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Originally Posted by ajg141 I'm really impressed with all that scribing Ramesh. It has certainly improved the rather bland looks of the earlier version. And I can see the differences with the periscopes too. Do they still have that rubber band drive? If so watch it as the thing slips and the 2 shafts start rotating at different rates causing the drive rods to bend! I still wonder why the pressure hull opening doesn't extend further back to give easier access to the drive motors. I'm blowed if I can see how to get them out with the current arrangement if something should go wrong back there. And just how do you locate the rear ballast tank bracket onto the mounting plate if you fibreglass in the pressure hull before you fit it?
I'm looking forward to seeing how you overcome the challenges!
I'll pm you about the bow dive plane problems separately.
Andrew |
The periscopes come with a new toothed belt that won't slip. I modified my old scope mechanism to chain drive (using the Robbe Chain drive kit), very little friction, nice positive action. I made new longer metal mounting plates for the front of the piston tanks as I found I couldn't get a screw driver to the screw with the original. The screw that holds the rear end of the piston tank should be mounted on the PVC plate before you install the PVC plates in the pressure hull. You should be then able to slide the rear piston tank bracket onto the screw. Obviously you wouldn't be able to tighten the screw further but I found that the piston tanks still held firm. You should be able to get the motors out after removing all the other compnents first. I'll be addressing these issues in my new build
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