---------------------------------------------------------- RV-List Digest Archive --- Total Messages Posted Sun 06/05/05: 27 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:22 AM - RV-8 QB Aileron bracket (Brian) 2. 08:32 AM - off-center induction (sarg314) 3. 08:52 AM - Another RV in Tx (Charles Heathco) 4. 09:57 AM - Re: AOA Patents??? () 5. 10:15 AM - optimum altitude for flight planning (Randy Garrett) 6. 10:33 AM - Re: off-center induction (Terry Watson) 7. 10:48 AM - Re: Was AOA patents (EMAproducts@aol.com) 8. 12:03 PM - Re nose-gear cowl interface (elsa-henry) 9. 12:21 PM - Re: Re: Was AOA patents (Matt Johnson) 10. 01:08 PM - Re: AOA Patents??? (gert) 11. 02:08 PM - Re: RV-8 QB Aileron bracket (Craig) 12. 02:16 PM - Re: Re: Was AOA patents (Wayne Glasser) 13. 03:10 PM - Re: RV 7 Slider rear skirts (Albert Gardner) 14. 04:53 PM - RV4 for sale (Scott Brown) 15. 06:54 PM - Re: Dynon AOA (Richard E. Tasker) 16. 07:12 PM - Re: CHT's....... how high is high? (Brian Alley) 17. 07:19 PM - A question for the paint experts (Mark Schrimmer) 18. 07:23 PM - Re: optimum altitude for flight planning (Richard Reynolds) 19. 07:24 PM - Re: optimum altitude for flight planning (Doug Rozendaal) 20. 08:02 PM - Re: Dynon AOA (David Fenstermacher) 21. 08:12 PM - Grand Champion RV6 for sale (RGray67968@aol.com) 22. 08:21 PM - Re: Dynon AOA (Charlie England) 23. 09:00 PM - Re: CHT's....... how high is high? (Dave Bristol) 24. 09:30 PM - Re: Dynon AOA (Matt Johnson) 25. 10:01 PM - Re: Dynon AOA (not processed: message from valid local sender) (Wayne Glasser) 26. 10:13 PM - Re: New to the group (HCRV6@aol.com) 27. 10:38 PM - Re: Dynon AOA (Mickey Coggins) ________________________________ Message 1 _____________________________________ Time: 08:22:10 AM PST US From: "Brian" Subject: RV-List: RV-8 QB Aileron bracket --> RV-List message posted by: "Brian" I tried to rivet the outboard aileron bracket to the wind of my QB-8 yesterday and noticed a problem. The pre-drilled holes for the rivets joining the bracket to rear spar are too close to the tab of the last rib resulting in a "step" in the shop head. Anybody else noticed this? Do I have to take everything a part and shave the rib a little? Thanks for any help. Brian Brian Duncan RV-8A QB ________________________________ Message 2 _____________________________________ Time: 08:32:23 AM PST US From: sarg314 Subject: RV-List: off-center induction --> RV-List message posted by: sarg314 My IO360-B2B (vertical induction) mounts the AFP fuel controller off to the left a bit, which I gather is normal. My circa 1999 Van's manual seems to indicate that the induction scoop should be mounted in the center of the lower cowling and the FAB should angle to the right a bit to link up to it. I believe I recall that some folks actually mount the induction scoop off center to line up with the carb/fuel controller. Which is best, or does it not make much difference. I favor centering the scoop. -- Tom Sargent, RV-6A, cowling. ________________________________ Message 3 _____________________________________ Time: 08:52:41 AM PST US From: "Charles Heathco" Subject: RV-List: Another RV in Tx --> RV-List message posted by: "Charles Heathco" Im going off the air in a few min, Have Tweetybird hangered at Beorne Stage, hope to back on the air before too long, Charlie Heathco ________________________________ Message 4 _____________________________________ Time: 09:57:39 AM PST US From: Subject: Re: RV-List: AOA Patents??? --> RV-List message posted by: Matt: Your 1/2 right, using differential pressure is not new. There are NACA papers on methods for determining AOA / Stall from the 40's. In the wind tunnel scaled airfoils are fitted with "pressure taps" to determine the pressure distribution. Also as an experimental you can try anything for the sake of flight test. Here is a device by rosemont for flight test AOA. http://raf.atd.ucar.edu/Bulletins/bulletin21.html As far as airliners/jets, they do not use diff pressure for AOA. All the ones I have flown (Citation, Fairchild, Boeing) use an AOA vane, which is not much different than a weather vane on top of the Barn, except it has a potentiometer attached to it. It does not use differential pressure. BTW Rite angle makes a low cost experimental vane type AOA gage. From what I have seen there