±Recent Visitors

Recent Visitors to Com-Central!

±User Info-big


Welcome Anonymous

Nickname
Password

Membership:
Latest: cgsimpson
New Today: 0
New Yesterday: 0
Overall: 6645

People Online:
Members: 0
Visitors: 814
Total: 814
Who Is Where:
 Visitors:
01: Community Forums
02: Community Forums
03: Community Forums
04: Community Forums
05: Photo Gallery
06: Community Forums
07: Community Forums
08: Community Forums
09: Downloads
10: Home
11: Community Forums
12: Community Forums
13: Community Forums
14: Photo Gallery
15: Community Forums
16: Community Forums
17: Community Forums
18: Photo Gallery
19: Home
20: Community Forums
21: Home
22: Community Forums
23: Community Forums
24: Community Forums
25: Community Forums
26: Community Forums
27: Community Forums
28: Home
29: Community Forums
30: Your Account
31: Community Forums
32: Community Forums
33: Community Forums
34: Community Forums
35: Community Forums
36: Community Forums
37: Photo Gallery
38: Community Forums
39: Community Forums
40: Home
41: Photo Gallery
42: CPGlang
43: Community Forums
44: Community Forums
45: Community Forums
46: Home
47: Community Forums
48: Community Forums
49: Home
50: Photo Gallery
51: Community Forums
52: Photo Gallery
53: Community Forums
54: Member Screenshots
55: Community Forums
56: Home
57: Community Forums
58: Photo Gallery
59: Community Forums
60: Community Forums
61: Photo Gallery
62: Community Forums
63: Community Forums
64: CPGlang
65: Community Forums
66: Community Forums
67: News
68: Community Forums
69: News Archive
70: Community Forums
71: Community Forums
72: Community Forums
73: Community Forums
74: Community Forums
75: Statistics
76: Downloads
77: Community Forums
78: Community Forums
79: Community Forums
80: Community Forums
81: Community Forums
82: Community Forums
83: Community Forums
84: Community Forums
85: Home
86: Photo Gallery
87: Photo Gallery
88: Home
89: Community Forums
90: News Archive
91: Community Forums
92: Your Account
93: Community Forums
94: Community Forums
95: Home
96: Downloads
97: Community Forums
98: Community Forums
99: Community Forums
100: Community Forums
101: Statistics
102: Downloads
103: Home
104: Home
105: Community Forums
106: Community Forums
107: Community Forums
108: Photo Gallery
109: Home
110: Photo Gallery
111: Member Screenshots
112: Your Account
113: Photo Gallery
114: Community Forums
115: Member Screenshots
116: Community Forums
117: Community Forums
118: Home
119: Community Forums
120: Community Forums
121: Community Forums
122: Photo Gallery
123: Community Forums
124: Community Forums
125: Community Forums
126: Community Forums
127: Community Forums
128: Downloads
129: Photo Gallery
130: Member Screenshots
131: Community Forums
132: Photo Gallery
133: Community Forums
134: Community Forums
135: Photo Gallery
136: Community Forums
137: Community Forums
138: Photo Gallery
139: Community Forums
140: Community Forums
141: Community Forums
142: Member Screenshots
143: Home
144: Home
145: Community Forums
146: Community Forums
147: Home
148: Community Forums
149: Community Forums
150: Community Forums
151: Home
152: Home
153: Community Forums
154: Community Forums
155: Community Forums
156: Member Screenshots
157: Home
158: Community Forums
159: Community Forums
160: News
161: Community Forums
162: Community Forums
163: Community Forums
164: Community Forums
165: Home
166: Member Screenshots
167: Downloads
168: Community Forums
169: Community Forums
170: Your Account
171: Community Forums
172: Community Forums
173: Community Forums
174: Home
175: Photo Gallery
176: Community Forums
177: Community Forums
178: Community Forums
179: Community Forums
180: Community Forums
181: Community Forums
182: Community Forums
183: Home
184: Home
185: Community Forums
186: Community Forums
187: Community Forums
188: Community Forums
189: Community Forums
190: Photo Gallery
191: CPGlang
192: Home
193: Your Account
194: Home
195: Community Forums
196: Community Forums
197: Community Forums
198: Community Forums
199: Community Forums
200: Community Forums
201: Community Forums
