±Recent Visitors

Recent Visitors to Com-Central!

±User Info-big


Welcome Anonymous

Nickname
Password

Membership:
Latest: HighestAce
New Today: 0
New Yesterday: 0
Overall: 6648

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

Staff Online:

No staff members are online!
MBT70
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.
Post new topic    Reply to topic    Printer Friendly Page     Forum Index ›  AFV News Discussion Board

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

Offline Offline
Joined: Jan 26, 2006
Posts: 147

PostPosted: Sat Apr 11, 2015 1:28 am
Post subject: MBT70

Can anyone tell me what I have here? These came into the museum and we are trying to get some background on them. Many look MBT70 ish














Back to top
View user's profile Visit poster's website
3R22R
Power User

Offline Offline
Joined: Dec 22, 2006
Posts: 32
Location: Ste-Agathe des Monts QC
PostPosted: Sat Apr 11, 2015 3:46 am
Post subject: Re: MBT70

Top right and bottom left look M60A2 (ish)!

_________________
Guy
Back to top
View user's profile Send e-mail
Rick_Eshleman
Power User

Offline Offline
Joined: Apr 26, 2011
Posts: 909
Location: Lewes, Delaware, USA
PostPosted: Sat Apr 11, 2015 10:23 am
Post subject: Re: MBT70

Concepts. #63 looks like an MBT-70, #62 looks like an atomic (engine) tank, the next two (couldn't see any numbers) look like M60A2 pilots, next one seems like another atomic tank, last one another M60A2 type. All M60A2 types seem to have T95 Tank type suspensions. These drawings seem very much like Questionmark IV conceptual drawings. I made a copy of Questionmark IV that I found at MHI, Carlisle, PA 30 years ago. If I can find it I'll see if any of these drawings are in it. Rick
Back to top
View user's profile Send e-mail AIM Address Photo Gallery
Andrei
Power User

Offline Offline
Joined: Feb 05, 2006
Posts: 81

PostPosted: Thu Jan 13, 2022 4:26 pm
Post subject: Re: MBT70

Any news on these projects?


This one looks very interesting, maybe it is continuation of Questionmark III nuclear tank concepts? Any news on it after many years?


About this one -



Also the design is close to the Rheems "Hunter" ideas with conventional gun installed and driver moved to the hull center (after the turret)



Last edited by Andrei on Fri Jan 14, 2022 2:53 pm; edited 4 times in total
Back to top
View user's profile
Andrei
Power User

Offline Offline
Joined: Feb 05, 2006
Posts: 81

PostPosted: Thu Jan 13, 2022 4:28 pm
Post subject: Re: MBT70

- ChrisC
Can anyone tell me what I have here? These came into the


What is the year of these presentation?
Back to top
View user's profile
JiriTintera
Power User

Offline Offline
Joined: Jun 21, 2007
Posts: 218
Location: Prague, Czech Republic
PostPosted: Mon Jan 17, 2022 9:27 am
Post subject: Re: MBT70

Dear colleague,
information about the tank "The Hunter" was once provided by the late Dontos.
Link:
www.com-central.net/in...&view=next
Back to top
View user's profile Send e-mail Visit poster's website
Andrei
Power User

Offline Offline
Joined: Feb 05, 2006
Posts: 81

PostPosted: Fri Feb 04, 2022 4:15 pm
Post subject: Re: MBT70

Back to top
View user's profile
Andrei
Power User

Offline Offline
Joined: Feb 05, 2006
Posts: 81

PostPosted: Mon May 30, 2022 7:53 am
Post subject: Re: MBT70

FROM: GEN PALMER VCSA WASH DC

TO: GEN POLK CINCUSAREUR HEIDELBERG GER



SUBJECT: MBT-70 (U)

(U) Reference HBG 1865

DA Staff conclusions not yet ready on questions raised by Colonel Baltes regarding

MBT-70/XM803; however, the following constitutes an interim response:

a. Automatic Loader. The 700-round life for the automatic loader applies only to the R&D models. The APE (second generation) loaders, will incorporate all the knowledge gained from the R&D version and should have a life approaching 1500 rounds. At that point (1500 rounds) the loader would be removed from the tank, inspected, and selected parts, such as the rammer head and rammer chain, replaced as necessary. Since the required life of the gun tube is 500 effective-full-charge rounds (equivalent to firing 500 kinetic-energy rounds) or 1000 missiles, it can be expected that the loader inspection and repair will coincide with gun tube replacement. It should also be noted that, in peacetime, most tanks will complete a 6000-mile overhaul cycle without firing 1500 rounds.



