"Brent" b_philion hotmail.com wrote:

Sounds like an airboat hovercraft or some other type of propeller driven
ground effect vehicle

Actually it sounds closer to something like a skateboard with as prop motor
and a user on it. you are missing a huge amount of variables and for props,
pitch, density altitude, motors, and at speeds that slow your in the wrong
group

"that slow your" = "that show you are" ?

because very few things, If Any, in any of these groups fly at that
speed.

And aircraft move slow taxiing because they are not meant to be ground
vehicles they usually have very narrow stances and high centers of gravity
compared to a ground vehicle as soon as they have any kind of airspeed they
want to fly.

Look up an RC or Aeronautical engineering group on usenet or elsewhere. you
need to find design people not pilots

Or someone who can at least write...
--

















"Flaps_50!" moreflaps gmail.com wrote in message
news:fcb480ce-e285-47c4-87dc-8a9257583974 o7g2000prn.googlegroups.com...
On Feb 4, 11:55 am, John Doe j... usenetlove.invalid wrote:
Is there such a calculation/formula? How can you tell what
propeller to use, how fast it should rotate, and how much weight
it can push along the ground?

Specifically... I would like to tell what sort and size of
propeller rotating at what speed, in calm air to push 100 or 200
pounds on smooth and level pavement with zero rolling resistance
to about 20 mph.


20 mph is too fast for taxying. What are you asking about -zero
rolling resistance????

Cheers



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From: "Brent" b_philion hotmail.com
Newsgroups: rec.aviation.military,rec.aviation.piloting,rec.av iation.homebuilt
Subject: Taxi calculator? (propeller type and speed, aircraft weight, taxi speed)
Date: Sat, 5 Feb 2011 08:56:39 -0500
Organization: A noiseless patient Spider
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