FL180 Cessna 172 Skyhawk

Sure, but that's (most likely) max gross weight, standard conditions. Do you consider the short field takeoff or landing distance an aircraft limitation?

Those numbers are put in place by test pilots that demonstrated the short field capability of an aircraft under certain parameters that will allow you to operate the aircraft within limits that you should be aware of. No it is not a limitation by definition, but it defines on how you operate the aircraft. That limits you to some extent.

Once you go outside that number, you really don't know what the limits are of the aircraft.

A flight school is in the business of education, and saying that something is a limitation when it isn't listed in the operating limitations and to say something is dangerous without any convincing argument or evidence isn't educating its students, IMO. An educator must live by the rules of logic and evidence that we try to teach our students, even when the conclusions make us uncomfortable.

My only concern with the OP is I would prefer to find a bit more timidity in a new pilot, but we need the Steve Fossetts of the world, too.

Agreed a flight school is in the business of education. Part of that education is minimizing risk. You can fly approaches all day long in a C-172 to 1/2 mile visibility 200 foot overcast ceilings. It is certified to do that. But is it really the SAFE thing to do, shooting approaches in hard IFR conditions with no really redundant systems. No you are really not exceeding the aircraft limitation, or breaking any FARs, but you are also not minimizing risk.

There are ways you can push the limits and educate while minimizing risk. Do a long 350 NM+ cross country, take an aerobatic course with an approved airplane and aerobatic instructor, are good educational opportunities while not endangering oneself.

Taking up a 172 to 18,000 feet is not the thing to do.
 
limits that you should be aware of. No it is not a limitation by definition,

Exactly. You should be aware of the service ceiling, because it may be limiting in a practical way if you're flying in areas of high terrain. But it's not an operating limitation, by definition.

One could argue that the OP has provided himself with a real education in aircraft performance limitations under controlled, benign conditions, and is less likely to be surprised by a lack of performance when he really needs it.

Taking up a 172 to 18,000 feet is not the thing to do.
So far, there has been no real evidence offered for this point of view. Is it any wonder that the OP doesn't take these warnings seriously?
 
So far, there has been no real evidence offered for this point of view. Is it any wonder that the OP doesn't take these warnings seriously?

Truly don't understand why anyone is debating such a minor premise. This issue is moot.

This quote is interesting.

Interesting. That limitation does not exist in the US version of the TCDS. I would have assumed they used the US limitations without making any alterations. I wonder why the difference? Is there an altitude limitation to portable oxygen systems?

I suppose we're asking this question simply for the technical insight gained from the answer. As it relates to Class A infraction, I wonder if "Roger Ramjet" took that into consideration when he performed his due diligent analysis of flying to FL180? Oh. . .sorry, per his quote,

The whole class A bit didn't even enter my mind during the flight until some responses made it clear. I took for granted that Flight Following would advise me of any needed course corrections or altitude changes in the same way they direct me around traffic, active MOA's, or... different classes of airspace I've been vectored around when using flight following if the situation deems it necessary. Call it amateur hour, call it what you like.

My point, as well as those of others, is recognized by sdfcvoh, so I'm happy. Point made...lesson learned.

Now, what's scary?

My only concern with the OP is I would prefer to find a bit more timidity in a new pilot, but we need the Steve Fossetts of the world, too.

True, a bit more timidity in a new pilot is preferable, especially when rule infractions are occuring. Lastly, Steve Fossett is/was one of a kind. . .jury is still out on his status. So tgrayson, are you making comparisons to sdfcvoh actions similar to those a young Steve Fossett might do?

Just asking. . .
 
Agreed a flight school is in the business of education. Part of that education is minimizing risk. You can fly approaches all day long in a C-172 to 1/2 mile visibility 200 foot overcast ceilings. It is certified to do that. But is it really the SAFE thing to do, shooting approaches in hard IFR conditions with no really redundant systems. No you are really not exceeding the aircraft limitation, or breaking any FARs, but you are also not minimizing risk.

There are ways you can push the limits and educate while minimizing risk. Do a long 350 NM+ cross country, take an aerobatic course with an approved airplane and aerobatic instructor, are good educational opportunities while not endangering oneself.

Taking up a 172 to 18,000 feet is not the thing to do.

Seggy,

With all due respect, you sound like a typical airline pilot who no longer trusts small general aviation planes. You remind me of my friend who used to criss-cross mountainous terrain in his Cessna 150 all day, then started flying King Airs and no longer felt safe unless he had two turbine engines pulling him along.