b. Overhaul Criterion. The 6000-mile overhaul criterion for the MBT-70 was established several years ago. At that time, the overhaul criteria for the M60 and M48 series tanks was 5000 miles. A 6000-mile criteria for a more complex vehicle such as the MBT-70 was, therefore, considered a significant improvement. The M60 and M48 overhaul criteria has recently been extended to 6000. This extension is made possible by the use of a thorough mid-life service. It may be possible to extend the cycle of the MBT-70/XM803 by a similar mid-life service. However, this cannot be deter­mined at this point in the development cycle. To change the requirement for the MBT-70/XM803 at this time, would necessitate that the component reliability goals be raised, thereby increasing the cost of the tank.



c. Ammunition. The problems associated with combustible case ammunition have not been completely solved, but have been reduced to an acceptable level. In fact, the combustible case in some aspects is superior to the metal case. The ballistic compatibility between the XN411 TPT round and the XN409 HEAT round is not exact, but is so close that the TPT round can be fired from the SHERIDAN using the XM409 sight reticle. The MBT-70 firings at Aberdeen have been done with the XM411 round using the computer set for the XM409 round. In spite of any slight incompatibility, hit probability specifica­tions have been exceeded. Concerning the XM578 APFSDS round, firings of the new modification A’S rounds are underway at Aberdeen. The testing and development schedule for the XM578 are compatible with MBT-70/XM803 develop­ment schedule.



d. Ballistic Protection. The MBT-70 QMR requires frontal ballistic protection against the US/UK 105mm APDS at 800 meters and all-round pro­tection against 14.5mm at zero range. The revised Joint Military Characteristics used in defining the “austere” MBT specified 800-meter frontal protection against Soviet 115mm APFSDS. This change was made because the penetration capability of the two rounds was thought to be comparable. Further investigation, however, indicates that definitive data (upon which everyone agrees) is not available for the Soviet 115mm round. Thus, a test criteria based on 115mm APFSDS cannot be established. USAMC has recommended that the revised MBT-70/XM803 QMR, due for submission to DA on 1 Jun 70, reflect US/UK 105mm APDS rather than the Soviet round. Protection against the current US/UK 105mm APDS round has been achieved at 800 meters through the use of spaced-armor. Invulnerability to Soviet HEAT round based on armor protection alone is not feasible. External arrays such as side skirts (which are being planned for MBT-70/XM803) and bar armor (which at this time is not being considered) would reduce the likelihood of jet penetration of the main armor.



e. Fuel Storage. Colonel Baltes appears to have confused two separate items concerning the removal of nuclear shielding and fuel storage. By agreement with the FRG, the internal boron nuclear shielding was removed from the МВТ in order to save approximately 4400 lbs in weight. There are no plans to store fuel in the spaced-armor of the turret where the shielding was removed. There was a plan to store fuel in the spaced-armor at the front of the hull in order to achieve the 400-mile cruising range specified in the original QMR. Since USACDC has agreed to reduce the cruising range to 325 miles, this additional fuel is not required and plans to store fuel within the spaced armor have been dropped.



f. Secondary Armament. Interim position regarding the secondary armament has not been reached. An essential consideration is that the silhouette of the tank be kept low. In addition to retaining present cal .50 mount on top of commander’s day/night sight, other alternatives being considered are: deletion of secondary armament, use of pintle mounted cal .50,"use of pintle mounted 7.62mm machinegun, and use of a cal .50 as an additional coaxial machinegun in conjunction with any of the preceding.



g. Human Engineering Factors. Human Engineering Factors are being thoroughly considered not only by the contractor but by the Human Engineering Laboratory and by the Armor Center Team. Detailed reviews of both mockups and pilot hardware have been conducted.
Back to top
View user's profile
Andrei
Power User

Offline Offline
Joined: Feb 05, 2006
Posts: 81

PostPosted: Mon May 30, 2022 10:33 am
Post subject: Re: MBT70

Something very strange from 70-s - maybe sommeone knows any details on this turret?
Back to top
View user's profile
Doug_Kibbey
Power User

Offline Offline
Joined: Jan 23, 2006
Posts: 4678
Location: The Great Satan
PostPosted: Tue Jun 14, 2022 10:08 pm
Post subject: Re: MBT70

Do you have a date for that MBT-70 document? The XM-409 issue in particular was not limited to the combustible case, but also (and more seriously in their perception) to premature detonations. Usually in-tube. This was for sure being observed as late as 1969 even as they moved to standardize the system.
Ridiculously, the definition of "catastrophic failures" during gunnery included only failures that occurred after the trigger was pulled. This was reflected in the Catastrophic Event Probabilities with regard to gunnery.
Back to top
View user's profile Visit poster's website Photo Gallery
Display posts from previous:   
Post new topic    Reply to topic    Printer Friendly Page    Forum Index ›  AFV News Discussion Board
Page 1 of 1
All times are GMT - 6 Hours



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