are many ways to get the job done (AOA measurement) and some are very creative, but the vane and diff pressure is the most practical for us. There are three players in the diff press AOA game: LRI, AFS and Dynon. I am not a patient lawyer or did I sleep in a Holiday express last night but I doubt there will be any legal fall out. Also I posted a way to make your own AOA for $60 last week. Cheers George Time: 10:28:03 PM PST US From: "Matt Johnson" Subject: RV-List: AOA Patents??? (not processed: message from valid local sender) --> RV-List message posted by: "Matt Johnson" I have built an AOA that uses differential pressure. It is interesting that you mention violating AFS or Dynon's patents since I know that the process of using differential pressure to determine AOA is not new. The airlines all use it. What exactly is AFS patent for? - Matt -----Original Message----- From: "Doug Rozendaal" Subject: Re: RV-List: Dynon AOA > --> RV-List message posted by: "Doug Rozendaal" > > My understanding is a patent prevents someone from building, selling or > "using" a patented invention. The rub is, unless you build or sell the > invention, the damages would be so small from infringement that the > cost of > enforcing the patent would far outweigh the damages. > > If I am correct, then you are practically right, but technically wrong. > > Tailwinds, > Doug Rozendaal > Do not archive > > > > > RobHickman@aol.com wrote: > > > > Patents don't prevent me from building a patented design and using it > > for myself, it just prevents me from building it and selling it. I > > could be wrong about that, but I don't think so. > > > > > > > > ________________________________ Message 5 _____________________________________ Time: 10:15:57 AM PST US From: "Randy Garrett" Subject: RV-List: optimum altitude for flight planning --> RV-List message posted by: "Randy Garrett" Does anyone know of a free or online tool that will determine the optimum altitude for a flight using winds aloft data? I know a couple of commercial flight planning tools do that, but I don't really want to buy a whole package for just one function. Ideally, the software would take the start and end points, calculate the great circle distance, pull the winds aloft data from DUATS, use RV-6A (in my case) performance data, and tell me the best altitude. I realize winds aloft data is not precise, but it's a place to start. Thanks, Randy RV-6A 550 hours ________________________________ Message 6 _____________________________________ Time: 10:33:38 AM PST US From: "Terry Watson" Subject: RE: RV-List: off-center induction --> RV-List message posted by: "Terry Watson" I am just finishing up my Filtered Air Box & cowling installation on my RV-8A with a Superior/Aero Sport Power IO-360-b1b with Airflow Performance fuel injection. My finish kit came with the oval plate that mounts the top of the FAB to the Airflow Performance fuel metering box, and another anodized one came with my engine, but I had to make about three more before I got the FAB offset back toward the centerline enough to clear the inside of cowl air scoop. If I offset it enough to come close to centering it in the scoop, there it didn't leave enough room on one side of the FAB for the filter. I ended up offsetting the hole in the oval plate 3/8" from the parts that came from Van's and with the engine. I think it also angles slightly to the scoop inlet. Since there were several reports of the plate cracking, I made the new ones out of heavier aluminum plate. Terry RV-8A Seattle --> RV-List message posted by: sarg314 My IO360-B2B (vertical induction) mounts the AFP fuel controller off to the left a bit, which I gather is normal. My circa 1999 Van's manual seems to indicate that the induction scoop should be mounted in the center of the lower cowling and the FAB should angle to the right a bit to link up to it. I believe I recall that some folks actually mount the induction scoop off center to line up with the carb/fuel controller. Which is best, or does it not make much difference. I favor centering the scoop. -- Tom Sargent, RV-6A, cowling. ________________________________ Message 7 _____________________________________ Time: 10:48:30 AM PST US From: EMAproducts@aol.com Subject: RV-List: Re: Was AOA patents --> RV-List message posted by: