cvalue13
Well-known member
- Joined
- Aug 17, 2022
- Threads
- 74
- Messages
- 7,153
- Reaction score
- 13,769
- Location
- Austin, TX
- Vehicles
- F150L
- Occupation
- Fun-employed
I don't think the physics is with you on this one
first, not to quip, but a "200% increase" of 340mi is 1,020 miles
but in any event, literally doubling the pack size does not double the range.
the truck becomes ~1,000lbs heavier just from the pack. Then the structural elements of the vehicle have to be made more robust, which increases weight. Then the steering, breaking, and other operational componentry has to become more robust, further increasing the weight, etc. So you do not get double the range by adding double the pack, even before accounting to a change in frontal plain.
But, moving just one click past talking in crayolas here, to a sharpie:
Current frontal plain height of production CT:
I have to run to appointments - who wants to complete the maths here?
first, not to quip, but a "200% increase" of 340mi is 1,020 miles
but in any event, literally doubling the pack size does not double the range.
the truck becomes ~1,000lbs heavier just from the pack. Then the structural elements of the vehicle have to be made more robust, which increases weight. Then the steering, breaking, and other operational componentry has to become more robust, further increasing the weight, etc. So you do not get double the range by adding double the pack, even before accounting to a change in frontal plain.
But, moving just one click past talking in crayolas here, to a sharpie:
Current frontal plain height of production CT:
- Height at medium is 70", with 9" of ground clearance, meaning the height of the frontal plane is 61"
- we'll even assume that Tesla can increase the height without increasing the width, to avoid making the design look aesthetically like a stretched version of the truck
- current width is 80"
- 61" x 80" = 4880 square inches
- 67" x 80" = 5,280 square inches
- a 7.5% increase to frontal plain f(and so drag force) from current production frontal plain/drag force (assuming variables stay constant)
- we'll even assume that Tesla can change the height of the CT's frontal plain without changing the Cd of the vehicle
- Cd of current production CT is 0.345 (so we've seen/been told)
I have to run to appointments - who wants to complete the maths here?
Sponsored