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drwer2
Joined: 24 Sep 2008
Posts: 41
Location: Squaw Valley, CA
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 Posted: Wed Nov 05, 2008 9:03 pm Post subject: 680F cruise performance |
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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
[quote][b]
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yourtcfg(at)aol.com
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| Posted: Wed Nov 05, 2008 11:10 pm Post subject: 680F cruise performance |
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Above 10K, 200kts (at)55GPH. jb
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rcdettmer(at)charter.net
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| Posted: Thu Nov 06, 2008 6:48 am Post subject: 680F cruise performance |
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I flight plan 10K to 12K at 190 knots true, and 52 to 55 gph in my 680F.
Randy Dettmer, AIA, NCARB
680F / N6253X
[img]cid:image001.gif(at)01C93FD9.08744320[/img]
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(at)matronics.com [mailto:owner-commander-list-server(at)matronics.com] On Behalf Of yourtcfg(at)aol.com
Sent: Wednesday, November 05, 2008 11:10 PM
To: commander-list(at)matronics.com
Subject: Re: 680F cruise performance
Above 10K, 200kts (at)55GPH. jb
--
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drwer2
Joined: 24 Sep 2008
Posts: 41
Location: Squaw Valley, CA
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| Posted: Thu Nov 06, 2008 7:04 am Post subject: 680F cruise performance |
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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 <rcdettmer(at)charter.net> wrote:
[quote]From: Randy Dettmer, AIA <rcdettmer(at)charter.net>
Subject: RE: 680F cruise performance
To: commander-list(at)matronics.com
Date: Thursday, November 6, 2008, 6:29 AM
I flight plan 10K to 12K at 190 knots true, and 52 to 55 gph in my 680F.
Randy Dettmer, AIA, NCARB
680F / N6253X
[img]cid:1.2307093209(at)web35502.mail.mud.yahoo.com[/img]
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(at)matronics.com [mailto:owner-commander-list-server(at)matronics.com] On Behalf Of yourtcfg(at)aol.com
Sent: Wednesday, November 05, 2008 11:10 PM
To: commander-list(at)matronics.com
Subject: Re: 680F cruise performance
Above 10K, 200kts (at)55GPH. jb
--
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cogito ergo aero-geek |
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moe-rosspistons(at)hotmai
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| Posted: Thu Nov 06, 2008 7:20 am Post subject: 680F cruise performance |
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Hi Willis,
I have a 680Fp which is the same as a 680F except that it has all of the pressurization equipment in the back. If you have enough oxygen fly between 16,000 and 18,000 ft., 100' f lean of peak, about 180 to 190 knots true air speed at about 42/44 gallons per hour. Do not try to fly below about 11,000 feet or your fuel burn will be 55 gallons per hour or more. If you feel uncomfortable flying lean of peak (which many do) then go 100 rich of peak and your fuel burn will be slightly more of course. Sometimes, running that much lean of peak causes the engines to run a little rough, however, you are so lean that the cyl temps will be cool and the engine basically "can't hurt its self".
Moe Mills
Proud Holder of The Golden Pedal Award
N680RR
680Fp
From: willis robison (drwer2(at)yahoo.com)
Sent: Wednesday, November 05, 2008 8:58 PM
To: commander-list(at)matronics.com (commander-list(at)matronics.com)
Subject: 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
[quote]
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
href='3D"http://www.matronics.com/contribution"'>http://www.matronics.com/contribution
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href='3D"http://www.matronics.com/Navigator?Commander-List"'>http://www.matronics.com/Navigator?Commander-List
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
href='3D"http://forums.matronics.com"'>http://forums.matronics.com
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
[b]
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moe-rosspistons(at)hotmai
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| Posted: Thu Nov 06, 2008 7:25 am Post subject: 680F cruise performance |
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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 (drwer2(at)yahoo.com)
Sent: Thursday, November 06, 2008 7:01 AM
To: commander-list(at)matronics.com (commander-list(at)matronics.com)
Subject: RE: 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 <rcdettmer(at)charter.net> wrote:
[quote]From: Randy Dettmer, AIA <rcdettmer(at)charter.net>
Subject: RE: 680F cruise performance
To: commander-list(at)matronics.com
Date: Thursday, November 6, 2008, 6:29 AM
I flight plan 10K to 12K at 190 knots true, and 52 to 55 gph in my 680F.
