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The FReeper Foxhole's TreadHead Tuesday - Sd. Kfz. 2 Kettenkraftrad Oct. 18, 2005
See Educational Sources

Posted on 10/17/2005 7:51:59 PM PDT by alfa6



Lord,

Keep our Troops forever in Your care

Give them victory over the enemy...

Grant them a safe and swift return...

Bless those who mourn the lost.
.

FReepers from the Foxhole join in prayer
for all those serving their country at this time.


.................................................................. .................... ...........................................

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HK 101 Sd. Kfz.2 Kettenkraftrad





The Kettenkraftrad, type HK 101 is one of the most unique vehicles developed during the Second World War. The "tracked motorcycle" concept was conceived and patented by a German inventor, Heinrich Ernst Kniepkamp, in June of 1939. This was in response to a request for a fast, tracked vehicle capable of moving small loads in mountainous terrain.



The 'HK 101' Sd. Kfz. 2 Kettenkrad was originally conceived as a light prime mover for mountain troops to be used for towing ight mountain guns, mortars, the MG36 and telephone wire drums. It found favor with all Wehrmacht troops, especially those in the Eastern Front where it's excellent cross-country ability allowed it to manuever in the mud-bogged roads and the mountainous Caucasus region. It was also engaged by paratroopers units and by the Luftwaffe for aircraft moving duty.



It was however, the NSU Werke of Neckarsulm, Germany that developed the Kettenkrad as we know it. Interestingly, many of the prototypes used spoked motorcycle wheels, not only for the front and road wheels, but also on its attendant trailer. Trailers for the Kettenkrad were a concurrent development and are discussed later in this article. Although the concept was embraced immediately, the vehicle was not introduced is troop service until early June of 1941. The official designation was "kleines Kettenkraftrad SdKfz. 2". "Kettenkrad" became the common abbreviation soon after.



Powered by a 4 cylinder 1.5 ltr. Opel-Olympia water-cooled engine, its top speed was 80 kph. It carried a crew of 3. Built by NSU Werke AG Neckarsulm and Stower Werke Stettin, a total of 8345 vehicles were produced between 1940 and 1944.



Production was expanded to the Stoewer Werke in 1943 and by war's end 8,345 vehicles had been produced (although some higher serial numbers have been reported). The French firm of SIMCA manufactured parts for the Kettenkrad but they did not produce or assemble the entire vehicle.



Variants

* SdKfz 2 - light towing tractor
* SdKfz 2/1 - cable laying tractor for field phone



Assembly of the Kettenkrad at the NSU Werkes is said to have continued until 1948. Approximately 550 post war Kettenkrads are reported to have been assembled using existing parts as well as portions of wartime units that were in Neckarsulm for major service. Some vehicles are said to have been imported into the U.S. to see use with the Forest Service but I have not been able to find any records to verify this.



At least one French company, Babiolle, offered rebuilt versions of discarded Kettenkrads after the war. These had the front wheel and steering gear removed to create a small farm tractor. The mostinteresting thing about this vehicle was that it operated "backwards". The redesign included changes to the gearbox and reversed the chassis so the drive (sprocket) wheel was in the rear instead of the front.



There were two sub-variants of the Kettenkrad, SdKfz. 2/1 "kleines Kettenkraftrad fur Feldfernkabel" and SdKfz. 2/2 "kleines Kettenkraftrad fur schwere Feldfernkabel." Both vehicles were used in conjunction with a trailer and had field communication wire spools mounted behind the driver. The 2/1 vehicle mounted a small wire spool and frame similar to the backpack piece used by the infantry. The 2/2 utilized much larger spools, two of which were mounted on a frame behind the driver. Additional spools were mounted in a specialized trailer (Sd.Anh. 1). Late in the war, portions of the stretched version HK 102 Kettenkraftrad suspension were used to create the "Springer" demolition vehicle. This was designed as a replacement to the Borgward series and NSU (only) produced about 50 of these vehicles by war's end.



There were several different trailers designed during the war for the Kettenkrad. The first was designed with the prototype and never reached production status. The second, was the most numerous and was a derivation of the earlier prototype with a longer hitch pole and solid disk wheels. This trailer had the designation of Sd.Anh. 1 (sonderanhanger: "special trailer") This was the only one designed exclusively for the Kettenkrad. Two variations of this trailer, the Sd.Anh. 1.1 and the Sd.Anh. 1/2 . Both of these were modified to be used in conjunction with the SdKfz. 2/1 and SdKfz. 2/2 respectively. These trailers were fitted with cable drum mounting devices.



The other trailers used by the Kettenkrads could be used for other lightweight vehicles such as the Kubelwagon and the Schwimmwagon. One of these was designed specially for use with Gebirgsjager units and was a modification of the standard infantry cart (Infanteriekarren). The infantry cart had exchangeable tow bars. One with handles for human power towing, one with a "lunette eye" for the towing pintle as on the Kettenkrad, and one for dog towing



The Kettenkrad has enjoyed, from what I can tell, a bit of a reputation as a poorman's war vehicle. There are for the, relativly few numbers manufactured, quite a few of them still around and running. Check out the Educational sources for more info on the civie versions of the Sd.Kfz 2 Kettenkrad.








