I might try a gas powered Motail

I might try a gas powered Motail

Post by John Do » Sat, 04 Aug 2012 02:30:20


Battery technology just isn't advanced enough. No doubt it will be
someday, but I can't wait. It will/would still use my leverage
traction technology so that the device can be light enough to
carry.


The only real problem I have with gas power is noise, so I'm
planning to use a four stroke engine weed eater. Maybe with a
tiller attachment for the wheel axle. My only concern with that is
the wheel will be off to the side maybe 1/2 inch farther than it
should be. Otherwise, it looks like a very simple build.

Taking a wild guess, using a 20 inch wheel should go about 14 mph.
I might use larger. The lighter the better.

 
 
 

I might try a gas powered Motail

Post by John Do » Sat, 04 Aug 2012 18:33:44

Instead, going with a 2-stroke (Echo GT-225C).

Hopefully I will at least be able to get an idea of what a gas
engine will do for an inline skating Motail (push stick). It might
be noisy, but it needs to be light as possible. And apparently
light weight is what two stroke engines have going for them.

 
 
 

I might try a gas powered Motail

Post by John Do » Fri, 10 Aug 2012 08:08:00

It weighs 8.8 pounds, without the gearing and wheel. Probably less
than 10 pounds, plus fuel. I hope it's powerful.

Combined with my leverage traction method, grass trimmers look
like an excellent store-bought device to use for a Motail.

Quote:
> Instead, going with a 2-stroke (Echo GT-225C).


 
 
 

I might try a gas powered Motail

Post by John Do » Sat, 20 Oct 2012 08:14:07


Quote:
> Instead, going with a 2-stroke (Echo GT-225C). It might be noisy

I heard one up close today, it's not too noisy. That's a major
plus. If the 21.2 CC engine is not powerful enough, I will
probably try 27 CC.
 
 
 

I might try a gas powered Motail

Post by John Do » Fri, 28 Dec 2012 11:07:11

Almost through. Took it out for a test drive. It's very difficult
to control without a roll bar (a thing/stopper that keeps the
wheel from running too far forwards). So I stuck that on today.
Will finish that part tomorrow. Also need to make a real
throttle/speed controller. No doubt I looked silly trying to
control the device without those things. Anyway... Not enough
information to tell whether it's better than an electric version
with a decent/expensive lithium battery. However, since I have
experience with a cheap electric version (see the picture), I know
that the concept does work well and that it can be lots of fun.
Can't wait to finish it and do some real testing. It's heavier, at
8.5 pounds.

http://farm6.staticflickr.com/5270/5650406873_f179e62d61_b.jpg

Instead of a roll bar, that one uses a leg hook. It worked fine,
but it puts lots of pressure on the gears and engine. Also
possible is to use both, the hook and the stopper (the stopper is
not installed on that version). It's also the difference between
using the GoTail (changing its name from "Motail") on the side, or
between the legs.

--

Quote:
> Instead, going with a 2-stroke (Echo GT-225C).

> Hopefully I will at least be able to get an idea of what a gas
> engine will do for an inline skating Motail (push stick). It might
> be noisy, but it needs to be light as possible. And apparently
> light weight is what two stroke engines have going for them.