Randy Dettmer, AIA, NCARB
680F / N6253X
[img]cid:A7D32A2C69E144168FC9BC3D87E21C76(at)moemills1[/img]
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(at)matronics.com [mailto:owner-commander-list-server(at)matronics.com] On Behalf Of yourtcfg(at)aol.com
Sent: Wednesday, November 05, 2008 11:10 PM
To: commander-list(at)matronics.com
Subject: Re: 680F cruise performance
Above 10K, 200kts (at)55GPH. jb
--
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drwer2
Joined: 24 Sep 2008
Posts: 41
Location: Squaw Valley, CA
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| Posted: Thu Nov 06, 2008 7:48 am Post subject: 680F cruise performance |
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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 <moe-rosspistons(at)hotmail.com> wrote:
[quote]From: Moe-rosspistons <moe-rosspistons(at)hotmail.com>
Subject: Re: 680F cruise performance
To: commander-list(at)matronics.com
Date: Thursday, November 6, 2008, 7:24 AM
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 (drwer2(at)yahoo.com)
Sent: Thursday, November 06, 2008 7:01 AM
To: commander-list(at)matronics.com (commander-list(at)matronics.com)
Subject: RE: 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 <rcdettmer(at)charter.net> wrote:
[quote]From: Randy Dettmer, AIA <rcdettmer(at)charter.net>
Subject: RE: 680F cruise performance
To: commander-list(at)matronics.com
Date: Thursday, November 6, 2008, 6:29 AM
I flight plan 10K to 12K at 190 knots true, and 52 to 55 gph in my 680F.
Randy Dettmer, AIA, NCARB
680F / N6253X
[img]cid:1.2307430467(at)web35504.mail.mud.yahoo.com[/img]
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(at)matronics.com [mailto:owner-commander-list-server(at)matronics.com] On Behalf Of yourtcfg(at)aol.com
Sent: Wednesday, November 05, 2008 11:10 PM
To: commander-list(at)matronics.com
Subject: Re: 680F cruise performance
Above 10K, 200kts (at)55GPH. jb
--
| | - The Matronics Commander-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Commander-List |
|
| Description: |
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4498 Time(s) |
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_________________
No Generality is worth a damn....including this one.
cogito ergo aero-geek |
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| Back to top |
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moe-rosspistons(at)hotmai
Guest
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| Posted: Thu Nov 06, 2008 8:14 am Post subject: 680F cruise performance |
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Willis,
I generally never fly in class "A" airspace, therefore I can't say with authority. When I first purchased the plane about 10 years ago I tried flying in the the low 20's and it didn't seem to be worth the trouble. Since my bird is pressurized the oxygen tank is only 22 cubic feet which seems to last about an hour with four people and pressurized flight above about 21,000 ft. (can't remember exactly) is prohibited by placard, so the downsides of higher flight generally outnumber the upsides. The exception to my self imposed 17,999 foot rule is to get over weather and then descend ASAP.
Moe
From: willis robison (drwer2(at)yahoo.com)
Sent: Thursday, November 06, 2008 7:45 AM
To: commander-list(at)matronics.com (commander-list(at)matronics.com)
Subject: Re: 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 <moe-rosspistons(at)hotmail.com (moe-rosspistons(at)hotmail.com)> wrote:
[quote]From: Moe-rosspistons <moe-rosspistons(at)hotmail.com>
Subject: Re: 680F cruise performance
To: commander-list(at)matronics.com
Date: Thursday, November 6, 2008, 7:24 AM
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 (drwer2(at)yahoo.com)
Sent: Thursday, November 06, 2008 7:01 AM
To: commander-list(at)matronics.com (commander-list(at)matronics.com)
Subject: RE: 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 <rcdettmer(at)charter.net> wrote:
[quote]From: Randy Dettmer, AIA <rcdettmer(at)charter.net>
Subject: RE: 680F cruise performance
To: commander-list(at)matronics.com
Date: Thursday, November 6, 2008, 6:29 AM
I flight plan 10K to 12K at 190 knots true, and 52 to 55 gph in my 680F.
Randy Dettmer, AIA, NCARB
680F / N6253X
[img]cid:B2FAEC6D8DF943349A4AFB68E5F1CA85(at)moemills1[/img]
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(at)matronics.com [mailto:owner-commander-list-server(at)matronics.com] On Behalf Of yourtcfg(at)aol.com
Sent: Wednesday, November 05, 2008 11:10 PM
To: commander-list(at)matronics.com
Subject: Re: 680F cruise performance
Above 10K, 200kts (at)55GPH. jb
--
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http://www.matronics.com/Navigator?Commander-List |
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moe-rosspistons(at)hotmai
Guest
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| Posted: Thu Nov 06, 2008 8:18 am Post subject: 680F cruise performance |
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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 (drwer2(at)yahoo.com)
Sent: Thursday, November 06, 2008 7:45 AM
To: commander-list(at)matronics.com (commander-list(at)matronics.com)
Subject: Re: 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 <moe-rosspistons(at)hotmail.com (moe-rosspistons(at)hotmail.com)> wrote:
[quote]From: Moe-rosspistons <moe-rosspistons(at)hotmail.com>
Subject: Re: 680F cruise performance
To: commander-list(at)matronics.com
Date: Thursday, November 6, 2008, 7:24 AM
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 (drwer2(at)yahoo.com)
Sent: Thursday, November 06, 2008 7:01 AM
To: commander-list(at)matronics.com (commander-list(at)matronics.com)
Subject: RE: 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 <rcdettmer(at)charter.net> wrote:
[quote]From: Randy Dettmer, AIA <rcdettmer(at)charter.net>
Subject: RE: 680F cruise performance
To: commander-list(at)matronics.com
Date: Thursday, November 6, 2008, 6:29 AM
I flight plan 10K to 12K at 190 knots true, and 52 to 55 gph in my 680F.
