![]() |
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
|
#1
|
|||
|
|||
![]()
Jim,
I don't think the Rotax is much of a bargain at all. Mattituck will sell you a brand new uncertified O200 for about $15000, which is about what the Rotax costs. There used to be a very good engine bargain in the Polish PZL Franklin, but they are no longer being made, thanks to the company's acquisition by a European aerospace concern. Too bad -- these were fully FAA-certified engines that you could buy brand new for about $8000. The fact that the company that bought the PZL plant immediately stopped production tells you a lot about the business model of the aerospace industry. It is based on low production volume and high profit margin. A lot of the business comes from government contracts and that's the way the industry likes it, as the government is the best customer you can have -- never any complaints about price. So we couldn't well have a cheap, certified airplane engine spoiling the fun now could we? So close the plant. We can see this to some extent in the Rolls Royce acquisition of Walter engines in the Czech Republic. You can be sure we won't be sseing any of the good Walter turbines or LOM piston engines at cheap prices ever again. That is history. It tells you a lot that these companies were bought simply to extinghuish their cheap manufacturing capability. So much for supply and demand and all of the meaningless crap that's always brought up as an excuse for corporate greed. However, when it comes to light plane manufacturing, it is really more of a cottage industry than a corporate thing. The companies building the LSAs are small concerns with very little connection to the commercial aerospace industry -- with the possible exception of Tecnam, which builds components for regional airliners and such. Still, the engine is a major cost of the airplane and it's too bad that the excellent Eastern European manufacturers have been swallowed up and taken out of comission. Perhaps other options will emerge -- like a rotary or auto-based engines. These should be doable under the LSA rules. As far as the cost of materials goes, sheet aluminum is probably the best. The total cost of metal in a Van's kit is probably no more than a couple of thousand bucks. Of course that metal needs to be cut and shaped and bent into shape, and this is in fact where mass production and technologies like CNC come into play. And speaking of Van's, they are probably the best value going in the kit market. You can buy the entire airframe ready to assemble for $15,000 -- and this leaves the company a good profit margin. If you hired someone at $20 an hour to build that airplane, that's only $30,000 if you figure 1500 hours build time. (This is legal in Canada and is spawning something of a mini-industry as people look for alternatives to the high cost of airplane ownership). If you add $20,000 for the cost of an engine and firewall-forward installation, you will have invested about $65,000 -- this is less than the cost of new LSAs, but you are getting a heck of a lot more airplane by any measure. The idea that the pricing of LSAs realistically reflects cost conditions is pure nonsense. But leave it to the magazines to try to pull the wool over our eyes. Regards, Gordon. "Jim Carriere" wrote in message .. . Jimbob wrote: I agree. The thing I am hoping for is economies of scale kick in. We've increased the number of potential buyers from Europe to USA + Europe. I don't think relative demand per unit has increased because snip plane. # seats, stall and max speed are all fixed. Powerplant size can only vary so much otherwise you're shooting youself in the foot. I think the economy of scale kicked in a few years ago for powerplants. The Rotax 912 nearly dominates this segment. Here is an engine whose weight and power are ideal for a 2 seat LSA. It is also modern, light weight, efficient, and about 3/4 the cost of an O-200. The next closest competitors seem to be a mix of O-200, O-235, Continental C-xx, Subaru (if you count non cert). A lot of people think Rotax 2 strokes "saved" the ultralight movement, and the 912 series is the next logical step in that line of engines. Hopefully something similar could evolve with airframes, but other than a few parts like wheels, hardware, paint, instruments, avionics... which are already mass produced, I doubt it. Airframes and engines are like apples and oranges. |
#2
|
|||
|
|||
![]()
On 2005-09-17 14:34:17 -0400, "Gordon Arnaut" said:
