Complete list of available gear ratios for the Razor?

[Vertflyer]

I noticed that thereare other ratios available than the ones you can choose when purchasing. Is there a list of all possible ratios somewhere?

[ClayK]

The only one I know of is this one (http://www.miniatureaircraftusa.com/Support/Instructions/xcell_razor_600e_power_systems_guide_current.pdf), page 7.

[DavidH]

This is the stock gear ratio packages that I know about for the Razor 600E.

MA127-250 30 / 22 - 8.18:1 Ratio
MA127-255 28 / 20 - 8.4:1 Ratio
MA127-260 32 / 22 - 8.72:1 Ratio
MA127-265 30 / 20 - 9.0:1 Ratio
MA127-270 32 / 20 - 9.6:1 Ratio
MA127-275 38 / 16 - 14.25:1 Ratio
MA127-280 40 / 13 - 18.46:1 Ratio


There is different size pinions and belts also available.

David

[Vertflyer]

This page:

http://www.miniatureaircraftusa.com/Store/products.asp?cat=103&pg=3
and
http://www.miniatureaircraftusa.com/Store/products.asp?cat=103&pg=4

Has a few more.

I'm trying to figure out how to calculate it. Here are some examples...I'm missing some information:

Belt 75T Pulley 22-30 Ratio 8.18:1
Belt 74T Pulley 20-30 Ratio 9.0:1
Belt 70T Pulley 16-30 Ratio 11.25:1
Belt 70T Pulley 16-28 Ratio 10.5:1
Belt 78T Pulley 22-40 Ratio 10.9:1

plus more...but can't figure out the math..


Can't get 20 and 30 to make 8.18 no matter what I try....

[misskimo]

90t main gear , 15t secondary pinion gear , they are fixed , cant be changed , thats a 6 to 1 gear ratio then theres the other 2 gears that can be changed , like the 16t motor pinion and 28t secondary gear ratio on those gears are( 1.75) 6 X 1.75 =10.5