Randy Dettmer, AIA, NCARB
680F / N6253X
[img]cid:6C979A4034BF4B8DAC157AC9B7D60D03(at)moemills1[/img]
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(at)matronics.com [mailto:owner-commander-list-server(at)matronics.com] On Behalf Of yourtcfg(at)aol.com
Sent: Wednesday, November 05, 2008 11:10 PM
To: commander-list(at)matronics.com
Subject: Re: 680F cruise performance
Above 10K, 200kts (at)55GPH. jb
--
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drwer2
Joined: 24 Sep 2008
Posts: 41
Location: Squaw Valley, CA
|
| Posted: Thu Nov 06, 2008 9:04 am Post subject: 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 <moe-rosspistons(at)hotmail.com> wrote:
[quote]From: Moe-rosspistons <moe-rosspistons(at)hotmail.com>
Subject: Re: 680F cruise performance
To: commander-list(at)matronics.com
Date: Thursday, November 6, 2008, 8:17 AM
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 (drwer2(at)yahoo.com)
Sent: Thursday, November 06, 2008 7:45 AM
To: commander-list(at)matronics.com (commander-list(at)matronics.com)
Subject: Re: 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 <moe-rosspistons(at)hotmail.com (moe-rosspistons(at)hotmail.com)> wrote:
[quote]From: Moe-rosspistons <moe-rosspistons(at)hotmail.com>
Subject: Re: 680F cruise performance
To: commander-list(at)matronics.com
Date: Thursday, November 6, 2008, 7:24 AM
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 (drwer2(at)yahoo.com)
Sent: Thursday, November 06, 2008 7:01 AM
To: commander-list(at)matronics.com (commander-list(at)matronics.com)
Subject: RE: 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 <rcdettmer(at)charter.net> wrote:
[quote]From: Randy Dettmer, AIA <rcdettmer(at)charter.net>
Subject: RE: 680F cruise performance
To: commander-list(at)matronics.com
Date: Thursday, November 6, 2008, 6:29 AM
I flight plan 10K to 12K at 190 knots true, and 52 to 55 gph in my 680F.
Randy Dettmer, AIA, NCARB
680F / N6253X
[img]cid:1.2308029379(at)web35508.mail.mud.yahoo.com[/img]
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(at)matronics.com [mailto:owner-commander-list-server(at)matronics.com] On Behalf Of yourtcfg(at)aol.com
Sent: Wednesday, November 05, 2008 11:10 PM
To: commander-list(at)matronics.com
Subject: Re: 680F cruise performance
Above 10K, 200kts (at)55GPH. jb
--
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No Generality is worth a damn....including this one.
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barry.collman(at)air-brit
Guest
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| Posted: Thu Nov 06, 2008 10:22 am Post subject: 680F cruise performance |
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Hi Willis,
What's the Serial Number or "N" number of this former survey Commander?
And, where's it being ferried from and to?
Best Regards,
Barry
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drwer2
Joined: 24 Sep 2008
Posts: 41
Location: Squaw Valley, CA
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| Posted: Thu Nov 06, 2008 12:32 pm Post subject: 680F cruise performance |
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I dont have the SN, but the tail No. is ZK-CDK of new zealand. I havent decided to purchase it yet, Im still adding up all the expenses.
It may be cheaper just to immigrate to NZ. Lovely place....and I really like the ocean too.
wer
--- On Thu, 11/6/08, Barry Collman <barry.collman(at)air-britain.co.uk> wrote:
[quote]From: Barry Collman <barry.collman(at)air-britain.co.uk>
Subject: Re: 680F cruise performance
To: commander-list(at)matronics.com
Date: Thursday, November 6, 2008, 10:22 AM
Hi Willis,
What's the Serial Number or "N" number of this former survey Commander?
And, where's it being ferried from and to?
Best Regards,
Barry
[quote] ---
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No Generality is worth a damn....including this one.
cogito ergo aero-geek |
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barry.collman(at)air-brit
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| Posted: Thu Nov 06, 2008 12:45 pm Post subject: 680F cruise performance |
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Hi Willis,
OK - thanks for letting me know.
