A new single screw 3.5” SD?

[Kazzer]

I really Like that Idea! :)
Come on, Mike, it will only take a few minutes and a yard-stick! ;)
In fact, David Should have all that Info on file, in his Super-computer, already? :D

Hey! Ho! Already done it last week! We're waiting for our very slow, pitiful web page master (are you watching this Lance?) to get the thing posted.

In the meantime, here is a pdf file of the page.
www.moonrakers.com/Sub-driverwebpage.pdf

[toppack]

Mike, on your web page could you please put dimensions up of what the current lengths of the SDs various compartments are?

I really Like that Idea! :)
Come on, Mike, it will only take a few minutes and a yard-stick! ;)
In fact, David Should have all that Info on file, in his Super-computer, already? :D

[Slats]

Well I certainly will buy one.
I need to know more about the real estate and functioning requirements of the torpedo system first but count me in for a new 3.5" SD later in the year.
(The 10 degree angle and firing equipment on the Permit tubes might come across the SD space -so a smaller diameter battery compartment might be required).

I think others who want to run the new tech batteries etc will want one want too. As stated on an early post larger submarines can benefit from Lipo technology too. i'd like to still use NiMH but if the space (dry section is there) I can always switch to Lipos and add ballast later.

best
John

[He Who Shall Not Be Named]

Sure, I can do this. And I would make the forward ballast tank bulkhead in a variety of types, each type accommodating a different diameter forward (battery) compartment.

It would entail a re-design of the after ballast bulkhead (incorporation of the conduit tube foundation).

Doable? Sure. Enough buyers out there to justify the work? You tell me.

Good stuff, and food for thought, John.

Anyone else want to pile on with suggested 'improvements' to our product line here in, CaswellWorld?

David,

[Slats]

Hi guys (and particularly David).

Mike suggested I post this.

One thing I happen to love about the D&E 3.5” SD is the 3:1 offset gear box. The reason I like this is that in the fairly larger diameter submarines (like a USN nuke) in 1/72 scale, you can fit the vast majority of the SD below the WL. In doing so I find the standard ballast tank a tad big, but in its current form, this is no problem as you can lop off a little ballast tank or using the end cap at the forward end – even add if you need to, a little foam.

I find that the new emergence of better battery technology, higher capacity LiPos and NimHs and lower weight, that there is a need for a forward battery dry compartment. Yes you can still run your SLAs wet instead of these newer tech batteries, and you can do what I have done on HMS Trenchant and employ your own dry space (and Mike indeed sells this), I am wanting to know however, if we could get a 3.5” SD single screw that comes with this feature installed i.e. Rear compartment / ballast tank / forward battery compartment – and with a conduit going through the ballast tank linking the compartments?

I would suggest a basic size of the ballast tank of around 5.5 – 6 inches, forward compartment of around the size to accommodate a 7.2 v NimH stick battery – like used in RC cars, and the rear compartment around the standard current size of this compartment on the 3.5” SD.

David and Mike, would this be possible?

Also Mike, on your web page could you please put dimensions up of what the current lengths of the SDs various compartments are?

Best

John

HMS Trenchant -3.5" single screw SD with 3" forward battery compartment. What I am suggesting is a 3.5" SD that has the battery compartment attached to the SD and connects to the rear WT compartment via ballast tank conduit.