Today's Message Index:
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1. 02:24 PM - Best gliud, 6A ()
2. 02:41 PM - Re: Best gliud, 6A (Kyle Boatright)
3. 03:13 PM - Re: Best gliud, 6A (RV6 Flyer)
4. 03:46 PM - 6A gross wt ()
5. 05:31 PM - Re: 6A gross wt (vanremog@aol.com)
6. 06:35 PM - Re: 6A gross wt (Kelly McMullen)
7. 08:15 PM - Re: 6A gross wt (Charlie England)
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When I first got Tweetybird 11 yrs ago I experimented with various best gli
de speeds, prety much thought 80mph best. I have flight review coming up, n
eed to know if that is number most use ? Thanks Charlie
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| Subject: | Re: Best gliud, 6A |
The CAFE foundation tested a 6a about 15 years ago and determined a best gli
de of right at 100 mph.
That is what I use.
Sent from my iPhone
> On Nov 21, 2015, at 5:23 PM, <cheathco@cox.net> wrote:
>
> When I first got Tweetybird 11 yrs ago I experimented with various best gl
ide speeds, prety much thought 80mph best. I have flight review coming up, n
eed to know if that is number most use ? Thanks Charlie
> This email has been sent from a virus-free computer
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| Subject: | Re: Best gliud, 6A |
On my RV-6, Best Glide and Best Rate of climb are the same. 78 KIAS is wh
at works best in my RV-6.
On 11-21-2015 5:23 PM, cheathco@cox.net<mailto:cheathco@cox.net> wrote:
When I first got Tweetybird 11 yrs ago I experimented with various best gli
de speeds, prety much thought 80mph best. I have flight review coming up, n
eed to know if that is number most use ? Thanks Charlie
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something I have wondered about but never asked. My plane builder listed th
e GW at 1650, empty is 1080, but I had seen other ones at 1750. I have been
told the 6a has safely carried up to 1850, even tho GW at 1750. I once unk
nowingly carried a psg who later told me he weighed 235lb, didn't look it,
but landed much harder that usual. I usually carry 200 lb psr max with full
fuel and min baggage. Over that I usually carry 3/4 to 1/2 fuel.
as a mater of fact I have not had anyone with me over 150 lb for past 2 yea
rs.. I have weighed 185 for several years. And at 75 that is not easy to do
=2E BTW, knowing that Art xxxx racing in cherokee 140 used to carry his
psgr in back seat, so when I did my first race I had 80 lb of batteries in
bagage which gave me extra 5mph. Hope to get to bottom of this gross thing
=2E Yhanks, Charlie
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I established and tested for 1900 lb utility gross weight with thirty hours
on the Hobbs under the following condition, because I wanted to ensure ade
quate margin for cross country flights loaded up with baggage.
I weighed 185 lb at the time and my 241 lb buddy was along in case he neede
d to grab one of the two 50 lb bags of sand out of the baggage area and hol
d it in his lap. We worked our way up to this point slowly and performed a
ll of our stalls and landings. I have an O-360-A1A and constant speed prop
.
The plane handled fine throughout the flight but I carried a little more sp
eed on landing just in case. I'm not sure I would fly it to empty tanks th
ough. An arm of 75.73 is right at 27% MAC. YMMV.
Aircraft at Gross Weight
Weight
Arm
Moment
Basic Aircraft
1151
69.02
79438
38 gal Fuel in Wing Tanks
228
70.00
15960
Pilot and Passenger
421
87.40
36795.4
Baggage Area
100
117.00
11700
TOTAL
1900
75.73
143893.4
-GV
-----Original Message-----
From: cheathco <cheathco@cox.net>
Sent: Sat, Nov 21, 2015 3:47 pm
Subject: RV-List: 6A gross wt
something I have wondered about but never asked. Myplane builder listed the
GW at 1650, empty is 1080, but I had seen otherones at 1750. I have been t
old the 6a has safely carried up to 1850, even tho GWat 1750. I once unknow
ingly carried a psg who later told me he weighed 235lb,didn=C2=92t look it,
but landed much harder that usual. I usually carry 200 lb psrmax with full
fuel and min baggage. Over that I usually carry 3/4 to 1/2fuel.
as a mater of fact I have not had anyone with meover 150 lb for past 2 year
s.. I have weighed 185 for several years. And at 75that is not easy to do.
