Today's Message Index:
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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
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| Subject: | Re: Best glide speed RV6A |
Thanks, a useful article.
Doug
Sent from my iPad
> On 26 May 2015, at 11:51 am, ianxbrown <ixb@videotron.ca> wrote:
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> Jack Dueck wrote a great article on testing your best glide speed. I've attached
a copy.
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> Read this topic online here:
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> http://forums.matronics.com/viewtopic.php?p=442559#442559
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> Attachments:
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> http://forums.matronics.com//files/best_glide_speed_176.pdf
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Message 2
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| Subject: | 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 <ixb@videotron.ca> 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
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| Subject: | Re: Glide ratio, was Re: Best glide speed RV6A |
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
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| Subject: | Re: Best glide speed RV6A |
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
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| Subject: | 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
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| Subject: | Re: Best glide speed RV6A |
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, <kboatright1@comcast.net> <kboatright1@comcast.net>
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.
>
>
>
>
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