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Subject: Canadian M777's
ArtyEngineer    1/24/2006 11:05:04 PM
Here is a link to the canadian forces website regarding their new M777 Howitzers. Pretty good video clip of some of the operator training conducted at Sill contained on same page. http://www.army.forces.gc.ca/lf/English/6_1_1.asp?FlashEnabled=1&id=808
 
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Smoke WP    RE:Canadian M777's - Smoke   4/17/2006 5:30:11 PM
Question for ArtyEngineer - Was the M777 tested in a winter envoirment.
 
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ArtyEngineer    RE:Canadian M777's - Smoke   4/17/2006 6:14:30 PM
Oh Yes, I still have nightmares about it ;) My self an a few other unfortunate souls spent several months at Ft Greely Cold Regions Test Centre (CRTC) in Alaska a few years back developing and testing the cold weather procedures. Prior to actually going to that climate we did alot of work in the Cold Chamber at Yuma Proving Ground, this is a very impressive facility that can get the temperature down to - 60 or there abouts!!!!! We could even fire out of it. Doing maintenance on a weapon which has cold soaked at -60 is no fun at all.
 
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Smoke WP    RE:Canadian M777's - Smoke   4/17/2006 6:51:52 PM
Are there any changes in handling the M777 in winter, as there would be in summer
 
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ArtyEngineer    RE:Canadian M777's - Smoke   4/17/2006 7:19:14 PM
For teh operators the only thing they need to be mindfull of is keeping the top surfaces free from accumulated snow. If on recoil this snow falls into the carriage it can get compacted and cause the cannon to not fully return to battery. ON the M777 this will activate an interlock which will shut of the scavenge system, and there will be no power to open the breech or operate the loading tray. This is a safety feature to prevent loading and firning of the weapon in an insafe condition. For the maintenance personnel the main change is that the various nitrigen resevoirs are charged to a much higher pre charge to account for the fact that hydraulic fluid gets very thick and viscous at sub zero temperatures. The also need to reset a few of the flow control valves to ensure that breech and loading tray operate at teh desired speed.
 
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Griffin    RE:Canadian M777's - Smoke   4/17/2006 11:28:13 PM
Some of you may be interested to know that the M777 has proven its worth in recent firefights with the Taliban against Afghan, Afghan Army, and Canadian troops. Last Friday the Taliban lost 41 of theirs in a fierce firefight that eventually had 100 Cdn. soldiers, the RAF and US Army Apache's taking part. This is the second bloody nose they've taken in 2-weeks where the Cdn. were involved. Unfortunately the Afghan's didn't call in the Cdn. sooner of the KIA and WIA on the Taliban side would have been more lopsided and possibly fewer Afghan Police and Army personnel would have died. There is also a problem of friendly fire that occurs when the poorer trained Afghan forces don't communicate or operate at the same level NATO forces do.
 
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ArtyEngineer    RE:Canadian M777's - Griffin   4/18/2006 10:39:34 AM
I am very glad to hear that they are proving a valuable asset to the guys in A'stan. Makes all the long hours and pressure of getting those weapons ready worthwhile ;). Its a good feeling to know "My Guns" are out there doing there job.
 
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Smoke WP    RE:Canadian M777's - Smoke   4/18/2006 11:30:10 AM
These cold weather changes to flow control valves and such, can these changes be done at the gun site or does the gun have to come out of service.
 
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ArtyEngineer    RE:Canadian M777's - Smoke   4/18/2006 11:46:18 AM
Very easy to do, and is usually done as part of the winterisation procedure before the wweapon is deployed to that climate, it requires a 4mm allen wrench and a 15mm combination wrench, takes about 5 minutes to do. Ther are 4 valves, one each controlling breech opening speed, closing speed, tray lowering speed and tray raising speed. Speeds are usually set so that everything operates in the 0.5 to 1 second range
 
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Smoke WP    RE:Canadian M777's - Smoke   4/19/2006 7:55:23 AM
ArtyEngineer, Thank you for taking the time to answer my questions. I am lucky to have found a training/maintenance manual(you):-),that answeres my boring questions. I will have more questions for you as I learn more about the Triple7. Thank you, again
 
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ArtyEngineer    RE:Canadian M777's - Smoke   4/19/2006 6:06:06 PM
Any time smoke, drop me a line at [email protected] and i will give you my real email address. Have quite a few nice little video clips of the M777 I could send you.
 
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