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Old 04-16-2021, 01:15 PM   #1 (permalink)
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Landspeeder Velomobile

Was told way back to post my velomobile project on here, but I’m so scatterbrained that I forgot up until now.

I’ve got a 23km commute on open highway in a large valley. On warm, calm days it’s beautiful; but those are rare. For the most part it’s a challenge at best. I’ve rode through hail, thunderstorms, wind storms, snow, ice, etc. But that’s just me flexin . I currently ride my homebuilt Roadrunner recumbent bike, which I built to use the group set from my cheap road bike. Does what I need, but it’s very clumsy in traffic and it lacks much ability to handle adverse conditions.

Enter the Landspeeder! Been an on-and-off project for the past year and a half. I’m chopping and nodding my Terratrike Tour II into a low and narrow machine with a full suspension, and will be building a fairing ala the Trisled Completely Overzealous. I’m shooting for a lightweight and low drag machine with practical additions such as turn signals and headlights. Currently, I’m working on the cross-boom for the steering. The chassis is made by crudely FMAW welding 4130 chromoly onto the trike’s frame. I got a TIG torch but it was a dud and had no warranty so I’m in no mood to try again.

https://ecomodder.com/forum/attachme...1&d=1618592684

https://ecomodder.com/forum/attachme...1&d=1618592684

https://ecomodder.com/forum/attachme...1&d=1618592684

https://ecomodder.com/forum/attachme...1&d=1618592684

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Old 04-16-2021, 01:28 PM   #2 (permalink)
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Quote:
I,,,will be building a fairing ala the Trisled Completely Overzealous
How will you deal with ingress/egress?
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Old 04-16-2021, 01:29 PM   #3 (permalink)
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Sorry for the pictures being askew, itís tricky to use this site on my tiny phone.

Hereís a pic of my bike as well:
https://ecomodder.com/forum/attachme...1&d=1618593972

Its definitely road cycling meets luge and itís as fun as it is fast. I ended up making it too tall, though. I stalled my civic at every stop learning stick, and I fell over on my bike at those same stops. If anything, it shows that my crummy flux core welds can be trusted.
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Old 04-16-2021, 01:33 PM   #4 (permalink)
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My buddy is insistent that 2.75” of ground clearance is enough. My dad’s VMAX has about 3” from the ground to the bottom of the engine, so I’m thinking I’ll be alright. Worst comes to worst, I’ll hop out and pull it. Bolting on a little ring onto the end would make that pretty straightforward. Getting to work should be fine, but my driveway is definitely a minefield. Time will tell.

I’m sure I won’t be matching the bottom of the C-O, just using it as an approximation for my final shape.
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Old 04-16-2021, 11:59 PM   #5 (permalink)
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Coming back to this again. Did you mean ingress/egress as in entering and exiting the fairing or entering and exiting the highway? I’m confused.
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Old 04-17-2021, 06:52 PM   #6 (permalink)
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Quote:
Originally Posted by JacobLeSann View Post
Coming back to this again. Did you mean ingress/egress as in entering and exiting the fairing or entering and exiting the highway? Iím confused.
Iíll take a shot and try to speak for Mr. free. I believe he means the fairing. When it is windy in the spring I have considered a project like yours so I will be following. You will have to fit your body into the shell and perhaps close the fairing over you. I will be interested to see how you work this out.
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The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.
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Old 04-19-2021, 11:37 AM   #7 (permalink)
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Several issues are common in this type of vehicle. Pedal clearance with the ground or interior is needed. If running in snow then 4 or more inches, 100 mm, of ground clearance would be needed. Have someone with a good welder do the 4130 tubing. A body shell can be designed using the software at recumbents.com. Canopies on sailplanes hinge at the nose or one side. The ventilation air comes in at the base of windscreen and exits behind the head. There needs to be some way to stabilize at rest with a parking brake. Lights, mirror, lap belt, and some form of windshield wiper would be useful. I have found some useful information in "The Leading Edge" by Goro Tamai. Aerohead would know of other sources.

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