Service Ceiling

Submitted by Anonymous on

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From: Curtis Krouse <ckrouse [at] worldnet.att.net>
Subject: Re: Service Ceiling
Date: Sat, 19 Dec 1998 21:46:57 -0600
To: <lancair.list [at] olsusa.com>

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Lorn,



Thank you very much.  With that kind of performance, it may definitely be

worth the nearly 8K of savings for an O-320 vs IO-320.



For the rest of the list,



I'm still wondering about fuel injection though.  With the kind of

performance Lorn is talking about, I'm wondering what advantages there are

with fuel injection with respect to service ceiling.  I know what the

advantage is in surface based vehicles, but I'm not too clear what the

advantages are in aircraft.  Does it increase performance and efficiency?

Does it reduce the rate of fuel consumption?  Does it require more

maintenance?  Does it have an effect on rate of climb?



Thanks,

Curtis N753K

Service Ceiling

Submitted by Anonymous on

From: Curtis Krouse <ckrouse [at] worldnet.att.net>
Subject: Re: Service Ceiling
Date: Sun, 20 Dec 1998 12:19:09 -0600
To: <lancair.list [at] olsusa.com>
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Simon,



Thank you.  I never thought about the carb ice problem.  It could prove

to be a problem here in the norhwestern U.S.  The savings advantage to

eliminate carb ice, could well be worth the added expense.





-----Original Message-----

From: Simon Creasy <creasy [at] voyager.co.nz>

Subject: Re: Service Ceiling

Dear Curtis,  The MAIN advantage of fuel injection in Aircraft is

the non-ICING problem.  Here in New Zealand where the weather is

changeable the fact that having a fuel injected engine removes one

MAJOR worry.  Given a choice, I would thoroughly recommend you go for

the injected engine every time.



Best wishes,  Simon Creasy.

Service Ceiling

Submitted by Anonymous on

From: David Lowry <dave [at] edt.com>
Subject: Service Ceiling
Date: Sun, 10 Jun 2001 13:57:08 -0700
To: <lancair.list [at] olsusa.com>
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I am building a Legacy and I noticed on the specifications the

 service ceiling is specified as 18,000 feet. I currently have a 1957

 C182 and the POH gives numbers up to 20000 feet. I have had

 the 182 to 18,000 fully loaded (minus the gas to get there) and it

 performed ok kept us out of the ice. I have also had it above

 18,000 light (just me) and it performed quite well (still climbing at

300fpm).

 My question for those that know is. What does service ceiling mean? It

seems

 like the legacy weighing less and with 25% more hp should still work well

 at 18000 and above. What other considerations are there?



 Another non Lancair question. My daughter, her friend, friends dad and I

are

 planning a trip to Mammoth Lakes, CA area (Ansel Adams Wilderness) the week

 of July 4th. We will be traveling via 182. Since you need a reservation for

the

 hike we may (or may not) need to arrive early to accomodate the weather.

 If someone local to the area would contact me (dave [at] edt.com) with the

lowdown

 on where we could overnight at the last minute or park the plane

inexpensively

 and get a ride etc, I would appreciate it. The actual airport at Mammoth

seems

 to have little flexibility and jet destination pricing, though not as bad

as Las Vegas.

 Thanks,

 David Lowry

 Legacy

 dave [at] edt.com





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Service Ceiling

Submitted by Anonymous on

From: Marcelo Pacheco <pacheco [at] progress.com>
Subject: Re: Service Ceiling
Date: Mon, 11 Jun 2001 10:59:44 -0400
To: <lancair.list [at] olsusa.com>
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I read testimonies of a Lancair 360 getting to FL220 and doing about 184KTAS.

There's not much of a point to flying that high, unless you have weather to top.

The standard aircraft will loose performance. If have as much induction ram air

recovery as possible, the a 360 should be able to get higher.



A Legacy with an IO-550-N should be able to go at least that high.



Lancair just didn't tested the aircraft that high, that's why they list the

ceiling at 18000ft.



My opinion only.



Marcelo Pacheco

PP-ASEL IFR

Lancair 360 80% completed

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Service Ceiling

Submitted by Anonymous on

From: AP Pienaar <pine [at] cpro.co.za>
Subject: Re: Service Ceiling
Date: Mon, 11 Jun 2001 21:59:41 +0200
To: <lancair.list [at] olsusa.com>
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Hi



It's got nothing to do with testing or flying it's all red-tape stuff!!!. If

Lancair say anything above 18000ft you'll pay much more for insurance on it.



