Today's Message Index:
----------------------
1. 02:10 AM - Re: Kolb-List Digest: 10 Msgs - 09/27/12 (George Bearden)
2. 03:57 PM - Re: glide ratio (wakataka)
3. 04:17 PM - Re: glide ratio (Thom Riddle)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | RE: Kolb-List Digest: 10 Msgs - 09/27/12 |
> That`s the ratio I got, when I did the math. (96/1)
Based on my 2-stroke motorcycle experience of years ago, this sounds right
to me. I found that properly working oil injection saved a tremendous amount
of oil. It went so much farther that it became almost a non-issue.
GeoB
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
I measured the glide ratio of my original Firestar at this morning by shutting
down the engine at 400 feet agl on final and measuring the distance to touchdown
on Google Earth. I traveled 2500 feet with a 400 feet drop. It's just slightly
better than 6 to1. Airspeed was about 40 mph, which is seems to be close to
best L/D from what I can tell. The airplane was near max gross weight (550#).
It has a center section cover and streamlined lift stuts, which helps improve
the glide somewhat. Still, I wouldn't recommend a Kolb for a soaring contest.
--------
There is something fascinating about science. One gets such wholesale returns of
conjecture out of such a trifling investment of fact.
Mark Twain
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=384263#384263
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Waktaka,
Curious about your technique, so I have a couple questions and comments.
Did you stop the engine when you were flying at 40 mph or at a higher speed? If
it was at a higher speed then your glide ratio was actually less than what you
calculated because reducing the airspeed to 40 from whatever faster speed reduced
your sink rate during that speed reduction. Also, once in ground effect,
the glide ratio improves. This is why to get more accurate numbers one should
start the engine off glide at the presumed best glide speed and time the loss
of altitude while well above ground effect.
Just my 2 cents.
--------
Thom Riddle
Buffalo, NY (9G0)
Kolb Slingshot SS-021
Jabiru 2200A #1574
Diamond Katana DA20-A1
Rotax 912 F3
Don't worry about old age... it doesn't last very long.
- Anonymous
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=384268#384268
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|