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On Tue, 20 Jul 2004 16:09:59 +0200, Thomas Borchert
wrote: C, Ah, the lifetime limit. Most any aviation expert I have heard commenting that says it's no big deal. I tend to agree. But we've been around that particular block before. What happens when an airframe goes beyond the lifetime limit? Is the airworthiness certificate trash then? |
#2
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![]() "6079 Smith" wrote in message ... On Tue, 20 Jul 2004 16:09:59 +0200, Thomas Borchert wrote: C, Ah, the lifetime limit. Most any aviation expert I have heard commenting that says it's no big deal. I tend to agree. But we've been around that particular block before. What happens when an airframe goes beyond the lifetime limit? Is the airworthiness certificate trash then? In theory, yes. However, what the FAA has said is that when a significant number of aircraft approach the lifetime limit then they will inspect the planes for signs of age and wear and possibly extend the lifetime limit, with perhaps some limitations and conditions. Of course, you have to take the FAA's word for this... Anyway, I was told that all new aircraft designs are having some sort of lifetime limit, usually 12,000 hours, imposed on them. The Diamonds appear to be an exception; they have no limit directly mentioned on the TCDS*, so I don't know how accurate that information is. But that is what I was told. We will see what limitations are placed on the DA42. Of course, no one in their right mind trusts the FAA, least of all the FAA's own personnel. Policies and procedures there change with the wind. It must be hell to work there. If nothing is done, the airplane becomes an expensive lawn ornament. *The TCDS says that the DA40 must comply with the airworthiness limitations and time limits specified in the maintenance manual. That manual is nearly 2000 pages long, but I could not find any airframe time limit in either chapters 4 or 5, which cover airworthiness and time limits. There is also no mention of any airframe time limit in the Flight Manual. Both manuals are available on Diamond's web site for those who wish to examine them. (I wish Cessna would do that.) Furthermore, Diamond's representative told me that the Diamond has no airframe life limit. If I seem suspicious, I have my reasons. |
#3
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![]() Michael 182 wrote: "C J Campbell" wrote in message good review snipped I would say that this airplane still beats the Cirrus hands down. I have a TR-182, and I'm looking at used Cirrus SR-22. What are the key reasons for your statement? Michael From one thing to another, it is rather surprising to see a relative newcomer on the market using "Cirrus" as a brand name, when there have already been aircraft with that name in existance for quite a number of years, and there are still large numbers of them flying around in different parts of the world. http://www.standardcirrus.org/ Did the manufacturer Schempp-Hirth not protect the "Cirrus" brand name in the US ? A rather serious omission that, if it allows others to clown around with their product name like this. Would this possibly cause difficulties in some countries for the makers of this power-"Cirrus" if they wanted to export it ? Just wondering ... CV |
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Wow, it beats the Cirrus? You mean the 20 or 22?
Would the 182S have better mileage than the Diamond? But the range is the same? But the tanks are much bigger? Is there an advatage to the Turbo for mileage? I am confused, did I read you right? This doesn't seem possible unless they have done something really fantastic. It is heavier, and has a bigger engine. Even if they both had the same drag, this should not be the same mileage. When I checked this out, I looked at the S model, and the mileage was a lot better in the Diamond. The only advantage the S seemed to have over the Diamond was the size of the front seat, and the capacity. However, in many sample missions, the useful load after necessary fuel was very similar. My take, pre glass, was that the 182 was more for a serious traveler, who needed the load and the range. Also, off field/soft field use as well as high density climb ability went to the Cessna. The diamond seemed to be more for the Accord buyer - better economy, safety, simplicity at the expense of some size and tow ability compared to the mini-SUV like 182. "C J Campbell" wrote in message ... OK, I know I said I would not get to fly this plane until tomorrow, but it arrived early and so I took a flight. This is a new turbocharged Cessna T182T. For those that have not seen the 182T (either turbo or normal, introduced last year), you might be a little startled the first time you take a look. It does not look like a 182. All the fairings and cowling have been redesigned and even the windscreen got a speed treatment, so it looks more like a racy little Cardinal on steroids instead