How to build Moonbeam, a 100 MPG microcar

The upcoming Automotive X Prize and the Maine Team

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Moonbeam's Activities 2008
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Why Not Electric?
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How to Build Moonbeam
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Photos 7, 8, and 9
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Improvements you might make
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Report from Boston's Altwheels Festival 2006
Maine to Santa Monica at slow speed
Report from Santa Monica's Altcarexpo
Some interesting videos to look at
The upcoming Automotive X Prize and the Maine Team
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If you were to drive "Moonbeam" around with me for an hour, you would feel a great burst of encouragement.  Everywhere, people are encouraging, and always ask either, "where can I get one?" or "will you make me one?"


I've wondered where I might go from here, and in April 2007, began to find an answer: the Automotive X Prize.  This competition, to develop a 100 MPG marketable car, takes place over the next few years. See: http://auto.xprize.org/


     I soon joined their forum, http://auto.xprize.org/forum/ and began a dialogue which moved my thinking along: http://auto.xprize.org/forum/search.php?search_author=jory


 


Here's an update:





Joined: 02 Apr 2007
Posts: 44
Location: Camden, Maine, USA










PostPosted: Sun Jul 08, 2007 9:18 am    Post subject: Progress Report from the Maine and Other Teams Reply with quote




The Maine team is called "Maine Automotive X" and we have meet in full session 4 times, and in sub-groups 3 other times. Here's what has happened so far:

We have incorporated as a non-profit corporation in the State of Maine. This is quick, easy, cheap ($40), can be done without a lawyer, and can easily be changed to for-profit status later if necessary.

The Body Design Subgroup has been working with drawings and settled tentatively on a four-wheel, tandem-seated very beautiful design.

We felt that since the three-wheel configuration definitely requires a motorcycle endorsement on one's driver's license; is quite sensitive to the center-of-gravity shift with varying passenger loads; and represents another, perhaps unnecessary, marketing gamble; that we would go with two, very light, closer-spaced, undriven rear wheels.

Tandem seating is another marketing gamble, but since our basic idea is to see what light weight and aerodynamics can accomplish, the tandem seating advantage was just too important to ignore. We may change our minds later.

The Component Search Sub-group is centering in on an available, inexpensive, state-of-the-art engine, transmission, front-wheel-drive unit. This narrowing of possibilities comes from two factors:

The group has talked me out of a lithium BEV, my first love in drivetrains. It became clear that lithium batteries are 'unobtainium' as one forum member has coined the phrase. This follows from the present X-prize time frame, as well as our wish that the vehicle should cost near $10K in production.

And secondly, you need to consider our mission statement:

Our purpose is to design and build a prototype within the constraints and time-frame of the Automotive X Prize, in order to win that prize. Except for the body itself, we will use only proven, existing, available components.

This mission cuts out everything unproven. There are lots of exciting ideas out there. We have neither the time nor the money (nor in my case the inclination) for the tedious cut-and-try process of finding something revolutionary which works.

So at our next meeting, we will debate a number of gas or diesel complete drivetrain choices, and come closer to choosing one. Some will be from "Kei" cars, which are about the power and physical size we think we need.

But our main thrust over these next weeks will be fundraising, the central make-or-break issue at this time, as we near the purchase of components.

So that's our status as of July 8. I WOULD LOVE TO HEAR ANYONE'S IDEAS ABOUT OUR THINKING SO FAR! We certainly don't want to go up any blind alleys.

There are members of our group who feel cautious about leaving the three-wheel configuration or about choosing tandem seating. We are also cautious about the weight of our drivetrain choice, since we hope the vehicle will eventually weigh only 800-1000 lbs.

I put this information out there from a deep committment to an 'open source'. That's the way I personally hope this event will proceed. "Should I be secretive?", this blabbermouth once asked our group. They said: " At least you can be open until we have something to be secretive about!"

I, myself, go through love-hate phases: At times I wish I'd never heard of the AXP. I'm 66, I say. I should be hiking in France. But at other times I thank the stars for this inspiration: Something happened in California which has this hodge-podge of people in a backwater 3000 miles away working together, inspiring each other.

Someone else on the forum said that this is a gift we can give to our grandchildren. Our effort here counterbalances the poor legacy we might leave them otherwise....


 


September 9, 2007    Things are coming along nicely, with money trickling in.  $5700 so far.   Most exciting is that we have been invited to use the space of the nearby technical school, which has lots of equipment.


We're about to buy our first components, a turbo-diesdel engine, and a wrecked ATV for the front end.  The car will be about 1000 lbs, a 3 wheeler, and have a 50 X 50 X 100 inch footprint.


Of course, it will also be drop-dead beautiful....


Anyone wishing to contribute to the project, Tax deductible, please send me an email: moonbeam25@verizon.net






Feb 23, 2008
Here is a recent picture of "Dirigo" our entry for the X-Prize.

It is now a rolling chassis, about 60" wide, with a wheelbase of 100" and an anticipated final length of about 135".

It's front wheel drive, using the Kawasaki Mule's front differential, with the Diahatsu 950 cc 3 cylinder turbo behind the passengers, driving forward thru a transmission we're ordering from Florida, which has gear ratios easy to swap.

The single rear wheel assembly is from Kawasaki motorcycle.



Our team has simmered down to 4 workers, plus a treasurer and myself. We have enough capital for the time being and plan to be at the AXP opening in New York next month without a vehicle, but with lots of pictures. We may bring the strip-planked, varnished body to give some idea of the vehicle


Dirigo is anticipated to have a final weight of 1000 lbs, carry two passengers and some cargo, get a routine 85 MPG and about 100 MPG in highway driving. We don't know how the high end and acceleration figures will be.


If it does this, it will be a great 'proof of concept' for what a lightweight diesel car can do. Compared to our motorscooter-based prototype "Moonbeam", Dirigo is quite roomy and therefore more marketable.




I hope to meet lots of our fellow contestants at the New York Show.


(and I'll mention to the Aptera folks, that if it's only that rear wheel which is powered; I'm pretty sure they have winter driving problems in places like Maine.)


all the best, Jory Squibb







for a report of that show see:

http://www.autobloggreen.com/2008/03/24/new-york-2008-jory-squibb-returns-with-an-x-prize-entry/

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Here are some photos as of April 15. You might suspect that some of the building team are boatbuilders! So far, you can't get in and out of "Dirigo".

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