100mph Hulls?

[Chris Harris]

That video is hilarious!!!

Chris

[properchopper]

this one http://www.youtube.com/watch?v=GaQB_tgS7f0

Not mentioned : Instead of a speedomoter, the car is equipped with a calendar.

Reaffirms the saying : " Just say NO to drugs "

[Punisher 67]

70 - 80 MPH is a lot more realistic , still a goal with some challenges but is attainable . going from 66mph to 100mph will take over double the power to reach

[crabstick]

I have a 16 year old and I want to buy him a Porsche for his first car, which should I choose

this one http://www.youtube.com/watch?v=GaQB_tgS7f0

[04DarkShadowGT]

I have a 16 year old and I want to buy him a Porsche for his first car, which should I choose

[C-Mac]

Sorry Lads I have been busy with work and family, not hiding in a corner in the fetal sucking my thumb as one put it lol( have 6 kids that occupy most of my time). First off thanks to all of you with positive feedback. I may have set my goal to high. I may be new to boating but not new to RC so I know all about burnt motors, broken parts, crashed planes,cars, trucks etc etc etc. I have a boat that does 55mph ( EKOS ) and it took me a couple months of reading, asking questions and getting the right gear. I'm in no hurry and money wasn't an issue if it was my thread would have been " 100+mph boat hulls on a budget". I'll change my goal to an attainable 70-80 mph and look for a boat hull in that category. Once again thank you all for your time.

[Gary]

OOOps i wasent lokking at it as a "moving start' so to speak". I only see videos of boats sitting down the end of the lake and then starting. Also i have never paid attention to any markers out on the water. Got it!

[MarkF]

Gary, you will always go slower than your actuall top speed if your acelerating through the traps. You have to be going full speed before you enter the traps. Then you have to drive a strait line at top speed throught the traps. If your drive crooked through the traps then it will take longer to reach the other side so there for a slower time. This is what makes saws hard and fun at the same time.

Mark

[Flying Scotsman]

All official speed records for cars, boats etc. are done in this manner with the run done in both directions on a measured distance and the combined times result in the official speed.

Douggie

[Gary]

[QUOTE=Fluid;197757]Note that nowhere in my posts did I say that GPS speeds are not accurate. I have run dozens of SAW passes through timing lights with a GPS on board, and most of the time the GPS speed was within 1-2 mph. It always read high, which makes sense since it measures the highest speed over a short interval, while the boat may have been accelerating through the traps giving a lower average mph. The difference is that most of those who have a 80 or 100 mph GPS speed would never be able to set a SAW record with that setup.


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So Jay just so i understand, will a SAW run through the traps be faster if your at top speed soon into the run or just reaching top speed at the end of the run? Your not actually measuring speed you are measuring "time" to convert to speed. But also your boat could have hit 80 and then slowed to 75 at the end..........what will your speed be? I am not sure if im explaining myself correctly.

[Flying Scotsman]

This is an interesting thread, though it is curious that the initiator has not responded. There are some really good responses to what our expectations are in relationship to cost, skill levels and what speed we are comfortable at running varoius hull designs.
I am a sport boater and enjoy "building" my boats as much as running them and I err on the side of caution. I take my hat off to the true racers, as I and all of us benefit from their endeavours in pushing the envelope.

Douggie

[Fluid]

Note that nowhere in my posts did I say that GPS speeds are not accurate. I have run dozens of SAW passes through timing lights with a GPS on board, and most of the time the GPS speed was within 1-2 mph. It always read high, which makes sense since it measures the highest speed over a short interval, while the boat may have been accelerating through the traps giving a lower average mph. The difference is that most of those who have a 80 or 100 mph GPS speed would never be able to set a SAW record with that setup.

GPS racing is certainly fun, but SAW through timing traps is all that is officially recognized. Video and GPS photos can be easily faked, official timing can't be.




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[Gary]

My Hydro boat on dead flat water with an Eagle Tree and a garmin 201 GPS on board and with someone shooting with a radar gun would normally run 94-98mph. Now i know that its not a true mph as compared to real SAW events by everyones standerds but i have to say that in my opinion the boat had to be going that fast on its flatout runs only because of three different measuring systems. I would back them up with almost identical runs aswell. As far as crashing.......yes, cracked up boat , motors ripped out, and hatchs ripped off.My Garmin GPS one time punched a hole through the transom and sunk to the bottom of the lake on one of my more spectacular crashes. I could be way off here with speed so who knows. .....................Good Times!!!!!! LOL

[crabstick]

There is a big difference between 100 mph on a GPS and 100 mph through the traps at a SAW event. One is just for grins, the other is for legit bragging rights (and maybe a plaque). GPS racing is fun, but it is pretty meaningless when comparing to SAW trap speeds. On a GPS you only have to be at speed for a fraction of a second; SAW traps are 330 feet apart plus the run-up and slow-down.....


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GPS IMO is a good tuning tool. some GPS's only have a 1hz gps unit and they dont refresh as often and sometimes can come up with some strange figures if you are turning sharply

Im generally sceptical of GPS speeds unless I see video.
a LOT can happen in 100 meters, specially if you are right on the ragged edge.

[Fluid]

There is a big difference between 100 mph on a GPS and 100 mph through the traps at a SAW event. One is just for grins, the other is for legit bragging rights (and maybe a plaque). GPS racing is fun, but it is pretty meaningless when comparing to SAW trap speeds. On a GPS you only have to be at speed for a fraction of a second; SAW traps are 330 feet apart plus the run-up and slow-down.....


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