DIY hitch-mounted boat tail on Audi A2 3L (photos)
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Found out about this Audi + tail from an inbound link to my thread about the Blackfly's prototype boat tail.
An Audi A2 forum was reacting to this vehicle: http://www.a2oc.net/forum/attachment...5&d=1309774028 Did a Google search of the text on the side of the tail, which led me to a Netherlands web site documenting the build: aerotail http://www.cathelijne.nl/images/priv...5052011142.jpgEDIT: the tail builder has joined EcoModder and posted a thread here: http://ecomodder.com/forum/showthrea...2-18413-2.html http://www.cathelijne.nl/images/priv...5052011146.jpg http://www.cathelijne.nl/images/priv...8052011153.jpg http://www.cathelijne.nl/images/prive/tail/img_0871.jpg More photos & info (you'll have to Google Translate it, unless you read Dutch) here: aerotail |
I like their analysis:
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Wow, I really like this. It looks decent. The build quality is quite good.
You hear that?... It's the sound of gears turning. Hmmm. I could so DO THIS. I have the need (Trips out west in my future). I have the skills. I have the tools. I don't have the materials, but that can easily be remedied. I should do this. I must. |
Looking forward to the build thread. :)
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It's surprising to see people bash something that gets better fuel efficiency. I guess i'm too used to ecomodder.
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Well, that looks a lot smarter than a car-top box - and smart is pretty in my book.
If it were built and marketed as storage enhancement first, and aero/economy enhancement second, it might be more acceptable to the naysayers. Looks like it could use some better gap management, but I like it. A lot. |
considdering the A2 already has an 0.25Cd ! one can only imagine what the Cd of this combination must be. plus the fact this is esentially a cargo box makes it legal where permanent extentions would not be
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Metro, THANK YOU for the link:thumbup: This is the kick in the ar$e I need to get my mods going again (and legalizing, see below).
Have you contacted the owner? I'd like to see a few more construction details covered, maybe in a new thread? If you like, I can write them a message since I'm interested in how to legalize this in Europe (the license plates suggest it is legal). I followed a link and noticed a page about an aero'ed e-motorcycle, which I thought I'd seen before (EM?): e-motion That A2 forum is hilarioushttp://ecomodder.com/forum/member-pi...13-rotflol.gif But should I be laughing at them when they are already laughing at us? Feedback loop, feedback loop, feedback loop, ... Quote:
I have the need (car used mostly for long trips with friends). I can find the materials and tools. I only partially have the skills, but I'd be more than happy to remedy that:D Quote:
Gotta find a way around that. |
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what i'm thinking is if you add two wheels to the tail and perhaps some other things to place it in the legal definition of a trailer, (without being one) if you'd ever get into some legal trouble because of the contraption, and you can prove it's legally a trailer, they can't do much. bit of a silly idea perhaps, but if lawmakers fail to be creative you must :) |
I have been planning to build a similar cargo box, delayed by a boatbuilding project. I really want the extra 10% FE. If I build a cargo box and add a killswitch, I think I could get 20% by EOC as much as possible. With my car, I think I could reach 60 mpg. For a while I was thinking about selling my car and going without a car, but I really enjoy driving through the country and seeing the sights so I think I will do what I can to increase FE. I like it that I could get better mpg than a lot of motorcycles out there.
There are two methods that I have been thinking about: 1. Plywood stitch and glue - this is a boatbuilding technique using epoxy and thin plywood. I would use the thinnest, lightest plywood I can get from Menards. This would result in a squared off cargo box. 2. Insulating foam - find an adhesive that will glue foam (PL Concrete and Masonry Sealer?). Get sheets of insulating foam and cut them to shape. Use screws to screw and glue the sheets together. Do some minor shaping with an orbital sander. The frame of the cargo box would be a simple "T" of 1-1/4" steel square tube. I already have one made up. Then bolt on a piece of 3/8" plywood as a base, and the rest of the cargo box is fastened to the base. I may build one to open up and actually use for cargo but I don't want any weight that far back so I don't expect to use it for cargo. I rarely fill my trunk, I have more space than I need. If I need to haul something big, I use a bigger vehicle. It is probably easier to just build a box that doesn't open. Because of the reaction I got from my previous tail, I would label the thing "CARGO" with large letters. Even if it did not open up to hold cargo. just to minimize the hassles of rubberneckers. I would add handles on top and skids on the bottom to make it easier to install and remove. Even if this reduces aero a bit, it will make it much easier to deal with. |
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