---------------------------------------------------------- Commander-List Digest Archive --- Total Messages Posted Fri 11/07/08: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:48 AM - Re: 680F cruise performance (Bill Hamilton) 2. 09:08 AM - Flight Levels magazine - Fall 2008 issue (Barry Collman) 3. 05:12 PM - Re: Flight Levels magazine - Fall 2008 issue (yourtcfg@aol.com) 4. 06:56 PM - Re: Flight Levels magazine - Fall 2008 issue (willis robison) ________________________________ Message 1 _____________________________________ Time: 04:48:51 AM PST US From: "Bill Hamilton" Subject: RE: Commander-List: 680F cruise performance Guys, Have a look at ferrying around the Pacific rim, Kamchatka, Aleutians, Alaska, quite a few use it now, when the weather is right, 690's can do it on standard tanks. Hilo to anywhere on the California coast is a long stretch, about 2200nm. Cheers, Bill Hamilton From: owner-commander-list-server@matronics.com [mailto:owner-commander-list-server@matronics.com] On Behalf Of willis robison Sent: Friday, November 07, 2008 4:04 AM Subject: Re: Commander-List: 680F cruise performance Well, there will be ferry tanks for fuel and oil. The size of which depends upon the route taken. This is a special ferry operation that will have extended tracks over long stretches of either water or some "not-so hospitable" territory. My initial estimate is for another 100 gal fuel and 20 gal oil. (780+ lbs) so the initial TOW may be near max. Naturally a more benign route would make this a lot easier. All Diamonds start out "In-The Rough".....its what you put into them that make them shine. wer --- On Thu, 11/6/08, Moe-rosspistons wrote: From: Moe-rosspistons Subject: Re: Commander-List: 680F cruise performance Willis, One further thought. Your plane will be MUCH lighter than N680RR. With all of the "stuff" that it has, most flights are made at near gross weight (about 8,000 lbs.), and the observations made in these emails are based on this. Your plane should be a rocket compared to N680RR Moe From: willis robison Sent: Thursday, November 06, 2008 7:45 AM Subject: Re: Commander-List: 680F cruise performance Thanks Moe, makes a lot of sense. I would think that an IGSO engine swinging +90" props would want to live where they are most efficient. no chance of +18k? the supposed service ceiling is in the mid to uppper 20's I thought. Im looking at a bare plane, no interior as its a former aerial survey craft. wer --- On Thu, 11/6/08, Moe-rosspistons wrote: From: Moe-rosspistons Subject: Re: Commander-List: 680F cruise performance Willis, Your plane wants to fly its best at 16,000 to 18,000 ft. Anything below this altitude and the fuel compsuntion vs. distance traveled suffers. The one exception is if the headwind at 10,000 is mild and the headwind at 18,000 is bad. Moe From: willis robison Sent: Thursday, November 06, 2008 7:01 AM Subject: RE: Commander-List: 680F cruise performance Thanks Randy, JB. Thats sounds reasonable for a low-level flight. Do you guys every fly on oxy? I would think your economy would be much better at a higher altitude. And with oodles of power to get there quickly, it should be a snap. I guess with the Time to climb and then let down, that may not be cost-effective. wer --- On Thu, 11/6/08, Randy Dettmer, AIA wrote: From: Randy Dettmer, AIA Subject: RE: Commander-List: 680F cruise performance I flight plan 10K to 12K at 190 knots true, and 52 to 55 gph in my 680F. Randy Dettmer, AIA, NCARB 680F / N6253X Dettmer Architecture 663 Hill Street San Luis Obispo, CA 93405 805 541 4864 / Fax 805 541 4865 www.dettmerarchitecture.com _____ From: owner-commander-list-server@matronics.com [mailto:owner-commander-list-server@matronics.com] On Behalf Of yourtcfg@aol.com Sent: Wednesday, November 05, 2008 11:10 PM Subject: Re: Commander-List: 680F cruise performance Above 10K, 200kts @55GPH. jb -----Original Message----- From: willis robison Sent: Wed, 5 Nov 2008 8:58 pm Subject: Commander-List: 680F cruise performance Gentlemen, Are there any active members that own a AC 680F? Im estimating a ferry flight and need the best altitude/fuel burn and could really use your experience. thanks. wer > _____ http://www.matronics.com/contribution < span> ________________________________ Message 2 _____________________________________ Time: 09:08:36 AM PST US From: "Barry Collman" Subject: Commander-List: Flight Levels magazine - Fall 2008 issue Hi Guys, On page 7 of the subject magazine there's a photo of N2621B, a Commander 520 s/n 133. The text says it's powered by "a pair of geared Lycoming 520-cubic-inch GO-435-C2B engines". Has anyone else spotted the (not deliberate) error? Best Regards, Barry ________________________________ Message 3 _____________________________________ Time: 05:12:35 PM PST US Subject: Re: Commander-List: Flight Levels magazine - Fall 2008 issue From: yourtcfg@aol.com Yep, I saw that too.? Maybe they should have you proof the next ome!!? jb The text says it's powered by "a pair of geared Lycoming 520-cubic-inch GO-435-C2B engines". -----Original Message----- From: Barry Collman Sent: Fri, 7 Nov 2008 9:08 am Subject: Commander-List: Flight Levels magazine - Fall 2008 issue Hi Guys, ? On page 7 of the subject magazine there's a photo of N2621B, a Commander 520 s/n 133. ? The text says it's powered by "a pair of geared Lycoming 520-cubic-inch GO-435-C2B engines". ? Has anyone else spotted the (not deliberate) error? ? Best Regards, Barry ________________________________ Message 4 _____________________________________ Time: 06:56:15 PM PST US From: willis robison Subject: Re: Commander-List: Flight Levels magazine - Fall 2008 issue Well, if "ome" has 520 ci then they would produce 2x380x520/435 = 908 hp. - Wow, I wonder what the GTOW-would be!? - I've always been curious about the wing/loading for these AC.- They all h ave relatively the same wing structure. (longer wingtip for the 680/560's) yet with bigger engines, the FAA allowed higher gross weights.-- Was Ae ro Design able to argue that the original design was (under powered) or ove r designed?- Which was it and at what HP/gross is the maximum? - - - --- On Fri, 11/7/08, yourtcfg@aol.com wrote: From: yourtcfg@aol.com Subject: Re: Commander-List: Flight Levels magazine - Fall 2008 issue Yep, I saw that too.- Maybe they should have you proof the next ome!!- jb The text says it's powered by "a pair of geared Lycoming 520-cubic-inch GO- 435-C2B engines". -----Original Message----- From: Barry Collman Sent: Fri, 7 Nov 2008 9:08 am Subject: Commander-List: Flight Levels magazine - Fall 2008 issue Hi Guys, - On page 7 of the subject magazine there's a photo of N2621B, a Commander 52 0 s/n 133. - The text says it's powered by "a pair of geared Lycoming 520-cubic-inch GO- 435-C2B engines". - Has anyone else spotted the (not deliberate) error? - Best Regards, Barry =0A=0A=0A ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message commander-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Commander-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/commander-list Browse Digests http://www.matronics.com/digest/commander-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.