Matronics Email Lists Forum Index Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
 
 Get Email Distribution Too!Get Email Distribution Too!    FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Bicamber prop technology and Paul Lipps

 
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> Europa-List
View previous topic :: View next topic  
Author Message
gcrowder2



Joined: 09 Jan 2006
Posts: 136
Location: Golden, Colorado USA

PostPosted: Wed Oct 15, 2008 8:19 am    Post subject: Bicamber prop technology and Paul Lipps Reply with quote

  Here's some interesting propeller developments from a company called Bicamber Technology.  They claim to have a new airfoil design thats much
more efficient C using a concave section behind the maximum camber point
on both sides of the blade.
 http://www.bicambertechnology.com/
 
But in a recent test between a two blade Bicamber shaped foil and the Paul Lipps designed 3 blade Ellipse C the Lipps prop proved significantly more efficient.  Reposted from the Rotary Eng list:
 
Hi Paul and group.

I brought the subject of bicamber tech. So with a little research I got
theses data for the group to share. Please note that Paul Lipps is
working with Catto and Bicamber tech as specified on this link. This
Jim Smith was introduced to me by Paul Lipps.
http://www.biplaneaerobatics.com/elippse 

Marc Joseph

Hi Marc C
I have been flying an Elippse 3 blade propeller (Designed by Paul
Lipps) on my 150hp RV-6 for
one year now.
Last June I tested a 2 blade propeller (Designed and built by Fred
Felix) that had the same tip shape
as my Elippse and also incorporated the Bi-Camber Technology.
Below are the flight test numbers at 4 C000 Palt and 10 C000 Palt for
both props.

4 C000 Palt RPM IAS(mph) TAS(mph)
Effective pitch
Bi-Camber 2 C778 170.8
183.5 69.7"
Elippse 2 C740 180.8
193 74.4 " 18% more efficient

10 C000 Palt
Bi-Camber 2 C695 149
177.5 69.5"
Elippse
2 C655 157.6 184.4 73.3" 14%
more efficient

Rate of Climb 2 C000 to 10 C000 Palt
Bi-Camber Avg. 774 fpm
Elippse Avg 916 fpm
The above numbers are an average of several test flights. Higher
speeds with fewer RPM and
a better rate of climb for the Elippse prop.

Gross T.O. Weight for all flights 1 C440 lbs.

I am marketing the Elippse propeller (for Paul) for the Experimental
aircraft. If I can be of any further help C
please get back with me.

Thanks for the inquiry and intrest C
Jim Smith

See how Windows connects the people C information C and fun that are part of your life. See Now [quote][b]


- The Matronics Europa-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List
Back to top
View user's profile Send private message
DannyBo
Guest





PostPosted: Fri Apr 09, 2021 3:06 am    Post subject: Re: Bicamber prop technology and Paul Lipps Reply with quote

The issues of man-made reasoning have been of worry to mankind for over 10 years. In the course of recent years, humankind has taken extraordinary steps in this issue. In any case, this is as yet insufficient for flawlessness. Be that as it may, no different either way, the advancement of man-made reasoning is as of now in our current circumstance. Take Speech Recognition innovation. A well known innovation now that is utilized in an assortment of devices and fiends of humanity.

- The Matronics Europa-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List
Back to top
Display posts from previous:   
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> Europa-List All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group