You speak of redundant systems for flying IFR. How about redundant systems for flying, period? Using your line of logic, one could argue that flying single engine planes is unacceptably dangerous and it's only safe to fly multi-engine planes because that way you have redundant engines.

It never ceases to amaze me how everything in aviation is relative. I bet there are some 747 captains out there who think doing eight leg days in a Beech 1900 is dangerous. Would you agree?

"Minimizing risk" is a nice idea, but it's pretty hard to define. Risk can never be eliminated, so who or what determines an acceptable threshold? That's one of the great philosophical questions of flying that will never be definitively answered.

As for this business of limitations...have you ever looked at an operating handbook for a classic aircraft? They're almost a joke. I fly a 1946 Cessna 140 on a regular basis and the POH numbers don't mean much to me. I fly it by feel because I have to. If one were to try to fly it "by the numbers" they'd get in trouble real quick.

I've taken my C-140 up to 12,500+ feet when I'm alone on a 70 degree day, and I haven't been able to climb an inch above 6,000 feet when I'm fully loaded on a hot day. That's a 6,500 foot difference in service ceiling, depending on conditions! I couldn't have learned those numbers from my POH...I had to go out and play with it.

Also, there are times I've flown completely outside the performance charts for the plane. The operating handbook doesn't list takeoff/climb performance data for 7,000 foot density altitude airports. I can tell you from experience that at max gross weight, with calm wind, on a paved, level, dry runway I can get the mains off the ground in about 5000 feet and climb out at about 150 feet per minute though. Am I reckless for even trying?

What I'm trying to say is, numbers in a book are great, but pilots can't be too dependent on them for operating in the real world, at least when flying light general aviation planes.

I see absolutely nothing dangerous about taking a C-172 up to FL180. If you stall, you have 18,000 feet to recover! If the engine quits...my goodness...I can only imagine how many miles you could glide, as well as how many minutes you would have to troubleshoot and try to get the engine going again.

If anyone can explain what's so risky about it, I'm all ears.

To me, I think the biggest risk would come from the plane's mechanic if he ever heard what temperature extremes the pilot put that poor engine through!
 
Damn jrh, can I have a pic of you to use as my avatar? Nicely said, and extremely well explained. My funny bone always gets tickled a bit everytime people challenge tgrayson. Mojo once called him "Obi Won" and I think that is fitting for him.

Although I have had several conversations with other JC members about sdvhoh's(sp) progress through the PPL (i.e. - learning stalls on Monday, and doing solo x/c flights on Wed.), I think it is great to see someone get out there and get through the training and earn the license in such a very short period of time. However, the only drawback to that approach is that the amount of 'tougher' experiences to bail one's self out of is not what it might be for people that have spent just a tiny bit longer in getting their ratings.

And then, this guy starts posting pics and such about taking up a 172 up to 17,999. Boy, did that really get us talking all over again. :eek:

I also wondered the same thing about what would happen when the air gets so thin up there for a Lycoming 320. What if it quits? Oh, the glide distance would take one to San Diego from Tucson. Then, we threw in a 172SP into the mix....a bit tougher to start (fuel injection) if the engine quits, but you would have like 2 hours to get it back started. Now, if it were a pre 172R/172SP and had a carburetor....those things will start back up after they spent years on an ocean floor.

I personally have no interest in testing the limits of a plane with my low amount of experience/hours, but I do look forward to spin training in the next month or so. My luck is already bad enough than to purposely induce craziness with doing something in an airplane that I have never heard of.

Although, I can say that a fully loaded CG piper twin will stall (horn anyway) on Vlof if you do not push like hell to perform a soft field type of lift-off....especially in a brisk cross wind.
 
To me, I think the biggest risk would come from the plane's mechanic if he ever heard what temperature extremes the pilot put that poor engine through!


I trust small general aviation planes and have flown and will continue to fly small general aviation planes at every chance I can get. I want to get my seaplane ratings in the next few years.

Sorry but minimizing the risks of flying isn't rocket science. Want to go out and practice IFR in a single engine airplane in actual conditions? Go right ahead. I did it a lot, just made sure my ceilings were at least 1000 feet and 3 miles vis. I knew if crap hit the fan, I wouldn't need to shoot an approach to minimums with a broken airplane with no back up systems.

So he takes the C-172 to FL180, which he really can't because he isn't IFR certified (I believe he actually took it ABOVE 180 so he broke a FAR) this time. He endures the engine, like you said to extreme temperature changes, he lands gets out and goes on his way. I get in the airplane, which now has a cracked cylinder because of the temperature changes and my engine fails right after take off. So he was able to 'test the envelope' while I lose an engine after takeoff and become a smoking hole at the end of the runway?

