Frontal Area
I am brand new to RVing, and want to be safe and comfortable.I have a 2018 Nissan Frontier Crew Cab 2wD. Max towing Capacity is 6300lbs Tongue Load 630lbs. Max GCWR 11,250lbs. I found expandables well...
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30# is a really small trailer, IE a tent trailer! Or is that additional sq ft vs base truck frontal area? But with this said, yes frontal area adds to HP needed to pull at a given speed. Some figures I did a number of years ago to compare some trailers I pull and GCW I was running down the road
15k lbs, 70# is 105HP at 60
15K 90# 135HP
18K at 70# 115hp
25K at 70# is 135hp
Gives you some rough numbers idea as to what is more important from a how much HP you need at a given wt and frontal area.
Another to add into the equation, at 15K lbs, 40HP per 1% grade additional from level ground.
Marty
15k lbs, 70# is 105HP at 60
15K 90# 135HP
18K at 70# 115hp
25K at 70# is 135hp
Gives you some rough numbers idea as to what is more important from a how much HP you need at a given wt and frontal area.
Another to add into the equation, at 15K lbs, 40HP per 1% grade additional from level ground.
Marty