202: Community Forums
203: Community Forums
204: Community Forums
205: Community Forums
206: Home
207: Community Forums
208: Community Forums
209: Community Forums
210: CPGlang
211: Your Account
212: Community Forums
213: Community Forums
214: Community Forums
215: Member Screenshots
216: Community Forums
217: Community Forums
218: Community Forums
219: Home
220: Community Forums
221: Your Account
222: Photo Gallery
223: Photo Gallery
224: Downloads
225: Community Forums
226: Home
227: Community Forums
228: Downloads
229: Photo Gallery
230: Home
231: Community Forums
232: Home
233: Community Forums
234: Community Forums
235: Downloads
236: Downloads
237: Community Forums
238: Photo Gallery
239: Home
240: Community Forums
241: Photo Gallery
242: Photo Gallery
243: Community Forums
244: Community Forums
245: Community Forums
246: Community Forums
247: Community Forums
248: Your Account
249: Community Forums
250: Downloads
251: Home
252: Community Forums
253: Community Forums
254: Downloads
255: Community Forums
256: Community Forums
257: Photo Gallery
258: Downloads
259: CPGlang
260: Community Forums
261: Community Forums
262: Community Forums
263: Community Forums
264: Community Forums
265: Downloads
266: Community Forums
267: Community Forums
268: Community Forums
269: Member Screenshots
270: Community Forums
271: Your Account
272: Community Forums
273: Photo Gallery
274: Downloads
275: Photo Gallery
276: Home
277: Community Forums
278: Photo Gallery
279: Community Forums
280: Photo Gallery
281: Community Forums
282: Community Forums
283: Community Forums
284: Community Forums
285: Community Forums
286: Your Account
287: Community Forums
288: Home
289: Community Forums
290: Community Forums
291: News
292: Community Forums
293: Photo Gallery
294: Community Forums
295: Community Forums
296: Community Forums
297: Photo Gallery
298: Community Forums
299: Community Forums
300: Community Forums
301: Community Forums
302: Community Forums
303: Community Forums
304: Community Forums
305: Community Forums
306: Community Forums
307: Community Forums
308: Downloads
309: Member Screenshots
310: Home
311: Community Forums
312: Community Forums
313: Community Forums
314: Community Forums
315: Home
316: Community Forums
317: Photo Gallery
318: Community Forums
319: Member Screenshots
320: Community Forums
321: Community Forums
322: Community Forums
323: Community Forums
324: Community Forums
325: Community Forums
326: Community Forums
327: Community Forums
328: Community Forums
329: Community Forums
330: News Archive
331: Community Forums
332: Community Forums
333: Community Forums
334: Community Forums
335: Photo Gallery
336: Community Forums
337: Home
338: Community Forums
339: Community Forums
340: Community Forums
341: Home
342: Community Forums
343: Community Forums
344: Photo Gallery
345: Community Forums
346: Community Forums
347: Community Forums
348: Community Forums
349: Photo Gallery
350: Community Forums
351: Downloads
352: Community Forums
353: Photo Gallery
354: Community Forums
355: Member Screenshots
356: CPGlang
357: Community Forums
358: Home
359: Community Forums
360: Photo Gallery
361: Home
362: Photo Gallery
363: Photo Gallery
364: Home
365: Downloads
366: Downloads
367: Community Forums
368: Photo Gallery
369: Community Forums
370: CPGlang
371: Community Forums
372: Community Forums
373: Community Forums
374: Community Forums
375: Community Forums
376: Photo Gallery
377: Community Forums
378: Community Forums
379: Photo Gallery
380: Statistics
381: Community Forums
382: Photo Gallery
383: Community Forums
384: Community Forums
385: Community Forums
386: Downloads
387: Community Forums
388: Community Forums
389: Home
390: Community Forums
391: Community Forums
392: Community Forums
393: Community Forums
394: Community Forums
395: Community Forums
396: Community Forums
397: Community Forums
398: Community Forums
399: Community Forums
400: Community Forums
401: Community Forums
402: Community Forums
403: Community Forums
404: Community Forums
405: Community Forums
406: Community Forums