The fact that the company that bought the PZL plant immediately stopped production tells you a lot about the business model of the aerospace industry. It is based on low production volume and high profit margin. A lot of the business comes from government contracts and that's the way the industry likes it, as the government is the best customer you can have -- never any complaints about price. Interesting point. Vern Raburn wound up working with a lot of non-aviation-contractors because he finds cost-plus contracting not only inefficient but, quote unquote, "evil." We can see this to some extent in the Rolls Royce acquisition of Walter engines in the Czech Republic. You can be sure we won't be sseing any of the good Walter turbines or LOM piston engines at cheap prices ever again. That is history. Walter was at NBAA, promoting what they call "the other turboprop." Still significantly less to get into a 601P than a PT-6 or R-R 250. I got to practice my Czech on them. Still, the engine is a major cost of the airplane and it's too bad that the excellent Eastern European manufacturers have been swallowed up and taken out of comission. What you had for a brief period was stuff being sold under cost due to the economic dislocations created by the end of the closed Warsaw Pact market. Following your logic to its ultimate conclusion, we should hope that the Chinese start making aero engines and don't ever give up Communism.... this is in fact where mass production and technologies like CNC come into play. If you are smaller than Van's -- and every maker is -- then you can't exploit such economies of scale. The tooling cost needs to amortized over a production run of some kind. And speaking of Van's, they are probably the best value going in the kit market. You can buy the entire airframe ready to assemble for $15,000 -- and this leaves the company a good profit margin. Not sure about the size of Van's profit margin -- enough to survive, I think. One reason Van's costs are low is that he uses overseas labour to assemble the QB kits. Again, you need to be of a certain size for it to be worth your while to do that, and as economic conditions improve in the nations where Van's assembly work is done, he will face the choice of raising prices or relocating production again to another distressed nation. If you hired someone at $20 an hour to build that airplane, that's only $30,000 if you figure 1500 hours build time. (This is legal in Canada and is spawning something of a mini-industry as people look for alternatives to the high cost of airplane ownership). It is not legal in the US for amateur-built aircraft (see dictionary, "amateur.") The US regulations say that you can build for education or recreation. I dunno about you, but I paid my mechanics significantly more then $20 when I had a repair station. Also, for a real employee, wage is only about half the cost. this is less than the cost of new LSAs, but you are getting a heck of a lot more airplane by any measure. Depends on the LSA. Float Planes and Amphibians was selling a Drifter on amphib floats with radio and mode-C for $45k. Less profit in that than in an SUV at the same price, for both manufacturer and dealer. The only way people get a reasonable Van's airplane flying at under about $60k is by valuing their labour at $0. The idea that the pricing of LSAs realistically reflects cost conditions is pure nonsense. But leave it to the magazines to try to pull the wool over our eyes. If there was this great delta between costs and prices, some hero would go sailing in there and build his market share. The fact that no one has done so, in a fundamentally free market, indicates that prices are either reasonable, or being set by a cartel. Given the dozens of producers, a cartel is unlikely to say the least. cheers -=K=- Rule #1: Don't hit anything big. |
#3
|
|||
|
|||
![]()
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1 Kevin O'Brien, Interesting posts. I wonder if you would agree with me that the kit/small GA builders have wrung most of the fat out of the building process and that any further gains are in incremental productivity / materials handling procedures? If so, I wonder what you think could be realized in savings over the current processes? Evan -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFDeM0ppxCQXwV2bJARAlflAJ9fDuXBtRc/PgR0N8Yot0mkMldmPwCcDgnP LBMsIhUllS8z4hGgfHOy8CU= =5X3d -----END PGP SIGNATURE----- |
#4
|
|||
|
|||
![]()
On 2005-11-14 12:45:14 -0500, Evan Carew said:
Interesting posts. I wonder if you would agree with me that the kit/small GA builders have wrung most of the fat out of the building process I'm not sure that's the case, because we're in the midst of several real industrial revolutions -- materials, automation, organizational. These add up to the possibility that we will see, someday soon, airplanes assembled on a line-production rather than a bespoke basis. If you've ever tried to fit a factory airframe part (that cost an arm and a leg) to a Beech, you know what I mean. and that any further gains are in incremental productivity / materials handling procedures? If so, I wonder what you think could be realized in savings over the current processes? I know that everyone who's seen the Eclipse plant (including Dale Klapmeier) has been agog. The problem in the kit field is manifold: 1. Barriers to entry are almost nil. You can rivet up some tubes or cut some foam, blow a couple grand on a booth at Oshkosh and you are a kit manufactuer. And God help your customers. In fact, you can skip the tubes or foam and just show up at OSH with a computer rendering or a shiny model. Even if you have a degree from a top AeroE program, certified aircraft makers are not going to be interested in your design ideas. If you start off in the kit market, no matter how flaky your idea, somebody will try to buy it from you, if you can support yourself long enough. 