Trailer Question

bigbuka

Cadet
Joined
Jan 22, 2010
Messages
11
Okay...I am a new boat owner...how should my boat be on the trailer weight wise...should I be able to pick up the tongue on the trailer myself with the boat on the trailer...I can't now and am thinking about moving the boat back a bit on the trailer...I can really feel it when towing it with my truck...thanks
 

clarkbre

Petty Officer 2nd Class
Joined
Sep 3, 2008
Messages
176
Re: Trailer Question

The actual weight on the ball (tongue weight) should be 10%-15% of the total weight of the package. So, if your boat, trailer, engine and misc. weighs 1500#, your tongue weight should be anywhere between 150#-225# .

As far as feeling it on your truck, what are you feeling? Is a bounce or does it want to steer the rear of your truck around?

If the tongue weight is lighter than 10% you run the chance of trailer sway and/or wrecking. That happens when the rear of the trailer starts moving around out of sinc with the truck. This is due to too much weight on the rear of the trailer. You do want some weight on your trailer hitch to keep the trailer towing straight.

Think of your trailer as a tripod. It is very stable when the majority of the weight is balanced between the three legs (2 tires and the tongue). If a majority of that weight goes outside of the triangle, the tripod becomes a lot less stable.
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,095
Re: Trailer Question

should I be able to pick up the tongue on the trailer myself with the boat on the trailer...

Ayuh,... If it's the 1 in your avatar,... Nope, No way....

Clark has stated the best guidelines to use...
I agree that 10% is the bare Minimum...
 

rjlipscomb

Chief Petty Officer
Joined
Jun 2, 2009
Messages
582
Re: Trailer Question

The actual weight on the ball (tongue weight) should be 10%-15% of the total weight of the package. So, if your boat, trailer, engine and misc. weighs 1500#, your tongue weight should be anywhere between 150#-225# ... Think of your trailer as a tripod. It is very stable when the majority of the weight is balanced between the three legs (2 tires and the tongue). If a majority of that weight goes outside of the triangle, the tripod becomes a lot less stable.

Very well said. :)
 

robert graham

Admiral
Joined
Apr 16, 2009
Messages
6,908
Re: Trailer Question

Your trailer tongue weight is good, consider adding a set of air shocks to the back of your truck, hook up the boat, level it up with the air and it'll feel a lot better and be much safer on the highway. Good Luck!
 

JimMH

Petty Officer 1st Class
Joined
Sep 4, 2009
Messages
361
Re: Trailer Question

definitely a heavy tongue will pull better than a light one. I can't pick mine up I guess trailer and boat together weight in somewhere around 3800lbs. I estimate the tongue weight to be in the 400LB range and it pulls great!
 

livin4real

Petty Officer 2nd Class
Joined
May 22, 2009
Messages
167
Re: Trailer Question

should I be able to pick up the tongue on the trailer myself with the boat on the trailer

That really depends on what kind of weight you can move. Some folks can deadlift 5 or 600lbs, some can't tear a wet napkin lol. I can lift the tongue on ours (Chaparral Sunesta 210 and tandem) but it takes alot of grunting followed by me picking my jewels off the ground :D I will hazard a guess and say your hitch is a class III, which means it has a tongue weight limit of 500lbs. Overloading a tongue is just as bad as overloading the trailer. Folks with decent sized boats and tandem axle trailers sometimes can't even get 10% on their tongues without being overweight. The easiest way to check your tongue weight is take two relatively durable household scales placed next to each other with a couple blocks of wood (just something high enough to rest the tongue on so it's not all the way on the ground and you can use the jack to raise and lower it off the blocks) stacked up on them, laying equally across both scales. Now add the weights together with just the blocking on the scales and write it down. Now lower the tongue so it's centered between the two scales until the jack wheel is no longer supporting it and all the weight is on the two scales. Add the two weights and then subtract the weight of the blocking and you have your tongue weight (or really close anyways). Just figure up the percentage of your total weight (you can get this by using a weigh station at a dump or truck stop) and then you'll know where your at.
 

smokeonthewater

Fleet Admiral
Joined
Dec 3, 2009
Messages
9,838
Re: Trailer Question

Folks with decent sized boats and tandem axle trailers sometimes can't even get 10% on their tongues without being overweight.

Which means that they can NOT safely move their boat!!! althought MANY do it anyway and will go on and on about how safe it is.... then when someone has to panic stop and they stuff it in a ball into the ditch they whine and cry and claim it was the fault of the guy in front of them who slammed on the brakes.
 

j_martin

Admiral
Joined
Sep 22, 2006
Messages
7,474
Re: Trailer Question

Which means that they can NOT safely move their boat!!! althought MANY do it anyway and will go on and on about how safe it is.... then when someone has to panic stop and they stuff it in a ball into the ditch they whine and cry and claim it was the fault of the guy in front of them who slammed on the brakes.

The control issue is a matter of the trailer steering the rig as it's tires deal with the road. There needs to be enough tongue weight on the tow car, and enough mass and stiffness of tow car to control that. A tandem trailer, because it has 4 tires and a suspension that lessens the inertial effects of bumps and such, will tend to have less steering effect, and you can get by with a little less tongue weight and be safe.

Long story short, if you can't make a quick lane change without worrying about what the trailer is going to do to you, your setup or towcar is inadequate and the rig is unsafe.

hope it helps
John
 

livin4real

Petty Officer 2nd Class
Joined
May 22, 2009
Messages
167
Re: Trailer Question

Which means that they can NOT safely move their boat!!! althought MANY do it anyway and will go on and on about how safe it is.... then when someone has to panic stop and they stuff it in a ball into the ditch they whine and cry and claim it was the fault of the guy in front of them who slammed on the brakes.

Quite true, but I think the majority are over tongue weight and don't realize it. I mean heck, take a 3500lb boat, a 1200lb tandem and add in fuel, water, stuff and your easily at 5000lbs which puts you at the limit of class III (which if guessing makes up the majority of hitches being used) at 10%. The recommended %'s according to a company that makes actual tongue weight scales are:

single axle - 10% min/15% max
tandem axle - 9% to 15%

You gain a whole 1% of extra leeway with a tandem...lol.

http://www.sherline.com/lmbook.htm#refrn9
 

H20Rat

Vice Admiral
Joined
Mar 8, 2009
Messages
5,204
Re: Trailer Question

keep in mind the weight shift of the tongue. Never judge the weight with a scale with the tongue setting directly on it, it isn't close to accurate. You need the trailer at the same level you normally pull it.
 
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