Not wanting to quibble about things, but a few posts back it was mentioned that you can hand prop a Jabiru. The standard Jabiru ignition needs about 300 RPM to make spark. I know I was never able to spin my 2200 that fast by hand. Kind of interesting though, the 582 Rotax also needs about 300 rpm to make spark. Having the gear box will let you hand prop it if you really flip it fast. Good thing to, my battery was nearly dead today, and so I fired it up by hand. Got some nice flying in afterall! Take care, Jim Chuk

PS I've never heard of anyone handproping a 912 even though it has a gearbox. Anyone done it?