Those stub frames are something I didn't plan very well and might not be even needed. On the other hand I need to support the outer side of the...
A hardy disc is a rubber donut with six bolt holes. On automotive application they have a center pin that centers them and carry the weight of the...
Thanks for the comment Barry Going to have two fans in the engine compartment, one of them ducted from under the engine. Engine air intake is at...
DCockey The lakes are just about to freeze over, so I have a few months. Without a major disaster, test drive in may or june.
Hello Thought it is time to update a couple of images here too, it's been 518 days since last time after all. [IMG] [IMG] Made the...
Jonboat An interesting idea but there are some problems. First you need to get the prop rpm up to over 500 if you don't want to fit a 40 cm dia....
Hello I had a long break in boatbuilding as the welding wire took five and a half weeks to arrive. Now I've been working on the boat every now...
Hello Just got around to take a couple of pics of the pedal setup. [IMG] [IMG] There is no screws on the front stem connection, but...
Angelique I don't remember if I actually counted the teeth, but I'm 95% certain the ratio is 4:1. cheers L
Hello Thanks Angélique for the calculations. I am not that concerned about the gears for a couple of reasons. First off, the revs these things...
I hold in my hand a Mirka 125mm cutting disc for steel. Printed to the surface are two limiting numbers, 12.250 rpm and 80 m/s, the latter being...
TeddyDiver The smaller gear is on the motor side so it is 44.000 for the motor. cheers Lurvio
Hello Thanks Angélique, but I'm affraid you have a small problem in the calculation. The disk spins 11.000 rpm in these things, motor spins...
"This Thread is more than 657 days old." :P Might be a good time to update this thread. I made the prop tube out of electric conduit pipe,...
[IMG] cheers Lurvio