2. For many, the kit airplane dream is built on a myth of vastly lowered cost. Only if you ignore used aircraft, and value your labour at a factor of zero. 3. Some companies try to drive the labor cost down towards zero by doing work offshore. Van's does this, and Bearhawk frames are welded-up in Mexico (which combines Third World wages with easy transportation to US and Canadian first-world destinations). Do that, and you wind up hoping that Mexico stays corrupt so that desperate Mexicans will work for pennies on the dollar... there is no material reason prosperity should stop hard at the Rio Grande, but it does; it's Mexican government and elite policies that cause that. That's an unstable situation that may last 50 or 100 years but won't last forever. But the irreducible problem with lowering labor costs on the kit side is that by law, you only get half of the benefit, because the ultimate registrant must (under the law, must) do 51% of the work. 4. Many people in the kit field want to build, but my impression is that more want to fly. Hence the popularity of "builder-assist" programs, which are now getting a hairy eyeball from the FAA after about a decade of abuses. One vendor rubbed the FAA's nose in his disdain for the law, which is never really smart, and now a bunch of people who were minding their own business and making for safe aircraft and happy customers are at risk. 5. Many of the designers out there have a design bug or three that they have to get out of the system, so they don't mind working for nothing but job satisfaction. You can even build a small team of like-minded volunteers. But you reach the point where this structure does not scale... you run out of True Believers sooner rather than later. To return to your question -- I do not think productivity in this industry is anywhere near where it could be, but the economics haven't been compelling enough to make anyone chase higher productivity, with the couple of exceptions noted. Sometimes people have mistaken getting wrapped around the axle of CAD, for increasing productivity. Two projects that were going to revolutionize the sport via CAD were the Prescott Pusher, and the DreamWings Valkyrie. Worth a search through the back threads of this group. I presume the CAD files of those two ghastly projects are still sitting in somebody's closet... for the sake of pilots yet unborn I pray that the guy's mother throws them out next time she cleans. cheers -=K=- Rule #1: Don't hit anything big. |
#5
|
|||
|
|||
![]()
Kevin O'Brien wrote:
4. Many people in the kit field want to build, but my impression is that more want to fly. Hence the popularity of "builder-assist" programs, All good points. One thing I'd like to add is that to a novice, kit-built is a less intimidating first project than plans-built. Of course, "knowing what I know now..." For example, the different kinds of builder support available for plans-built (EAA chapters, online groups), there is no such thing as a plans-built company getting behind on parts delivery or going bankrupt, and finally plans-built construction time isn't necessarily greatly increased from kit-built (several sub-kits for popular designs are available from the major homebuilder companies like Aircraft Spruce and Wicks). And of course, again, these things are actually well documented on, oh, say, this newsgroup, Ron W's book... ![]() |
#6
|
|||
|
|||
![]()
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1 Kevin O'Brien wrote: On 2005-11-14 12:45:14 -0500, Evan Carew said: Interesting posts. I wonder if you would agree with me that the kit/small GA builders have wrung most of the fat out of the building process I'm not sure that's the case, because we're in the midst of several real industrial revolutions -- materials, automation, organizational. These add up to the possibility that we will see, someday soon, airplanes assembled on a line-production rather than a bespoke basis. Possibly, that is if you can afford the initial cost of 3D CAD & fixturing at your local manufacturing house. I currently make water treatment eq & typically spend ~ $8K / smallish device with moderate complexity to have the CAD work done. This would translate to a typical wing or fuse model in fiberglass with the moving parts ( metal models of the same structures would no doubt cost more). These same parts I have made up on CAD then cost me ~ $1.2K / unit with ~ $300 in materials costs to be made on CNC machines. I typically have 10 made at a time. The manufacturing house I use (one that typically makes transmissions for GM) tells me that if I go to 100 or more parts at a time, the price per part will come down to ~ $400. If you've ever tried to fit a factory airframe part (that cost an arm and a leg) to a Beech, you know what I mean. and that any further gains are in incremental productivity / materials handling procedures? If so, I wonder what you think could be realized in savings over the current processes? I know that everyone who's seen the Eclipse plant (including Dale Klapmeier) has been agog. Yeah, I've heard. Unfortunately, that tech isn't exactly what the average kit / small GA aircraft manufacturer can afford to include into their process. My understanding is that all of their FSW ops are under CNC control with special fixturing. [snip] To return to your question -- I do not think productivity in this industry is anywhere near where it could be, but the economics haven't been compelling enough to make anyone chase higher productivity, with the couple of exceptions noted. Sometimes people have mistaken getting wrapped around the axle of CAD, for increasing productivity. Two projects that were going to revolutionize the sport via CAD were the Prescott Pusher, and the DreamWings Valkyrie. Worth a search through the back threads of this group. I presume the CAD files of those two ghastly projects are still sitting in somebody's closet... for the sake of pilots yet unborn I pray that the guy's mother throws them out next time she cleans. Yeah well, organization doesn't always translate into producability. On that note, I seem to get a lot of feedback from this group about along exactly those lines. Either the respondents to this thread get hung up on the idea of design & cost, or are stuck on the idea of producing a final product. I can't seem to get anyone to twig to the idea that doing research into processes capable of reducing the labor involved in small parts count (lightly funded) ops has real merit for this interest group. Specifically, summarizing final findings down to a collection of process documents, associated costs, and estimates on final product impact. IF you take a look at the Eclipse site's tech section, its all about process. Every assembly is made so it fits in its assigned place precisely (CAD == known tolerances) and every assembly has an exactly known final assembly cost (manufacturing studies), and the sheet metal is but welded with an exotic process adapted to thin metal aluminum (process innovation). I have to do that for my business in the water quality eq biz, why don't we do it in this biz? If there was someone who was, they'd eat everybody else's lunch... oh wait, isn't that Eclipse? -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFDfR7KpxCQXwV2bJARAk7UAKCHiDsqMvZn9Dx9SLprSZ ph5pBxEwCfYNxQ hhzJWjNBdhlQoDN5MbOKUss= =Sn1w -----END PGP SIGNATURE----- |
#7
|
|||
|
|||
![]()
"Kevin O'Brien" kevin@org-header-is-my-domain-name wrote in message
news:2005111716222375249%kevin@orgheaderismydomain name... But the irreducible problem with lowering labor costs on the kit side is that by law, you only get half of the benefit, because the ultimate registrant must (under the law, must) do 51% of the work. Kevin............ Not true. Please rephrase. Rich S. |
#8
|
|||
|
|||
![]()
On Thu, 17 Nov 2005 16:22:23 -0500, Kevin O'Brien
kevin@org-header-is-my-domain-name wrote: On 2005-11-14 12:45:14 -0500, Evan Carew said: Interesting posts. I wonder if you would agree with me that the kit/small GA builders have wrung most of the fat out of the building process I'm not sure that's the case, because we're in the midst of several real industrial revolutions -- materials, automation, organizational. These add up to the possibility that we will see, someday soon, airplanes assembled on a line-production rather than a bespoke basis. If you've ever tried to fit a factory airframe part (that cost an arm and a leg) to a Beech, you know what I mean. Those parts are custom fit no less:-)) If you replace the cowl, you have to hunt for one at least as long as the one you want to replace. I think the tolerance in length is over half an inch. and that any further gains are in incremental productivity / materials handling procedures? If so, I wonder what you think could be realized in savings over the current processes? I know that everyone who's seen the Eclipse plant (including Dale Klapmeier) has been agog. The problem in the kit field is manifold: 1. Barriers to entry are almost nil. You can rivet up some tubes or cut some foam, blow a couple grand on a booth at Oshkosh and you are a kit manufactuer. And God help your customers. In fact, you can skip the tubes or foam and just show up at OSH with a computer rendering or a shiny model. Even if you have a degree from a top AeroE program, certified aircraft makers are not going to be interested in your design ideas. If you start off in the kit market, no matter how flaky your idea, somebody will try to buy it from you, if you can support yourself long enough. 