---------------------------------------------------------- RV-List Digest Archive --- Total Messages Posted Wed 02/27/08: 8 ---------------------------------------------------------- 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 _____________________________________ Time: 07:37:21 AM PST US From: "glen matejcek" Subject: RV-List: 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 _____________________________________ Time: 09:01:00 AM PST US From: "Ralph E. Capen" Subject: RV-List: 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 _____________________________________ Time: 09:59:35 AM PST US From: "Esten Spears" Subject: RV-List: 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 _____________________________________ Time: 10:26:19 AM PST US From: Larry Pardue 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: > > > 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 _____________________________________ Time: 11:33:38 AM PST US From: Louis Willig 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 6 _____________________________________ Time: 12:06:07 PM PST US From: "Ralph E. Capen" Subject: Re: RV-List: 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 >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: > >> >> >> 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 _____________________________________ Time: 12:54:16 PM PST US From: "Konrad L. Werner" Subject: Re: RV-List: tanks 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 _____________________________________ Time: 02:28:30 PM PST US From: Louis Willig Subject: Re: RV-List: 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 ------------------------------------------------------------------------------------- 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.