banner
banner

11 Apr 2021, 05:37 [ UTC - 5; DST ]


Concorde Battery (banner)



Reply to topic  [ 13 posts ] 
Username Protected Message
 Post subject: Diamond DA62 "Golden Hour on the Continental Divide"
PostPosted: 15 Mar 2021, 21:07 
Offline


User avatar
 Profile

Joined: 01/09/14
Posts: 227
Post Likes: +112
Location: San Jose, CA (KRHV)
Aircraft: DA40
By Steve Zimmerman. Definitely not mine. ;)

http://youtu.be/3MDUoy_fOBo


Username Protected wrote:
The video starts just before sunset, running southbound along the Continental Divide south of Breckenridge at 13,000'. It ends with a time-lapse descent into the Denver metro area and a run northbound toward downtown Denver as the city lights take hold.

In the first sequence, after the turn eastbound you can see the high, snow-covered valley known as South Park at far right. Early in the time lapse sequence Pikes Peak is visible at far right, on the horizon; after a 270º turn northbound you can see Longs Peak at left on the horizon. The two Fourteeners are just under 100 miles apart.

More on Steve's YouTube channel: https://www.youtube.com/channel/UC81Dj-fEs6_qtRqcO7rVRvg


Top

 Post subject: Re: Diamond DA62 "Golden Hour on the Continental Divide"
PostPosted: 15 Mar 2021, 21:51 
Offline



User avatar
 WWW  Profile

Joined: 06/28/09
Posts: 11888
Post Likes: +6018
Location: Walnut Creek, CA (KCCR)
Aircraft: 1962 Twin Bonanza
Stunning, very cool!

_________________
http://calipilot.com
atp/cfii


Top

 Post subject: Re: Diamond DA62 "Golden Hour on the Continental Divide"
PostPosted: 17 Mar 2021, 16:04 
Offline

 WWW  Profile

Joined: 12/17/17
Posts: 3
Post Likes: +4
Location: KEIK
Aircraft: 1980 Bonanza A36
Username Protected wrote:
By Steve Zimmerman. Definitely not mine. ;)

http://youtu.be/3MDUoy_fOBo



More on Steve's YouTube channel: https://www.youtube.com/channel/UC81Dj-fEs6_qtRqcO7rVRvg


Thanks for posting this here, Chris. I also own an A36 Bonanza; tomorrow we’re flying both airplanes in a cover shoot for a national magazine. The A36 is the photo ship and the Diamond (which I’ll be flying) is the subject. I’m used to being the shooter rather than the subject; should be fun.

You can see more of my aviation photography on my website, https://www.stevezphoto.us


Top

 Post subject: Re: Diamond DA62 "Golden Hour on the Continental Divide"
PostPosted: 26 Mar 2021, 10:54 
Offline


 Profile

Joined: 05/25/11
Posts: 24
Post Likes: +2
Aircraft: E55
Good Stuff! Thanks for sharing. Ah the comfort of a twin.
:cheers:


Top

 Post subject: Re: Diamond DA62 "Golden Hour on the Continental Divide"
PostPosted: 27 Mar 2021, 11:34 
Offline


 Profile

Joined: 06/09/09
Posts: 4126
Post Likes: +2718
Aircraft: C182P, Merlin IIIC
Saw one of these up close today. Nice looking plane.


Top

 Post subject: Re: Diamond DA62 "Golden Hour on the Continental Divide"
PostPosted: 27 Mar 2021, 17:12 
Offline


 Profile

Joined: 02/15/21
Posts: 93
Post Likes: +32
Nice plane.

One odd thing though is that (according to the AFM I dowloaded from the manufacturer's website) if you have a dual alternator failure, you can expect the engines to stop in 30 minutes (when battery backup is exhausted). The engine control units apparently cannot function at all without electricity.


Top

 Post subject: Re: Diamond DA62 "Golden Hour on the Continental Divide"
PostPosted: 28 Mar 2021, 16:21 
Offline


User avatar
 Profile

Joined: 09/16/10
Posts: 8091
Post Likes: +1561
Username Protected wrote:
Nice plane.

One odd thing though is that (according to the AFM I downloaded from the manufacturer's website) if you have a dual alternator failure, you can expect the engines to stop in 30 minutes (when battery backup is exhausted). The engine control units apparently cannot function at all without electricity.


