AeroNautiCal
Explorer
I've seen a solar panel fitted into a bonnet (hood) which was a very neat installation, I think it was on this forum.
I've seen a solar panel fitted into a bonnet (hood) which was a very neat installation, I think it was on this forum.
The 110 is a wolf variant with a pintle mount, the baskets were a common fitment for the bonnet, sides & rear you see them come up often on Ebay, sadly the same cannot be said for the seats.
That 110 has the Exmoor trim mesh seats - very comfy, love to get my grubbys on those.
regards all
Gren
I'm thinking this must be a nasty hit for gas mileage.
The energy to move a vehicle goes up with only the square of weight, but with the cube of aerodynamic drag...
So messing with your aerodynamics will significantly hurt your mileage.
(This is why even an empty roof rack can really hurt mileage).
The base of the windscreen/base of the hood is actually the highest pressure point for the vast majority of cars, and is critical in minimizing overall aerodynamic drag.
By putting something on the hood, like a tire, the air hitting the base of the hood will be very turbulent, and I suspect will greatly increase overall drag.
I wonder if I can find wind tunnel tests for this....
-Dan
I'm thinking this must be a nasty hit for gas mileage.
But I'm thinking speed has more to do with economy.
6 of us in Defenders did a 8000klm trip. Some with stuff on the roof like jerry cans, some with tires on bonnets, some with both, and some as aerodynamic as a box can be. 4 different types of motors spending over 25 years of build and gear boxes from 4 to 6 speed. We all did similar economy when we all cruised at the same speed. Faster one went the faster the fuel gauge needle went down. That magic figure for economy of 90km/h or 55m/h proved best. Over 100 up to 120kmh or 75M/h proved worst.
Yup, speed impacts economy because wind resistance goes up with the square of speed.
http://en.wikipedia.org/wiki/Drag_(physics)
So while you noticed a difference in economy because of speed, the speed was not the property that caused the economy hit, it was merely an easily observable symptom.
It was the increase in wind resistance that was causing it.
-Dan
And the increase in rpm. A vehicle in neutral will burn more fuel at 3000 rpm vs 2000 rpm obviously.