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In case you were wondering, here's a light-weight fuel cell made from aluminum. It holds 20 gallons of fuel and weighs about 22lbs according to the description.

In case you were wondering, here's a light-weight fuel cell made from aluminum. It holds 20 gallons of fuel and weighs about 22lbs according to the description. https://www.amazon.com/20-Gallon-Lightweight-Polished-Aluminum-Street/dp/B072JBGCGM/ https://www.amazon.com/20-Gallon-Lightweight-Polished-Alumin... This is just some random fuel cell I found on Amazon. There are probably even lighter options out there. Racers are always looking to shed weight. There are also lots of examples where the frame of a vehicle can perform double-duty and hold fuel as well. I don't think that any regular production car will ever do this as it's probably not safe, but the idea isn't a new concept. Here's just an example: https://bicyclemotorworks.com/product/built-in-fuel-tank-bike-frame/ https://bicyclemotorworks.com/product/built-in-fuel-tank-bik...

Theodores 8y ago
I think you read my comment backwards, petrol always has a simple tank, even in F1 where a lot of baffles and what not go into the design for safety and performance reasons. However, on electrified transport from the humble bicycle upwards there is a lot of extra brackets and boxes getting added. It is like cars from before the monocoque era, a chassis where none is needed. With the bicycle example you could put the batteries inside the frame instead of in a box mounted on the rear rack. These 'chassis style' products are not fine engineering and set a bad example.
- olyjohn 8y ago
  Oh yeah I see what you're saying. It's an afterthought on so many electrified vehicles. Makes sense and I agree. We have a lot of the Limebikes in our area, and the battery is just bolted to your standard bike rack. Always seemed like an afterthought to me too. Like you're saying, even in a simplistic design, it seems like you could fit a lot 18650 cells inside a tubular frame.

Theodores 8y ago

I think you read my comment backwards, petrol always has a simple tank, even in F1 where a lot of baffles and what not go into the design for safety and performance reasons. However, on electrified transport from the humble bicycle upwards there is a lot of extra brackets and boxes getting added. It is like cars from before the monocoque era, a chassis where none is needed. With the bicycle example you could put the batteries inside the frame instead of in a box mounted on the rear rack. These 'chassis style' products are not fine engineering and set a bad example.

olyjohn 8y ago
Oh yeah I see what you're saying. It's an afterthought on so many electrified vehicles. Makes sense and I agree. We have a lot of the Limebikes in our area, and the battery is just bolted to your standard bike rack. Always seemed like an afterthought to me too. Like you're saying, even in a simplistic design, it seems like you could fit a lot 18650 cells inside a tubular frame.