I though of trying it, but I don't have a flying KR at the moment. I planned on using some plastic T shaped stock that is available at hobby stores and putting it on temporarily with double faced tape. I plan on doing it on my M1 one of these days when I get a chance.
I think it is worth giving it a shot with the cheap temporary method, but I would not expect to get spectacular results. The KR already has a very low stall speed and really good low speed flying characteristics, especially for the cruise speed it has. Brian Kraut Engineering Alternatives, Inc. www.engalt.com -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On Behalf Of JAMES C FERRIS Sent: Sunday, December 18, 2005 3:00 PM To: kr...@mylist.net Subject: Re: KR> Vortex gen Vortex generators, if located in the correct position will not decrease the cruise speed. for most airfols the vortex generators are placed far enough back on the chord that the boundary layer is already turbulent and it will energize the boundary layer by mixing high energy air from outside the boundary layer into the boundary layer, when this happens the length of attached flow is extended further aft on the airfoil and the drag is reducedbecause of reduced seperation drag, even in cruise. On a laminar flow airfoil like the new KR airfoil you would want to place the vortex generators near the transition point to avoid increased drag from the vortex generators. My six bits worth Jim On Sun, 18 Dec 2005 13:07:50 -0500 Jerry Mahurin <krje...@gmail.com> writes: > Vortex generators are just that.......they generate vortex > turblance.....on > any aerodynamic surface... True they will lower stall speed when > used on > wings but at a sacrafice of TOP speed. Of course you can increase > your > CRUISE speed by pushing it up a little closer to your reduced TOP > speed. > But your CRUISE RPM will have to go up some to maintain the same > cruise > SPEED.... There ain't no such thing as a free lunch and the laws > of > aerodynamics are consistent..... > > Personally.......If I wanted to go slower, I would build a slower > airplane > instead of glueing little pieces of plastic all over a good looking > one...... > > my two cents worth for what it is worth..02 cents...... > > Keep on keeping on.... > > On 12/18/05, phil brookman <p...@ntlworld.com> wrote: > > > > very interesting has anyone done it ,cos it sure does look very > beneficial > > in fact i cannot see a down side , on this side of the pond a > kolb > > ultrastar > > seems to be doing quite well , and theyseemm to be well proven > > phil > > ----- Original Message ----- > > From: "Colin Rainey" <brokerpilot9...@earthlink.net> > > To: <kr...@mylist.net> > > Sent: Sunday, December 18, 2005 2:27 AM > > Subject: KR> Vortex gen > > > > > > > No but I bet these guys wanting to fly slow could really benefit > from > > the > > speed reduction of their stall speed with them. > > > > > > I have considered testing them out on our KR, as they gauruntee > them to > > work with no reduction in cruise speeds. I believe the Cirrus > SR20 and > > SR22 > > are also using them, as well as the Eagle 150. I point these out > because > > they are fast composite planes like the KR. > > > > > > > > > Colin Rainey > > > brokerpilot9...@earthlink.net > > > EarthLink Revolves Around You. > > > _______________________________________ > > > Search the KRnet Archives at > http://www.maddyhome.com/krsrch/index.jsp > > > to UNsubscribe from KRnet, send a message to > krnet-le...@mylist.net > > > please see other KRnet info at http://www.krnet.org/info.html > > > > > > > > > -- > > > No virus found in this incoming message. > > > Checked by AVG Free Edition. > > > Version: 7.1.371 / Virus Database: 267.14.1/206 - Release Date: > > 16/12/2005 > > > > > > > > > > ---------------------------------------- > > I am using the free version of SPAMfighter for private users. > > It has removed 24619 spam emails to date. > > Paying users do not have this message in their emails. > > Try www.SPAMfighter.com for free now! > > > > > > > > -- > > No virus found in this outgoing message. > > Checked by AVG Free Edition. > > Version: 7.1.371 / Virus Database: 267.14.1/206 - Release Date: > 16/12/2005 > > > > > > _______________________________________ > > Search the KRnet Archives at > http://www.maddyhome.com/krsrch/index.jsp > > to UNsubscribe from KRnet, send a message to > krnet-le...@mylist.net > > please see other KRnet info at http://www.krnet.org/info.html > > > > > > -- > Jerry Mahurin - aka - KRJerry > EAA# 0034283 > Lugoff, SC 29078 > _______________________________________ > Search the KRnet Archives at > http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > > _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
