What if.... hit an oyster bar at 20mph

JackMobley

Recruit
Joined
Feb 20, 2007
Messages
1
I'm writing a story and my character is driving a 25' center console with 200 hp Yamaha. In old days there was a pin that would snap and let engine pop out of water. With power trim today what would be likely outcome. would trim be broke? damage to the lower unit? also how would stainless steel vs. aluminum prop fair? If your info is helpful I wil credit you unless you say not to. Thanks
 

zuke1

Petty Officer 2nd Class
Joined
Jul 11, 2006
Messages
153
Re: What if.... hit an oyster bar at 20mph

in my experiance... when i hit a land mass with my outboard with power trim... the motor lifted itself right up, the prop though, being aluminum absorbed much of the damage, many large grooves and such... had it had been stainless steel there is a good chance that more of the drive train would have been damaged, bent drive shaft etc...

so the diff between the two props, is one gives, and one doesnt. and i believe most outboard motors have the set up to where the motor automatically gives in and tilts up..

just go look in the "bad luck with boating" post thats going strong in the stupid human tricks portion, and you can see some boats that have hit land, and see what the motor did...

later
zuke
 

deejaycee_2000

Captain
Joined
Mar 28, 2006
Messages
3,447
Re: What if.... hit an oyster bar at 20mph

At 20mph the damage won't be that bad, at 50mph you will probably rip the lower unit off ...... at 20 mph it won't break the the trim, rather just get stuck with quite a force on the oyster bar with quite a bit of skeg damage ...... if it is a aluminium prop, you are likely to rip one of the blades off, or just major damage ...... with stainless steel, you might bend a blade or 2 .......
 

troypolla

Petty Officer 1st Class
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Jul 16, 2006
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218
Re: What if.... hit an oyster bar at 20mph

All I can say is I would not want to pay for the damage.
 

salty87

Commander
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Aug 12, 2003
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Re: What if.... hit an oyster bar at 20mph

i hope it's after happy hour...or do you mean oyster bed?
 

kenmyfam

Supreme Mariner
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Aug 10, 2006
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Re: What if.... hit an oyster bar at 20mph

salty87 said:
i hope it's after happy hour...or do you mean oyster bed?
I am all for going to the "bar" myself but you can keep the oysters !!!!
 

tashasdaddy

Honorary Moderator Emeritus
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Nov 11, 2005
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51,019
Re: What if.... hit an oyster bar at 20mph

it's a sudden stop, probably a bloody nose, maybe a broken rib hitting the steering wheel. blonde girl friend, in a yellow sting bikini, sitting on the bow, half drunk, flies over the bow, unhurt, pulls up on the bow rail, and says " what did you do that for?"
 

noelm

Senior Chief Petty Officer
Joined
Mar 8, 2005
Messages
761
Re: What if.... hit an oyster bar at 20mph

hhhmmm I would have thought the girl in the yellow string Bikini would have lost her top for sure, otherwise why would he have hit the oyster bar/bed hhhmm might be a line there too.
 

kenmyfam

Supreme Mariner
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Aug 10, 2006
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Re: What if.... hit an oyster bar at 20mph

Are you all certain that it was a "yellow" bikini ??
 

reelfishin

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Mar 19, 2007
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3,050
Re: What if.... hit an oyster bar at 20mph

I watched a guy a back in the early 90's try to ski across a visable sandbar at low tide and come to a complete stop right after, his three passengers all went over the bow, he ended up on the floor, and the outboard nearly flipped into the boat. The result was a badly damaged transom, some deep gouges in the hull along the bottom, one bent and one missing blade on his aluminum prop, broken skeg, some leaking lower unit oil, a smashed cuddy cabin door, some bad bruises and three pissed off female passengers who survived with only a few scrapes and bruises most likely from them crashing over and through the bow rail. They all said the driver was drinking all day and was driving crazy the whole afternoon.
I felt sorry for the three that went flying, one I believe was his girlfriend, and the others were just along for the ride. It was a case of a first time boater with no common sense, he even said he saw the sand bar and had watched others hit it in the past. He tryed to cross it at low tide anyhow.

