It has a range of 25km (15.5 miles) with two batteries and a top speed of 8kmph (5mph), though as always, real world performance will depend on factors like terrain, weather, and how much you've piled inside. It has a maximum load capacity of 260kg including batteries, which BeTriton suggests you could use to haul passengers, bikepacking gear, and even your pet.
Not much for mars but might be for earth use.
The trailer version is a little more practical, letting you use your own e-bike and coming in a handy flat-pack kit that can be assembled with simple tools, much like Ikea furniture.
It's certainly not cheap, starting at €14,500 (about $16,000), but BeTriton also offers a rental service and will soon be opening its calendar for booking in 2024.
A bit of redesign we have a mobile home
Additional: Some amazing bikes, quad bikes and velomobiles.
https://m.youtube.com/watch?v=8znCkm3BpPk
Some of these vehicles may indeed be nimble enough to handle the rugged terrain on Mars. Makes me wonder how far a man on Mars could go exploring with one of these lightweight electric quad bikes, with a inflatable tent and roll out solar array. Explorers could travel light.
]]>1000 watts/746 watts/hp = 1.34 hp. A typical fuel injected gas engine develops 1 hp per 22 cc. So 1.34 hp x 22 cc/hp = 29.5 cc. 1 hp = 746 watts
The capital is Nassau on the island of New Providence.
People have trips, Big Money from tourist flights.
Tiny Island has Insane Traffic
https://www.youtube.com/watch?v=kdz6FeQLuHQ
I was a bit impressed too how far it was being used and wondered if the others were of similar mileage. We do have a few ebikes as well and I wonder if these were being used in a longer range or not.
]]>The main problem I can see with bikes on Mars, is that much of the surface is covered by either loose regolith or rubble fields. Trying to bike over these would be tough.
]]>Important to remember is at some point we will go from pedaling to powered as resources are brought forward.
https://avt.inl.gov/sites/default/files … /power.pdf
How to GUIDE TO EV MOTOR CONTROLLER OPERATION & FEATURES
https://sterlinggtake.com/article/guide … es-part-1/
https://sterlinggtake.com/article/guide … es-part-2/
history of electric motors and how to control them
http://www.sunrise-ev.com/controllers.htm
Safety. Bike riding can be dangerous. Especially on rough unimproved terrain like on Mars. A fall or accident could damage the bike, potential stranding you. Or it could break a bone or damage your life support systems. All of these could be fatal. IMO the advantages of speed are more than outweighed by its dangers, slow and steady is the rule on Mars.
Back on Earth, the motorcyclist has less than two seconds to complete all safety measure all collision avoidance actions in an accident.
Fatality 5,579 per 8,317,363 registered motor cycles
https://www.iii.org/fact-statistic/fact … le-crashes
14% of road accident fatalities are motorcyclists
https://housegrail.com/motorcycle-vs-ca … tatistics/
Let's assume people riding bikes on the Moon and Mars will be going slower and moving safer.
Electric?
NASA has a plan for mini nuclear reactors on the moon which could one day power a lunar colony
https://uk.style.yahoo.com/nasa-plan-mi … 25584.html
This moon motorcycle concept by a Russian automotive designer is just wild
https://www.space.com/moon-motorcycle-concept-photos
The link to these YouTube videos showed up in one of the newsfeeds today ... I thought it might be of interest as a demonstration of operation in rough terrain:
https://www.youtube.com/watch?v=i4C0l8EXjto
The company that makes these appears to be in France.
(th)
]]>Thanks for your question and your (to me very) interesting suggestion!
The below ground tunnels idea has been part of the My Hacienda concept since its beginning, but the idea itself may well go back far into the early years of the forum archive. That doesn't mean it will ever be implemented, of course, but it has precedent on Earth. Much of the infrastructure of older cities in Europe is built underground, and in the less ancient US, a city like New York has extensive underground infrastructure.
You are the first person I've seen suggest a "push" method of moving cars in underground tunnels. That is an interesting idea.
The usual (that I am familiar with) approach to that is to generate a vacuum to pull containers through a tunnel network.
Either method would work, of course, and I'd be quite interested in seeing an analysis of the pros and cons of each method.
The way you can tell you have a suction system is if you open the door to a port and it tries to pull you in << grin >>
We have digressed a bit from Bikes on Mars << grin >>
I was trying to stay on that lane with the follow on to your aerodynamic shaped passenger compartment.
(th)
]]>Is this going to be above or below ground?
If you expend the effort to create traffic tunnels, then why not use sealed pods and compressed CO2 like the system that the bank uses to transport money and paperwork in the drive-thru?
]]>tahanson43206 wrote:I was trying to describe an enclosed cabin, within which a human could operate a mechanical drive mechanism in case the primary electrical drive system failed.
This would have been a great place to have inserted an image, so I'll try to remember that in future.
My first idea was a thin walled aluminum shell, but (upon reflection) I now think that a transparent plastic bubble would enclose useful atmosphere around the operator, and provide unlimited visibility. A risk for the operator of such a vehicle would be unwanted influence of Martian winds, although I suppose a tail wind would be useful if it could be managed.
Will this do?
https://tse1.mm.bing.net/th?id=OIP.W6i4 … d=3.1&rm=2
Internal lighting would be by LED since they are low in power use.
Cool picture. I think it is fair to conclude that a Mars bike would look very different to an Earth bike. I am intrigued by the idea of long range human powered journeys on Mars. Kind of like camping expeditions on a bike. With only 38% of Earth gravity, there are more options on Mars than on Earth, as a cyclist could carry more.
Air resistance on Mars is practically irrelevant, so frontal area does not matter, especially at the low speeds typical of biking, I.e 10-30mph. So the bike seating will be designed to allow the most effective posture for sustained human leg work. Lower air resistance also allows tolerance of greater weight.
However, weight is always an issue. A spherical vessel is the most mass efficient option in terms of mass per unit enclosed volume. It provides additional volume for things like oxygen, water, food, reclining seats, sleeping bag, etc. The average human under fairly sedentary conditions, will consume about 10MJ of food energy per day, requiring 0.76kg of oxygen. Under heavy work conditions, that might actually double, I.e 1.5kg oxygen per day. Producing this much oxygen through electrolysis of water would require about 25MJ of electricity. About 10m2 of flexible solar panels, weighing about 10kg, could be rolled out for 4 hours a day around noon time, to electrolyse enough water for breathing.
At night, the biker would wrap up warm in the sleeping bag, as temperatures in the cabin would drop far below zero. An aerogel blanket extended over the vehicle would minimise heat loss.
]]>A location where such a vehicle would seem especially useful is tunnels between habitats on Mars ... The tunnels themselves could be maintained at Mars ambient pressure and temperature, with just a bit of lighting provided by solar panels on the surface.
The advantage I see in this concept is that the vehicles would be entered/loaded in a "garage/airlock" at Mars standard habitat pressure, sealed up, and then the door would open to allow exit to the tunnel. The operator could move along the tunnel at a respectable speed, generating a light ahead to see the path better, and running lights for visibility by other traffic in the tunnel.
Upon arrival at the destination habitat, the operator would radio a request for the garage/airlock to open, the door at the destination would open, and the operator would drive inside. The door could be closed and the airlock represurized to Mars standard habitat pressure, at which point the operator would unlock the seals and exit the vehicle.
SpaceNut ... this recent discussion fits into the collection already created in the forum, in case future readers might wish to explore the full collection.
(th)
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