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Upright Mike Posted - 01/12/2010 : 16:33:52
Below is my conception of a new idea for an Upright bike fairing.

Some history of upright fairings: Around 1913-1914 the first streamlined human powered vehicle race was held between two faired upright bikes. In 1914 they were banned by the UCI. Former UCI hour record holder Marcel Berthet went 49.99 km in one hour with a faired aluminum upright in the 1930's. He was 47 years old at the time. In 1974 Olympic cyclist Ron Skarin pedaled Dr Chet Kyle's streamlined upright, sewn by Joyce Kyle to a world record 43 mph. This event helped launch the first speed championships in 1975 as well as the IHPVA. Ron remarked that the streamliner swerved with heart stopping unpredictability. In the late 1970's more streamlined uprights emerged to set records. They too had problems with swerving due to their tall thin shapes with large side areas.

In the 1980's fully-faired Moultons (folding bikes with 17 inch wheels) were ridden and raced quite successfully by a team of engineers (Doug Milliken, Dave Kennedy). Jim Glover, Will Kennedy and others were the riders. In 1989, a RAAM team used the AeroEdge fairing. At this time within the HPRA racing circle, only Bryan Tucker http://www.wisil.recumbents.com/wisil/tucker-memorial.htm and myself raced uprights with fairings. With the passing of Bryan, I think I'm the only one left racing them.

I'm not going to build a SAIL like has been done in the past by enclosing the bike and rider top to bottom. I figure something up top and then Aero-Boots (please don't steal my patentable idea) around the bottom should help people to go faster on their uprights. World Record speed for an Upright fairing was set by Jim Glover at I think 52-53 mph on the Indianapolis speedway. My speed lists have him doing 51.2 mph at the 1986 speed championships in Vancouver.

In 1998, I spent about 3 months devised this fairing during a Masters-level engineering problem solving class. My classmates and I found 14 patents related to upright fairings for bicycles. Its an idea I've had languishing now for all these years.

It's not my goal to break this mark, as I know my fairing will not be as aero as some of these earlier fully faired machines. I hope I go at least a respectable 40 mph over 200 meters and maybe 30 miles in one hour. With the design I show, I hope it would be lot more controllable than the earlier fully-faired machines. Someone's got to bring some respectability back to uprights!

I welcome all comments and criticisms!
Mike Mowett

My past experiments with the spandex bag - AeroEdge fairing. This was developed in 1989 for RAAM. I narrowed it, but still only get about 1.5 mph average cruising speed increase (from say 23.5 mph to 25.0 mph) from it. It definitely needs a tail fairing section. - Here I'm doing 37 mph in a 200 meter qualifying run at Battle Mountain in 2005...

Wearing prototype Aero-Boots installed at Battle Mountain in 2005...
These were just cut up detergent and Armor All plastic bottles taped together.
25   L A T E S T    R E P L I E S    (Newest First)
Grant-53 Posted - 09/16/2014 : 13:21:27

This what I have been looking to do and you can see the similarity. Still suggest you mount the Zzipper to the head tube. Definitely awesome! Whether a tail or a fin you'll be able to keep up with Rocky the Flying Squirrel;)
Upright Mike Posted - 08/24/2014 : 09:35:02
That looks awesome Dave! Having a tail was something I always wanted! (Wait that doesn't sound right!)
Upright Dave Posted - 08/23/2014 : 12:00:05
Sure. I took a couple pictures this morning.

warren Posted - 08/22/2014 : 18:42:19
Dave - Can you get somebody to take a picture of you riding the bike?
Upright Dave Posted - 08/22/2014 : 15:22:50
Changed to a dual hinge hatch. Works better. Bike performance is still good. Small side/cross winds slow it down both directions though. Its pretty stable in light winds.

Upright Dave Posted - 07/15/2014 : 19:40:48
Ok. A few more pics. Trying to get wrinkle free pedaling and maybe save a few watts on the material rubbing my knees.

Edit: I made another hinged (using packing tape) flip up hatch so I could get to the downtube shifters. First one didn't work right. The hatch has a channel cut in the middle to get by the top tube/pump. Also snaps into place with tabs. Really need to relocate the shifters but this will do for now. Down to one finger clearance now.

Upright Dave Posted - 07/12/2014 : 15:05:37
Thanks! Good points. I usually fill the hole up front with my head and look through the Petg. I didn't use any zippers. I'm assuming the velcro has more margin for error. I used the industrial type. Added another foam box inside around the legs. Packing tape seals the holes. Stitched up the hand holes some as they were too big. Hope it works. Not much else to do now but work on the motor.

