Getting Aero - Speed Gains

I've been an avid cyclist for many years & have owned & raced many different type of bikes ranging from Road, Track, MTB, BMX, Lowracer, Tadpole trike, Recumbent...etc
On all of the bikes I've pedaled, lowering my body into an aerodynamic tuck (time trial position) has increased my speeds by reducing aero drag.
One bike I owned was known as a Lightning F40 (see 1st pic) & was basically a 3/4 faired recumbent (just head sticks out) with a fiberglass nosecone & fabric body (which I later replaced with a coroplast plastic body for better aerodynamics & speed). I estimated the Lightning F40 gained ~40% speed advantage being mostly faired (max ~30 mph unfaired, ~42 mph faired). Human powered bicycle speed records in excess of 80 mph have been set due to extreme aerodynamic bodies.
The full fairing 2 wheel bikes are awesome until the wind blows, then the sail effect created scary situations & unpractical for street usage.
Recently I began surfing for aero body fairings for upright bicycles & landed on Gravity Bikes. These BMX bikes built in the 80's & 90's with very slick motorcycle type fairings to race down hills. They are making a comeback & the fairings look slick for MB applications.
I would like to build a fairing onto one of my three MB's to see what kind of aero gains are accomplished, & not just for speed but for efficiency & comfort. Smaller engine MB's could see significant gains in performance & efficiency by lowering the power required to move at any given speed.
I also added a bubble & coroplast to a tadpole trike creating a 3/4 fairing (similar, but a crude variation of the slick velomobiles available today such as the Rotovelo by Trisled (see pic). The trike handled the wind much better than the F-40 but had a lower top speed, was heavier & took up more road width.
Anybody have any ideas/comments about partial fairings and how they can be integrated onto Motored Bikes for performance, efficiency, comfort?
-Lowracer-

I don't know how much the fairing would help with speed, but someone could make a really cool looking, cafe type racer with that blue style fairing that's on the bike in the 4th picture.

Air flow for cooling the engine? I like that one also. that picture and 2nd row center,I know same same. What NO peddles?

I think there's no peddals because they are gravity bikes, meant to coast downhill at high speed.

Yeah, these gravity bikes wer emeant for racing downhill on the streets without pedals.
I think since we MB'ers need pedals, a fairing such as the blue one in the pics could improve both performance & fuel efficiency without much of the drawbacks of a larger fairing (wind blown)...
-Lowracer-

hardest bit with an upright style bike is making a fairing that looks decent... most everything ends up looking like a cop bike, or simply lame...

the performance gains are worthwhile though


mmmm, gpv with small brushcutter

I was experimenting with mouting a lightweight aluminum rack on the front & attaching a small milk crate that would also serve as mouting points for some aero shaped plastic material....see pic
-lowracer-

Today, I got the milk crate nicely mounted using some aluminum bar & angle aluminum. Also incorporated some cheap handlebar mounts made for mounting water bottle cages to handlebars. I can now carry one of my two plastic gas cans (as large as 2 gallons) for long travels without gas stations fill-ups with extra room for stuff. Now I want to get some plastic fairing material to mount over & in front of the basket to get aero...
Still researcing blown lexan type fairings from ZZipper & Mueller, but also might just experiment with some thin plastic sheet (like those roll up snow sleds) or coroplast to create a decent shape to break the wind...
-lowracer-

Any updates on your front fairing idea?

That blue fairing bmx style bike looks nice. That would be great for a long mb trip and it just look so awesome. People would crash their cars trying to see an standard upright motorized bike with fairings!

mbatl,
I havent gone any further with the fairing plan. I removed the front milk crate from that bike & re-mounted the engine onto the front wheel.
Speaking of cars, I had two cars stop me a few days ago. One beeping its horn & holding up traffic, the other cutting across a field & hopping down off a sidewalk curb just to stop & ask me where they can buy one & if mine was for sale.
I directed them to the Dax & Staton websites.
Maybe there is a real market for these MB's?
-Lowracer-