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>> Home > Forum > Boat Specific Chit Chat! > bulkheads
bulkheads
(240 views)
Author Message
green72west
(Petty Officer)





Forum Posts: 5
15th Sep 2018 14:12  
>> Permalink
mdlbt.com/46209

I have hopefully posted photos of stern/bow shape of bulkheads
+ side view of the hull. there are 20 frames in the hull. how can I
install x2 graupner schottel [2335] at the bow. I will have to leave
out the keel under hull. thankyou Green. the plans are 1/50th
scale.


Attached Files - Click To View Large


R.SHAW
Dampfgerd
(Sub-Lieutenant)





Forum Posts: 24
15th Sep 2018 21:52  
>> Permalink
mdlbt.com/46225

Bauer- Voith-Schneider-Propeller
https://www.bauer-modelle.com/Voith-Schneider-Propeller-VSP-...


Attached Files - Click To View Large

reilly4
(Admiral)





Forum Posts: 36
16th Sep 2018 03:27  
>> Permalink
mdlbt.com/46230

Why do you need Schottel drives? The Voith Schneider drives in that configuration can move the boat in any direction? Schottel drives will require fairly big penetrations through the hull, and apart from the installation complications, should (in my opinion) be unnecessary.
This is a link to a fairly comprehensive brochure with photos of the real thing that will help in understanding the concept etc. http://www.gemimanevrasi.com/Tug_Boat_Technology/Voith%20Wat...

RNinMunich
(Fleet Admiral!)





Forum Posts: 2229
16th Sep 2018 12:07  
>> Permalink
mdlbt.com/46240

Hi Haig, seems to be a common mistake to get Schottel Drives (Z-Drives) and Voith - Schneider confused with one another!
First two pics show a twin Voith propeller on a tug hull (as on the plan above) and the operating principle.
3rd pic is cross section of the Z-Drive as produced by the Schottel company. It is a 360° rotating 'pod'.
Newer versions have electric motors built into the pod and don't need the mechanical Z transmission from inside the hull.
With such pods under bow and stern even bow and stern side thrusters are redundant 😊 4th pic is the Graupner version, Mk II.
https://www.graupner.com/Schottel-Drive-II-new-version-/2335...
Cheers, Doug 😎


Attached Files - Click To View Large


Young at heart - slightly older in other places 😉 Cheers Doug
Grant me the Serenity to accept things I can't change,
the Courage to change things that I can, and
the Wisdom to know the difference!
Dampfgerd
(Sub-Lieutenant)





Forum Posts: 24
16th Sep 2018 12:34  
>> Permalink
mdlbt.com/46245

Hi Doug
Your plan show a Voith-Schneider-Propeller


Attached Files - Click To View Large

RNinMunich
(Fleet Admiral!)





Forum Posts: 2229
16th Sep 2018 12:38  
>> Permalink
mdlbt.com/46246

Hi Gerd, It's not my plan!
The plan is from 'green72west' who started this thread and seems to be confusing Schottel and Voith-Schneider. Either that or he wants to use two Z-Drives instead of the Voith drives. His intention is not clear. Either way he doesn't need to cut chunks out of the keel, that's nuts😲
Cheers, Doug 😎


Young at heart - slightly older in other places 😉 Cheers Doug
Grant me the Serenity to accept things I can't change,
the Courage to change things that I can, and
the Wisdom to know the difference!
reilly4
(Admiral)





Forum Posts: 36
16th Sep 2018 15:27  
>> Permalink
mdlbt.com/46252

The plan at the top of the thread shows a specific Water Tractor tug plan specifically designed for the VS drives, including the large straight keel at the stern. I suggest Green72West should either use VS drives or use another type of hull for Schottel drives.

Kipper
(Lieutenant)





Forum Posts: 26
18th Sep 2018 11:50  
>> Permalink
mdlbt.com/46298

The first pic that Green has posted, does show a 'Schottel' drive unit at the left of the plan, no wonder he is confused.