banner
banner

31 Dec 2025, 04:50 [ UTC - 5; DST ]


Garmin International (Banner)



This topic is locked, you cannot edit posts or make further replies.  [ 7667 posts ]  Go to page Previous  1 ... 384, 385, 386, 387, 388, 389, 390 ... 512  Next
Username Protected Message
 Post subject: Re: Cirrus SF50
PostPosted: 07 Nov 2017, 11:10 
Offline


 WWW  Profile




Joined: 12/03/14
Posts: 20980
Post Likes: +26457
Company: Ciholas, Inc
Location: KEHR
Aircraft: C560V
Username Protected wrote:
However, Alan Klapmeier a long time ago commented on Eclipse and the original Kestrel that the planes were designed around the FAA standard adult. As such, the planes were too small, and could never sell.

That's easy to fix, hire really tiny models:
Attachment:
eclipse-tiny-people-1.png

Dang, the plane looks enormous.

Not sure if this was photoshopped, or those are really small people. Screen measurements put him at about 5 foot 5 inches.

Mike C.


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

_________________
Email mikec (at) ciholas.com


Top

 Post subject: Re: Cirrus SF50
PostPosted: 07 Nov 2017, 13:14 
Offline


User avatar
 Profile




Joined: 11/06/10
Posts: 12201
Post Likes: +3086
Company: Looking
Location: Outside Boston, or some hotel somewhere
Aircraft: None
Username Protected wrote:
But you're incorrect in the characterization of the IS&S panel architecture as "crap"--for many reasons, that's a false conclusion.

Ken,

Maybe crap was a little harsh :D
I was thinking of a few things. The crash or almost crash caused by throttle quadrants getting stuck by pushing to far.
All the custom FADEC teething and related issues.
Custom database....

Reality is, Garmin is proprietary in many ways. They just have the market share to be the "standard". As such, Eclipse was considered the odd ball.

A lot of the performance items you mentioned could likely have been solved a lot cheaper and helped sales by installing larger engines de-tuned to existing thrust levels. This increases available performance up higher.

Tim


Top

 Post subject: Re: Cirrus SF50
PostPosted: 07 Nov 2017, 13:34 
Offline


User avatar
 Profile




Joined: 01/30/08
Posts: 1262
Post Likes: +1166
Location: San Diego CA.
Username Protected wrote:
EA500 was certified under Part 23 amendment 55. I think that means the rule they worked with was FAR 23.53(b) from amendment 50, from 1996:

For normal, utility, and acrobatic category airplanes, the distance required to takeoff and climb to a height of 50 feet above the takeoff surface must be determined for each weight, altitude, and temperature within the operational limits established for takeoff with--
(1) Takeoff power on each engine;
(2) Wing flaps in the takeoff position(s); and
(3) Landing gear extended.


Definitely says all engines to 50 ft.

Thanks for pointing that out. Now I'm even more impressed with the SII as its numbers are definitely with an engine failure at V1.

Mike C.


Mike,

The Eclipse is the only jet certified under the same section of part 23 as piston twins under 6000#.

At the time of certification Eclipse argued that their airplane was so inexpensive it would be a Baron replacement and therefore should not be held to the same standard as the Baron. I don't believe the Eclipse even meets the climb requirements of the commuter category which is applied to piston twins over 6000#.

You won't find charts for balanced field, second segment, accelerate go etc in an Eclipse POH because it was never designed to climb out on a single engine.

In terms of engine failures during take-off the Eclipse is no better than a C-310.

_________________
Member 184


Top

 Post subject: Re: Cirrus SF50
PostPosted: 07 Nov 2017, 13:43 
Offline


User avatar
 Profile




Joined: 11/08/12
Posts: 12837
Post Likes: +5277
Location: Jackson, MS (KHKS)
Aircraft: 1961 Cessna 172
Username Protected wrote:
However, Alan Klapmeier a long time ago commented on Eclipse and the original Kestrel that the planes were designed around the FAA standard adult. As such, the planes were too small, and could never sell.

That's easy to fix, hire really tiny models:
Attachment:
eclipse-tiny-people-1.png

Dang, the plane looks enormous.

Not sure if this was photoshopped, or those are really small people. Screen measurements put him at about 5 foot 5 inches.

Mike C.


