Firstly many thanks for all your kind comments - I hope to add a couple more pics once further progress has been made.
One of the challenges with these SWM subs is that they are powered up by attaching the battery cables to the circuitry - there is no on/off switch. This means that you have first to switch on your Tx; connect the battery; assemble all 5 parts of the wtc; install and fix the wtc into the bottom hull; connect the propshaft and the rudder and plane linkages; gas-up; attach the hull top and test everything is functioning properly. Then you can launch! This takes time and meanwhile the batteries are discharging.
Late last night I decided to order a magnetic on/off switch from Engel and install this inside the wtc. This will mean that the whole sub can be assembled at home and on arrival pondside all I will need to do is gas-up, swipe a magnet over the switch, attach the hull top and off I go! The link to this switch is:
http://www.engel-modellbau.de/catalo...5203cbea2aff57
I suspect this switch might prove of interest to people other than submariners too.
I would like to add that this part was ordered late last night and by 08.30am this morning Engel had e-mailed me to say that it had already left their warehouse and was on its way to me by airmail! Absolutely superb service - as I find is the case with the other sub specialists Pandan/Subtech and Sheerline. We submariners are in my opinion very well cared for by our specialist suppliers.
Andrew