407: Community Forums
408: Community Forums
409: Community Forums
410: Photo Gallery
411: Photo Gallery
412: Community Forums
413: Community Forums
414: Community Forums
415: Community Forums
416: Community Forums
417: Photo Gallery
418: Community Forums
419: Community Forums
420: Home
421: Community Forums
422: Community Forums
423: Community Forums
424: Community Forums
425: Photo Gallery
426: Community Forums
427: Community Forums
428: Community Forums
429: Community Forums
430: Community Forums
431: Photo Gallery
432: Community Forums
433: Community Forums
434: Home
435: Community Forums
436: Community Forums
437: Community Forums
438: Community Forums
439: Photo Gallery
440: Community Forums
441: Home
442: Community Forums
443: Community Forums
444: Photo Gallery
445: Community Forums
446: Community Forums
447: Community Forums
448: Home
449: CPGlang
450: Community Forums
451: Downloads
452: Photo Gallery
453: Community Forums
454: Community Forums
455: Community Forums
456: Downloads
457: Photo Gallery
458: Home
459: Community Forums
460: Community Forums
461: Community Forums
462: Photo Gallery
463: Community Forums
464: Home
465: Downloads
466: Community Forums
467: Community Forums
468: Downloads
469: Member Screenshots
470: Community Forums
471: Photo Gallery
472: Community Forums
473: Home
474: Photo Gallery
475: Community Forums
476: Community Forums
477: Home
478: Community Forums
479: Community Forums
480: Community Forums
481: Home
482: Community Forums
483: Photo Gallery
484: Photo Gallery
485: Community Forums
486: Community Forums
487: Community Forums
488: Community Forums
489: Community Forums
490: Downloads
491: Community Forums
492: Community Forums
493: Community Forums
494: Community Forums
495: Community Forums
496: Home
497: Home
498: Community Forums
499: Your Account
500: Community Forums
501: Member Screenshots
502: Community Forums
503: Community Forums
504: Photo Gallery
505: Community Forums
506: Photo Gallery
507: Photo Gallery
508: Community Forums
509: Community Forums
510: Community Forums
511: Community Forums
512: Community Forums
513: Community Forums
514: Community Forums
515: Community Forums
516: Photo Gallery
517: Home
518: Community Forums
519: Community Forums
520: Community Forums
521: Community Forums
522: Photo Gallery
523: Community Forums
524: Community Forums
525: Community Forums
526: Community Forums
527: Community Forums
528: Home
529: Community Forums
530: Community Forums
531: Community Forums
532: Community Forums
533: Photo Gallery
534: Community Forums
535: Community Forums
536: Community Forums
537: Photo Gallery
538: Community Forums
539: Community Forums
540: Photo Gallery
541: Community Forums
542: Home
543: Community Forums
544: Community Forums
545: Photo Gallery
546: Downloads
547: Community Forums
548: Community Forums
549: Photo Gallery
550: Community Forums
551: Home
552: Community Forums
553: Community Forums
554: Home
555: Photo Gallery
556: Community Forums
557: Community Forums
558: Community Forums
559: Photo Gallery
560: Photo Gallery
561: Photo Gallery
562: Community Forums
563: Community Forums
564: Community Forums
565: Community Forums
566: Community Forums
567: Community Forums
568: Community Forums
569: Community Forums
570: Photo Gallery
571: Home
572: Community Forums
573: Community Forums
574: Community Forums
575: Community Forums
576: Community Forums
577: Downloads
578: Community Forums
579: Statistics
580: Home
581: Community Forums
582: Community Forums
583: Community Forums
584: Community Forums
585: Community Forums
586: Community Forums
587: Photo Gallery
588: Community Forums
589: Downloads
590: Community Forums
591: Community Forums
592: Photo Gallery
593: Downloads
594: Community Forums
595: Downloads
596: Community Forums
597: Community Forums
598: Community Forums
599: CPGlang
600: Community Forums
601: Community Forums
602: Community Forums
603: Community Forums
604: Community Forums
605: CPGlang
606: Community Forums
607: Member Screenshots
608: Community Forums
609: Community Forums
610: Community Forums
