1kg of thrust!

Here are some pictures of the thruster in the tank in the reverse direction, now to be known as the forward direction ;)

First a solid 1.9kg of thrust ......

And then a fleeting 2kg!

So taking into acount the ratio of the lengths from the pivot point to the thruster and the fishing scale that's 1kg of thrust, or 2.2 lbs in old money, in re-circulating water!