Today's Message Index:
----------------------
1. 07:37 AM - Re: RV-List Digest: 9 Msgs - 02/26/08 (glen matejcek)
2. 09:01 AM - Density altitude take-off charts (Ralph E. Capen)
3. 09:59 AM - 5th Annual Leeward Air Ranch Invitational Fly in (Esten Spears)
4. 10:26 AM - Re: Density altitude take-off charts (Larry Pardue)
5. 11:33 AM - Re: tanks (Louis Willig)
6. 12:06 PM - Re: Density altitude take-off charts (Ralph E. Capen)
7. 12:54 PM - Re: tanks (Konrad L. Werner)
8. 02:28 PM - Re: Density altitude take-off charts (Louis Willig)
Message 1
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| Subject: | RE: RV-List Digest: 9 Msgs - 02/26/08 |
> >> I may be slow, but I am stupid.... <<
>
> Wow, a double whammy! lol
> Tim Bryan
> RV-6
>
> Do Not Archive
Oh, I'm full of it... er... them.
glen matejcek
aerobubba@earthlink.net
Message 2
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| Subject: | Density altitude take-off charts |
Does anyone have a Density Altitude chart for their RV?
There was discussion of an attached one in the archives but I couldn't find it.
One of the sites alluded to in the archive post had an odd-looking chart telling
us to add xxx percent to our take-off distance.
I'm figuring that during my fly-off period, I'll be determining my normal take-off
distance and could build a Density Altitude chart for my POH.
Granted, with 180hp available, the calculations should come out OK for every place
that I would fly from.....however, I think this is something that should be
in my POH......
Ralph Capen
Doing paperwork during the weekdays and airplane building on the weekends!
Message 3
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| Subject: | 5th Annual Leeward Air Ranch Invitational Fly in |
Plan to visit us on your way to Sun n Fun! Tell your fellow RVators about
it!
Leeward RVators are planning The 5th Annual INVITATIONAL RV FLY-IN for
Saturday, April 5, 2008. If you are interested in attending please send an
e-mail to Esten Spears giving Names, Address, RV Type, and if not flying
your RV in; Mode of arrival. Esten will respond with an invitation
containing Event,
Flying, and Driving Information. Keep in mind that this is BY INVITATION
ONLY.
Richard Dayton is the Event Manager. If you have further questions he can
be contacted at rdayton34472@comcast.net
Send your e-mail to Esten at: ewspears@comcast.net
Esten Spears, Leeward Air Ranch
9127 SE 72nd Avenue
Ocala, FL 34472
352-347-3523
Message 4
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| Subject: | Re: Density altitude take-off charts |
There is a Koch Chart at http://www.nappf.com/nappf_density_altitude.htm
To use the chart you do need to have the performance for standard
conditions.
Larry Pardue
On Feb 27, 2008, at 9:53 AM, Ralph E. Capen wrote:
> <recapen@earthlink.net>
>
> Does anyone have a Density Altitude chart for their RV?
>
> There was discussion of an attached one in the archives but I
> couldn't find it.
>
> One of the sites alluded to in the archive post had an odd-looking
> chart telling us to add xxx percent to our take-off distance.
>
> I'm figuring that during my fly-off period, I'll be determining my
> normal take-off distance and could build a Density Altitude chart
> for my POH.
>
> Granted, with 180hp available, the calculations should come out OK
> for every place that I would fly from.....however, I think this is
> something that should be in my POH......
>
> Ralph Capen
> Doing paperwork during the weekdays and airplane building on the
> weekends!
>
>
Message 5
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At 11:46 AM 2/26/2008, you wrote:
>
>And there are zero fumes left in the tank.
>
>
>This condition is not possible unless there has never been any fuel in the
>tank.
>
>And I've seen more then one person have a booming experience believing it
>was possible.
Wheeler,
Thanks for the post. Actually, I removed the latent fumes by setting
the open tank outside overnight at 20 degrees. In the morning, I
brought the tank into a warm hangar. By setting it on its end, the
cool fumes (whatever were left) fell through the fuel filler opening
as the warm air displaced them through the open fuel pick-up opening.
A few seconds of compressed air in the other direction ( filler cap
off, and air vent pinched off) destroyed any pockets. I did this
again the next day.
Cost nothing, very effective, not very time consuming. I thought
about using dry ice last week but setting it inside the tank would
destroy the painted skin (too cold). I thought about filling the tank
with water, also. This would work well, but I didn't know the
downside of this option. But, again, thanks for the safety tip.