EMAproducts@aol.com --> RV-List message posted by: "Matt Johnson" I have built an AOA that uses differential pressure. It is interesting that you mention violating AFS or Dynon's patents since I know that the process of using differential pressure to determine AOA is not new. The airlines all use it. ~~~Sorry Matt, in my over 25 years flying aircarrier aircraft I saw a Vane outside and below the cockpit windows. I've got lots of photos of these vanes on everything from Fairchild F-27 to Douglas & Boeing aircarrier aircraft plus the military. Have a look at Oshkosh if you are there, they measure the actual airflow, not a pressure derived AOA. Ask any aircarrier pilot, including Jim Frantz, designer of the AFS system, he also is Air Carrier if they had a vane for the AOA. Elbie Mendenhall Retired AA Capt. EMA, LLC, mfg of the RiteAngle, we use a vane like the airliners do. www.riteangle.com ________________________________ Message 8 _____________________________________ Time: 12:03:42 PM PST US From: "elsa-henry" Subject: RV-List: Re nose-gear cowl interface --> RV-List message posted by: "elsa-henry" Hi Greg, >I'm wrapping up my RV-6A finally! I can't find "Figure" >10-10 in my RV6/6A instructions (which are eight years >old by now). Am I missing anything earth shattering--- I think you had a a bad choice of words when you wrote "Figure" above! My instruction book ( which is ten years old) shows on page 10-10, SK 82, the set-up for checking the nose wheel fork breakout force. The text continues on page 10-11 (for the whole page) giving instructions how to manage the slot that must be cut in the cowl to allow its installation and removal. I built the plates as shown in SK 81 on page 10-12 and that works out OK. (Maybe you are missing these 2 pages?--if so I can scan copies and send them to you). However, I didn't bother to make the the sculptured fairing to go around the leg as described.The slot has to be extended forward to alow the cowl installation to clear the leg as it is brought into place and to clear the prop spinner. I made a seperate plate to close that slot once the cowl is installed, held in place with 4 6-32 screws into nut-plates in the cowl. Cheers!--Henry Hore --C-GELS ________________________________ Message 9 _____________________________________ Time: 12:21:52 PM PST US From: "Matt Johnson" Subject: Re: RV-List: Re: Was AOA patents (not processed: message from valid local sender) --> RV-List message posted by: "Matt Johnson" Okay, I am wrong then, but I still hold that the concept behind using a pressure differentail sensor for determining AOA can not be patentable as it has been around for a long time and many people are doing it. I wonder if AFS holds a patent how Dynon can be doing it too... -----Original Message----- From: EMAproducts@aol.com Subject: RV-List: Re: Was AOA patents > --> RV-List message posted by: EMAproducts@aol.com > > > --> RV-List message posted by: "Matt Johnson" > > I have built an AOA that uses differential pressure. It is interesting > that you mention violating AFS or Dynon's patents since I know that > the process of using differential pressure to determine AOA is not new. > The airlines all use it. > ~~~Sorry Matt, in my over 25 years flying aircarrier aircraft I saw a > Vane > outside and below the cockpit windows. I've got lots of photos of > these vanes > on everything from Fairchild F-27 to Douglas & Boeing aircarrier > aircraft plus > the military. Have a look at Oshkosh if you are there, they measure the > actual > airflow, not a pressure derived AOA. > Ask any aircarrier pilot, including Jim Frantz, designer of the AFS > system, > he also is Air Carrier if they had a vane for the AOA. > Elbie Mendenhall > Retired AA Capt. > EMA, LLC, mfg of the RiteAngle, we use a vane like the airliners do. > www.riteangle.com > > > > > > ________________________________ Message 10 ____________________________________ Time: 01:08:09 PM PST US From: gert Subject: Re: RV-List: AOA Patents??? --> RV-List message posted by: gert Sport Aviation january 1979, page43, Ron Scott had an article on how to make a differentional AOA.using an old airspeed indicator. gmcjetpilot@yahoo.com wrote: >--> RV-List message posted by: > > >Matt: > > >Your 1/2 right, using differential pressure is not new. There are NACA papers on methods for