So I've been seeing reports of Fifish V6 owners saying their propeller blades easily getting worn down by gravel from the bottom of lakes and oceans, also by the weeds that they travel though, so be careful. The QYSEA Fifish V6 is a personal favorite of mine, even though I bought the Geneinno Titan, I was very close to buying the Fifish V6, I still might purchase one in the sometime future do to it's amazing maneuverable capabilities. The Fifish V6 being the first omnidirectional undrwater drone, being able to rotate 360 degrees, do lateral movements, and tilt at a 90 degree angle is pretty amazing. But all that really doesn't mean much unless the drone holds up right?
Here's two reports, I guess you could say the first one is kind of understandable considering the owner said he used the FifishV6 everyday. But another owner said he worn down his propeller blades just within two dives!!! That's totally unacceptable, I've seen what Stan Adam/Stans Legacy said bout his Gladius Mini, despite having 200+ dives his propeller blades are perfectly intact. I think he said at one point he had a motor replaced, but so far it's been a pretty resilient underwater drone.
QYSEA is starting to respond, which is good news, they plan on coming out with these thruster protectors to protect the propeller blades, but I wonder if these covers are going to mess with the maneuverability of the Fifish V6. And will these covers protect you from small gravel on the bottom? Probably not, so I'd still avoid navigating close to the bottom for the time being if you own a Fifish V6. I personally would like to see QYSEA just upgrade the quality of material they use for their propeller blades. I've seen owners of the Gladius Mini say its propeller blades slice right through the weeds.
So the one owner who started the post on the Fifish V6 Group said it cost him $25 for the part which isn't bad, but another $25 for shipping, which to me is kind of high. $25 to ship a small plastic propeller? Maybe it's coming from China, that's why, but either way, $50 is a hefty price to pay to get plastic replacement propeller for the Fifish V6 when they're just made out of cheap plastic. It would be cool for someone to release some designs for 3D printing!
So just be careful out there navigating your underwater drones, you just never know if some monofilament could be laying around on the surface or even on the bottom attached to a lure. Fluorocarbon is even clearer than monofilament, which is a little scarier, it's known for it's invisibility for fishing.
Anyways, if I was the owner of the QYSEA company, I'd say the right thing to do is replace these propeller blades for free and think about using stronger material. I think fishing line on the other hand is more of the pilot's responsibility.
Just remember, I'm not out to get QYSEA or anything, this is just to help notify owners about problems with the Fifish V6, along with pushing the company to improve their underwater drone. This is how we push forward with ROV technology, communication! This is QYSEA's 2nd generation drone, so far I'd say they're doing a stand-up job. I think a lot of the underwater drone companies are, I just hope many don't go under with a recession looming and economies teetering due to trade wars.
I think the QYSEA Fifish V6 is one of the most innovative underwater drones on the market!