The taller woman suggests he’s short

Top

 Post subject: Re: Cirrus SF50
PostPosted: 07 Nov 2017, 14:13 
Offline


User avatar
 Profile




Joined: 03/01/11
Posts: 213
Post Likes: +106
Username Protected wrote:
The crash or almost crash caused by throttle quadrants getting stuck by pushing to far.
All the custom FADEC teething and related issues.

It's a Hispano-Suiza FADEC, very similar to what is used in the Mustang. Considered part of the engine actually.
Quote:
Custom database....Reality is, Garmin is proprietary in many ways. They just have the market share to be the "standard". As such, Eclipse was considered the odd ball.

I'll buy that, but are you really saying that nobody else should produce an FMS? What about all the Collins stuff, the Universal FMS's in the world, etc etc? I don't see that approach as very practical, and having lived through the "Silver Crown" era, I don't think it's good for aviation, either.
Quote:
A lot of the performance items you mentioned could likely have been solved a lot cheaper and helped sales by installing larger engines de-tuned to existing thrust levels.

That's what they're doing with the 700. The extra weight of the 615 (it's a lot heavier than the 610) is offset by making the fuselage longer, and the extra fuel burn necessitated the wing stub.

The 700 has some very nice performance numbers, but it doesn't really interest me since the existing design fits my needs very well, and I don't want to spend the extra money. [BTW, the existing plane is an extraordinary value right now on the secondary market.]

Ken


Top

 Post subject: Re: Cirrus SF50
PostPosted: 07 Nov 2017, 14:16 
Offline


User avatar
 Profile




Joined: 03/01/11
Posts: 213
Post Likes: +106
Username Protected wrote:
[The Eclipse] was never designed to climb out on a single engine...
In terms of engine failures during take-off the Eclipse is no better than a C-310.

Sorry, Jon, that's just incorrect. There is a different standard than the Part 25 climb requirement, but it's not zero climb and it's not the same as a piston twin.

If you want, I'll pull out the comparative requirements of the EA50 and the C310; or may Mike will and save me the effort :lol:.

Ken


Top

 Post subject: Re: Cirrus SF50
PostPosted: 07 Nov 2017, 14:22 
Offline


User avatar
 Profile




Joined: 02/10/12
Posts: 6712
Post Likes: +8238
Company: Minister of Pith
Location: Florida
Aircraft: Piper PA28/140
Username Protected wrote:
However, Alan Klapmeier a long time ago commented on Eclipse and the original Kestrel that the planes were designed around the FAA standard adult. As such, the planes were too small, and could never sell.

That's easy to fix, hire really tiny models:
Attachment:
eclipse-tiny-people-1.png

Dang, the plane looks enormous.

Not sure if this was photoshopped, or those are really small people. Screen measurements put him at about 5 foot 5 inches.

Mike C.

Perspective.
_________________
"No comment until the time limit is up."


Top

 Post subject: Re: Cirrus SF50
PostPosted: 07 Nov 2017, 14:29 
Offline


 Profile




Joined: 11/03/08
Posts: 17016
Post Likes: +28962
Location: Peachtree City GA / Stoke-On-Trent UK
Aircraft: A33
Username Protected wrote:
The taller woman suggests he’s short

or wealthy


Top

 Post subject: Re: Cirrus SF50
PostPosted: 07 Nov 2017, 15:31 
Offline


User avatar
 Profile




Joined: 01/30/08
Posts: 1262
Post Likes: +1166
Location: San Diego CA.
Username Protected wrote:
[The Eclipse] was never designed to climb out on a single engine...
In terms of engine failures during take-off the Eclipse is no better than a C-310.

Sorry, Jon, that's just incorrect. There is a different standard than the Part 25 climb requirement, but it's not zero climb and it's not the same as a piston twin.

If you want, I'll pull out the comparative requirements of the EA50 and the C310; or may Mike will and save me the effort :lol:.

Ken


Please do.

I never said part 25.

Please cite the climb standards to which the Eclipse was certified.
_________________
Member 184


Top

 Post subject: Re: Cirrus SF50
PostPosted: 07 Nov 2017, 15:51 
Offline


 Profile




Joined: 10/26/16
Posts: 476
Post Likes: +692
Username Protected wrote:
EA500 was certified under Part 23 amendment 55. I think that means the rule they worked with was FAR 23.53(b) from amendment 50, from 1996:

For normal, utility, and acrobatic category airplanes, the distance required to takeoff and climb to a height of 50 feet above the takeoff surface must be determined for each weight, altitude, and temperature within the operational limits established for takeoff with--
(1) Takeoff power on each engine;
(2) Wing flaps in the takeoff position(s); and
(3) Landing gear extended.