determining AOA / Stall from the 40's. In the wind tunnel scaled airfoils are fitted with "pressure taps" to determine the pressure distribution. Also as an experimental you can try anything for the sake of flight test. > > >Here is a device by rosemont for flight test AOA. > >http://raf.atd.ucar.edu/Bulletins/bulletin21.html > > >As far as airliners/jets, they do not use diff pressure for AOA. All the ones I have flown (Citation, Fairchild, Boeing) use an AOA vane, which is not much different than a weather vane on top of the Barn, except it has a potentiometer attached to it. It does not use differential pressure. BTW Rite angle makes a low cost experimental vane type AOA gage. > > >>From what I have seen there are many ways to get the job done (AOA measurement) and some are very creative, but the vane and diff pressure is the most practical for us. > > >There are three players in the diff press AOA game: LRI, AFS and Dynon. I am not a patient lawyer or did I sleep in a Holiday express last night but I doubt there will be any legal fall out. Also I posted a way to make your own AOA for $60 last week. > > >Cheers George > >Time: 10:28:03 PM PST US >From: "Matt Johnson" >Subject: RV-List: AOA Patents??? > (not processed: message from valid local sender) >--> RV-List message posted by: "Matt Johnson" >I have built an AOA that uses differential pressure. It is interesting >that you mention violating AFS or Dynon's patents since I know that >the process of using differential pressure to determine AOA is not new. >The airlines all use it. >What exactly is AFS patent for? >- Matt > > >-----Original Message----- >From: "Doug Rozendaal" >Subject: Re: RV-List: Dynon AOA > > >>--> RV-List message posted by: "Doug Rozendaal" >> >> > > > >>My understanding is a patent prevents someone from building, selling >> >> >or > > >>"using" a patented invention. The rub is, unless you build or sell >> >> >the > > >>invention, the damages would be so small from infringement that the >>cost of >>enforcing the patent would far outweigh the damages. >> >>If I am correct, then you are practically right, but technically >> >> >wrong. > > >>Tailwinds, >>Doug Rozendaal >>Do not archive >> >> >> >>>RobHickman@aol.com wrote: >>> >>>Patents don't prevent me from building a patented design and using >>> >>> >it > > >>>for myself, it just prevents me from building it and selling it. I >>>could be wrong about that, but I don't think so. >>> >>> >>> >> >> >> >> >> >> > > > > -- is subject to a download and archival fee in the amount of $500 ________________________________ Message 11 ____________________________________ Time: 02:08:36 PM PST US From: Craig Subject: Re: RV-List: RV-8 QB Aileron bracket --> RV-List message posted by: Craig Brian, It turns out I did that just last week. I did not have any problem with rib interference. The shop heads came right up to the edge of the rib, but there was no interference or deformation of the rivet. Craig RV8AQB wings ________________________________ Message 12 ____________________________________ Time: 02:16:08 PM PST US From: "Wayne Glasser" Subject: Re: RV-List: Re: Was AOA patents --> RV-List message posted by: "Wayne Glasser" The principle of measuring AOA from differential pressure has been around for many years as most have now realised. What you will probably find is that the AFS patent only covers some new aspect such as how they process or display the data not the basic principle. As the database of information grows exponentially it is impossible for a patent examiner to cover all the knowledge base and patents do get issued in error. Has anyone actually seen the claim that Dynon are patenting their system or is that just a rumour? Wayne ----- Original Message ----- From: "Matt Johnson" Subject: Re: RV-List: Re: Was AOA patents (not processed: message from valid local sender) > --> RV-List message posted by: "Matt Johnson" > > Okay, I am wrong then, but I still hold that the concept behind using a > pressure differentail sensor for determining AOA can not be > patentable as it has been around for a long time and many people are doing > it. > > I wonder if AFS holds a patent how Dynon can be doing it too... > > > -----Original Message----- > From: EMAproducts@aol.com > To: rv-list@matronics.com > Date: Sun, 5 Jun 2005 13:47:21 