Like I said, no reason to push the airplane outside of its boundaries. I wouldn't land my Beech in a 2000 foot long runway, I CAN do it, but why risk it?
 
I can't believe this is even a discussion. Sdfcvoh, if you really took it up to 180 (as the thread title says), then you screwed up big time. You went into airspace that you weren't certified or cleared into. That kind of airspace violation isn't really explainable by anything other than ignorance of the regs, either. Instead of learning from your mistake, you brag about getting up there explain it away with a "well, you guys have broken regs too". Of course we have! I've done stupider things, but they were unintentional and I didn't post about them all over the internet. I don't know you at all, but from your posts here it sounds like some humility might be helpful.
 
I trust small general aviation planes and have flown and will continue to fly small general aviation planes at every chance I can get. I want to get my seaplane ratings in the next few years.

In my opinion, you don't have to rationalize anything to anyone. I understood your perspective completely with regards to ensuring checks and balances to minimize risk.

So he takes the C-172 to FL180, which he really can't because he isn't IFR certified (I believe he actually took it ABOVE 180 so he broke a FAR) this time.

Love ya man! Add to the fact he took the incriminating pic off, he also realized he'd done wrong. Breaking the FAR was my only point.
 
I think you might want to re-read my posts. Just for clarification.

Nah, I was just responding to statements like this:

the next time that you drive 56mph instead of 55mph you are as guilty as if you just killed your own mother with a dull knife as I am of busting class A airspace.

Just to make sure you understand...busting *any* airspace is a big deal that can potentially cost you your certificate. If the feds caught wind of this, I don't think they would give a rat's bootay about the fact that you were in contact with ATC or that you weren't aware of the class A entry requirements.

Pushing yourself is a great idea, but not if you aren't aware at all of what you're getting yourself into.
 
All I'm asking is that if you quote me - you do it in context. I don't think its asking too much of you to do that. George Bush is the only one we can allow to give out those half-truths. :D

Nah, I was just responding to statements like this:

So, I understand your explanation. Strictly hypothetically speaking, if a 30 year old accused rapist says his 16 year old victim was in a club with the permission of the club's owner and she was smoking a cigarette and drinking a beer, it's ok NOT accuse them of rape for having sex with this teenager, that's okay as well?

The analogy? None, I was simply ranting...

Just remember that, according to your own right/wrong comparison back on page 1, the next time that you drive 56mph instead of 55mph you are as guilty as if you just killed your own mother with a dull knife as I am of busting class A airspace.
 
I already added some stuff in this thread but started thinking about some more things. How did your checkride for your PPL go? I know for a fact airspace was drilled into me all throughout training and on my PPL oral. I was expected to know cloud clearance requirements and entry/communication requirements from Class A - Class G cold. Did your instructor go over these things in detail? Just curious.
 
All I'm asking is that if you quote me - you do it in context. I don't think its asking too much of you to do that. George Bush is the only one we can allow to give out those half-truths. :D


. . . something tells me you're going to require a significantly long BFR. . . if you make it that far. The more you post, the more I'm beginning to wonder how in the world did you actually passed your orals? ;)
 
All I'm asking is that if you quote me - you do it in context. I don't think its asking too much of you to do that. George Bush is the only one we can allow to give out those half-truths. :D

You're right...looking back on what you wrote I have no clue what either analogy is talking about. :)

Seriously, though, I just want to make sure you understand that airspace rules are there for a reason and shouldn't be taken lightly at all...*especially* if you're flying around Tucson. I flew out of there for quite a while, and I still have a lot of friends flying for Skywest out of there. I know TUS is a GA-friendly airport, but I saw on numerous occasions airliners going around due to GA aircraft not following tower instructions or getting into the arrival path there.

I don't mean to be obnoxious, but I guess I just get slightly annoyed when I see people taking what seems to be a cavalier attitude towards things like airspace rules.
 
I trust small general aviation planes and have flown and will continue to fly small general aviation planes at every chance I can get. I want to get my seaplane ratings in the next few years.

Sorry but minimizing the risks of flying isn't rocket science. Want to go out and practice IFR in a single engine airplane in actual conditions? Go right ahead. I did it a lot, just made sure my ceilings were at least 1000 feet and 3 miles vis. I knew if crap hit the fan, I wouldn't need to shoot an approach to minimums with a broken airplane with no back up systems.

Where's MTSU_av8r when I need him? I'm sure he'd have plenty to say about flying IFR in single engine aircraft without redundant systems.