As you know, it's a 680F, s/n 1289-132.
So, that makes it the 1289th production Commander and the 132nd 680F built.
It's been in New Zealand all its life, apart from an initial registration of N78395 and with just the one owner too, although they have had a couple of name changes and was initially owned jointly with the New Zealand Land & Survey Department
Was initially Certificated August 23rd 1963.
Should imagine it's been a well-maintained example, so sincerely hope everything works out well for you.
If you'd like a suitable note endorsing its purchase to show "her indoors" . . . just ask 
Very Best Regards,
Barry
P.S. I think Bert Berry has also asked which one you are ferrying.
He's a good source of info for me and he'll respect the privacy of the info if you tell him.
[quote] ---
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drwer2
Joined: 24 Sep 2008
Posts: 41
Location: Squaw Valley, CA
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| Posted: Thu Nov 06, 2008 1:03 pm Post subject: 680F cruise performance |
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Thanks Barry, Ive copied him on this reply.
Ill let you know if it comes together.
So far, it appears to be very well taken care of, with few real issues. one engine is near TBO but doesnt appear to have any issues at all. It may take the whole "village" to bring this one home. As you can imagine, the shortes and least expensive route is the friendliest, but the most unforgiving. The path "most traveled by", is almost 20k mi with more political (and military) obstacles than environmental ones.
I dont have my hopes up yet; I prefer to let the numbers fall where they may.
thanks
wer
--- On Thu, 11/6/08, Barry Collman <barry.collman(at)air-britain.co.uk> wrote:
[quote]From: Barry Collman <barry.collman(at)air-britain.co.uk>
Subject: Re: 680F cruise performance
To: commander-list(at)matronics.com
Date: Thursday, November 6, 2008, 12:45 PM
Hi Willis,
OK - thanks for letting me know.
As you know, it's a 680F, s/n 1289-132.
So, that makes it the 1289th production Commander and the 132nd 680F built.
It's been in New Zealand all its life, apart from an initial registration of N78395 and with just the one owner too, although they have had a couple of name changes and was initially owned jointly with the New Zealand Land & Survey Department
Was initially Certificated August 23rd 1963.
Should imagine it's been a well-maintained example, so sincerely hope everything works out well for you.
If you'd like a suitable note endorsing its purchase to show "her indoors" . . . just ask
Very Best Regards,
Barry
P.S. I think Bert Berry has also asked which one you are ferrying.
He's a good source of info for me and he'll respect the privacy of the info if you tell him.
[quote] ---
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No Generality is worth a damn....including this one.
cogito ergo aero-geek |
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wjrhamilton(at)optusnet.c
Guest
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| Posted: Fri Nov 07, 2008 4:48 am Post subject: 680F cruise performance |
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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(at)matronics.com [mailto:owner-commander-list-server(at)matronics.com] On Behalf Of willis robison
Sent: Friday, November 07, 2008 4:04 AM
To: commander-list(at)matronics.com
Subject: Re: 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 <moe-rosspistons(at)hotmail.com> wrote:
From: Moe-rosspistons <moe-rosspistons(at)hotmail.com>
Subject: Re: 680F cruise performance
To: commander-list(at)matronics.com
Date: Thursday, November 6, 2008, 8:17 AM
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 (drwer2(at)yahoo.com)
Sent: Thursday, November 06, 2008 7:45 AM
To: commander-list(at)matronics.com (commander-list(at)matronics.com)
Subject: Re: 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 <moe-rosspistons(at)hotmail.com (moe-rosspistons(at)hotmail.com)> wrote:
From: Moe-rosspistons <moe-rosspistons(at)hotmail.com>
Subject: Re: 680F cruise performance
To: commander-list(at)matronics.com
Date: Thursday, November 6, 2008, 7:24 AM
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 (drwer2(at)yahoo.com)
Sent: Thursday, November 06, 2008 7:01 AM
To: commander-list(at)matronics.com (commander-list(at)matronics.com)
Subject: RE: 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 <rcdettmer(at)charter.net> wrote:
| Quote: |
From: Randy Dettmer, AIA <rcdettmer(at)charter.net>
Subject: RE: 680F cruise performance
To: commander-list(at)matronics.com
Date: Thursday, November 6, 2008, 6:29 AM
I flight plan 10K to 12K at 190 knots true, and 52 to 55 gph in my 680F.
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Randy Dettmer, AIA, NCARB
680F / N6253X
[img]cid:image001.gif(at)01C94133.50059350[/img]
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(at)matronics.com [mailto:owner-commander-list-server(at)matronics.com] On Behalf Of yourtcfg(at)aol.com
Sent: Wednesday, November 05, 2008 11:10 PM
To: commander-list(at)matronics.com
Subject: Re: 680F cruise performance
Above 10K, 200kts (at)55GPH. jb
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