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Armor/AFV: Axis - WWII
Armor and ground forces of the Axis forces during World War II.
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Sd.Kfz. 415 Conv. with Telemeter KDO Mod. 40
SpeedyJ
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Posted: Monday, March 11, 2019 - 11:33 PM UTC
Hello.
I want to start with a question, did anyone build this Telemeter KDO Mod.40
Telemeter KDO Mod. 40 from Bronco with Trailer and how is the detail?
Second question: was the Telemeter KDO Mod. 40 used for only one 88 gun, or was it connected to maybe a battery?
Third question is, what vehicle was used to tow? SdKfz 415 seems logical.
I have the conversion from Panzer Concept and I want to complete it with crew, equipment and the possible tow of the trailer. And of course, if there are pictures from the chassis, please let me know where to find.
I Bought 2 kits from IBG for this conversion, so not the AFV Club 4500A.
Gives me quite some spare parts, for exchange and 2 trucks to complete. From Panzer Concepts site 2 pictures are available, so that's all I have for reference until now.

Kind regards,

Robert Jan
BootsDMS
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Posted: Monday, March 11, 2019 - 11:50 PM UTC
Robert,

I haven't built the Bronco kit but you might find the following book useful:

"Sound Locators, Fire Control Systems and Searchlights of the German heavy Flak Units" by Werner Muller published by Schiffer military History.

As I understand it the device would provide data for a complete battery, not a singleton. These rangefinders were also used in the Flak Towers of Berlin, Hamburg and Vienna, or more accurately, the accompanying Fire Control towers.

The Schiffer book also displays the equipment on a rail mounted Battery.

As to a towing vehicle, the book reports "The system was portable using the single-axle Sonderanhaenger 52 trailer. The box with the Em 4m R40 and all accessories, plus batteries, power generator, cable drums, cable cart, crates with the sighting scopes were packed into the Messkw,74 or the 8 ton Zgkw. Kfz 7/6 prime mover."

'Hope this helps somewhere along the line!

Brian
Frenchy
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Posted: Tuesday, March 12, 2019 - 12:51 AM UTC
To complete Brian's post, I guess this should help with question #2 :



H.P.
SpeedyJ
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Posted: Tuesday, March 12, 2019 - 01:38 AM UTC
Thank you both for this information. Will have to search for the book I guess.

Kind regards,

Robert Jan
ayovtshev
#490
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Posted: Tuesday, March 12, 2019 - 02:00 AM UTC
Two more pictures- Krupp L3H143 based Kfz.74:


The second one is towing a RRH(the bulge on the canvas cover accomodates the seat for one of the Horchers), I assume the Sd.Ah.51 with the KdoGeraet 40 is coupled to the rear Sd.Ah 104 trailer.

BTW- Kfz der Wehrmacht states, that Kfz.74 were sofar seen only on Bussing-NAG 500A/4500A trucks.Which might not be true for Bulgaria-we received 8 KdoGeraet 40, but all our Bussing-NAG-4500A trucks were used only to tow Type B Bridge trailers.
I have yet to find some clue whether BN 500A or the Einheitsdiesel(the principal Bulgarian Air Defense and Air Force truck) was used...

Funny though- we were discussing how one should build Kfz.74 with Kalin(k_mero4) few days ago...

Robert-PM me your e-mail and I will send you something,

SpeedyJ
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Posted: Tuesday, March 12, 2019 - 02:26 AM UTC
Hello Angel.
What a coincidence. My plan is to create a group of vehicles waiting to go for transport, yes on a train. After some digging on several Photo sites I found it very interesting to, besides tanks and trucks, load guns too. That gives me the opportunity to build the SdKfz 415 form Panzer Concepts, which is in my stash now (absolutely the best resin kit I saw so far). With some other Büssing trucks and supporting materials, motorcycles, etc. it would make a nice line-up on the platform.
Will send you PM later tonight for sure and many thanks for the picture you come up with all the time.

"edit" found the book and ordered.

Kind regards,

Robert Jan
SpeedyJ
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Posted: Tuesday, March 12, 2019 - 02:45 AM UTC
I think this will be an interesting build. Carries the big box of the Telemeter objective.
Pictures come from Panzer Concepts Site.

[imge]https://i.imgur.com/FKT4TRV.jpg[/img]
Special Büssing NAG I think, hard to find information on this one. Very cool subject!
I want to thank B.J. DeBekker for great service for sending me the missing parts. Arrived within one week from the USA to Thailand.

Kind regards,

Robert Jan:-[ ]
SpeedyJ
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Posted: Tuesday, March 12, 2019 - 03:04 AM UTC
And from the front. (Hope this will show now)
SpeedyJ
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Posted: Wednesday, March 13, 2019 - 02:22 AM UTC
Found a 3rd picture of the 415 on the Kfz site.

Makes me wonder if there are early & late versions for this vehicle. It is mentioned in the text it could be either a Büssing NAG 500A or 4500A.
Arrangement of the air tanks make the difference. 500A has them outside the chassis, 4500A inside the chassis. For building the KDO Mod.40 it has no significant changes. But the hight of the new platform hight for the super structure could be different.
Instructions for the 415 mention a building step 29. Looks like the C profiles the bed is mounted on.
Anyone have the building manual for the Büssing 4500A from AFV Club?
I need to scratch that part.
I started with the KDO Mod.40 today. Pictures will follow soon.

