BlitzSRM

is still can't see the pictures. i wanted to see how big the boat is.

do i have to ba a member to see the picture?

xviper

Gernby, those pics are PRICELESS! I'm glad you were able to do this and show the detractors wrong. I post the following up on your behalf:

Gernby

I started a new thread here.

Gernby

Here is the video. Thanks to Xsharp for hosting it.

xviper

Geez, you hardly revved that thing up at all. I've seen guys new to stick burn their clutches out just starting off at an intersection. That was smooth, calculated and I don't see how it would stress the car at all. People fail to realize that you have 4.77's in the ass end AND you are only towing that thing for a mile. That's nothing. People need to be able think outside the box.

I've seen an Airstream being towed behind a K-car. Now THAT was cause for

Gernby

In this case, I think it may have helped that my clutch is so weak. I haven't been able to break the rear tires loose on dry pavement in almost 40K miles. It feathers itself now.

yogi

Here's a mirror for the video:

http://yogipatel.net/media/movies/S2...ing%20boat.wmv

Austblue

Firstly congratulations on your success gernby

But could you explain the bolded statement for me please? I dont see how any geometry could double the vertical reaction at a support. I understand that the moment force takes the offset into account but from my (little) understanding of tongue weight its the down force not the rotational, is that correct?

Gernby

The reason why I believe that the TireTail magnifies the effective tongue weight is because it acts like a lever on the hitch. The center of gravity for the load is between 1.5 and 2 feet from the hitch receiver. Basically it is not just applying downward force on the hitch; it is also applying torque to it.

Look at it this way:
If you put a 20 ft bar into the hitch reciever and applied 50 lbs of downward force on the end of it, there would be 1000 ft-lbs of torque on the hitch (no including the weight of the bar).

Austblue

That's what I thought that you meant. That rotational force (torque) is different to tongue weight in that tongue weight capacity afaik as tongue weight is the vertical force which is supported by the thickness of the bolts whereas the pulling or rotational force would impose a horizontal force upon the bolt connection and hence be a pull-out force which is supported by the bolts thread. These forces may be combined to calculate the total force when towing a trailer but that would be extremely complex to calculate without the right programs.

Anyway I see what you were getting at now so