of a 182. Useful load has increased by about 50 pounds with the lightweight Nav III package and the additional streamlining increased the cruise speed another four knots to 158 KTAS at 88% power at 12,500 feet. Max cruise is 178 knots. Range at 88% power is about 600 nm, but you could stretch it out to 886 nm at 45% power. Inside is equally different. The seats, panel, and general interior are radically re-arranged. The seats have gone on a diet from the earlier "new" 182s; they are much trimmer and lighter. All interior lighting is now LED. But the big change is the G-1000 panel, which Cessna modeled after its jets. All the knobs, switches, etc., are big and utilitarian and color coded. The G-1000 in this bird has a 30 minute lithium battery backup; you lose power and you still have your full panel for 30 minutes. The master switches have been moved high and to the left with all the other switches grouped under them. Interior light dimmer switches are big gray plastic knobby things mounted to the left of the panel; Cessna no longer makes each pot do double duty. All the circuit breakers for lighting and such are the standard non-pullable white circuit breakers and they are grouped to the left. All the other circuit breakers are now pullable and grouped under the main panel. Below the panels and in the center are backup airspeed, vacuum attitude, and altitude indicators. The KLN 140 autopilot is located awkwardly off somewhat to the right and above these. Overall cabin visibility really bites after riding in the Diamond. The entire panel is metal painted black and gray. The avionics now run off no less than five busses, but the avionics master still only turns on bus 1 and 2. Anyway, in order to lose your panels completely you would probably have to be on fire with an engine failure, alternator failure, and failure of both your primary and backup batteries -- and you still would have your backup pitot/static instruments and vacuum attitude indicator (at least until the dual vacuum pumps spun down because of the engine failure). In such circumstances the panels would probably be the least of your worries. You start the engine with the backup battery on so you can see your engine instruments. Otherwise, the start is normal. Once everything is going you turn the backup battery off, flip on the avionics master and go. The controls on this particular airplane were extremely heavy for a 182; I kept looking to see if the control lock is in. If it was my plane it would go into the shop immediately to see if the controls can be loosened up some. The G-1000s work pretty much the same as the Diamond, so this time I wanted to fly a GPS autopilot coupled approach. Garmin has not yet developed an FMS for the G-1000, but one is supposedly coming. Nevertheless, the autopilot tracked and followed the entire approach, though it turned a little late. There was no need to set new courses or heading bugs; the G-1000 handles all that automatically. Setting up the approach took only a few seconds. The KLN-140 autopilot, of course, still does not know when to descend, so you have to tell it. Still, it didn't do a bad job for what is really a basic autopilot. One thing I did not mention about the G-1000 in my previous report is the fuel circle; the map shows the limits of your remaining fuel with a red circle. I checked on the transponder issue: the G-1000 while on the ground responds to Mode S interrogations for traffic movement, but you can also switch it to mode A or C by pushing a button. The Cessna 182 gives you more speed and payload than the Diamond, but not more range, for at least $30,000 more. It also burns 3 gph more fuel (but gas mileage is about the same -- so much for supposedly more streamlined design of the Diamond) and has greatly reduced visibility and it just does not look as cool. I would say that this airplane still beats the Cirrus hands down. -- Christopher J. Campbell World Famous Flight Instructor Port Orchard, WA If you go around beating the Bush, don't complain if you rile the animals. |
#5
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C,
for at least $30,000 more. It also burns 3 gph more fuel (but gas mileage is about the same -- so much for supposedly more streamlined design of the Diamond) How do you arrive at these figures? First, you can get a G1000-equipped 182 for 280,000? Second, you're saying the turbo 182 (which, of course, is WAY more expensive than the DA40, not just 30,000) will burn only 13 gph? At what speed? Could you pls elaborate? Thanks! I would say that this airplane still beats the Cirrus hands down. Why that? -- Thomas Borchert (EDDH) |
#6