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TOPICS: VetsCoR
KEYWORDS: armor; freeperfoxhole; tanks; treadhead; veterans
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To: alfa6

Thanks alfa6. We certainly know what work goes into putting up a thread. Today's is really neat. What a cool vehicle.


41 posted on 10/18/2005 8:28:53 AM PDT by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
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To: Professional Engineer

Adorable as always.


42 posted on 10/18/2005 8:29:25 AM PDT by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
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To: bentfeather

Good morning feather.


43 posted on 10/18/2005 8:30:00 AM PDT by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
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To: SAMWolf
According to the ops manual in rough terrain it is recommended that you remove the front fork and operate on just the tracks. The top speed is way down, obviously but you can get where ya want to, I guess.

Regards

alfa6 ;>}

44 posted on 10/18/2005 8:40:18 AM PDT by alfa6 (Work....the curse of the drinking class.)
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To: snippy_about_it; SAMWolf

Good morning!!


45 posted on 10/18/2005 8:46:42 AM PDT by Soaring Feather (If down is up, is up, down. Feathers in the wind.)
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To: martin_fierro

Das isa goot von!


46 posted on 10/18/2005 8:58:50 AM PDT by blackie (Be Well~Be Armed~Be Safe~Molon Labe!)
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To: JoeSixPack1

You gonna buy one for your old uncle blackie? ;)


47 posted on 10/18/2005 9:14:09 AM PDT by blackie (Be Well~Be Armed~Be Safe~Molon Labe!)
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To: martin_fierro; JoeSixPack1

Pair of Telefunken U47's
48 posted on 10/18/2005 9:21:21 AM PDT by blackie (Be Well~Be Armed~Be Safe~Molon Labe!)
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To: alfa6

Cool machine. I've been enamoured with these with some time.


49 posted on 10/18/2005 9:51:47 AM PDT by Professional Engineer (Yes, the world does revolve around us. We picked the coordinate system.)
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To: bentfeather

Hi miss Feather


50 posted on 10/18/2005 9:52:55 AM PDT by Professional Engineer (Yes, the world does revolve around us. We picked the coordinate system.)
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To: alfa6

I look at this Kett and think about so many other German innovations, their Panzers, the mighty 88, the ME 262, and I realize what a really formidable opponent they were. It is no wonder that they overran the Europe, North Africa and Russia.

Fighting Germany was the ultimate confrontation. These ragheads we are fighting now are not even in the same league.


51 posted on 10/18/2005 9:54:45 AM PDT by sasportas
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To: alfa6
Bitty girl is looking good there P.E.

She's feeling better as well. Of course she'll passed on to dear old dad.

52 posted on 10/18/2005 9:57:12 AM PDT by Professional Engineer (Yes, the world does revolve around us. We picked the coordinate system.)
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To: Valin
1926 George C Scott Wise Va, actor (Patton, Bible, Taps, Hardcore)


53 posted on 10/18/2005 10:04:35 AM PDT by Professional Engineer (Yes, the world does revolve around us. We picked the coordinate system.)
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To: SAMWolf

Hiya Sam


54 posted on 10/18/2005 10:08:37 AM PDT by Professional Engineer (Yes, the world does revolve around us. We picked the coordinate system.)
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To: snippy_about_it

Howdy ma'am


55 posted on 10/18/2005 10:11:37 AM PDT by Professional Engineer (Yes, the world does revolve around us. We picked the coordinate system.)
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To: alfa6
Thanks, Alfa, for continuing the Treadhead Tuesday tradition!

BTW, what an odd little vehicle. Did the front wheel handle all the steering or did the tracks also help?

56 posted on 10/18/2005 11:42:10 AM PDT by colorado tanker (I can't comment on things that might come before the Court, but I can tell you my Pinochle strategy)
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To: Professional Engineer; SAMWolf

Ahhhh.

I just had a very handsome young man from the US Army come into the store. He is an infantry man just out of basic but assigned to local recruiting.

The poor soul was nervous. "Would we consider letting him put up his brochures?"

Of course I was beaming and telling him about Sam and how we would be proud to put up their display and of course thanked him for his service.

It's a good day. :-)


57 posted on 10/18/2005 1:35:37 PM PDT by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
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To: colorado tanker
Been wondering just exactly that. I think the front wheel was used with both tracks running on the output of a differential and free to run at different speeds. At slow speeds the right and left track (differential) brakes were used.

Hints were: taking front wheel off for rough ground and going slowly.

3rd pic from top shows maybe a brake disc on the left.

#20 post shows the top of the differential brake covers with ventilation holes.

#26 shows differential brake operation pedals. Just like an old tractor.

The whole thing is set up like an old tractor.
58 posted on 10/18/2005 1:55:51 PM PDT by Iris7 ("Let me go to the house of the Father.")
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To: Iris7

Thanks, Iris. Very astute. I think you're right.


59 posted on 10/18/2005 2:07:46 PM PDT by colorado tanker (I can't comment on things that might come before the Court, but I can tell you my Pinochle strategy)
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To: snippy_about_it

Awesome!!!


60 posted on 10/18/2005 2:23:43 PM PDT by Professional Engineer (Yes, the world does revolve around us. We picked the coordinate system.)
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