611: Community Forums
612: Community Forums
613: Your Account
614: Home
615: Community Forums
616: Community Forums
617: Member Screenshots
618: Home
619: Downloads
620: Home
621: Community Forums
622: Community Forums
623: CPGlang
624: Community Forums
625: Community Forums
626: Community Forums
627: Home
628: Community Forums
629: Community Forums
630: Community Forums
631: Community Forums
632: Community Forums
633: Community Forums
634: Community Forums
635: Community Forums
636: Community Forums
637: Community Forums
638: Photo Gallery
639: Community Forums
640: Community Forums
641: Community Forums
642: Community Forums
643: Home
644: Photo Gallery
645: Photo Gallery
646: Community Forums
647: Community Forums
648: Home
649: Home
650: Photo Gallery
651: Community Forums
652: Photo Gallery
653: Community Forums
654: Home
655: Community Forums
656: Community Forums
657: Community Forums
658: Community Forums
659: Community Forums
660: Community Forums
661: Community Forums
662: Photo Gallery
663: Community Forums
664: Photo Gallery
665: Community Forums
666: Community Forums
667: Community Forums
668: Community Forums
669: Community Forums
670: Community Forums
671: Community Forums
672: Community Forums
673: Community Forums
674: Community Forums
675: Community Forums
676: Community Forums
677: Community Forums
678: Community Forums
679: Community Forums
680: Community Forums
681: Community Forums
682: Community Forums
683: Community Forums
684: Community Forums
685: Community Forums
686: Community Forums
687: Community Forums
688: Community Forums
689: CPGlang
690: Community Forums
691: Community Forums
692: Community Forums
693: Community Forums
694: Community Forums
695: Downloads
696: Community Forums
697: Community Forums
698: Photo Gallery
699: Photo Gallery
700: Photo Gallery
701: Photo Gallery
702: News
703: Community Forums
704: Community Forums
705: Community Forums
706: Community Forums
707: Community Forums
708: Community Forums
709: Community Forums
710: Photo Gallery
711: Community Forums
712: Community Forums
713: Member Screenshots
714: Community Forums
715: Community Forums
716: Photo Gallery
717: Home
718: Community Forums
719: Community Forums
720: Community Forums
721: Home
722: Community Forums
723: Home
724: CPGlang
725: Downloads
726: Home
727: Home
728: Photo Gallery
729: Community Forums
730: Community Forums
731: Photo Gallery
732: Community Forums
733: Community Forums
734: Home
735: Community Forums
736: Community Forums
737: Community Forums
738: Community Forums
739: Home
740: Photo Gallery
741: Home
742: Community Forums
743: Photo Gallery
744: Community Forums
745: Community Forums
746: Community Forums
747: Community Forums
748: Photo Gallery
749: Community Forums
750: Community Forums
751: Photo Gallery
752: Community Forums
753: Community Forums
754: Home
755: Community Forums
756: Community Forums
757: Community Forums
758: Community Forums
759: Photo Gallery
760: Home
761: Community Forums
762: Community Forums
763: Community Forums
764: Community Forums
765: Community Forums
766: Community Forums
767: Community Forums
768: Community Forums
769: Photo Gallery
770: News Archive
771: Photo Gallery
772: Community Forums
773: Community Forums
774: Community Forums
775: Community Forums
776: Photo Gallery
777: Community Forums
778: Home
779: Community Forums
780: Photo Gallery
781: Downloads
782: Community Forums
783: Community Forums
784: Community Forums
785: Community Forums
786: Community Forums
787: Member Screenshots
788: Community Forums
789: Home
790: Community Forums
791: Community Forums
792: Community Forums
793: Community Forums
794: Community Forums
795: Community Forums
796: Photo Gallery
797: Photo Gallery
798: Photo Gallery
799: Community Forums
800: Home
801: Community Forums
802: Community Forums
803: Community Forums
804: Community Forums
805: Community Forums
806: Photo Gallery
807: Community Forums
808: Photo Gallery
809: Photo Gallery
810: Photo Gallery
811: Community Forums
812: Community Forums
813: Community Forums
814: Community Forums

