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View Full Version : Petition to unsynch the Tempest guns!



DmdSeeker
02-10-2006, 02:17 AM
Somebody had to do it.......

DmdSeeker
02-10-2006, 02:17 AM
Somebody had to do it.......

Feathered_IV
02-10-2006, 02:22 AM
http://forums.ubi.com/images/smilies/1241.gif

xTHRUDx
02-10-2006, 02:24 AM
actualy, i bet there are many guns types that need to be unsynced, i'm in favor of it

nakamura_kenji
02-10-2006, 02:33 AM
japanese plane also especial type-99-I/II imposible synch were never able be use fire throw prop like army ho-5 20mm

SeaFireLIV
02-10-2006, 02:36 AM
Well that didn`t take long...

DmdSeeker
02-10-2006, 03:54 AM
http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif

Kocur_
02-10-2006, 04:20 AM
Well, actually - why not? And there should not be much recoil from those Hispanos, not in Tempest, nor in Spitfire (at least with C wings). I just learnt recently, that they made backward movement during recoil by about an inch, which powered Chatelleraux belt feed mechanism - obviously recoil force transmitted into airframe was greately reduced!

Japanese Navy 20mms were all API blowback operated, so their recoil was low by nature - no reason not to desynch those too.

And MG151/20 was recoil operated plus had similarly to Hispano had flexible mounting permitting backward movement between shots - so recoil wasnt and shouldnt be any problem. The only 'but' is that Fw-190 outer cannons and MC205 ones might have been fired simoultaneusy as being electrically fired.

Another issue is mixing beltings of particular guns. I happened yesterday to follow a Do-335 in Tempest firing very short bursts. At least twice I hit him, but all four hits were AP projectiles http://forums.ubi.com/groupee_common/emoticons/icon_biggrin.gif.
Fw-190 could use that too - currently its target is hit either with salvo of four API/HE (little effect) or salvo of four Minengeschoss...

nakamura_kenji
02-10-2006, 04:26 AM
ho-5 20mm were super browning machine gun exception of nose mount guns fit with interrupter gear stop prop strike they should be desync also same reason browning 12.7mm were (wear manufacture difference ect)

japanese army(need check navy) 7.7/12.7mm were browning design but they still sync also >_<

jds1978
02-10-2006, 06:39 AM
its about time you fellas jumped on the desynch bandwagon http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

now go fly some USAAC planes and see what the big deal is

p1ngu666
02-10-2006, 07:02 AM
its what i asked for ages ago http://forums.ubi.com/images/smilies/16x16_smiley-wink.gif
nearly all guns should be unsynced..

190s should have slightly less ROF on the inner cannons, cos they go thru the prop...

SeaFireLIV
02-10-2006, 07:06 AM
Placebo.

WOLFMondo
02-10-2006, 07:09 AM
Ask for the un sync IF you can prove that Tempest flew with there Hispanos firing out of sync. I've never read anything to say they did or didn't.

Kocur_
02-10-2006, 07:29 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by p1ngu666:
its what i asked for ages ago http://forums.ubi.com/images/smilies/16x16_smiley-wink.gif
nearly all guns should be unsynced..

190s should have slightly less ROF on the inner cannons, cos they go thru the prop... </div></BLOCKQUOTE>

Generally speaking loss of ROF due to synchronisation in case of mechanical interruptor was about 20-25%. MG151/20 with its electrical ignition governed by electrical interruptor loss was up to 10%.

Kocur_
02-10-2006, 08:00 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by WOLFMondo:
Ask for the un sync IF you can prove that Tempest flew with there Hispanos firing out of sync. I've never read anything to say they did or didn't. </div></BLOCKQUOTE>

Since there was no device which would synch those wing mounted guns, they did IRL and should work exactly as .50 now in 4.03 - all guns ' ROF varies a bit.

DmdSeeker
02-10-2006, 12:24 PM
Were they electricaly fired? I seem to remember reading some German cannons were fired electicaly; and if so it seems logical the firing would be some kind of pulsed signal (a coil or similar?) which would naturally give synchronised firing

I thing some kind of chip programmed to send firing impulses timed to produce an optimum spread is a bit too much to ask for 1940's valves http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif

OldMan____
02-10-2006, 12:31 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by p1ngu666:
its what i asked for ages ago http://forums.ubi.com/images/smilies/16x16_smiley-wink.gif
nearly all guns should be unsynced..

190s should have slightly less ROF on the inner cannons, cos they go thru the prop... </div></BLOCKQUOTE>

&lt; 5% is worth the effort and time?

Kocur_
02-10-2006, 12:55 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by DmdSeeker:
Were they electricaly fired? I seem to remember reading some German cannons were fired electicaly; and if so it seems logical the firing would be some kind of pulsed signal (a coil or similar?) which would naturally give synchronised firing

I thing some kind of chip programmed to send firing impulses timed to produce an optimum spread is a bit too much to ask for 1940's valves http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif </div></BLOCKQUOTE>

No, no! Again: there were no devices to synchronise guns WITH EACHOTHER!! There was only synchronisation with prop, i.e. firing was interrupted just before-during-and just after prop blade passed before guns muzzle. Guns were operated from cocpit in various methods, usually by electric system: pilot pushed button, circuit was closed and selenoids attached to guns would 'pull the trigger', i.e. operate usual mechanical firing mechanism. In case of prop synchronisation, there was devisece called interruptor, which was breaking circuit for moments when prop blade was passing before muzzle.
Now in case of MG131 and MG151/20, it was done in more precise way, i.e. without normal gun's firing mechanism. Instead of percussion primers, electric ones were used. So interrupted didnt control firing via gun's mechanical firing device, but did it directly, braking circuit, which ignited primers.