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![]() "Thomas Borchert" wrote in message ... C, for at least $30,000 more. It also burns 3 gph more fuel (but gas mileage is about the same -- so much for supposedly more streamlined design of the Diamond) How do you arrive at these figures? First, you can get a G1000-equipped 182 for 280,000? Second, you're saying the turbo 182 (which, of course, is WAY more expensive than the DA40, not just 30,000) will burn only 13 gph? At what speed? Could you pls elaborate? Thanks! A G-1000 equipped 182 costs $290,000, while the DA-40 costs $260,000. The 182 is pretty consistent at 13 gph, but the T182 burns more like 15 gph. A T182 costs about $25,000 more than a 182. The Cirrus is beautiful, comfortable, and way over-rated. The airframe life limit is a show-stopper all by itself. Putting that aside, it has about the same payload as a T182, but it is quite a bit faster with a cruise speed of 180 knots. The Avidyne in the Cirrus is nowhere near the panel that the G-1000 is, though. If the Avidyne fails in flight it cannot re-acquire itself until on the ground, which is why examiners and instructors save partial panel stuff for the end of the flight. The side stick is really only half a yoke. Some controls (such as trim) are awkwardly located, especially considering the manufacturer likes to brag about the plane's ergonomics. The poor safety record is alarming. Maybe they have fixed it; maybe they haven't. My take on the Cirrus is to give it a little more time. Let the company work out the compromises they made with the FAA on airframe limits, fix the controls, fix the panel, and see if the safety record improves. Until then, it is like a super-model with a bad attitude: everyone who sees one thinks they want one, but it remains distant and likely to bite. |
#7
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![]() A G-1000 equipped 182 costs $290,000, while the DA-40 costs $260,000. The 182 is pretty consistent at 13 gph, but the T182 burns more like 15 gph. Hmm. Sounds amazingly low to me, but you've flown it. More power than the old 182 with the O-470, more cubic inches and less fuel consumption? What power level are we talking? What speed? The Cirrus is beautiful, comfortable, and way over-rated. The airframe life limit is a show-stopper all by itself. I disagree. same payload as a T182, but it is quite a bit faster with a cruise speed of 180 knots. The Avidyne in the Cirrus is nowhere near the panel that the G-1000 is, though. If the Avidyne fails in flight it cannot re-acquire itself until on the ground, which is why examiners and instructors save partial panel stuff for the end of the flight. That's about to change with a software update, I have read. The side stick is really only half a yoke. Some controls (such as trim) are awkwardly located, especially considering the manufacturer likes to brag about the plane's ergonomics. The poor safety record is alarming. Maybe they have fixed it; maybe they haven't. My take on the Cirrus is to give it a little more time. Let the company work out the compromises they made with the FAA on airframe limits, fix the controls, fix the panel, and see if the safety record improves. Until then, it is like a super-model with a bad attitude: everyone who sees one thinks they want one, but it remains distant and likely to bite. Except the sales numbers don't really agree with that view. -- Thomas Borchert (EDDH) |
#8
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![]() "C J Campbell" wrote in message ... "Thomas Borchert" wrote in message ... C, for at least $30,000 more. It also burns 3 gph more fuel (but gas mileage is about the same -- so much for supposedly more streamlined design of the Diamond) How do you arrive at these figures? First, you can get a G1000-equipped 182 for 280,000? Second, you're saying the turbo 182 (which, of course, is WAY more expensive than the DA40, not just 30,000) will burn only 13 gph? At what speed? Could you pls elaborate? Thanks! A G-1000 equipped 182 costs $290,000, while the DA-40 costs $260,000. The 182 is pretty consistent at 13 gph, but the T182 burns more like 15 gph. A T182 costs about $25,000 more than a 182. The Cirrus is beautiful, comfortable, and way over-rated. The airframe life limit is a show-stopper all by itself. Putting that aside, it has about the same payload as a T182, but it is quite a bit faster with a cruise speed of 180 knots. http:\\http://www.airplanenoise.com/article....%20Cirrus.pdf Biased as hell, but some good statistical comparisons. |
#9
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"Tom Sixkiller" writes:
http:\\http://www.airplanenoise.com/article....%20Cirrus.pdf Biased as hell, but some good statistical comparisons. Some of those comparisons are based on flawed data (airframe life, engine TBO). -jav |
#10
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![]() "Javier Henderson" wrote in message ... "Tom Sixkiller" writes: http:\\http://www.airplanenoise.com/article....%20Cirrus.pdf Biased as hell, but some good statistical comparisons. Some of those comparisons are based on flawed data (airframe life, engine TBO). Actually, those are OLD data (as in "revised" since publication), not "flawed " data. You really should work for the DNC :~) |
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