On Mon, Oct 12, 2009 at 13:35, Zan Lynx <[email protected]> wrote: > On 10/12/09 1:31 PM, Evyn MacDude wrote: > >> On Mon, Oct 12, 2009 at 09:27, Onno Meyer<[email protected]> wrote: >> >> >>> >>> The LP18 Grav Plow is actually a contragrav rotary tiller, but on most >>> worlds in known space nobody makes such technical distinctions. The LP18 >>> consists of an open seat mounted on top of the narrow engine pack and an >>> 18' axle with rotating tines. >>> >> >> >> This one really is science fiction...... >> >> Plows need traction... Kinda like a Grav powered bulldozer. Not efficient >> at >> all. >> >> Now, as a no-till device it works fine >> > > I don't see why it needs traction. As long as it can provide equal forward > thrust as a "traction" tractor it should be able to do the same work.
Your giving up butt-loads of mechanical advantage, just for the geewhiz of a flying appliance. Or a small engine and transmission for much larger thrusters. It's a physics and engineering question. But as I said, a grav powered no-till cultivator would be great. You could get much tight planting patterns, using density of planting to choke out weeds, spot application of chemicals etc....... -- Evyn _______________________________________________ GurpsNet-L mailing list <[email protected]> http://mail.sjgames.com/mailman/listinfo/gurpsnet-l