The boat was brand new at the time, and was about a 21' cuddy cabin with a Force 150 ouboard. It was scrap after that incident. The transom had a crack all the way across just even with the bottom of the motor bracket, the ends were split open, and the motor bracket was pushed into and partway through the top edge. The motor bracket did break, but only from it slamming all the way up against it's stops, it was hanging by only one side of the bracket when it came to rest. I saw him heading for the samd bar, did a double take and heard the engine slam and then scream at the redline for a minute and the three women screaming as they went over the rail. It's a good thing that it did kill the engine, because all three were directly in the path of the boat when they landed. If the boat hadn't of stopped, they would have most likely met the prop.
They're hitting the bow rail also bent and pulled the rail partially out of the glass hull, so one or more of them surely felt that, if not then the next few days. I think the one that hit the rail first was his girlfriend. Neither her nor the driver stuck around once they hit the docks, they were content with leaving the boat to sink and leaving the other two behind. They wandered away screaming at each other, neither of them every saying a word to me. The driver was actually hesistant to accept help, but his passengers pretty much insisted they were either going to leave him by himself if he would not let me tow them back. All three passengers rode back in my boat. It's also a good thing I had lots of rope, he had none, he apparently left it all on the dock when he untied.

I ended up towing him back to his dock and got to inspect the damage close up, he didn't seem to care much, he was too busy screaming at his girlfriend for being upset. The boat was borrowed. I ended up helping two of the women get it up on a trailer, if not I suppose it would have either sunk or at least taken on water from the cracks at the corners of the transom.
I don't suppose that boat ever saw the water again, unless someone was real intent on saving it. I suppose the engine and transom damage would have been enough to total it or deem it unseaworthy if it were insured.
Also from what I saw, it was just pure luck that the engine didn't flip up into the boat, I could see where it had tried, it would have either broke completely free and hung on the controls, or flipped over the bracket and into the boat. It definitely tried to go over. I think if he had hit a bit harder we would have known.
 

jimlad

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Feb 4, 2007
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569
Re: What if.... hit an oyster bar at 20mph

what a idiot :^
 

gonefishie

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Re: What if.... hit an oyster bar at 20mph

what reelfishin said was definetely dead on what could happen, worst case scenario though. I have seen a boat ran over a submerged hump, the top of it probably a foot deep. He has an inboard, his aluminum prop was all chewed up, only about an 1/8 of each blade attached to the hub. The skeg was completely FUBAR. He was going at about 30-35mph, the boat came to a dead stop and it appeared that the driver had quite a bit of unwanted contact with the steering wheel.
 

reelfishin

Captain
Joined
Mar 19, 2007
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3,050
Re: What if.... hit an oyster bar at 20mph

jimlad said:
what a idiot :^

Yep, and the problem is there's a lot of them out there just like him. I can't count how many dumb situations I see people get in back in the creeks and rivers. Full speed, low tide and no common sense, with a little alcohol added to the mix will do it every time.

The worst two accidents I saw were on a lake, both involved boats hitting docks at high speed.
One case was a kid in a high powered speed boat, drunk, in daddy's boat, after dark out for a joy ride showing off for some girl he picked up. I guess he forgot that the lake ended eventually, and that a 28'+ speed boat can't make a U turn with 20 feet of reacction time. He came up on the marina, which was empty for all but a few boats up near shore, and tryed to cut close or avoid the dock formation at well over 50 mph. He hit the first finger dock, slid across it, then skipped into the second and third one sideways, the first impact removed the left drive and prop, but the second prop proceded to 'walk' the boat down the next two docks till it crashed across the 5" steel pilings. That removed lots of fiberglass, the boat came to rest still running with his only passenger thrown ashore about 90' down the bank, luckily for her in some soft black mud. His next reaction was classic, he continued to limp the badly damaged boat away, since it was dark and there were no patrol boats out it took till morning for them to follow the trail of fiberglass and debris to the boat house where it was docked. The passenger ran off refusing an ambulance. Both were found the next day.

On the same lake, another boat which was pulling a skier had swung wide to avoid a speeding boat, in turn came to close to a fixed dock, dragging the skier in the path of the oncoming boat which tangled in the ski rope, that boat proceeded to slde up sideways into another dock, dragging the skier along and onto the dock. The skier came in contact with the one still untangled prop as the boat passed over her. She lived, but I was told by the dock owner who was first to here aid that it looked bad, she pulled through, but I don't know the extent of her injuries. Both of those cases happened about 8 years ago.

Myself, I've never been involved in any boat crashes or even close calls, the worst I've had was a few really bad hailstorms and bad weather.

I've been lucky so far, but there's plenty of idiots out there, and you have to constantly keep watch for them. If not they may just find you first.
 

woodrat

Ensign
Joined
Jul 27, 2004
Messages
949
Re: What if.... hit an oyster bar at 20mph

I think the blonde girlfriend, travelling at 20 kts through the air and stopping suddenly in the oysters, would be more than "unhurt".
 

anthony115merc

Petty Officer 1st Class
Joined
Apr 4, 2007
Messages
279
Re: What if.... hit an oyster bar at 20mph

hahah a guy did that last weekend in a 38footer only faster and sank it fully no insurance cover over $200 000 damage
 
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