underwater camera boat finder

[properchopper]

Sorry Tony I totally neglected to take into account that variable. Are you going to also employ a fanewton valve to regulate and redirect the flow of ions?

Mark

Mark, only if I can locate the later, left-hand thread version. If not, the only alternative is to adapt a sub-galatic parabolic sphincter servo.

[marko500]

Don't forget to use a left-handed wrench with the left-hand thread version.

I worked with a guy once who couldn't get a screw to start. We had him convinced he was using a left-handed screwdriver and he should have been using a right-handed one on a right handed screw. Should have seen him asking everyone in the shop if they had a right-handed screwdriver he could borrow. haha.


Mark

[properchopper]

Don't forget to use a left-handed wrench with the left-hand thread version.

I worked with a guy once who couldn't get a screw to start. We had him convinced he was using a left-handed screwdriver and he should have been using a right-handed one on a right handed screw. Should have seen him asking everyone in the shop if they had a right-handed screwdriver he could borrow. haha.


Mark

A buddy of mine was working on his motorcycle. He asked to borrow an adjustable "monkey" wrench. I asked him what size bolt he needed to tighten ; He said he was sure it was 5/8". I told him mine wouldn't work 'cause it was metric.

[m4a1usr]

Got my mitts on mine today. Have to say it does look like typical Chi stuff. Not junk, just bare bones in quality and materials. But having said that, it has lots of potential. I still have not finalized on the propulsion or sub frame assy. Lots to consider. Thankfully with all the cheap brushed motors and esc out there its not going to be expensive. The best part is the video camera has more then enough resolution to bring in a good 2 to 3 meters worth of background, yet can remain focused on something as small as a box of cigarettes up close. It also has infared led's for low light conditions that are surprisingly bright. So dark murky water shouldnt be a problem. You will just need to be close to see what ever it is you seek.

I'm pretty sure I'm going to use some ducted fan assy and 2 or 3 motors. With an RPM range down around 50 to 200. For a change I'm not interested in speed! Wow. That was tough to utter. More to follow. Luckily I have a nice tall (30ft) water column to play with at work. Its fresh water and crystal clear to boot. I'll get some pics up soon once I decide on the platform.

John

[sundog]

Cornwall has some kort nozzles that would do well as ducted fan propulsion, or better yet, you might consider bow thrusters. http://www.cornwallmodelboats.co.uk/...3aR1155#aR1155 Looking forward to your build.

[rc2266]

Mark, only if I can locate the later, left-hand thread version. If not, the only alternative is to adapt a sub-galatic parabolic sphincter servo.

He he... Tony said sphincter.. he he

[m4a1usr]

Cornwall has some kort nozzles that would do well as ducted fan propulsion, or better yet, you might consider bow thrusters. http://www.cornwallmodelboats.co.uk/...3aR1155#aR1155 Looking forward to your build.

Bow Thrusters are an excellent idea. A couple 14mm Graupner pumps would do alright. Thanks for the idea!

John

[properchopper]

John,

Glad you're developing something that just might benefit all of us. Here's a thought : If you Google "Radio Controlled Submarine", you'll find some stuff (some toys, some pricey) that might give you some ideas - just food for thought.

[murphy3428]

Here is a cool vid of an rc sub with underwater cam I dont know how deep it can go but it is definitly cool, make sure to watch the 2nd half of vid that is when the cam is mounted on the sub. http://www.youtube.com/watch?v=US5xz...eature=related

[m4a1usr]

I'm shooting for a copy of a tethered system I already play with. Just not so complex and on the cheap too! Since this is the internet I cant provide any details, the job you know. But here is a "public" domain photo of what I will emulate. No not the ship! Look at the rear of the ship. Thats called the oh one level. Located there you can see 2 tethered recovery systems. Ones called CURV the other is called SWRD. Again public knowledge so I cant get in any trouble. My goal is to use the CURV in its most basic form. Hopefully the link is clear enough to view my descriptions.

John

http://www.shipspotting.com/gallery/...php?lid=875451

[drwayne]

28082010143.jpg


check this out

http://forums.offshoreelectrics.com/...896#post222896


cool winter hobby build last year

Tx includes lcd screen for viewing of sonar below boat via wlan remote feed.
Range up to 300m

BTW.
I was R&D tech for RAN DSRV project 2003-05.
DeepSeaRecoveryVehicle.. RC S&R to 800M
Now collects drink cans from 500M under... as training

Doc W