BT500 subsea trenching machine - photo and video

**Altair** · Apr 28, 2019, 03:13 PM

BT500 tracked subsea trenching machine for underwater cables. It can operate at depths of up to 1,000 m (3,281 ft).

Previously:

Underwater chainsaw - video
Submarine cable cross-section - photo
Undersea cable armoring GIF

**MeJasonT** · Apr 30, 2019, 05:14 AM

I worked with its predecessor LBT1 installing offshore wind turbine cabling, nice vehicle to operate - loved it.
SMD build some really nice gear.

Like the video simulation of the ROV flying behind it, In reality it would be flying in a cloud of crap coming up from the trencher.

**Big Sexy** · Feb 27, 2021, 08:39 PM

I’m confused why you would want or need to bury a cable on the sea floor. And do you call the 1-800-beforeyoudig number for someone to come out and mark any existing cables?

**jdurand** · Feb 28, 2021, 05:03 PM

Originally Posted by Big Sexy

I’m confused why you would want or need to bury a cable on the sea floor. And do you call the 1-800-beforeyoudig number for someone to come out and mark any existing cables?

Might keep anchors from pulling it up.