Kind regards,

Robert Jan
ayovtshev
#490
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Posted: Wednesday, March 13, 2019 - 02:42 AM UTC
Robert,

I have the Kfz.100 on Bussing-NAG 4500A truck(AFV Club).

(Edit)
Here is step 29:


Give me the part numbers you are interested in and I will take and post measurements.

BTW, the vehicle in your last post is BN 500A.

165thspc
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Posted: Wednesday, March 13, 2019 - 03:07 AM UTC
Robert you might want to check out this earlier thread on Armorama regarding the Telemeter. This one also covers the building there of: **

https://www.armorama.com/modules.php?op=modload&name=SquawkBox&file=index&req=viewtopic&topic_id=192911

** There are also a couple of control knobs, counter weights and a chart pouch missing from the model. This thread will also talk about adding those!



SpeedyJ
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Posted: Wednesday, March 13, 2019 - 03:09 AM UTC
Thanks Angel for posting. I was wondering how the parts look like, but even more, like you mentioned, measurement and position on the chassis to get the super structure attached.

Kind regards,

Robert Jan, ready for some good sleep
165thspc
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Posted: Wednesday, March 13, 2019 - 03:12 AM UTC
The Panzer Concepts offering goes things one better in that they also include the L-o-n-g case that holds the range finder tube. AND the Bronco tube will actually fit INSIDE the case!



165thspc
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Posted: Wednesday, March 13, 2019 - 03:24 AM UTC
One thing the Bronco kit is rather unclear about: Based on the instruction sheet you might be tempted to glue the predictor computer box permanently to the round screen wire base. You might make the assumption the entire floor+computer assembly rotates. In reality the round screen wire base is fixed and the entire computer assembly rotates manually.



The outboard "spotters" using the shorter optics mounted out on the rangefinder tube, manually rotate the entire assembly while tracking the target. The only operator that moves with the assembly is the "ranging operator" (Bereichsbediener) in the center. You will see that he has a small step (brass etch in the kit) that he rides on while visually operating the split image rangefinder, controlling the distancing mechanism.

p.s. I mounted the range operator step too high on the body of the computer on my model. In reality it should be down within a scale inch of the round tread plate deck.
ayovtshev
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Posted: Wednesday, March 13, 2019 - 03:27 AM UTC
Robert,

Some measurements(in mm.):



HTH
SpeedyJ
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Posted: Wednesday, March 13, 2019 - 03:28 AM UTC
Moldings from Panzer Concepts are Superb. Never seen that quality before. I like the subjects very much he's working on.
SpeedyJ
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Posted: Wednesday, March 13, 2019 - 03:32 AM UTC
Thanks Angel!
165thspc
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Posted: Wednesday, March 13, 2019 - 03:39 AM UTC
Short (wide view) optics:
(Wide view, by that I mean wide when compared to the optics in the rangefinder tube, which is built to be very, very long, super telephoto.)



The spotters keep the target centered in their wide field viewfinders so the range operator can concentrate on getting an accurate range (distance to target) reading.
165thspc
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Posted: Wednesday, March 13, 2019 - 03:45 AM UTC
I added your typical tank turret style tabs to the computer base to allow it to rotate independently.






For whatever reason Bronco has chosen to provide a captive pivot to allow the screen wire platforn to turn on the tri-form base but has provided no such captive mechanism to allow the computer console to turn above the mesh platform, save for a rather large center pin where the console is held on to this pin only by balance and gravity.

PLEASE NOTE: In reality the round deck is fixed to the tri-form base and the entire computer and rangefinder tube assembly rotates above it.
165thspc
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Posted: Wednesday, March 13, 2019 - 04:24 AM UTC

Quoted Text

Moldings from Panzer Concepts are Superb. Never seen that quality before. I like the subjects very much he's working on.



That has certainly been my experience with Panzer Concepts!
165thspc
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Posted: Wednesday, March 13, 2019 - 05:36 AM UTC
Doin' the Dance: CONTACT RIGHT!



The range controller gets to ride:
(He does have a crank where he can rotate the computer himself if necessary.)
165thspc
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Posted: Wednesday, March 13, 2019 - 07:00 AM UTC
An additional detail, I only recently discovered, that needs to be added to the Bronco Telemeter:

There is a panel on the lower left rear corner of the computer that contains (I believe) many small calibration control knobs. These should be covered by a metal framed glass front door.

On the Bronco kit the knobs are all there but no cover door.

This should be easy enough to frame up with some small square Evergreen stock and then either use Future to represent the glass or cut a small rectangle of acetate.

panamadan
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Posted: Wednesday, March 13, 2019 - 08:00 AM UTC
An interesting topic!
Dan
165thspc
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Posted: Wednesday, March 13, 2019 - 01:36 PM UTC
One more photo of the Krupp L3H143 based Kfz.74:

165thspc
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Posted: Thursday, March 14, 2019 - 12:39 AM UTC
Link to Panzer Concepts website:

http://www.panzerconcepts.com/index.html