M45 Build
#26
He he! Looks like the speaker in my Pershing! 
~ Jeff

~ Jeff
#28
Lookin' good! 
I guess it hasn't been that long ago that I built mine because these pics are making it all come back.
~ Jeff
I guess it hasn't been that long ago that I built mine because these pics are making it all come back.

~ Jeff
#29
Sorry but I have to say you lost most of the bass-reflex effect so most of the frequencies below 100-150 hz were lost with such modification. You still can save something trying to make some hole ( about 1/2 inch) in some place but should look for the best to get the resonance frequency of the speaker.
The size of a loudspeaker with his woofer is not taken at random, but perfectly calculated, more coming from Tamiya, in fact that's the reason they sound so good. If you had made the test whitout the plastic case would be realized the amount of loudness you lost.
The size of a loudspeaker with his woofer is not taken at random, but perfectly calculated, more coming from Tamiya, in fact that's the reason they sound so good. If you had made the test whitout the plastic case would be realized the amount of loudness you lost.
#30
Not really. I have already made the same modification to my Pershing and the sound quality is the same. These are not home speakers therefore this small change will not affect it. 
~ Jeff

~ Jeff
#31
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cant tell a differance in the quality of the sound and the Bass is still good and if I turn the sound up all the way it is still too loud to run at Danville as it will drown out any tank that is close and revirb off the roof.
#32
Ok, obviously is not something that you will not sleep with
, I just wanted to point how that works.
Anyway you can make a simple test, remove the plastic case, close the hull and record the sound, then replace the case and do the same ( talking about an uncut speaker box).
Play both sounds using some audio amplifier with graphic equalizer and you will realize the function of the box.
There is not a problem if you made the cut, still this is a hobby, I just wanted to tell you how the thing works, there was not a bad intention or ridicule your work.
Well now we were talking about sound I'm going to enjoy the one of my T55 Hooben [:@]
, I just wanted to point how that works. Anyway you can make a simple test, remove the plastic case, close the hull and record the sound, then replace the case and do the same ( talking about an uncut speaker box).
Play both sounds using some audio amplifier with graphic equalizer and you will realize the function of the box.
There is not a problem if you made the cut, still this is a hobby, I just wanted to tell you how the thing works, there was not a bad intention or ridicule your work.

Well now we were talking about sound I'm going to enjoy the one of my T55 Hooben [:@]
#33
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The lower chassis is finished and up and running
. Speed tests averaged 10.9 seconds for 25 ft which is .01 seconds faster that 25 smph So I am at the historical sustained speed of the M45 though the documentation lists a 30 mph "dash" speed. I will post some pictures later of the layout of the completed chassis and the progress so far on the upper hull.
. Speed tests averaged 10.9 seconds for 25 ft which is .01 seconds faster that 25 smph So I am at the historical sustained speed of the M45 though the documentation lists a 30 mph "dash" speed. I will post some pictures later of the layout of the completed chassis and the progress so far on the upper hull.
#35
Sounds like it's already for some paint now! How about a camo scheme for it? 
~ Jeff

~ Jeff
#36
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I found a picture off a 6th tank M45 in Korea crossing a river on the Pusan break out - it had the periscope guards over the two middle periscops as well as the two front hatches.
#37

ORIGINAL: Pershing.Driver
I found a picture off a 6th tank M45 in Korea crossing a river on the Pusan break out - it had the periscope guards over the two middle periscops as well as the two front hatches.
I found a picture off a 6th tank M45 in Korea crossing a river on the Pusan break out - it had the periscope guards over the two middle periscops as well as the two front hatches.
As I recall, the first medium armor to arrive in Pusan (or Korea for that matter) were the Marines' M26s...and those were new to the Marines (1st Tank Bn, I think). The Marines never had the M45. They used the M4A3(105) instead as a support tank. Later in the war, they started to receive the M46s.
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Here are some photos of the exhaust and the servo elevation unit I use. I don't care for Tamiya elevation unit and using a servo allows me to seperate the elevation and firing the gun onto differant channels. The white servo holder is something I designed in a CAD program and then have 3D printed from Fastproto a prototyping service.
#41
Looking pretty good! How's it coming along now?
~ Jeff
~ Jeff
#45

ORIGINAL: Pershing.Driver
Here is the photo the I am trying to find the site so I can post the whole blurb next to the photo
Here is the photo the I am trying to find the site so I can post the whole blurb next to the photo
I found it with a label in two books, both by Steve Zaloga: "T-34-85 vs Pershing: Korea 1950" and "M26/M46 Pershing Tank: 1943-1953"
Those books have some other angles for photos, too, that should be helpful.
#46
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Great info... I thought only the Marines had M45 in Korea guess I am changing the decals. You can have any color tank you want as long as its OD green.
#48
Are those magnets holding the turret together?
~ Jeff
~ Jeff
#49
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ORIGINAL: Pershing.Driver
Here is the photo the I am trying to find the site so I can post the whole blurb next to the photo
Here is the photo the I am trying to find the site so I can post the whole blurb next to the photo
M45 tank of the Headquarters and Service Company, 6th Tank Battalion,
crossing the Kum river, Septermber 16, 1950 during the breakout from the Pusan Perimeter.
The M45 was essentially an M26 tank with a 105mm howitzer in place of the 90mm gun.
Records indicate the 6th Tank Battalion was the only unit in Korea equipped with these tanks
and M46 tanks had replaced all of them by early 1951. (NACP)
Source
Battle Orders
US Army Foreces in the Korean War 1950-53
Osprey Publishing
ISBN 1-84176-621-6
#50

ORIGINAL: Pershing.Driver
Great info... I thought only the Marines had M45 in Korea guess I am changing the decals. You can have any color tank you want as long as its OD green.
Great info... I thought only the Marines had M45 in Korea guess I am changing the decals. You can have any color tank you want as long as its OD green.
Found an interesting picture during my research of an M26 with wading stacks for the air intakes and exhaust...never seen that before.
Good build...it's coming along nicely.