Staff Online:

No staff members are online!
fume extractors-- questions?
The AFV ASSOCIATION was formed in 1964 to support the thoughts and research of all those interested in Armored Fighting Vehicles and related topics, such as AFV drawings. The emphasis has always been on sharing information and communicating with other members of similar interests; e.g. German armor, Japanese AFVs, or whatever.
Go to page 1, 2  Next
Post new topic    Reply to topic    Printer Friendly Page     Forum Index ›  AFV News Discussion Board

View previous topic :: View next topic  
Author Message
SHAWN
Power User

Offline Offline
Joined: Jan 31, 2006
Posts: 484

PostPosted: Mon Mar 20, 2006 2:48 am
Post subject: fume extractors-- questions?

i was just looking over some reading material and ran across some items on the fume extractor, etc. and it then seemed "modern" to me. almost taken for granted in large calibre evolution...

i have never really thought of it before and havent read much in particular to it, but it must have been even more "atmospheric" in many of the larger calibred tanks/SPs of WW2 (especially the russians, few of the germans) considering they had no fume extractors.
as if the creature comforts in the soviet vehicles werent exquisite already.
i can only think this must have been a big problem. glad i wasnt in the vehicle.
can anyone relate?
shawn
Back to top
View user's profile Photo Gallery
Dontos
Power User

Offline Offline
Joined: Jan 24, 2006
Posts: 3436
Location: Vine Grove, KY
PostPosted: Mon Mar 20, 2006 2:59 am
Post subject: Re: fume extractors-- questions?

'Bore evacuators' are more nice but not designed as a purely 'creature comfort' with the crew inmind.

I used to love 'smoking' the fumes that filled the turret, when firing with hatches closed. (one of many little quirks, that I have been known for in the past...)

With the NBC system and overpressurization, there is really little fumes in the Abrams turret anymore.

Cracking hatches helps, but the turret fan or blower was designed to circulate or recirculate 'stale' air.

_________________
"Gonna hold my breath until Armor returns home..."
Back to top
View user's profile Send e-mail Visit poster's website AIM Address Yahoo Messenger Photo Gallery
SHAWN
Power User

Offline Offline
Joined: Jan 31, 2006
Posts: 484

PostPosted: Mon Mar 20, 2006 3:05 am
Post subject: Re: fume extractors-- questions?

hey dontos,

you seem to have many a "quirk" dont you...

you know, this new site seems pretty cool for AFVnews, i think i am liking it alot more than the older site, and i really enjoyed that site.
shawn
Back to top
View user's profile Photo Gallery
SHAWN
Power User

Offline Offline
Joined: Jan 31, 2006
Posts: 484

PostPosted: Mon Mar 20, 2006 3:16 am
Post subject: Re: fume extractors-- questions?

okay, i am going to play really dumb on this on dontos, what else was the fume extractor designed for, as far as gun operation, etc.?
Back to top
View user's profile Photo Gallery
Dontos
Power User

Offline Offline
Joined: Jan 24, 2006
Posts: 3436
Location: Vine Grove, KY
PostPosted: Mon Mar 20, 2006 3:16 am
Post subject: Re: fume extractors-- questions?