Seems it does, interesting. Is this what you are referring to?
>>> 3.3.1 page 101 of 508
(Referred to, on page 4B-20, section 4B.3.6)

http://support.diamond-air.at/fileadmin ... mplete.pdf

"(b) Both Alternators Failed
WARNING
If both alternators fail at the same time, reduce all electrical
equipment to a minimum. Expect battery power to last
30 minutes and land the airplane as soon as possible. Expect
engine stoppage after this period of time."


I guess the ECU's like to have operating current. Logical enough.

_________________
Don't ever leave your friends, wondering who their friends are.


Top

 Post subject: Re: Diamond DA62 "Golden Hour on the Continental Divide"
PostPosted: 28 Mar 2021, 17:29 
Offline



User avatar
 Profile

Joined: 04/26/13
Posts: 10792
Post Likes: +9031
Location: Columbus , IN (KBAK)
Aircraft: 1968 Baron D55
Username Protected wrote:
I guess the ECU's like to have operating current. Logical enough.

Logical enough, but is it necessary? Why not have a fail safe mode that leaves it at a pre-set power setting, say 75%? Lots of modern aircraft have FADEC and still revert to a crude manual control if the computer fails.

_________________
My last name rhymes with 'geese'.


Top

 Post subject: Re: Diamond DA62 "Golden Hour on the Continental Divide"
PostPosted: 28 Mar 2021, 18:39 
Offline


User avatar
 Profile

Joined: 01/28/13
Posts: 4704
Post Likes: +2653
Location: Indiana
Aircraft: C195, D17S, M20TN
Weird isnt it. While different if the FCU on a PT-66d quits the More control allows you to directly add fuel, carefully. This should be an interesting question as to why they aren’t creating enough power to burn the diesel... Where are the BT engineers ? The question lingers why the engine quits.

_________________
Chuck
KEVV


Top

 Post subject: Re: Diamond DA62 "Golden Hour on the Continental Divide"
PostPosted: 28 Mar 2021, 18:58 
Offline


 Profile

Joined: 12/24/17
Posts: 385
Post Likes: +331
Aircraft: A36
Maybe it doesn't have an engine driven fuel pump?


Top

 Post subject: Re: Diamond DA62 "Golden Hour on the Continental Divide"
PostPosted: 29 Mar 2021, 05:38 
Offline


 Profile

Joined: 02/15/21
Posts: 93
Post Likes: +32
Username Protected wrote:
Is this what you are referring to?

Yep. Kind of takes away the comfort of flying a twin, especially over water. Admittedly a dual alternator failure seems pretty unlikely, but so is a SETP engine failure. And I would not feel totally comfortable flying a SETP any appreciable distance over water.

On the DA42 they have a one-time-use lithium manganese primary battery backup system for the backup flight instruments (not sure what they use for this in the DA62). Maybe they could install a similar, larger primary battery backup system on the DA42 and DA62 to augment the rechargeable ECU backup batteries. I wonder how big a battery you would need to run the ECU's for, say, three hours?

When we're all flying electric planes this will become moot...


Top

 Post subject: Re: Diamond DA62 "Golden Hour on the Continental Divide"
PostPosted: 29 Mar 2021, 06:09 
Offline


 Profile

Joined: 02/15/21
Posts: 93
Post Likes: +32
I should point out that the main purpose of the ECU backup batteries is apparently to prevent the ECU's from dropping out and feathering the props in the event that the main battery is in a low charge state and the landing gear is retracted after takeoff, causing the main battery voltage to drop below a usable level for the ECU's. It appears to be a happy side effect that the ECU backup batteries (in conjunction with the main battery?) will power the ECU's for 30 minutes after a dual alternator failure.

The only thing I can conclude is that a dual alternator failure is thought to be so unlikely that (akin to a dual engine failure) there's no real plan to deal with it other than an (eventual) forced landing.


Top

 Post subject: Re: Diamond DA62 "Golden Hour on the Continental Divide"
PostPosted: 29 Mar 2021, 06:45 
Offline


 Profile

Joined: 11/03/08
Posts: 11142
Post Likes: +15366
Location: Stoke-on-Trent, UK
Aircraft: in storage
Username Protected wrote:
I guess the ECU's like to have operating current. Logical enough.

Logical enough, but is it necessary? Why not have a fail safe mode that leaves it at a pre-set power setting, say 75%? Lots of modern aircraft have FADEC and still revert to a crude manual control if the computer fails.

Hi John, you must be talking turbines. It's pretty easy to keep a turbine running - just continuously spray in some fuel.