Upright Mike Posted - 07/01/2014 : 19:43:45
Great job Dave! I had velcro patches originally along the top side opening of my sock. However I didn't have enough and the flaps would come apart. Then the scratchy "hook" side of the velcro tabs would occassionally scratch my face or lips onetime drawing blood! It was crazy! Maybe a zipper would help. A long time ago, I had my mom sew on a zipper along the top opening of my sock. It definitely helped to keep things closed. However, sometimes it would start to unzip itself. I think the key is to extend the zipper and its cloth runners about an inch past the ends of the sock opening. Some cloths or jackets do this already. Otherwise with my zipper terminating on the spandex itself, it seemed to just keep getting tugged on and unzipping itself. So I resorted to biting it to hold it close (Another crazy idea), and then a safety pin (which I didn't like so close to my face either!).
Upright Dave Posted - 07/01/2014 : 13:06:08
Had a great run this morning! +1.1mph on the sock! 26.45mph avg! Might be some more speed in it. Needs some velcro on the front sides or bottom of the box. It was blowing outward. More pics:

Upright Dave Posted - 06/30/2014 : 21:38:44
Thanks Mike. Its great to hear your enthusiasm and experience! I only tried this because of this thread.

Cool idea Grant. I like building rc airplanes and sailplanes for fun. It's fun applying rc techniques to bikes. I recently started building foam airplanes but usually use wood. Here's the foam box I made for the tail. It only weighs 1 oz. It's a difficult to reach area if you're on the bike so I didn't use a zipper. I may glass it later but no use doing that right now. I can just reach the back of the tail to pull it off. I really don't know if it will help reduce vacuum but I'll try it.

Grant-53 Posted - 06/28/2014 : 10:04:16
After a tough winter all around I'm back to the fairing projects too. The website www.vintagesailplaner.com/Sheet1bis-9.pdf gave plans that seem to be adaptable to a triathlon bike. The length is shortened to the No. 6 bulkhead. The profile covers from the shoulder to just below the knee. My running gear mule is my antique 26" x 1-3/8" Huffy 3 speed tricked out with 13-16T rear gears and 40-50T front sprockets.
The handlebars are 21" steel flat with homemade aero bars 10" apart.
On my Jamis commuter bike I attached the front nose section to the head tube so I can steer behind the fairing. This also make for very little cross wind input. Side panels and a tail box are on the drawing board. The laminate made from 1" wire hex mesh, 5 mil plastic sheet, and contact cement came out well. Now I have a choice of materials to try: 4mm coroplast, mesh laminate, 3/8" plywood, Al and SS sheet metal, and aluminum honeycomb. panels.
Upright Mike Posted - 06/27/2014 : 21:23:07
ps: I did the same thing - having my handlebars and brake levers sticking out through the spandex. Its an unnecessary evil if you want to keep the fairing smaller
Upright Mike Posted - 06/27/2014 : 21:20:57
Excellent work Dave! Keep up the experiments. Its magic when you start to notice those gains!
your fellow upright bike fairing knucklehead!
Upright Dave Posted - 06/27/2014 : 19:36:20
Ok, still working on it. Trying to plug up the holes top and bottom. Added material and sewed up the top behind the back. Working on a foam plug to stick underneath in the tail. Trying to get rid of any parachute effect. Might need a zipper or two.
Upright Dave Posted - 06/24/2014 : 09:15:16
Working on my bike again. Did the sock over as best I could with a brace in the back. No speed difference. It doesn't work. Hard to believe.

AviationMetalSmith Posted - 09/05/2013 : 11:31:20
Originally posted by Speedbiker

I just wondered because A&P mechanics are some of the most highly regarded metal crafters. Yet your creations use a very wide range of materials, few of which seem to relate to aviation metal work.

The fact is, in the Navy's scheme of things, Fiberglass is classified as a form of "Aviation Sheet Metal" . This may be due to the fact that an Aircraft Carrier has three hangar bays, 106+ Aircraft, and may be a thousand or more miles from land, or anyplace that might have a supply of sheet metal. Each Carrier actually has a Composites Laboratory, and is stocked with vacuum bagging supplies, Epoxy , and a roll of Carbon Fiber, which is at least six feet wide and two feet in diameter. I was told that the roll of Carbon Fiber cost the Government $600,000.00. (six hundred thousand dollars).

