HobbyKing.com New Products Flash Sale
 
Thread Tools
Old Mar 03, 2004, 07:01 PM
Sven Goosen
Guest
n/a Posts
what does x * x mean for a prop?

Hi all,

I've never used a prop for models before, now i was looking on the site from
my local RC store, and the size (i think) is indicated like this:

7 x 6 prop
or
9 x 5 prop

What do these values mean? i think it has something to do with lengt/angle
of the blades?

And how much thrust difference is there between a 3 bladed prop and a 2
bladed?

Many thanks,
Sven


Old Mar 03, 2004, 07:01 PM
Efulmer
Guest
n/a Posts
Re: what does x * x mean for a prop?

Sven, The first number is the diameter/length and the second number is the
pitch. As for 2 and 3 blade props it all depends on the pitch and diameter.
Hopr this helps. Eddie Fulmer
Old Mar 03, 2004, 07:01 PM
Gerry Attric
Guest
n/a Posts
Re: what does x * x mean for a prop?

The first number is the diameter the second the pitch which is the
theoretical distance the prop would screw itself forward in one revolution
(if the air didn't move as well)
Ian

"Sven Goosen" <sven@goosen-demon.nl> wrote in message
news:104c2n6684amb79@corp.supernews.com...
> Hi all,
>
> I've never used a prop for models before, now i was looking on the site

from
> my local RC store, and the size (i think) is indicated like this:
>
> 7 x 6 prop
> or
> 9 x 5 prop
>
> What do these values mean? i think it has something to do with lengt/angle
> of the blades?
>
> And how much thrust difference is there between a 3 bladed prop and a 2
> bladed?
>
> Many thanks,
> Sven
>
>



 


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Question What does x% expo mean? Cirip Modeling Science 37 Aug 16, 2010 02:19 PM
EPS,EPP,BluCor and what does 1# density mean? Balin Foamies (Kits) 0 Apr 24, 2002 06:35 PM
What does the CE symbol mean Ben Lanterman Electric Plane Talk 2 Feb 28, 2002 06:34 PM
What does run dry mean? twinster2 Electric Ducted Fan Jet Talk 2 Feb 14, 2002 07:33 PM
what does the black dot mean breadboy Electric Plane Talk 3 Sep 13, 2001 10:28 PM