A computer-controlled diesel engine has fuel injectors operated by a waveform, which is produced by the ECM. The ECM operates the electronic injectors at varying timing and duration depending on the maps it's programmed with. Usually, the waveform generator is integral with the ECM.

So there is no way to operate the injectors without the ECM. Generally these are extremely reliable, far more reliable than older diesels with mechanical injection pumps. Still, on many marine engines there are dual redundant ECM's with automatic failover.

In no case though, can you operate the ECM (and therefore the fuel injectors) without electricity.

as far as backup ecm operation, there are lots of implementations that vary from full redundancy to limp-home bare bones. The way I've been involved in these, it can be set to automatically fail-over or you can manually select one ECM or the other at this panel circled in red.

But again, this is in a boat. The whole idea starts to seem like a lot of weight and wiring on a light airplane.

Please login or Register for a free account via the link in the red bar above to download files.


Top

Display posts from previous:  Sort by  
Reply to topic  [ 13 posts ] 




You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  

Terms of Service | Forum FAQ | Contact Us

BeechTalk, LLC is the quintessential Beechcraft Owners & Pilots Group providing a forum for the discussion of technical, practical, and entertaining issues relating to all Beech aircraft. These include the Bonanza (both V-tail and straight-tail models), Baron, Debonair, Duke, Twin Bonanza, King Air, Sierra, Skipper, Sport, Sundowner, Musketeer, Travel Air, Starship, Queen Air, BeechJet, and Premier lines of airplanes, turboprops, and turbojets.

BeechTalk, LLC is not affiliated or endorsed by the Beechcraft Corporation, its subsidiaries, or affiliates. Beechcraft™, King Air™, and Travel Air™ are the registered trademarks of the Beechcraft Corporation.

Copyright© BeechTalk, LLC 2007-2021

.jandsaviation-85x50.jpg.
.ForeFlight_85x200.jpg.
.avfab-85x50-2018-12-04.png.
.instar.jpg.
.CiESVer2.jpg.
.pdi-85x50.jpg.
.blackhawk-85x100-2019-09-25.jpg.
.Summit_Logo_85x50.png.
.airpower-85x50.jpg.
.airmart-85x150.png.
.dshannon.jpg.
.planelogix-85x100-2015-04-15.jpg.
.temple-85x100-2015-02-23.jpg.
.Davis_Aviation_85x50.jpg.
.tat-85x100.png.
.methodseven-85x50.jpg.
.geebee-85x50.jpg.
.kadex-85x50.jpg.
.leadingedge-85x50.png.
.bpt-85x50-2019-07-27.jpg.
.ABS-85x100.jpg.
.bkool-85x50-2014-08-04.jpg.
.wilco-85x100.png.
.Flaremeter_85x50_v2.png.
.kingairdom.jpg.
.westsky.jpg.
.midwest2.jpg.
.kingairacademy-85x100.png.
.MountainAirframe.jpg.
.Rocky-Mountain-Turbine-85x100.jpg.
.saint-85x50.jpg.
.ei-85x150.jpg.
.STLAir_85x50.jpg.
.aircraftassociates-85x50.png.
.centex-85x50.jpg.
.greenwich-85x50-2020-08-10.jpg.
.avidyne-85x50-2017-11-22.jpg.
.McPeck_85x50.jpg.
.avionwealth-85x50.png.
.SCA.jpg.
.camguard.jpg.
.garmin-85x200-2021-03-08.jpg.
.gallagher_85x50.jpg.
.dbm.jpg.
.AAI.jpg.
.traceaviation-85x150.png.
.Latitude.jpg.
.southseas-85x50-2021.png.
.dynon-85x50.jpg.
.stanmusikame-85x50.jpg.
.truecourse.jpg.
.wat-85x50.jpg.
.chairmanaviation-85x50.jpg.
.sierratrax-85x50.jpg.
.Wentworth_85x100.JPG.
.aviationdesigndouble.jpg.
.airplanesusa-85x50.png.
.avionicssource-85x50.jpg.
.KalAir_Black.jpg.
.Expert_Aircraft_Solution_85x50.jpg.
.EagleFuelCellsTriple.jpg.
.tempest.jpg.
.cav-85x50.jpg.
.ps_engineering.gif.
.daytona.jpg.
.jetacq-85x50.jpg.
.rtc-85x200.jpg.
.concorde.jpg.
.Genesys_85x50.jpg.
.echelon-85x50.png.
.heartlandsm.jpg.
.Microkit_85x50.png.