How deep do skis sink?

[DylanS]

I work for a company that manufacturers USVs with multibeams/side scans. If you were closer I definitely would come help out. We have donated a lot of our boats to universities. I would check in with nearby schools and see if they have any type of program along those lines that could help out. Good luck

what exact model do I need to rent to track this thing down? Any suggestions?

 

[Evil]

A nice towfish sidescan/T50 multibeam will definitely give you the most coverage for each pass.

 

[ngerk]

Man I feel you. Sunk my superchicken that I did an 1100 swap on at the end of July. 30’ where it went down, no visibility, muddy bottom. Tried to get a company out there that day. He said he could be out first thing in the morning. They bring up hundreds of boats each year in way deeper lakes. Couldn’t find it on scanners, neither could the diver. He even had someone in the area come out in his bass boat to scan with a way higher dollar 360 scanner. Either floated out somewhere or someone putting along in their pontoon found it on the scanner. Someone on Facebook claims to have seen someone with it the next day but who knows. Still got a little hope I’ll see it again. Hope you find yours. Mine is not so much the money like yours is. It’s the fact I can’t replicate the build for as cheap as I did especially with the cost of SCs now.

 

[te4250]

When I went to school there was a autonomous underwater vehicle project team, I’m pretty sure their competition was finding stuff underwater. I can see if I can get in contact with anyone on the current team but it might be a bit far for them to travel to do some “testing” (Ithaca, NY). Looks like penn state had a team in 2015 I didn’t see anything more recent but maybe someone on the current team will know if there’s an active team closer.

 

[Vumad]

That's not how submarines work. I served on them, you get neutrally buoyant by either bringing water on or pumping it overboard. Scuba divers do the same thing (I used to be an instructor), you adjust the air in your BC to get neutral for whatever depth you're at.

Supports the jet skis travel like fish idea.

Many people with X2 remove the hood foam to fit larger engines. The air in the engine compartment gives the illusion of enough buoyancy to not sink. X2 can not float without hood foam, but they do, because of the air left in the engine compartment. They have just enough foam to slow the process to slower than the bilge pumps.

Any ski with that relies on the air in the engine compartment to not sink, but has enough foam to not go down rapidly, will work in the way SJ describes subs working. They can slowly decent as the air escapes. The rate of the decent depends on the rate of the air escaping.

So the real question is not "how far to skis sink" because that answer is most definitely "to the bottom".

The question is "at what rate do skis sink" so that some amount of estimation can be made as to how far the ski will travel during the sinking process. For an X2 with no hood foam, the answer could be hours. Skis with no foam at all can be almost immediately, and skis with proper foam could be days.

So yes, skis do kind of travel laterally like fish riding the current, except their depth only increases over time.

 

[DylanS]

Man I feel you. Sunk my superchicken that I did an 1100 swap on at the end of July. 30’ where it went down, no visibility, muddy bottom. Tried to get a company out there that day. He said he could be out first thing in the morning. They bring up hundreds of boats each year in way deeper lakes. Couldn’t find it on scanners, neither could the diver. He even had someone in the area come out in his bass boat to scan with a way higher dollar 360 scanner. Either floated out somewhere or someone putting along in their pontoon found it on the scanner. Someone on Facebook claims to have seen someone with it the next day but who knows. Still got a little hope I’ll see it again. Hope you find yours. Mine is not so much the money like yours is. It’s the fact I can’t replicate the build for as cheap as I did especially with the cost of SCs now.

Sorry to hear that man, hopefully yours shows up. Unfortunately I’m beginning to think someone might have stole mine and if I’m lucky I’ll get a bare hull. Best of luck to you man, I know how you feel.

 

[bird]

We lost an X2 at the Sortie in 2015. Lake Pepin Minnesota. It was found a few weeks later by some fishermen, got stuck in their nets. Guy never reported it lost. I can only imagine the DNR fined him big time. They found it via social media, the fishermen posted about a water scooter in his nets lol!

 

[DylanS]

this is the best I’ve got so far, and the location would make somewhat sense. Anyone who has experience with side scan mind telling me if the black object furthest to the right could possibly be a shadow cast by the sonar? It has the exact shape and length of ski from the side. But I’m no expert.

 

[Evil]

That object to the right of the cross hair is something that's tall. Like a ski nosed down/up, can't tell exactly what the object is. But the fact that its in the nadir gap means it's "floating" or just a tall object.

 

[Evil]

If possible, run lines on both sides of it to get a more detailed view.

 

[DylanS]

That object to the right of the cross hair is something that's tall. Like a ski nosed down/up, can't tell exactly what the object is. But the fact that its in the nadir gap means it's "floating" or just a tall object.

Do you think it’s worth a check? I assumed it was the ski on its side but now that you say that I’m not sure. It says it’s 7 foot there and the coords make sense.

 

[Evil]

If you have the time, I would check it out. Like I said, it's hard to tell, but it looks like something that's at like a 45 degree that causing the shadow behind it but also the reason its in the nadir gap.

 

[DylanS]

If you have the time, I would check it out. Like I said, it's hard to tell, but it looks like something that's at like a 45 degree that causing the shadow behind it but also the reason its in the nadir gap.

If it helps it’s only like 6 foot off shore when I punch the coordinates in.. another guy sent me over a mark too at 55 foot but I would like to get a good image before my diver has to go that deep.

 

[Evil]

Oh yeah I wouldn't send a diver yet. I would try to get all four sides of the object first. That would really help define what type of object or if its just a fish. Got big fish there?

 

[DylanS]

Oh yeah I wouldn't send a diver yet. I would try to get all four sides of the object first. That would really help define what type of object or if its just a fish. Got big fish there?

They say there are 4 foot cat and huge Stergeon lol but hopefully none as big as a jetski

 

[Evil]

Oh hmm, that's a tough one. If you look to the left of the crosshair, those are fish. I would definitely get more data before sending a diver down.

 

[DylanS]

Oh hmm, that's a tough one. If you look to the left of the crosshair, those are fish. I would definitely get more data before sending a diver down.

Oh man, i would say they are striper but they usually run in schools around this time. It’s only 7 foot there so no big deal, the problem is getting someone out to scan for me. Maybe I will just go for a swim lol

 

[Storbeck]

7 feet of water go swim!

 

[Storbeck]

Is that what fish finders look like nowdays? I'm impressed.

 

[DylanS]

Is that what fish finders look like nowdays? I'm impressed.

That is a cheaper side scan finder from what I know