It WILL go far above 18000ft !!



Pine





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Service Ceiling

Submitted by Anonymous on

From: <Theo.Green [at] firstar.com>
Subject: Re: Service Ceiling
Date: Mon, 11 Jun 2001 18:09:04 -0500
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David:



I think I remember service ceiling as top altitude at 100'/min climb;

Absolute ceiling is 0 climb. (Or maybe it was 200 and 100'/min) I don't

think zooming is allowed. Can anyone refresh my memory?



Last weekend my rented '57 182 at gross and full fuel was really climbing

slow at 10,000. 18,000 would have taken all day...



Theo



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Service Ceiling

Submitted by Anonymous on

From: Britt Crowell <britt [at] fortcollins.com>
Subject: Re: Service Ceiling
Date: Tue, 12 Jun 2001 09:44:07 -0600
To: <lancair.list [at] olsusa.com>
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> I think I remember service ceiling as top altitude at 100'/min climb;

> Absolute ceiling is 0 climb. (Or maybe it was 200 and 100'/min) I don't

> think zooming is allowed. Can anyone refresh my memory?





I believe I remember from reading some where, that the ceiling is considered

to be where Vx and Vy are equal.



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Service Ceiling

Submitted by Anonymous on

From: David Lowry <dave [at] edt.com>
Subject: Re: Service Ceiling
Date: Tue, 12 Jun 2001 08:55:31 -0700
To: <lancair.list [at] olsusa.com>
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Thanks Pine, Theo and Marcelo,



I was expecting some technical discussion of  pressurized mags and

airfoils. I never thought of insurance actuarys.



Theo, my 182 does seem to have a strong engine though the time we were

full gross I had a pilot in the right seat who is a real master of the

three knobs.



It is interesting that airplanes can be that different while sharing the

same POH. Take a look at your POH but once your below 75% power or so full

RPM is allowed on the O470L which will get a few more horsepower.



Marcelo, I agree that 18,000 may not be the most efficeint but it is good

to have when trying to leave Western Oregon (summer or winter) unless you

have known ice. When we were on top at 18,000 there was a Bonanza at 10k

with a load of ice asking ATC what minimum terrain clearance was and being

told he could go to 7k but lose radar and radio. I'll take 18,000.



David Lowry



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Service Ceiling

Submitted by Anonymous on

From: Ted Stanley <direct [at] vineyard.net>
Subject: re: Service Ceiling
Date: Wed, 13 Jun 2001 16:16:25 -0400
To: LML reply address <lancair.list [at] olsusa.com>
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The definition of service ceiling is:



The highest altitude at which an aircraft can maintain a steady rate of

climb of 100 feet per minute.



Have a look at:



AC 90-89A - AMATEUR-BUILT AIRCRAFT & ULTRALIGHT FLIGHT TESTING HANDBOOK



CHAPTER  6.



SECTION 2. SERVICE CEILING TESTS



1. OBJECTIVE.

   To determine the highest altitude at which an aircraft can continue to

climb at 100 feet per minute (Service Ceiling).



   a. Pilots who wish to determine the actual service ceiling of their

aircraft are offered the following suggestions:



      (1) Ask the local Flight Standards District Office (FSDO) to amend

the Operating Limitations to permit a climb to the aircraft's service

ceiling, if that altitude is above 18,000 feet.

      (2) Contact the local Flight Service Station (FSS) or ATC facility,

and reserve a time and airspace to make the test.

      (3) Install a transponder (reference FAR 91.215) or get a waiver.

      (4) Install a portable oxygen bottle, if plans are to go above 12,000

feet. (Recommend the pilot becomes familiar with the symptoms and cures of

hypoxia and hyperventilation. )

      (5) Review the engine manufacturer's mixture leaning procedures.

      (6) Maintain communications with an air traffic facility at all

times.



   b. The climb to the aircraft service ceiling should be made in a series

of step climbs during which engine performance, temperatures and pressures

are recorded. At the slightest indication of engine performance or aircraft

control problems, the pilot should terminate the test and return to the

airport.





Ted Stanley - A&P-IA

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Service ceiling

Submitted by Anonymous on

From: Greenbacks, UnLtd. <N4ZQ [at] VERIZON.NET>
Subject: Service ceiling
Date: Fri, 14 Feb 2014 12:29:18 -0500
To: Lancair Mailing List <lml [at] lancaironline.net>
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I'm off to KLNA and MYEH in a few weeks so the new MH pulsed O2 will have a trial run.