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Old Dec 10, 2012, 05:19 PM
444 kph
scorpion-fan's Avatar
Joined Nov 2008
514 Posts


first benchtest with about 8.000 watts was okay (was only the small 4235 sized motor)
reached 13.200 rpm without problems.

afaik stefan still has some of these crazy middle parts available.
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Old Dec 10, 2012, 05:21 PM
What is Highspeed ?
Rolf D.'s Avatar
Germany, BY, Bergen
Joined Feb 2011
526 Posts
[QUOTE=scorpion-fan;23493402]

first benchtest with about 8.000 watts was okay (was only the small 4235 sized motor)
reached 13.200 rpm without problems.

afaik stefan still has some of these crazy middle parts available.[/QUOTE

great work done
I like it :-)
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Old Dec 10, 2012, 05:33 PM
Inglish Nub
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Joined May 2012
150 Posts
What the holy !!! Ralph why you tease us with such killer-pics :'(.... Thats unfair.
Middlepart and prop is availlible but no motor (((
€: My little 3520 wants some company
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Old Dec 10, 2012, 06:46 PM
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United States, CA, San Diego
Joined Dec 1999
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Another example from the 80s

Steve
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Old Dec 10, 2012, 07:13 PM
Aka: Tom Jenkins
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Palm Beach County, Fl.
Joined Aug 2008
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I would like to see the spinner!
Tom
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Old Dec 10, 2012, 11:48 PM
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grobbins666's Avatar
Huntington Beach So. Cal
Joined Jul 2008
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Quote:
Originally Posted by sneu View Post
Another example from the 80s

Steve
I wonder if the blades have variable pitch?
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Old Dec 11, 2012, 12:05 AM
I am actually really slow
SlowBarless's Avatar
Brisbane
Joined Jun 2008
970 Posts
Quote:
Originally Posted by scorpion-fan View Post

afaik stefan still has some of these crazy middle parts available.
Reckon an 8 blade sawtooth would look pretty cool

Really nice work man, will we be getting a video?
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Old Dec 11, 2012, 05:38 AM
"The Judge"
sebbe's Avatar
Sweden
Joined Feb 2006
5,817 Posts
scorpion-fan , how is the performance/thrust/pitchspeed when compared to 6/4/3/2 blades, whats the curve: rpm, thrust, efficency ? is there any, Im very interested in that sort of comparison with same blades but only difference is how many of them..
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Old Dec 11, 2012, 07:45 AM
Inglish Nub
Tzeentech's Avatar
Joined May 2012
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Quote:
Originally Posted by SlowBarless View Post
Reckon an 8 blade sawtooth would look pretty cool

Really nice work man, will we be getting a video?
Idea is cool but I think they explode at the power needed for this setup to be fast. And for an 8 blade setup u need plenty for sure. But the looks would be killer
Reminds me a bit on this : http://jamesbond007.net/Images/seadrill.jpg
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Old Dec 11, 2012, 08:49 AM
444 kph
scorpion-fan's Avatar
Joined Nov 2008
514 Posts
it was made for having fun and for show, not for breaking records!
definately not my fastest prop. but the must unusual.
will look very cool in front of harpyoe or peregrin or big typhoon.
may be also with 11x20 blades on it.
and will be good enough to get minimum 100m/s with an unbelievable noise and also fast climbing.

there is cold and snowy outside, in flight tests have to wait untill next spring.
but it will work - as the 5 blade 11x20 and 12x24 have worked just this year.
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Old Dec 11, 2012, 09:07 AM
I am actually really slow
SlowBarless's Avatar
Brisbane
Joined Jun 2008
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Quote:
Originally Posted by Tzeentech View Post
Idea is cool but I think they explode at the power needed for this setup to be fast. And for an 8 blade setup u need plenty for sure. But the looks would be killer
Reminds me a bit on this : http://jamesbond007.net/Images/seadrill.jpg
I think it might be something worth experimenting with regardless. It may not break speed records due to max power limitations but It would be incredibly quiet and efficient. Possibly something for UAV's.

Whats the chances of getting one of those yokes?
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Old Dec 11, 2012, 09:30 AM
Inglish Nub
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Just pm Markus Koch he can help you for sure .
Ralph you have to post more videos . That should be your New Year's resolution
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Old Dec 11, 2012, 09:57 AM
444 kph
scorpion-fan's Avatar
Joined Nov 2008
514 Posts
Quote:
Whats the chances of getting one of those yokes?
very good I think.
email to Stefan Baier *baierstefan at nexgo dot de*
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Last edited by scorpion-fan; Dec 11, 2012 at 11:16 AM.
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Old Dec 11, 2012, 05:17 PM
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Canada, SK, Prince Albert
Joined Jan 2006
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VIDEO VIDEO VIDEO.....man I want to hear that thing

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Old Dec 11, 2012, 05:28 PM
The props of tomorrow
Varna , Bulgaria
Joined Feb 2007
960 Posts
Latest version of GM F5D folders is now available. Size is 9x21.5". Improved design for more efficiency over the previous versions. Available as a set with 30mm spinner or as blades only.
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