Motorcycle aerodynamics, a slippery and windy, slope?

[PeterS]

Are there any threads on here about working poly carb ? I've had good success slumping acrylic to make screens but have never used poly carb .Is it the same to work ?

[PeterS]

OK ,I found this .http://ecomodder.com/forum/showthrea...nate-4849.html

[Grant-53]

Yes, each material and thickness has an optimum temperature. Coroplast recommends using silicone sealant for bonding. My bicycle fairings use lap joints and I use zip ties.

[Michael Moore]

I noticed the mention earlier in the thread of the Royal Enfield Dreamliner. Here's some additional information/photos taken from Vic Willoughby's report on it. The mileage figures are based on Imperial gallons which are larger than US gallons:


The Enfield Dreamliner results:

. . . . . . fuel consumption
. . . . . unfaired faired

30mph 102mpg 126mpg
45mph 83mpg 105mpg
60mph 55mpg 74mpg
acceleration
15-40 mph 6.4sec 5.5sec
40-65mph 15.7sec 13.6sec
1/4 mile 20.3sec 19.6sec
1/4 speed 61mph 64mph
coasting from 60mph
388 yards 500 yards







cheers,
Michael

[PeterS]

Hi Michael , there are a few photos there I haven't seen ..thanks ! Where did they come from ?

[Michael Moore]

Peter, those are from Vic's 1982 book "Exotic Motorcycles - a tester's privilege" by Osprey Publishing, ISBN 0 85045 3224

In this folder on my website:

Index of /graphics/aero

I've also got a good article from Motorcyclist magazine that compared some early 1970s F750 race fairings.

Index of /graphics/MotoGuzzi

has a number of photos of the Guzzi racing dustbin fairings and

Index of /graphics/NSU

has many photos of the NSU "hammock" streamliners.

cheers,
Michael

[PeterS]

Thanks Michael ,I got my original photos from an old copy of Motorcycling, the British magazine.

I still think that combined with a diesel 10 hp engine this type of fairing , possibly a little narrower and with a more aero screen will do me. From the Dreamliner figures I should get 60mph cruising and 160 mpg US and that will be on biodiesel, so very cheap and with extremely low carbon emissions..

[Frank Lee]

Did you find a nice diesel?

[PeterS]

Yes I'll probably use one of these,
Brand New (In Box) Villiers f400DE(H) 10hp Diesel Engine | eBay
Chinese but better specs than usual and with sufficient charging capacity to run an electric start and lights. Something a lot of the Chinese ones can't do.... insufficient amps. I haven't started the project yet .I have to visit a bloke about 500miles away from here to check his diesel installation but he's been sick so I've put things off for a while .

[Frank Lee]

Neat. Looks like something I can't get here.