HA...you gotta 'catch up'. Many cool little things here. Cool


_________________
"Gonna hold my breath until Armor returns home..."
Back to top
View user's profile Send e-mail Visit poster's website AIM Address Yahoo Messenger Photo Gallery
Joe_D
Power User

Offline Offline
Joined: Jan 29, 2006
Posts: 2066
Location: Razorback Country
PostPosted: Mon Mar 20, 2006 3:46 am
Post subject: Re: fume extractors-- questions?

Shawn,
Don't let Donto's cavalier attitude fool you, them fumes can get pretty bad when the evacuator doesn't work. Until the M1A1 came out that's all you had along with the turret blower. The blower would suck air in to the turret and force the fumes out, a lot of laymen think the opposite. With combustable casings the bore evacuator prevents flareback (IAW the "Book"). It's also all you have unless the NBC overpressure system is on, the blower was replaced by it. Any unburnt residue left in the chamber will flare up as soon as the gun goes back into battery opening the breech and ejecting the cartridge base giving it oxygen. The bore evacuator lowers the atmospheric pressure in the gun behind it. When the breech opens the higher pressure in the turret rushes in and expells the fumes and potential flare towards the end of the gun tube.
With all that, aquestion for Dontos. Riddle me this, was it authorized on the M1A1/A2 to fire main gun with the engine off ???? War time doesn't count.

Joe D

PS: WELCOME BACK Ole Top, I missed you too.
Back to top
View user's profile Photo Gallery
Dontos
Power User

Offline Offline
Joined: Jan 24, 2006
Posts: 3436
Location: Vine Grove, KY
PostPosted: Mon Mar 20, 2006 11:31 am
Post subject: Re: fume extractors-- questions?

- Joe_D
Shawn,
With all that, aquestion for Dontos. Riddle me this, was it authorized on the M1A1/A2 to fire main gun with the engine off ???? War time doesn't count.
Joe D


NOPE!! ...do I have to explain?

_________________
"Gonna hold my breath until Armor returns home..."
Back to top
View user's profile Send e-mail Visit poster's website AIM Address Yahoo Messenger Photo Gallery
Roy_A_Lingle
Power User

Offline Offline
Joined: Jan 24, 2006
Posts: 1997
Location: El Paso & Ft Bliss, Texas
PostPosted: Mon Mar 20, 2006 11:51 am
Post subject: Re: fume extractors-- questions?

- Dontos
- Joe_D
Shawn,
With all that, aquestion for Dontos. Riddle me this, was it authorized on the M1A1/A2 to fire main gun with the engine off ???? War time doesn't count.
Joe D


NOPE!! ...do I have to explain?


For all us NON-M-1 tankers (the M1 was after my time), YES, YES, YES, YES you must explain!

If I could fire my M-139 20mm autocannon on a Lingle in full auto or single shot without any power, why cann't a M-1 do it?
Sgt, Scouts Out! Smile

_________________
"You can never have too much reconnaissance."
General G.S. Patton Jr.
Back to top
View user's profile Send e-mail
Dontos
Power User

Offline Offline
Joined: Jan 24, 2006
Posts: 3436
Location: Vine Grove, KY
PostPosted: Mon Mar 20, 2006 12:40 pm
Post subject: Re: fume extractors-- questions?

- Roy_A_Lingle
- Dontos
- Joe_D
Shawn,
With all that, aquestion for Dontos. Riddle me this, was it authorized on the M1A1/A2 to fire main gun with the engine off ???? War time doesn't count.
Joe D


NOPE!! ...do I have to explain?


For all us NON-M-1 tankers (the M1 was after my time), YES, YES, YES, YES you must explain!