Seggy, your response proves my point perfectly. Risk management is highly subjective and changes from pilot to pilot. You set your minimums at 1000/3. That's fine. Another pilot might want 2000/5 and another might be comfortable going to the legal limits. Who's to determine what's right? What happens in slightly different aircraft? Maybe one aircraft is barely legal for IFR, another has an electric attitude indicator, and yet another has dual vaccuum pumps. Maybe one has steam gauges, while another has a glass panel. Maybe one is piston powered while another is turbine powered. Does that change the criteria at all? If so, exactly how much? Where are the lines drawn?

I don't consider any set of criteria particularly dangerous as long as the pilot knows what he's getting in to. That's what I'm trying to say--there are SO many variables, this isn't a clear cut issue where one pilot can automatically call another one dangerous.

Have you ever taken off from an airport with no decent landing sites off the departure end of the runway? I've done it numerous times, usually either in major metropolitan areas or off in the mountains somewhere. If the engine cuts out when I'm 100 feet off the ground, I know I'll either be going in to buildings or trees, no doubt about it. But I accept that as a reasonable risk. I'm essentially risking my life that the only engine I have will keep turning for a few minutes after liftoff. I *minimize* risk by doing an engine runup to make sure the engine is healthy, I climb at Vy, etc. but when it comes down to it, I'm still making a takeoff without many options. I could just stay on the ground and refuse to fly in and out of such airports. Where should the line be drawn?

I could keep making up scenarios all day. I'm not saying I'm perfect or that you're overly conservative. My point is simply that risk management isn't nearly as clear cut as you're making it out to be.

So he takes the C-172 to FL180, which he really can't because he isn't IFR certified (I believe he actually took it ABOVE 180 so he broke a FAR) this time. He endures the engine, like you said to extreme temperature changes, he lands gets out and goes on his way. I get in the airplane, which now has a cracked cylinder because of the temperature changes and my engine fails right after take off. So he was able to 'test the envelope' while I lose an engine after takeoff and become a smoking hole at the end of the runway?

First, the regulatory violations are obvious and I don't condone those in any way. The only reason I didn't mention them in my first post was because 20 other people had already jumped on him about it and I didn't care to beat a dead horse. I only wanted to address the issue of "testing the limits" of a plane.

As for the issue of cracking a cylinder, of course that's a consideration, but he could have cracked a cylinder going to 14k almost as easily as going to 18k. The extreme altitude has less to do with cracking a cylinder as does the fact that an inexperienced pilot was operating the engine in a much less forgiving environment than they were used to.

There are numerous ways inexperienced pilots find to inadvertantly abuse planes. How many retractable gear aircraft (I'm thinking of Piper Arrows in particular) at flight schools have gear problems because inexperienced pilots repeatedly slam on landings? How many brakes get excessively worn because of pilots riding the brakes while they taxi?

Granted, cracking a cylinder is a little more extreme and unnecessary than my other examples, but my point is that rental planes get abused all the time. It sort of comes with the territory of being a renter pilot--you never really know what the goof before you did to the plane.

Does that mean pilots shouldn't operate their aircraft as gently and safely as possible? No, of course not. Every pilot has an obligation to be careful, but I've been around low time pilots long enough to know this sort of thing happens. It's just the way life is.

Like I said, no reason to push the airplane outside of its boundaries. I wouldn't land my Beech in a 2000 foot long runway, I CAN do it, but why risk it?

How about a 2100 foot runway? 2200? 2500? 3000? Hmm...where is the line drawn?

I think there's probably some Beech 1900 operators in Alaska that operate in and out of 2000 foot strips. Does that make them reckless? If not, why not?

I understand your point that your work doesn't require you to fly in to 2000 foot strips, so you don't want to risk it. Fair enough. I consider that good judgement. There's no reason to "cowboy" it and do something just to show off--especially at the professional level you're at.

Unfortunately, I don't think it works the same way in a flight training environment. For flight training, there's really no reason to fly on any day other than those that are CAVU with calm winds. It's not like there's a job to do, or any pressing need. But we still fly, for the sake of learning. We encourage people to expand their comfort zone and practice crosswind landings, or long solo cross countries. Those activities have an increased level of risk, but also reward the pilot with an increased level of proficiency--ultimately lowering their risk of an accident in the long run.

I don't see how taking a 172 to FL180 is any different. It's pushing the envelope (in a fairly mundane way, IMO) in order to learn something.
 
Where's MTSU_av8r when I need him? I'm sure he'd have plenty to say about flying IFR in single engine aircraft without redundant systems.