BTW, knowing that Art xxxx racingin cherokee 140 used to carry his psgr
in back seat, so when I did my first raceI had 80 lb of batteries in bagage
which gave me extra 5mph. Hope to get tobottom of this gross thing. Yhank
s, Charlie
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As I understand it, you are pretty much stuck with what the original
builder asked for. I don't know what a DAR would have to do to get you a
changed gross wt.
On 11/21/2015 4:45 PM, cheathco@cox.net wrote:
> something I have wondered about but never asked. My plane builder
> listed the GW at 1650, empty is 1080, but I had seen other ones at
> 1750. I have been told the 6a has safely carried up to 1850, even tho
> GW at 1750. I once unknowingly carried a psg who later told me he
> weighed 235lb, didnt look it, but landed much harder that usual. I
> usually carry 200 lb psr max with full fuel and min baggage. Over
> that I usually carry 3/4 to 1/2 fuel.
> as a mater of fact I have not had anyone with me over 150 lb for past
> 2 years.. I have weighed 185 for several years. And at 75 that is not
> easy to do. Smile emoticon BTW, knowing that Art xxxx racing in
> cherokee 140 used to carry his psgr in back seat, so when I did my
> first race I had 80 lb of batteries in bagage which gave me extra
> 5mph. Hope to get to bottom of this gross thing. Yhanks, Charlie
> <https://www.avast.com/?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
> This email has been sent from a virus-free computer protected by Avast.
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>
Message 7
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Unless there has been a very recent change in the regs, the owner can
raise gross weight by treating it as a major modification. Depending on
which version of operating limitations are on the plane, it could be as
simple as logging a return to phase one, flying 5 hrs of tests at the
increased gross weight, and logging the successful results with a return
to phase two (normal operation). Newer versions require notifying the
local FSDO & getting their approval for the proposed test area (which
might well be the same as the original test area).
Not saying anyone should; just that it can be done. As mentioned, there
are lots of 6's & 6A's with higher than 1600 lb gross weights in their
oplims.
Tangentially related to the subject of best glide, Van once wrote an
article about best climb rate in the short wing RV's. He indicated that
due to increased induced drag of the low aspect ratio wing at low
airspeeds, the 4/6/7/8 would climb at almost identical rates at anywhere
between around 90 mph & 130 mph (rough numbers from my flaky memory).
His suggestion was for normal (not obstacle clearance) climb to be at
around 130 mph because the rate would be the same but a lot more ground
could be covered. I've never bothered to test it, but it seems
reasonable that a slightly higher speed might extend the *range* of a
glide, as well.
Charlie
On 11/21/2015 8:33 PM, Kelly McMullen wrote:
>
> As I understand it, you are pretty much stuck with what the original
> builder asked for. I don't know what a DAR would have to do to get you
> a changed gross wt.
>
> On 11/21/2015 4:45 PM, cheathco@cox.net wrote:
>> something I have wondered about but never asked. My plane builder
>> listed the GW at 1650, empty is 1080, but I had seen other ones at
>> 1750. I have been told the 6a has safely carried up to 1850, even tho
>> GW at 1750. I once unknowingly carried a psg who later told me he
>> weighed 235lb, didnt look it, but landed much harder that usual. I
>> usually carry 200 lb psr max with full fuel and min baggage. Over
>> that I usually carry 3/4 to 1/2 fuel.
>> as a mater of fact I have not had anyone with me over 150 lb for past
>> 2 years.. I have weighed 185 for several years. And at 75 that is not
>> easy to do. Smile emoticon BTW, knowing that Art xxxx racing in
>> cherokee 140 used to carry his psgr in back seat, so when I did my
>> first race I had 80 lb of batteries in bagage which gave me extra
>> 5mph. Hope to get to bottom of this gross thing. Yhanks, Charlie
>> <https://www.avast.com/?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
>> This email has been sent from a virus-free computer protected by
>> Avast.
>> www.avast.com
>> <https://www.avast.com/?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
>>
>>
>
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