heres my second build of the u2540 some of the photos show some mods i have made 1) is a brass plate with th antenna wire under the sail the periscope screws into this rather than have the whip anteena at the rear of the sub, 2) is a waterproof mylar speaker under the sail for the diesel sound generator ( thanks to another post on rcu) and finally the detailing of the weld lines going very well.

more pictures of the build

Looking good! Are you using the stock diving system or upgrading to make it a static diver?

how big is it? wut scale?

Could you go into more detail about how you installed the waterproof speaker, etc please? Tried to search for the link here but couldn't find it. Sub is looking great! Much cleaner then mine is. But I am about 1 month (and some descent painting weather) away from finishing. Just have to wait until Spring to get her out of dry dock!

1/40 scale nearly 2 metres long with a 6 inch beam

stock diving with looking to upgrade in the future, i have already planned and made partly made the tray for a engel conversion which is one of my other threads

i used a waterproof mylar speaker available from blue box models and sealed put it in a plastic box for protection then mounted this under the sail... i then run the wires throught main tube near the front dive plains take great care as to where you do this

here is the first water test which went really well a small leak from the prop shaft, this has been quickly sorted out, the real test is next week when we throw her in the lake!!!!

Very nice! Looking forward to seeing some operational pics.

yes ill be taking some good video footage and uploading thanks!!!

nice sub where did you cut to get to the eletronics?

the sub uses a tube the radio tray slides inand a bolt in the front then tightens the rear cap with an oring on it against the tube making it water tight, the tube is also presurised so that if any air does escape water wont get in....