If I could fire my M-139 20mm autocannon on a Lingle in full auto or single shot without any power, why cann't a M-1 do it?
Sgt, Scouts Out! Smile


The NBC system which is required to overpressurize the tank, works off of the running engine.

There are a couple of other reasons I can think about but nothing 'official' that I can remember.

I had an 'old' IPM1 in Germany that would 'fire' the driver halon bottle if you ran the heater with the engine off. That was my first 'taste' of halon, during an 'alert'. We were in a tactical shutdown at the "LDA", awaiting upload. Laying on the front slope, talking to the driver,.....PSSSSSSS RIGHT IN THE FACE!!!. Shocked (MMMM, MMMM Good!!) I was spitting Halon for a couple of days. Mr. Green

Joe, remember the early days of the 120? Unloading a HEAT round? HAHAHA... handing the loader thesash brush and a dust pan...

(to the loader)
JUST SCOOP IT UP Shocked AND PUT IT BACK IN THE BREECH, THEN SHOVE THE AFT CAP BACK ON!!!! Shocked

"Tower, this is _____, request permission to fire chambered round...Could you pop a target?"

Bring back any memories?

_________________
"Gonna hold my breath until Armor returns home..."
Back to top
View user's profile Send e-mail Visit poster's website AIM Address Yahoo Messenger Photo Gallery
Dontos
Power User

Offline Offline
Joined: Jan 24, 2006
Posts: 3436
Location: Vine Grove, KY
PostPosted: Mon Mar 20, 2006 12:46 pm
Post subject: Re: fume extractors-- questions?

QUESTION TO JOE:

Ever use the sledge hammer on the 120 Bore evacuator? ( Mr. Green )

ANSWER: ??? Shocked

(Me?....once! )

_________________
"Gonna hold my breath until Armor returns home..."
Back to top
View user's profile Send e-mail Visit poster's website AIM Address Yahoo Messenger Photo Gallery
Joe_D
Power User

Offline Offline
Joined: Jan 29, 2006
Posts: 2066
Location: Razorback Country
PostPosted: Mon Mar 20, 2006 1:19 pm
Post subject: Re: fume extractors-- questions?

Yeah,
Better hope you didn't have some hot aft caps on the floor when it did. High adventure then.
Never seen any official written rule about main gun fire requiring the engine on. The round about answer was the Tank was safety deadlined for main gun fire if the NBC main system was down. Never stopped me but I did use that deadline to get all my systems repaired in a timely manner.
Never had a problem getting a 120 evacuator off. Had a few 105's needing the old 10lb solution. They were on M60A1's on their last legs of life. Could always tell who had a sticky one because the back was bashed in. Howz cum yoos got to bash yours???

Joe D
Back to top
View user's profile Photo Gallery
Dontos
Power User

Offline Offline
Joined: Jan 24, 2006
Posts: 3436
Location: Vine Grove, KY
PostPosted: Mon Mar 20, 2006 1:28 pm
Post subject: Re: fume extractors-- questions?

- Joe_D
Could always tell who had a sticky one because the back was bashed in. Howz cum yoos got to bash yours???
Joe D


As an 'IP' tanker going into transition onto M1A1's,....

Always had to use the sledge on my ol' M1's & IPM1's, no matter how much lube is applied previously,.... so....

WHACK!!! Shocked (uh oh,....Hey, wheres that 2404...? I got something else to write down... )

_________________
"Gonna hold my breath until Armor returns home..."
Back to top
View user's profile Send e-mail Visit poster's website AIM Address Yahoo Messenger Photo Gallery
Joe_D
Power User

Offline Offline
Joined: Jan 29, 2006
Posts: 2066
Location: Razorback Country
PostPosted: Mon Mar 20, 2006 1:33 pm
Post subject: Re: fume extractors-- questions?

So that's the rest of the story,

It happens.

