lml@lancaironline.net Mailing List Archive

Strakes I have flown many Lancair Turbines with and without strakes. I have found that the planes are much more stable with a strake and are recommended. I however do not recommend the Mike Custard strake as it adds quite a bit of drag to the airplane as they are not aligned with the airflow very well. The best solution is a simple single straight down strake of at least 8 1/2 inches at the rudder intersection. This produces no drag and stops more yaw than Mikes double strake. It is possible to have a good configuration without a strake as I have flown one that did not require it at all. This was a Lancair firewall forward version. My .02 Barney Britton IVPT -----Original Message----- From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Berni Sent: Monday, June 27, 2011 10:16 AM To: lml@lancaironline.net Subject: [LML] Re: Ventral Strakes, do they reduce performance? I converted my normally aspirated Lancair IV to a Turbine. The airplane flew great before the conversion but with the turbine I experienced some attention getting tail wagging especially on take off in gusty conditions. After a considerable number of failed attempts to correct this issue I bought a Mike Custard strake and installed it. The strake eliminated my problem with no other modifications needed. I highly recommend that you look at this solution. I believe you will be most satisfied. Sent from my iPad Berni Breen Bbreen@cableone.net On Jun 27, 2011, at 6:34 AM, RONALD STEVENS <ronald@sdc.com> wrote: > Hello guys > > Me again, I just had my first lesson with the Lancair 4p (with JC) and when I took off the plane was wiggling its tail like a happy dog LOL Nothing scary, but this I can imagine could be annoying for passengers. > > Now I was looking on the internet and found that Ventral Strakes were used to fight against those 'yaw' effects. > It suppose to help with turbulence, go-arrounds, full power take offs as well. > > My very near future plane (we are almost closing ;) is a newer one, so the tail section was already updated to the latest. > > But looking at my passengers (I fly with my Son and Girlfriend a lot) this could be disturbing for them and I was already thinking of installing the Yaw damper (I have the tru-trak sorcerer) and perhaps also installing those Ventral strakes. > > Does anybody have experience (before and after) with those? And would you recommend those? > > Thanks � Ronald Stevens (Cirrus 1100 hours, Velocity 250 hours, Lancair 4p student now with 1 hour LOL) -- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html ----- No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1388 / Virus Database: 1513/3728 - Release Date: 06/26/11