{Disarmed} RE: [TANKS] T-34 origins

[Paul Hilton]

Also, Chrys from Greece made a BT.  I'm sort of stalled in the middle of a
BT-7.  If you need any pics or info, I'm your guy.

  And.   the Polish tank was a 10-TP, I had it turned around.

 

 

From: rctankcombat@googlegroups.com [mailto:rctankcombat@googlegroups.com]
On Behalf Of Jeremy Caylor
Sent: Thursday, March 31, 2011 1:12 AM
To: rctankcombat@googlegroups.com
Subject: Re: [TANKS] T-34 origins

 

Its called the BT-7, and yes the early versions could run on roads with the
tracks removed, but the design was switched to only allow tracked travel due
to the trackless design being impractical.

On Mar 31, 2011 12:07 AM,  wrote:
> don't know what it was called before that, but i think there is a tank fan

> in here that should know - it looks like one of them tanks that could run 
> with or without tracks. i think it had light armor and could travel at
fast 
> speeds, someone i thought made a tank similar to it, i think it was even 
> mocked up out of cardboard first
> 
> Chris,
> _Odyssey Slipways_ (http://hometown.aol.com/odysseyslipways/index.html) 
> 
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{Disarmed} RE: [TANKS] T-34 origins

[Paul Hilton]

Yep, BT-7.  Basic design by J. Walter Christie.  By all accounts Mr.
Christie was rather difficult to deal with.  He had several run ins with the
war department.  His designs were also influential in the development of the
British "cruiser" tanks such as the Comet and Cromwell as well as the Polish
TP-10.  As far as I've been able to find out, there is a single example of a
Christie M-1928 or T-3 Combat Car at Aberdeen Proving Ground.

 

From: rctankcombat@googlegroups.com [mailto:rctankcombat@googlegroups.com]
On Behalf Of Jeremy Caylor
Sent: Thursday, March 31, 2011 1:12 AM
To: rctankcombat@googlegroups.com
Subject: Re: [TANKS] T-34 origins

 

Its called the BT-7, and yes the early versions could run on roads with the
tracks removed, but the design was switched to only allow tracked travel due
to the trackless design being impractical.

On Mar 31, 2011 12:07 AM,  wrote:
> don't know what it was called before that, but i think there is a tank fan

> in here that should know - it looks like one of them tanks that could run 
> with or without tracks. i think it had light armor and could travel at
fast 
> speeds, someone i thought made a tank similar to it, i think it was even 
> mocked up out of cardboard first
> 
> Chris,
> _Odyssey Slipways_ (http://hometown.aol.com/odysseyslipways/index.html) 
> 
> -- 
> You are currently subscribed to the "R/C Tank Combat" group.
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> Visit the group at http://groups.google.com/group/rctankcombat

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Re: [TANKS] T-34 origins

[Jeremy Caylor]

Its called the BT-7, and yes the early versions could run on roads with the
tracks removed, but the design was switched to only allow tracked travel due
to the trackless design being impractical.
On Mar 31, 2011 12:07 AM,  wrote:
> don't know what it was called before that, but i think there is a tank fan

> in here that should know - it looks like one of them tanks that could run
> with or without tracks. i think it had light armor and could travel at
fast
> speeds, someone i thought made a tank similar to it, i think it was even
> mocked up out of cardboard first
>
> Chris,
> _Odyssey Slipways_ (http://hometown.aol.com/odysseyslipways/index.html)
>
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Re: [TANKS] T-34 origins

[OdysseySlipways]

don't know what it was called before that, but i think there is a tank fan  
in here that should know - it looks like one of them tanks that could run 
with  or without tracks. i think it had light armor and could travel at fast 
speeds,  someone i thought made a tank similar to it, i think it was even 
mocked up out  of cardboard first
 
Chris,
_Odyssey  Slipways_ (http://hometown.aol.com/odysseyslipways/index.html) 

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[TANKS] T-34 origins

[Ryan P .]

I saw this tank on tv once. Designed by an American after ww1. Sold to Russia 
and became t-34. So what was it called before that?




Ryan p.

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[TANKS] TTS

[Ryan P .]

How well do the guide teeth hold on the TTS system? Any break?

Ryan p.

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Re: [TANKS] Re: suspension

[Ryan P .]

I've come up with a concept for a vvss system for my Sherman. Pic will follow.

Ryan p.


On Mar 30, 2011, at 12:19 PM, Cobra  wrote:

> I could not be happier with the performance of my suspension. Near
> perfect for my purpose.
> 
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RE: [TANKS] explain this battery to me please....

[R Bottomley]

just wondering if someone can explain to me why this battery cost so much? I
looked it over and thought maybe it was a LifePo4 (or what ever you may call
them) and it just wasn't listed in the main line of the listing

 

It says right there on that page "Lead-Acid Battery" and that price is for
two batteries, not one.

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[TANKS] Re: Lipo 12V 10Ah

[Chris. b]

Battery management system, it basically balances and monitors the
cells.

No battery likes being taken past 90% DOD or depth of discharge. That
said its not imposible to do so and I have done it myself.

Lipos (good ones anyway) are rated at 2000 cycles at 80% DOD. 3000
cycles at 70% DOD

The point with lipos is to never let them get under 80% or you will
kill them. Keeping in mind that lipos have a much better voltage
curve, at 80% they will still be putting out near full voltage. As
with leads the voltage sags dramatically as you draw current from
them. Thats why you need a BMS because there really is no way to tell
when the batteries are getting to 80% DOD and the bms should kick in
and shut them off to prevent damage.

