---------------------------------------------------------- RV-List Digest Archive --- Total Messages Posted Tue 05/26/15: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:53 AM - Re: Re: Best glide speed RV6A (Doug Gray) 2. 06:52 AM - Re: Re: Best glide speed RV6A (Warren Brecheisen) 3. 07:20 AM - Glide ratio, was Re: Best glide speed RV6A (GLEN MATEJCEK) 4. 10:28 AM - Re: Best glide speed RV6A (drholling) 5. 03:41 PM - Re: Re: Best glide speed RV6A () 6. 10:54 PM - Re: Re: Best glide speed RV6A (Doug Gray) ________________________________ Message 1 _____________________________________ Time: 02:53:02 AM PST US Subject: Re: RV-List: Re: Best glide speed RV6A From: Doug Gray Thanks, a useful article. Doug Sent from my iPad > On 26 May 2015, at 11:51 am, ianxbrown wrote: > > > Jack Dueck wrote a great article on testing your best glide speed. I've attached a copy. > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=442559#442559 > > > > > Attachments: > > http://forums.matronics.com//files/best_glide_speed_176.pdf > > > > > > > ________________________________ Message 2 _____________________________________ Time: 06:52:15 AM PST US From: "Warren Brecheisen" Subject: RE: RV-List: Re: Best glide speed RV6A On my RV-6 the rate of descent data indicated a maximum endurance true airspeed of about 70 knots and maximum range of about 85 knots. Warren -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Doug Gray Sent: Tuesday, May 26, 2015 4:52 AM Subject: Re: RV-List: Re: Best glide speed RV6A Thanks, a useful article. Doug Sent from my iPad > On 26 May 2015, at 11:51 am, ianxbrown wrote: > > > Jack Dueck wrote a great article on testing your best glide speed. I've attached a copy. > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=442559#442559 > > > > > Attachments: > > http://forums.matronics.com//files/best_glide_speed_176.pdf > > > > > > > ________________________________ Message 3 _____________________________________ Time: 07:20:52 AM PST US Subject: RV-List: Glide ratio, was Re: Best glide speed RV6A From: GLEN MATEJCEK Hi Guys- I took a look at the cited article and noticed a technical issue. Aside from some cross-border, or perhaps more likely cross-bureaucracy diction issues, the article implies that glide ratio varies with aircraft weight. As I'm sure most will recall, glide ratio is a function of form and speed. Changing the aircraft weight will result in a corresponding change in the speed at which best L/D occurs, but not the value of that ratio (not to any practical, or perhaps even measurable extent). If interested, one can take a look at the Fed's Glider Handbook, Aerodynamics of Flight chapter, Glide Ratio section for a good refresher including a graphical explanation of the effect. https://www.faa.gov/regulations_policies/handbooks_manuals/aircraft/glider_handbook/media/gfh_ch03.pdf ________________________________ Message 4 _____________________________________ Time: 10:28:32 AM PST US Subject: RV-List: Re: Best glide speed RV6A From: "drholling" ianxbrown wrote: > Jack Dueck wrote a great article on testing your best glide speed. I've attached a copy. Are there more articles like this from Jack? He referenced one about airspeed in this one. Would be nice to see other Flight Test Cards from him. Dave -------- David Read this topic online here: http://forums.matronics.com/viewtopic.php?p=442577#442577 ________________________________ Message 5 _____________________________________ Time: 03:41:18 PM PST US From: Subject: Re: RV-List: Re: Best glide speed RV6A The CAF foundation did a comprehensive flight review of the RV-6(a) in 1993. Here's the link: http://cafefoundation.org/v2/pdf_cafe_apr/RV-6A%20Final%20APR.pdf Basically, it says 70 knots for lowest sink, 92 knots for best glide ratio. ________________________________ Message 6 _____________________________________ Time: 10:54:24 PM PST US Subject: Re: RV-List: Re: Best glide speed RV6A From: Doug Gray Kyle, thanks for this document. I think these will be more reliable figures than what I could measure & calculate even despite the difference in model. Mine being a 6. I am reading through the doc for any clues on their methodology. Doug Sent from my iPhone > On 27 May 2015, at 8:40 am, wrote: > > > The CAF foundation did a comprehensive flight review of the RV-6(a) in 1993. Here's the link: > > http://cafefoundation.org/v2/pdf_cafe_apr/RV-6A%20Final%20APR.pdf > > Basically, it says 70 knots for lowest sink, 92 knots for best glide ratio. > > > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/rv-list Browse Digests http://www.matronics.com/digest/rv-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.