Definitely says all engines to 50 ft.

Thanks for pointing that out. Now I'm even more impressed with the SII as its numbers are definitely with an engine failure at V1.

Mike C.


Mike,

The Eclipse is the only jet certified under the same section of part 23 as piston twins under 6000#.

At the time of certification Eclipse argued that their airplane was so inexpensive it would be a Baron replacement and therefore should not be held to the same standard as the Baron. I don't believe the Eclipse even meets the climb requirements of the commuter category which is applied to piston twins over 6000#.

You won't find charts for balanced field, second segment, accelerate go etc in an Eclipse POH because it was never designed to climb out on a single engine.

In terms of engine failures during take-off the Eclipse is no better than a C-310.


Not so fast cowboy. Commuter category doesn't have anything to do with piston twins over 6000lb. And you missed the whole 61knots or above stall speed climb requirement even for twins under 6000lb.

But just to humor you, single engine service ceiling is 25,000 and the single engine rate of climb is 989fpm so in terms of engine failure during take-off Eclipse is considerably better than a C310. It will still do 700fpm on one at 5000ft +15C.

Top

 Post subject: Re: Cirrus SF50
PostPosted: 07 Nov 2017, 16:04 
Offline


User avatar
 Profile




Joined: 03/01/11
Posts: 213
Post Likes: +106
Jon, the issue is second segment climb gradient. The 310 doesn't have a requirement to climb at all in the second segment. By comparison, the Eclipse is not permitted to depart under any circumstance that would not provide at least for a 1.2% second segment climb gradient.

Under the FAR 23 rewrite, a level 2 high-speed aircraft must only meet 1.0% climb gradient, so the Eclipse actually exceeds the current requirement.

So, yes, the plane was indeed designed to climb with an engine out. One of the things we had to demonstrate in the simulator in order to pass the type rating was climbing out after engine loss at rotation with conditions set just right (high altitude airport and warm temperature) to generate the minimum allowable climb gradient.

Ken


Top

 Post subject: Re: Cirrus SF50
PostPosted: 07 Nov 2017, 16:08 
Offline


 Profile




Joined: 01/31/09
Posts: 5193
Post Likes: +3038
Location: Northern NJ
Aircraft: SR22;CJ2+;C510
Username Protected wrote:
So, yes, the plane was indeed designed to climb with an engine out. One of the things we had to demonstrate in the simulator in order to pass the type rating was climbing out after engine loss at rotation with conditions set just right (high altitude airport and warm temperature) to generate the minimum allowable climb gradient.

Ken


Always educational to see how little climb that is and the importance of maintaining V2.

_________________
Allen


Top

 Post subject: Re: Cirrus SF50
PostPosted: 07 Nov 2017, 17:23 
Offline


 WWW  Profile




Joined: 12/03/14
Posts: 20980
Post Likes: +26457
Company: Ciholas, Inc
Location: KEHR
Aircraft: C560V
Username Protected wrote:
Perspective.

If applied, means he is even shorter, since he is ahead of the wing and I used the wingspan as the reference for scale.

Mike C.

_________________
Email mikec (at) ciholas.com


Top

 Post subject: Re: Cirrus SF50
PostPosted: 07 Nov 2017, 18:03 
Offline


 WWW  Profile




Joined: 12/03/14
Posts: 20980
Post Likes: +26457
Company: Ciholas, Inc
Location: KEHR
Aircraft: C560V
Username Protected wrote:
The Eclipse is the only jet certified under the same section of part 23 as piston twins under 6000#.

Reference?

I looked up the Eclipse TCDS, and nothing in the basis suggests Eclipse got excused from FAR 23.67 requirements in effect per amendment 55.

Specifically 23.67(b):

(b) For normal, utility, and acrobatic category reciprocating engine-powered airplanes of more than 6,000 pounds maximum weight, and turbine engine-powered airplanes in the normal, utility, and acrobatic category--

(1) The steady gradient of climb at an altitude of 400 feet above the takeoff must be measurably positive with the--
(i) Critical engine inoperative and its propeller in the minimum drag position;
(ii) Remaining engine(s) at takeoff power;
(iii) Landing gear retracted;
(iv) Wing flaps in the takeoff position(s); and
(v) Climb speed equal to that achieved at 50 feet in the demonstration of Sec. 23.53.

