" I don't remember the math exactly.
Title: Re: P-39D Cannon Question
Post by: Krusty on November 24, 2011, 03:02:50 PM
With the super docile handling HTC gave the P-39 I don't see it as a problem. In fact I've mixed it up with that 20mm a numbe of times and never had any balance issues. Historically, maybe... Here? Nah. Go based off the firepower, rather than any perceived performance gain. If you want performance fly the Q and leave the gondolas off.
Title: Re: P-39D Cannon Question
Post by: Tank-Ace on November 24, 2011, 05:01:20 PM
My view on the matter is that the only reason you should fly the D model is the 20mm or its higher ENY value. The Q model offers the 37mm and significantly improved preformance.
Title: Re: P-39D Cannon Question
Post by: Butcher on November 24, 2011, 06:57:00 PM
I did a Snapshot vs A6m2s and barely got 4 kills with the 37mm before I was out of ammo, the 20mm option I landed 9.

Frankly unless you are 400 behind and they are leveled out, you won't get a kill, snapshots are almost impossible due to slow rate of fire.
However in a nice turn fight and you can close to 200 or less - its a single shot to kill.

Honestly I don't fly the 37mm option and probably wouldn't, even the 39Q I won't fly, if anything the P39D with 20mm option just for the kicks of flying it.

Title: Re: P-39D Cannon Question
Post by: bozon on November 25, 2011, 02:01:13 AM
Frankly unless you are 400 behind and they are leveled out, you won't get a kill, snapshots are almost impossible due to slow rate of fire.
The slow rate of fire is a plus - in all taters type cannons. If you miss the first potato, the second one is not likely to hit either, especially if it comes very quickly after the 1st. These canons are fired in "single" mode - I actually hate it when I release more than 1 round because it is a waste of precious ammo. The slower the rate of fire, the easier it is to release 1 shot at a time.

Some people are very good shooters with the big guns. Others, like myself, treat them as sticky bombs - you get so close that you dont shoot the taters, you attach them to the other plane. Collisions are common.
Title: Re: P-39D Cannon Question
Post by: Tank-Ace on November 25, 2011, 02:41:18 AM
The higher ROF of the Mk 108 is an advantage over other tater guns because it gives you a better chance with deflection shooting. Being able to make deflection shots means you'll kill your opponent quicker. Killing your opponent quicker means you'll live longer. And living longer means you get more kills. I probably wouldn't want to fly anything with a 30mm if it had a slow rate of fire.


And if you close to D200 before firing, then you're doing it wrong bozon. Kills out to D600 are possible if you really get familiar with the balistics, and even D800 with luck.