Personally I would be using these
http://currentevtech.com/Lithium-Batteries/Headway/Headway-40160S-16ah-cell-LiFePO4-p42.html
if I was to go lipo.

Chris. b

On Mar 31, 12:10 am, odysseyslipw...@aol.com wrote:
> In a message dated 3/30/2011 3:14:06 A.M. Eastern Daylight Time,  
>
> barthelso...@hotmail.com writes:
>
> Much  better in most ways. Weight, power density, cycle life.
>
> Cons spendy,  need to be very carefully looked after (a BMS is
> essential for 2 or more  batteries) and discharge rates can be lower
> then some Lead  acids.
>
> Chris. b
>
> BMS? what's that
>
> Chris,
> _Odyssey  Slipways_ (http://hometown.aol.com/odysseyslipways/index.html)

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[TANKS] Re: suspension

[Cobra]

I could not be happier with the performance of my suspension. Near
perfect for my purpose.

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Re: [TANKS] Re: Lipo 12V 10Ah

[OdysseySlipways]

 
 
In a message dated 3/30/2011 3:14:06 A.M. Eastern Daylight Time,  
barthelso...@hotmail.com writes:

Much  better in most ways. Weight, power density, cycle life.

Cons spendy,  need to be very carefully looked after (a BMS is
essential for 2 or more  batteries) and discharge rates can be lower
then some Lead  acids.

Chris. b

BMS? what's that

 
Chris,
_Odyssey  Slipways_ (http://hometown.aol.com/odysseyslipways/index.html) 

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Re: [TANKS] explain this battery to me please....

[OdysseySlipways]

 
 
In a message dated 3/30/2011 8:00:18 A.M. Eastern Daylight Time,  
ki4...@gmail.com writes:

Probably  that expensive because it's a 2-pack of 10AH, 12V batteries,
with shipping  included in the price.  Not really out of  line.



i have been looking at single 12v 10a batteries (so called) free  shipping 
for $25.00 a piece (on average) so the price is pretty much double the  
going rate (but then things like this are seen elsewhere on E-bay where they 
ask 
 unreal prices) the only think i did take note to is the weight, it seems 
to  be almost 1.5 pounds more than other batteries
 
Chris,
_Odyssey  Slipways_ (http://hometown.aol.com/odysseyslipways/index.html) 

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Re: [TANKS] Re: Lipo 12V 10Ah

[Clark Ward Jr]

LiPo's are good for greater than 6 years at 90% rated capacity?  Not
being combative, just curious;  my experience is with lead-acid
batteries of various types.

On Wed, Mar 30, 2011 at 3:13 AM, Chris. b  wrote:
> Much better in most ways. Weight, power dencity, cyclelife.
>
> Cons spendy, need to be very carefully looked after (a BMS is
> essential for 2 or more batteries) and discharge rates can be lower
> then some Lead acids.
>
> Chris. b
>
>
> On Mar 30, 2:55 pm, odysseyslipw...@aol.com wrote:
>> In a message dated 3/29/2011 8:15:09 P.M. Eastern Daylight Time,
>>
>> odysseyslipw...@aol.com writes:
>>
>> _Click  here: K2 Energy 12V 10Ah Lithium Iron Phosphate Battery BMS - eBay
>> (item  390289586256 end time Apr-16-11 13:54:58 PDT)_
>> (http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=390289586256&fromM...
>> watchlink:top:en)
>>
>> in the original posting of this message forgot to add that i was
>> contacting the seller just to find out what the weight of this battery is.
>>
>> i know some in here know a bit about LiPo's and was wondering how they rate
>>  compared to SLA's
>>
>> Chris,
>> _Odyssey  Slipways_ (http://hometown.aol.com/odysseyslipways/index.html)
>
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Re: [TANKS] explain this battery to me please....

[Clark Ward Jr]

Probably that expensive because it's a 2-pack of 10AH, 12V batteries,
with shipping included in the price.  Not really out of line.

On Tue, Mar 29, 2011 at 8:12 PM,   wrote:
> just wondering if someone can explain to me why this battery cost so much? I
> looked it over and thought maybe it was a LifePo4 (or what ever you may call
> them) and it just wasn't listed in the main line of the listing, but don't
> see anything of that in it's description either, so i am just wondering why
> this battery is so costly compared to another SLA
>
> Click here: 2 PACK MK BATTERY ES10-12S (12V, 10AH) FREE SHIP - eBay (item
> 200505678043 end time Apr-03-11 20:35:09 PDT)
>
> Chris,
> Odyssey Slipways
>
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[TANKS] Re: Lipo 12V 10Ah

[Chris. b]

Much better in most ways. Weight, power dencity, cyclelife.

Cons spendy, need to be very carefully looked after (a BMS is
essential for 2 or more batteries) and discharge rates can be lower
then some Lead acids.

Chris. b


On Mar 30, 2:55 pm, odysseyslipw...@aol.com wrote:
> In a message dated 3/29/2011 8:15:09 P.M. Eastern Daylight Time,  
>
> odysseyslipw...@aol.com writes:
>
> _Click  here: K2 Energy 12V 10Ah Lithium Iron Phosphate Battery BMS - eBay
> (item  390289586256 end time Apr-16-11 13:54:58 PDT)_
> (http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=390289586256&fromM...
> watchlink:top:en)  
>
> in the original posting of this message forgot to add that i was  
> contacting the seller just to find out what the weight of this battery is.
>
> i know some in here know a bit about LiPo's and was wondering how they rate
>  compared to SLA's
>
> Chris,
> _Odyssey  Slipways_ (http://hometown.aol.com/odysseyslipways/index.html)

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