(2) The steady gradient of climb must not be less than 0.75 percent at an altitude of 1,500 feet above the takeoff surface, or landing surface, as appropriate, with the--
(i) Critical engine inoperative and its propeller in the minimum drag position;
(ii) Remaining engine(s) at not more than maximum continuous power;
(iii) Landing gear retracted;
(iv) Wing flaps retracted; and
(v) Climb speed not less than 1.2


So the Eclipse has to be positive at 400 MSL flaps down, gear up, and be 0.75 gradient at 1500 MSL cleaned up.

Section (a) is piston under 6000 lbs, (c) is commuter category.

Quote:
At the time of certification Eclipse argued that their airplane was so inexpensive it would be a Baron replacement and therefore should not be held to the same standard as the Baron.

Got a reference for this? I've never seen an argument based on the price of the airplane used to chose different rules before. If this did happen, I feel certain it had to do with the weight and not the price.

Quote:
I don't believe the Eclipse even meets the climb requirements of the commuter category which is applied to piston twins over 6000#.

Pistons over 6000 lbs are also 23.67(b), not commuter category.

Quote:
You won't find charts for balanced field, second segment, accelerate go etc in an Eclipse POH because it was never designed to climb out on a single engine.

Maybe you meant "never required to demonstrate".

Quote:
In terms of engine failures during take-off the Eclipse is no better than a C-310.

If a "new" 310 was designed under the same rules, it would be under 23.67(a), not (b) that applies to the Eclipse.

If the FAA said Eclipse was under 23.67(a), I'd like to see some reference to that and how it came to be. I see no special conditions, equivalent level of safety, or exemptions on the TCDS that show that.

Mike C.

_________________
Email mikec (at) ciholas.com


Top

 Post subject: Re: Cirrus SF50
PostPosted: 07 Nov 2017, 20:29 
Offline


 Profile




Joined: 03/01/14
Posts: 2301
Post Likes: +2087
Location: 0TX0 Granbury TX
Aircraft: T-210M Aeronca 7AC
I love it! CPA is alive and well; still talking Eclipse and MU-2. :pilot: :D


Top

Display posts from previous:  Sort by  
This topic is locked, you cannot edit posts or make further replies.  [ 7667 posts ]  Go to page Previous  1 ... 384, 385, 386, 387, 388, 389, 390 ... 512  Next



PlaneAC

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 2007-2025

.blackhawk-85x100-2019-09-25.jpg.
.concorde.jpg.
.saint-85x50.jpg.
.bullardaviation-85x50-2.jpg.
.airmart-85x150.png.
.blackwell-85x50.png.
.MountainAirframe.jpg.
.tempest.jpg.
.planelogix-85x100-2015-04-15.jpg.
.CiESVer2.jpg.
.boomerang-85x50-2023-12-17.png.
.suttoncreativ85x50.jpg.
.daytona.jpg.
.AeroMach85x100.png.
.mcfarlane-85x50.png.
.KalAir_Black.jpg.
.sierratrax-85x50.png.
.jandsaviation-85x50.jpg.
.temple-85x100-2015-02-23.jpg.
.v2x.85x100.png.
.Aircraft Associates.85x50.png.
.aerox_85x100.png.
.tat-85x100.png.
.kadex-85x50.jpg.
.KingAirMaint85_50.png.
.holymicro-85x50.jpg.
.sarasota.png.
.Latitude.jpg.
.b-kool-85x50.png.
.midwest2.jpg.
.Plane AC Tile.png.
.kingairnation-85x50.png.
.geebee-85x50.jpg.
.Wentworth_85x100.JPG.
.headsetsetc_Small_85x50.jpg.
.Elite-85x50.png.
.Wingman 85x50.png.
.ocraviation-85x50.png.
.traceaviation-85x150.png.
.jetacq-85x50.jpg.
.8flight logo.jpeg.
.garmin-85x200-2021-11-22.jpg.
.ABS-85x100.jpg.
.LogAirLower85x50.png.
.pdi-85x50.jpg.
.dbm.jpg.
.stanmusikame-85x50.jpg.
.bpt-85x50-2019-07-27.jpg.
.puremedical-85x200.jpg.
.shortnnumbers-85x100.png.
.avnav.jpg.
.AAI.jpg.
.aviationdesigndouble.jpg.
.rnp.85x50.png.
.camguard.jpg.
.performanceaero-85x50.jpg.
.BT Ad.png.
.wat-85x50.jpg.
.SCA.jpg.
.gallagher_85x50.jpg.