This WTC(water tight cylinder)is for C7615/U31 TYPE 212A R/C submarine.It can also fit in similar size ,single shaft submarine hull.This WTC equiped with 2 Parallel waterpump ballast system,easy to fast dive and float,easy to pitch control,The WTC has large space ,fit with 4 2-pin T-sockets and 32-pin sockets for function update.

All parts made by inject ABS plastic/nylon,easy to assemble.

All metal parts such as running set made by is CNC Precision sizing.

Kit include all essential electric parts such as waterpump&soleniod.

Kit include all rubber seal parts.

Kit include illustrated step by step instruction.

Kit include CD-ROM.

Free toolspack for assemble.

Marine waterproof ESC for Prop

Failsafe can protect you boat without signal can automatism float.when lost signal,pump will work Automaticly,ballast water will pump to outside.

Pitch control keep keel angle horizontal in the water.

Depth control keep boat depth unchange,you can keel you boat in periscope deep whole day.

Underwater camera is a real-time TV transmitter send video-signal to receiver inland such as DV or Otherplayer. with underwater spotlight,that is a partner of underwater camera to illuminate dark floor.Please notice TV signal can't through water so this system use a wire and a float-antenna send signal to surface.

TorpedoCAB provide ability to launch torpedoes.

Torpedo powered micro-motor launched by torpedocab.

Mast elevation system control the periscope and radar elevation.

Bollard elevation system control the bollards elevation.

X Rudder IC Mixer control 4 X rudder working together,if you use a channel-mix function RC,this is not essential.

Light equipment show navigate and cabin lights.

LCD TV supply high-resolution alive video from underwater camera.