-
Louis I Willig
1640 Oakwood Dr.
Penn Valley, PA 19072
610 668-4964
RV-4, N180PF
190HP IO-360, C/S prop
Message 6
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| Subject: | Re: Density altitude take-off charts |
Thanks for the responses and pointers to the Koch charts. I'll be developing the
standard day info for my 6A during the 40 hour fly-off before I go to out of
the way places.
My home base is elevation 30' so I think i'll be OK unless it's over 120 degrees
out........
-----Original Message-----
>From: Larry Pardue <n5lp@warpdriveonline.com>
>Sent: Feb 27, 2008 1:22 PM
>To: rv-list@matronics.com
>Subject: Re: RV-List: Density altitude take-off charts
>
>
>There is a Koch Chart at http://www.nappf.com/nappf_density_altitude.htm
>
>To use the chart you do need to have the performance for standard
>conditions.
>
>Larry Pardue
>
>
>On Feb 27, 2008, at 9:53 AM, Ralph E. Capen wrote:
>
>> <recapen@earthlink.net>
>>
>> Does anyone have a Density Altitude chart for their RV?
>>
>> There was discussion of an attached one in the archives but I
>> couldn't find it.
>>
>> One of the sites alluded to in the archive post had an odd-looking
>> chart telling us to add xxx percent to our take-off distance.
>>
>> I'm figuring that during my fly-off period, I'll be determining my
>> normal take-off distance and could build a Density Altitude chart
>> for my POH.
>>
>> Granted, with 180hp available, the calculations should come out OK
>> for every place that I would fly from.....however, I think this is
>> something that should be in my POH......
>>
>> Ralph Capen
>> Doing paperwork during the weekdays and airplane building on the
>> weekends!
>>
>>
>>
>>
>>
>>
>
>
Message 7
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I'd simply purge the tank with a very good dose of an inert gas like
nitrogen to displace any gasoline fumes out through the openings... Make
sure YOU still have breathable air for your lungs though!!!
I would definitely NOT use water, as it is an enemy in any fuel tank...
----- Original Message -----
From: Louis Willig
To: rv-list@matronics.com
Sent: Wednesday, February 27, 2008 12:27 PM
Subject: Re: RV-List: tanks
At 11:46 AM 2/26/2008, you wrote:
>
>And there are zero fumes left in the tank.
>
>
>This condition is not possible unless there has never been any fuel
in the
>tank.
>
>And I've seen more then one person have a booming experience
believing it
>was possible.
Wheeler,
Thanks for the post. Actually, I removed the latent fumes by setting
the open tank outside overnight at 20 degrees. In the morning, I
brought the tank into a warm hangar. By setting it on its end, the
cool fumes (whatever were left) fell through the fuel filler opening
as the warm air displaced them through the open fuel pick-up opening.
A few seconds of compressed air in the other direction ( filler cap
off, and air vent pinched off) destroyed any pockets. I did this
again the next day.
Cost nothing, very effective, not very time consuming. I thought
about using dry ice last week but setting it inside the tank would
destroy the painted skin (too cold). I thought about filling the tank
with water, also. This would work well, but I didn't know the
downside of this option. But, again, thanks for the safety tip.
-
Louis I Willig
1640 Oakwood Dr.
Penn Valley, PA 19072
610 668-4964
RV-4, N180PF
190HP IO-360, C/S prop
Message 8
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| Subject: | Re: Density altitude take-off charts |
Ralph,
As you imply, an RV-4-6-7-8 with 180 hp will take off of most fields
and D/A conditions you will probably ever encounter with relative
ease. After spending a lot of time in a C150 at 6000-7000 ft altitude
airports, my RV-4 makes take-offs seem a dream come true. BUT,
landings should always be an item to consider at high D/A's.
Interestingly, so will "go arounds". They will be a little different.
But the power is there to use. Be positive and smooth on a go around
if things get dicey at high D/A's.
> >> Does anyone have a Density Altitude chart for their RV?
>
>
> >> Granted, with 180hp available, the calculations should come out OK
> >> for every place that I would fly from.....however, I think this is
> >> something that should be in my POH......
> >>
> >> Ralph Capen
> >> Doing paperwork during the weekdays and airplane building on the
> >> weekends!
Louis I Willig
1640 Oakwood Dr.
Penn Valley, PA 19072
610 668-4964
RV-4, N180PF
190HP IO-360, C/S prop
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