2. For many, the kit airplane dream is built on a myth of vastly lowered cost. Only if you ignore used aircraft, and value your labour at a factor of zero. If you stick with a very basic design with a real build time of around 500 hours (there aren't many) you really can save. Build a G-III, Lancair, or any one of the other high performance birds and you could easily purchase a really nice F-33 Bo for what you'll have in it, not counting labor. Purchase a fast build G-III kit, at roughly 80K, New K1A5 300 HP IO-540 for another 40 to 50K, (50K might include the prop on special) and at least another 30K for avionics although you could go with the Full house Garmin set up with MFDs up to 75K for all the avionics which brings the total to ... a bit over $200,000 plus labor and there is a *lot* of that in a G-III. Go with a Lancair IV-P and you can easily drop a quarter million into it. Sure you can cut corners, go with an old engine and prop, simple used avionics, don't go with the fast build options, or find a kit setting in some ones garage but you can add at least a 1000 hours to the build time. OTOH the G-III is one of the most labor intensive kits out there. But these are planes pilots built to go places or for serious playing. Like the hybrid cars. They are not economy projects, nor are they cheap to operate. We have two Sonex, (one that looks much like a Sonex with a bubble canopy..for which I've forgotten the name), kit foxes, Jabaru, Long EZ, and some others that did not require a fortune, and are VFR only. The build times vary widely but most with the exception of the LongEZ had relatively short build times. They have various missions, but all are relatively economical to own and operate. 3. Some companies try to drive the labor cost down towards zero by doing work offshore. Van's does this, and Bearhawk frames are welded-up in Mexico (which combines Third World wages with easy transportation to US and Canadian first-world destinations). Do that, and you wind up hoping that Mexico stays corrupt so that desperate Mexicans will work for pennies on the dollar... there is no material reason prosperity should stop hard at the Rio Grande, but it does; it's Mexican government and elite policies that cause that. That's an unstable situation that may last 50 or 100 years but won't last forever. But the irreducible problem with lowering labor costs on the kit side is that by law, you only get half of the benefit, because the ultimate registrant must (under the law, must) do 51% of the work. I keep hearing that, but I've never found it. It's not the ultimate registrant either unless he, or she is after the repairman's certificate. The project is supposed to be educational and a learning experience and they figure if you build one aileron you know how to do the other one. If you figure the actual labor there are a number of kits that the FAA considers acceptable where you do not do 51% of the work, particularly with the builder assist programs. 4. Many people in the kit field want to build, but my impression is that more want to fly. Hence the popularity of "builder-assist" programs, which are now getting a hairy eyeball from the FAA after about a decade of abuses. One vendor rubbed the FAA's nose in his disdain for the law, which is never really smart, and now a bunch of people who were minding their own business and making for safe aircraft and happy customers are at risk. 5. Many of the designers out there have a design bug or three that they have to get out of the system, so they don't mind working for nothing but job satisfaction. You can even build a small team of like-minded volunteers. But you reach the point where this structure does not scale... you run out of True Believers sooner rather than later. To return to your question -- I do not think productivity in this industry is anywhere near where it could be, but the economics haven't been compelling enough to make anyone chase higher productivity, with the couple of exceptions noted. There is a lot of room to speed things up with advanced composites but although that may speed things up and reduce labor it may not make things less expensive. More use of Pre-preg is one place, fast curing on assembly lines. "spinning" fuselages and other parts. Roger Halstead (K8RI & ARRL life member) (N833R, S# CD-2 Worlds oldest Debonair) www.rogerhalstead.com Sometimes people have mistaken getting wrapped around the axle of CAD, for increasing productivity. Two projects that were going to revolutionize the sport via CAD were the Prescott Pusher, and the DreamWings Valkyrie. Worth a search through the back threads of this group. I presume the CAD files of those two ghastly projects are still sitting in somebody's closet... for the sake of pilots yet unborn I pray that the guy's mother throws them out next time she cleans. cheers -=K=- Rule #1: Don't hit anything big. |
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Washington DC airspace closing for good? | tony roberts | Piloting | 153 | August 11th 05 12:56 AM |
Enjoy High Quality incredible low cost PC-to-phone and broadband phone services | John | Home Built | 0 | May 19th 05 02:58 PM |
Boeing Boondoggle | Larry Dighera | Military Aviation | 77 | September 15th 04 02:39 AM |
Fwd: [BD4] Source of HIGH CHTs on O-320 and O-360 FOUND! | Bruce A. Frank | Home Built | 1 | July 4th 04 07:28 PM |
Could it happen he The High Cost of Operating in Europe | Larry Dighera | Piloting | 5 | July 14th 03 02:34 AM |