Turning With A Long Bumper Pull Trailer
I have a 38 foot bumper pull trailer and I will be pulling out of my summer park in 2 days. I hope some of the experienced pros here can give me some guidance. I've taken 3 short trips in the new tr...
Forum Discussion
blt2ski wrote:I agree, that would be useful information to know.nickthehunter wrote:
Just to point out one thing, tow ratings on any truck tested to SAEJ2807 standard (which is pretty much all trucks) are not based upon towing a flatbed trailer. The max trailer weight rating of vehicles is partly determined by testing towing trailers with Frontal areas that are a minimum of 40 sft for 5000 lbs trailers up to 75 sft for very large triaxle trailers. You don’t meet the standard for pulling a 5000 lbs trailer with 40 sft frontal area, you don’t get to rate your truck for that max trailer tow weight rating.
Clicky
Ford tells you what the max frontal area limitations for their vehicles are See pg 17
Back in 92, I saw a poster in an RV dealership. It had max tow ratings for Ford.
F250/350 rigs had a max of 10K lbs at the time, same with GM/Dodge. That assumed you had no more than 80sqft of frontal area. 80.1-100 was lowered to 7500, 100.1-120 was lowered yet again to 5000, over 120 was not recommended to be towed by an F series truck.
The Ranger/Aerostar was maxed at 6000 iirc to 60sqft, lowered to 4500 from 60-70, lowered again to 3000 from 70-80, A trailer over 80 sq ft was not recommended being towed by Ford.
ALL the manufactures should be showing the effects, lowering of ratings etc if you go over the base weights, frontal area drag components etc. MANY of US are in actuality, over the ratings!
Marty