Joe D
Back to top
View user's profile Photo Gallery
oldtop
Power User

Offline Offline
Joined: Mar 17, 2006
Posts: 70

PostPosted: Mon Mar 20, 2006 1:56 pm
Post subject: Re: fume extractors-- questions?

When firing the 90mm on the M48 (even with it's "bore evacuator") the breech gases were so bad I wore a M14-17 vehicle crewmen's field protective masks, if you left the @#$@ turret blower on you couldn't hear a thing, with the M48A3 you had a air filtering unit and you could plug your mask into it.
....The main gun round ( 90 and even 105) were some what smaller back then and a lot of loaders (me when acting as a loader) would "lap-load" which was when the loader sat on his knees just behind and to the left of the main with four or five rounds across his lap, the gunner cold fire four rounds in 30 sec this way. The breech gases would get very thick .
....On the selfpropelled guns like the M109 ( first versions 155 mm Howitzers) the bore evacuators worK with rolling ball check valve system and in Nam they quickly wore out and became useless (someone forgot to reorder them and the "O" rings in the supply system...something like repair parts for that @#%$# Ontos M50 "PIG"!!!!.
....Sorry I get a little upset when thinking about the Marine Corps so called "supply system" Grrrrrr. Anyway the fumes would get so bad in the gun cabs you worked in a greenish haze and when you stood down from a fire mission your skin was covered with a coating that you had to wash off with soap and water (if you didn't use soap the coating turned to a greenish slime) you also deveolped what was called "gunner's chough" as the slime came out of your lungs
...Even as the Battery maint chief I stood in as a "number one man" in a gun section (thats the rammer-jammer) . As No. 1 you rammed home the projo with your fist (hyd rammers were only used for "danger close" missions) then loaded the propelent charge, hit the breech cam (this relested the the 100 lbs breech block which was under spring pressure, this was watch your fingers time!!) The no.1 man also had his mouth full of primer cartridges and he would insert one in the percussion mechanism and slap it to firing postion, the command was "stand by....fire" and you pulled the lanyard (not jerk) ..band and the gun recoiled back ,the breech open on return to "battery" and the breech cam plate held it open.
...In May of 1969 Kilo 4/12 went into a fire mission at 08:00 and at 08:00 the next morning they were still in that mission, the guns were so hot that the water they were being sponged with was turning to steam and the Hyd fluid was blowing out of the system acculators.. there were greenish fumes that could be seen drifting out the cabs side hatches. This fire mission was in support of the Army troopers fight for "Hamburger hill".
...The empty powder cans and projo pallets were piled over 8' high behine each gun, during this fight kilo 4/12 was under "counter battery" fire by 130mm guns in the DMZ over 30,000 yards away, Kilo never broke from the support mission , they took the enemy fire and kept on firing. At the time Kilo's postion was at a little hell hole of a fire base called "The Rockpile". The Battery fired over 3,000 rounds during the fire mission. A side note, the rate of fire for an M109 by the book was one round per minute, Kilo was firing 3 to 4 per minute...how those boys did shine!
...By the way the German WW II Panther tanks had an "air injection" system to clear the fumes out the muzzle from the breech and gun tube.
Back to top
View user's profile
mike_Duplessis
Power User

Offline Offline
Joined: Jan 24, 2006
Posts: 236

PostPosted: Mon Mar 20, 2006 2:15 pm
Post subject: Re: fume extractors-- questions?

I'm trying to think - who gets credit for first putting a 'modern' bore evacuator can onto a gun barrel? The British 20 pounder? The M47's 90mm gun, or the 100mm gun on the T-54? They all seemed to pop up at exactly the same moment!
Back to top
View user's profile
Display posts from previous:   
Post new topic    Reply to topic    Printer Friendly Page    Forum Index ›  AFV News Discussion Board
Page 1 of 2
All times are GMT - 6 Hours
Go to page 1, 2  Next



Jump to:  


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum