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Tender drive or Loco drive

6097 Views 11 Replies 6 Participants Last post by  7113
This topic has been going on for ages in our forum in Turkey between Marklin users and the rest. When I mean the rest I mean all other major brands that I know of whom are all tender driven. An exception might be the Roco steams which has a kind of shaft running thru the tender to the loco body transmitting the torque to the main wheels as well. I call it 4 wheel drive
.However that has its kickback too because any out of sync tends to lock the loco wheels.

Anyway, I'd like to have yr opinion on this subject. Marklin users claim that their Loco bodies are all, I'd like to call it: Full metal Jacket,all metal plus the motor being in the loco body, all in one, creates a very high pulling power, very null derailments...etc. compared with the tender driven brands.

The funny thing is I am abt to belive its merits too. My Liliput Br 52 is tender driven. The tender is all metal. loco chasis is metal and body plastic. I am experiencing a lot of derailments specially on points. I admit the Br 52 hates curves being a 2 - 10 -0 , but is it due to the fact that its tender driven? The loco body being lighter then the tender?


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Personally I do not care where the motor is or what wheels it drives as long as the locomotive performs ! I have the same view on traction tyres. At the end of the day as soon as you put an electric motor into a steam outline loco you have compromised anyway.

My steam outline locomotives are a mixture of both tender & loco drive. Generally, the ones with tender drive & traction tyres have the most traction with the exception of the Trix BR44 (a 2-10-0) which is locomotive drive, motor in the cab & a metal body. We had 42 bogie coaches behind it on St.Laurent & apart from have to pull away very gently was well within its capability - we were trying to go for "44 behind a 44" but ended up with the buffers on the 44 6"/15cm behind the last coach !

Next time we have a play I will video the results but also would like to try a couple of UK outline locos for comparison.
QUOTE (BRITHO @ 11 Apr 2007, 17:27) <{POST_SNAPBACK}>Love to help, but I don't think my fleet would be much use Fleischmann Warships, Lima 33's, all HO of course. (Mind you the 33's are a bit gutless, but they pull enough for my needs.)



You'll be surprised - some small & light locomotives can be quite sure footed !
QUOTE (ebaykal @ 11 Apr 2007, 18:27) <{POST_SNAPBACK}>most derailments occur with the very first guide wheels derailing first when going thru points and tight curves. Its a matter of weight I guess.

Check to see if there is sufficient movement in every direction for the pony truck (first guide wheels) to move. Some have the a spring on the pony truck. Some models also have to have the piston tails removed.I've never really had the problems that you are having, even with 2-10-0 locomotives.

Also check that there is enough side play in the "driving" wheels.
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