But Fiberglass still costs money, and there is a great cost savings by using coroplast. No, I wouldn't trust an Aircraft made of coroplast. But I have heard of Corrugated Titanium, which is similar to coroplast dimensionally. Waiting to get my hands on some...
AviationMetalSmith Posted - 09/05/2013 : 11:19:16
Originally posted by PUGZCAT

I'm really digging the crafty style. The video helped me wrap my head around it, I get it. Go down to your city's road side work shop and score some 3M prism tape scraps and pimp it out with UV proof, retro reflexive goodness. The two bike co-ops in Ottawa pickup 3M sign scraps once in a while, I've 3M-ed a few bikes.

Yes, well, I've two things to say. One, the reflective tape costs a lot more than the coroplast. Two, I have a friend who once worked in the county sign shop, and we talked about getting some reflective scraps, but it never happened .
+ Three: I am wary of using anything that may be construed as "Government Property", because then , due to a technicality, the Government would own my bike.
Speedbiker Posted - 09/04/2013 : 14:12:14
I just wondered because A&P mechanics are some of the most highly regarded metal crafters. Yet your creations use a very wide range of materials, few of which seem to relate to aviation metal work.
PUGZCAT Posted - 09/04/2013 : 14:01:10
I'm really digging the crafty style. The video helped me wrap my head around it, I get it. Go down to your city's road side work shop and score some 3M prism tape scraps and pimp it out with UV proof, retro reflexive goodness. The two bike co-ops in Ottawa pickup 3M sign scraps once in a while, I've 3M-ed a few bikes.
AviationMetalSmith Posted - 09/04/2013 : 08:47:59

Walk around tour video.

[url=http://www.flickr.com/photos/11629987@N02/9666784476/]IMG_0919[/url] by [url=http://www.flickr.com/people/11629987@N02/]AviationMetalSmith[/url], on Flickr

[url=http://www.flickr.com/photos/11629987@N02/9663554557/]IMG_0918[/url] by [url=http://www.flickr.com/people/11629987@N02/]AviationMetalSmith[/url], on Flickr

[url=http://www.flickr.com/photos/11629987@N02/9663555303/]IMG_0917[/url] by [url=http://www.flickr.com/people/11629987@N02/]AviationMetalSmith[/url], on Flickr

[url=http://www.flickr.com/photos/11629987@N02/1154346852/]Aviation Metal Smith[/url] by [url=http://www.flickr.com/people/11629987@N02/]AviationMetalSmith[/url], on Flickr

"AMS" stands for Aircraft Mechanical Structures, but everyone calls it Aviation Metal Smith. I earned my Airframers License in the United States Navy. Here's a photo of me standing beside an F14 Tomcat, armed with AIM7 Sidewinder Missiles.
PUGZCAT Posted - 09/02/2013 : 11:19:42
I want to know the answer to this question as well.
Speedbiker Posted - 09/01/2013 : 14:44:35
I took aircraft mechanics in trade school(as did my son), I have worked in several aerospace machine shops(my real trade), I have worked on a couple kitplane builds, and recently took Ron Fournier's class on metal forming and English Wheel. I just wondered where you derived your moniker "Aviationmetalsmith"?
AviationMetalSmith Posted - 09/01/2013 : 09:40:01
[url=http://www.flickr.com/photos/11629987@N02/9644131543/]DSCF0948[/url] by [url=http://www.flickr.com/people/11629987@N02/]AviationMetalSmith[/url], on Flickr

[url=http://www.flickr.com/photos/11629987@N02/9647367114/]DSCF0949[/url] by [url=http://www.flickr.com/people/11629987@N02/]AviationMetalSmith[/url], on Flickr

[url=http://www.flickr.com/photos/11629987@N02/9644125429/]DSCF0955[/url] by [url=http://www.flickr.com/people/11629987@N02/]AviationMetalSmith[/url], on Flickr

The bike performed nominally on it's test ride. Now I can drop any of a number of Fairings on the Loading Platform. The overall length of the Vehicle has been increased, which is a problem getting it in and out of Elevators.
I will have to make a new Fairing , or modify the existing one. There is plenty of Coroplast on-hand, so a new one would not be a problem.
AviationMetalSmith Posted - 09/01/2013 : 09:32:04
[url=http://www.flickr.com/photos/11629987@N02/9647364262/]DSCF0952[/url] by [url=http://www.flickr.com/people/11629987@N02/]AviationMetalSmith[/url], on Flickr
Speedbiker Posted - 08/31/2013 : 13:21:56

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