Seggy, your response proves my point perfectly. Risk management is highly subjective and changes from pilot to pilot. You set your minimums at 1000/3. That's fine. Another pilot might want 2000/5 and another might be comfortable going to the legal limits. Who's to determine what's right? What happens in slightly different aircraft? Maybe one aircraft is barely legal for IFR, another has an electric attitude indicator, and yet another has dual vaccuum pumps. Maybe one has steam gauges, while another has a glass panel. Maybe one is piston powered while another is turbine powered. Does that change the criteria at all? If so, exactly how much? Where are the lines drawn?

I don't consider any set of criteria particularly dangerous as long as the pilot knows what he's getting in to. That's what I'm trying to say--there are SO many variables, this isn't a clear cut issue where one pilot can automatically call another one dangerous.

Have you ever taken off from an airport with no decent landing sites off the departure end of the runway? I've done it numerous times, usually either in major metropolitan areas or off in the mountains somewhere. If the engine cuts out when I'm 100 feet off the ground, I know I'll either be going in to buildings or trees, no doubt about it. But I accept that as a reasonable risk. I'm essentially risking my life that the only engine I have will keep turning for a few minutes after liftoff. I *minimize* risk by doing an engine runup to make sure the engine is healthy, I climb at Vy, etc. but when it comes down to it, I'm still making a takeoff without many options. I could just stay on the ground and refuse to fly in and out of such airports. Where should the line be drawn?

I could keep making up scenarios all day. I'm not saying I'm perfect or that you're overly conservative. My point is simply that risk management isn't nearly as clear cut as you're making it out to be.


Risk management isn't something that complex like you are trying to make it. If one has risky behavior in aviation it WILL get you one day. Hopefully you won't get hurt or hurt anyone else, but those that don't minimize the risk when they fly, will get caught one day.

First, the regulatory violations are obvious and I don't condone those in any way. The only reason I didn't mention them in my first post was because 20 other people had already jumped on him about it and I didn't care to beat a dead horse. I only wanted to address the issue of "testing the limits" of a plane.

As for the issue of cracking a cylinder, of course that's a consideration, but he could have cracked a cylinder going to 14k almost as easily as going to 18k. The extreme altitude has less to do with cracking a cylinder as does the fact that an inexperienced pilot was operating the engine in a much less forgiving environment than they were used to.

There are numerous ways inexperienced pilots find to inadvertantly abuse planes. How many retractable gear aircraft (I'm thinking of Piper Arrows in particular) at flight schools have gear problems because inexperienced pilots repeatedly slam on landings? How many brakes get excessively worn because of pilots riding the brakes while they taxi?

Granted, cracking a cylinder is a little more extreme and unnecessary than my other examples, but my point is that rental planes get abused all the time. It sort of comes with the territory of being a renter pilot--you never really know what the goof before you did to the plane.

Does that mean pilots shouldn't operate their aircraft as gently and safely as possible? No, of course not. Every pilot has an obligation to be careful, but I've been around low time pilots long enough to know this sort of thing happens. It's just the way life is.

Blowing a tire, having to replace the brakes, and having gear issues WILL happen. Excessive heat and cold expansion to an engine in a rental 172 because someone wants to try to fly in the flight levels isn't normal rental issues that come up.

When you operate the engine outside of what it was designed to do, you are not minimizing the risk. I doubt they designed the engine to be leaned out at 17,999 feet. See, not that hard to minimize the risks associated with flying.

How about a 2100 foot runway? 2200? 2500? 3000? Hmm...where is the line drawn?

I think there's probably some Beech 1900 operators in Alaska that operate in and out of 2000 foot strips. Does that make them reckless? If not, why not?

I understand your point that your work doesn't require you to fly in to 2000 foot strips, so you don't want to risk it. Fair enough. I consider that good judgment. There's no reason to "cowboy" it and do something just to show off--especially at the professional level you're at.

I know I can land the 1900 fully loaded in about 1000 feet if I wanted to. I actually HAD to, one time because some yahoo wasn't talking on the radio and had to hold short of the runway to prevent an accident. Anyway, the company dictates we must use 4000 feet of runway to land the airplane. It is a set limitation that I follow. There have been times I have been offered 33R in BOS to land on. If we accepted it we would get right in, no flow delays. It is not within our margin of safely, so we don't use it. I know I can land an airplane there safely but why chance it? I know how the 1900 preforms on short runways, why do I need to land on it to prove a point?

You want to see how a 172 reacts high, slow, and heavy? Take it to 13,000 feet. Is that 5000 feet REALLY going to make a difference that one can tell, that being between 13,000 and 18,000 feet?
 
It seems to me, if I recall, when I was first getting into flying 10 years ago someone talked about the dangerous attitudes that don't mix well with aviation.

Do they not teach those anymore?
 
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