Ellon Musk rocks.
Ellon Musk rocks.
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'03 - '10 Starlight Black S2 111S
'11 - '17 S2 135R
'17 - '19 S2 Exige S+
'23 - ?? Evora
Re: Ellon Musk rocks.
Awesome,... Although, far from expert, I'm not sure how the weight of the batteries will help the buoyancy.
- thinfourth
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Re: Ellon Musk rocks.
Which would be a valid point if he was wanting something that floatedDominic wrote:Awesome,... Although, far from expert, I'm not sure how the weight of the batteries will help the buoyancy.

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Re: Ellon Musk rocks.
Surely it needs to resurface at some point?thinfourth wrote:Which would be a valid point if he was wanting something that floatedDominic wrote:Awesome,... Although, far from expert, I'm not sure how the weight of the batteries will help the buoyancy.

Re: Ellon Musk rocks.
Actually, he'll need the batteries as ballast to even sink in the first place.
Water has a density of 1,000 kg/m^3.
The car has approx 4x2x1 m dimesions = 8m^3. So to maintain neutral buoyancy you need a mass of 8,000kg. Let's say half the space is not air space, that still leaves 4,000kg to find. The original Esprit was only 1,200kg, ish, and even with all the stuff they'll need to brace it with to stop it bursting/leaking, you're still going to need ballast to reach the 4,000kg mark, I think.
Of course he could use thrust to achieve this instead, but then you cannot "hover" - you must be flying in order to force the vehicle down; if the engine cuts out, you'll resurface with little grace.
Oh, and 4,000 kg isn't going to make for an exciting sports car
Cheers,
Robin
Water has a density of 1,000 kg/m^3.
The car has approx 4x2x1 m dimesions = 8m^3. So to maintain neutral buoyancy you need a mass of 8,000kg. Let's say half the space is not air space, that still leaves 4,000kg to find. The original Esprit was only 1,200kg, ish, and even with all the stuff they'll need to brace it with to stop it bursting/leaking, you're still going to need ballast to reach the 4,000kg mark, I think.
Of course he could use thrust to achieve this instead, but then you cannot "hover" - you must be flying in order to force the vehicle down; if the engine cuts out, you'll resurface with little grace.
Oh, and 4,000 kg isn't going to make for an exciting sports car

Cheers,
Robin
I is in your loomz nibblin ur wirez
#bemoretut
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Re: Ellon Musk rocks.
Fascinating that he is going to do it but I hope the original Esprit remains original and doesn't get hacked about and sunk in the process. 

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Re: Ellon Musk rocks.
...erm. Or use water ballast tanks, thus meaning it can still be an exciting sports car toorobin wrote:Actually, he'll need the batteries as ballast to even sink in the first place.
Water has a density of 1,000 kg/m^3.
The car has approx 4x2x1 m dimesions = 8m^3. So to maintain neutral buoyancy you need a mass of 8,000kg. Let's say half the space is not air space, that still leaves 4,000kg to find. The original Esprit was only 1,200kg, ish, and even with all the stuff they'll need to brace it with to stop it bursting/leaking, you're still going to need ballast to reach the 4,000kg mark, I think.
Of course he could use thrust to achieve this instead, but then you cannot "hover" - you must be flying in order to force the vehicle down; if the engine cuts out, you'll resurface with little grace.
Oh, and 4,000 kg isn't going to make for an exciting sports car
Cheers,
Robin

Re: Ellon Musk rocks.
Pretty tough to use water as ballast 'cos water is just a dense as water - inherently neutral.
You can use water as buoyancy control ... but the passenger compartment will need to remain full of air. Even allowing for two humans sitting in the cabin it will still contain approximately 3m^3 of air. So you need to find 3,000kg to make that sink. The car has mass 1,200kg. You need something much denser than water to add the mass and not increase the volume of the vehicle (which is presumably the goal).
Actually the metal water tanks and the pumps/compressors needed to fill/empty them are probably pretty good ballast. As are the batteries. If it's going to be able to hover, it will need to be perfectly balanced which means tanks at the front and back (otherwise it will float nose up or nose down).
Anyway, the point I was making is that to you need to add ballast to a car to make it sink, or replace almost all the air with water.
Cheers,
Robin
You can use water as buoyancy control ... but the passenger compartment will need to remain full of air. Even allowing for two humans sitting in the cabin it will still contain approximately 3m^3 of air. So you need to find 3,000kg to make that sink. The car has mass 1,200kg. You need something much denser than water to add the mass and not increase the volume of the vehicle (which is presumably the goal).
Actually the metal water tanks and the pumps/compressors needed to fill/empty them are probably pretty good ballast. As are the batteries. If it's going to be able to hover, it will need to be perfectly balanced which means tanks at the front and back (otherwise it will float nose up or nose down).
Anyway, the point I was making is that to you need to add ballast to a car to make it sink, or replace almost all the air with water.
Cheers,
Robin
I is in your loomz nibblin ur wirez
#bemoretut
#bemoretut