EDT > Subject: RV-List: Re: Was AOA patents > >> --> RV-List message posted by: EMAproducts@aol.com >> >> >> --> RV-List message posted by: "Matt Johnson" >> >> I have built an AOA that uses differential pressure. It is interesting >> that you mention violating AFS or Dynon's patents since I know that >> the process of using differential pressure to determine AOA is not new. >> The airlines all use it. >> ~~~Sorry Matt, in my over 25 years flying aircarrier aircraft I saw a >> Vane >> outside and below the cockpit windows. I've got lots of photos of >> these vanes >> on everything from Fairchild F-27 to Douglas & Boeing aircarrier >> aircraft plus >> the military. Have a look at Oshkosh if you are there, they measure the >> actual >> airflow, not a pressure derived AOA. >> Ask any aircarrier pilot, including Jim Frantz, designer of the AFS >> system, >> he also is Air Carrier if they had a vane for the AOA. >> Elbie Mendenhall >> Retired AA Capt. >> EMA, LLC, mfg of the RiteAngle, we use a vane like the airliners do. >> www.riteangle.com >> >> >> >> >> >> > > > ________________________________ Message 13 ____________________________________ Time: 03:10:53 PM PST US From: "Albert Gardner" Subject: RE: RV-List: RV 7 Slider rear skirts --> RV-List message posted by: "Albert Gardner" If the aft part of the canopy is higher than the surface of the fuselage it will be hard to get a good fit. If that isn't the case here, sometimes you can use a set of rollers to put a lengthwise curl or twist in the rear skirt to help it press down against the fuselage. Albert Gardner RV-9A Yuma, AZ -----Original Message----- Stan Jones wrote: >--> RV-List message posted by: "Stan Jones" >Fitting the rear skirts, I can get it just fine until I get to the bottom >six inches. >I get it sitting on the Fuse, and the side skirts pop out, and then I have >it fitting fine with the side skirt, and the >rear skirt pops off the Fuse. It's the compound curve is the problem. >I need some advice from those who have achieved a reasonable result. >Stan Jones. N.Z. > I've got the same results, I'm about ready to call them done with 1/4" gap at the back bottom edge of the rear skirts. I can't seem to find anything to make it better. I'll use weather stipping of some type inside to help seal the air gap. I did use a metal shrinker of the top frt. edge to help it fit better. Not sure if I want to try that on the rear bottom though. ________________________________ Message 14 ____________________________________ Time: 04:53:48 PM PST US From: "Scott Brown" Subject: RV-List: RV4 for sale --> RV-List message posted by: "Scott Brown" Listers, I have decided to put my RV4 up for sale. I have babied and improved this bird since the day that I purchased it. The following is some info on it and most of the things that I have done to it. Engine: AEIO-360, Approx 650 hours on it Prop: Hartzel Constant Speed When I purchased the airplane it was configured as per most RV4s. I have added a lengthened baggage area that extends back approximately 4 feet. This area allows for lighter items to be placed to the rear while heavier items to be placed further forward, or allows for carriage of longer items such as fishing poles, scooters (go-ped). I have replaced the Vans fuel selector valve with the Andair Fuel selector valve and have replaced all fuel lines with braided stainless lines. Almost all metal parts in the cockpit have been powder coated dove gray, including the instrument panel. I have built a new electrical switch panel with all new breakers and breaker/switches. I replaced the Vans cowl with a new Sam James cowl with the Sam James fiberglass plenum chamber. I really like that cowl. I had pretty substantial speed increases with the new setup. (Thanks Sammy) Recently I have purchased new Sam James wingroot fainrings. These are in the process of being installed. The aircraft is also being painted as I write this AD. I replaced the fiberglass gearleg intersection fairings with custom fiberglass ones, they look really awesome. The battery was replaced about a year ago. The engine is from a pitts. The oil inverted kit was removed and I no longer have it. I have replaced the throttle, mixture, and prop cables, with all new bracketry, as well as a new throttle quadrant installed. New interior has been done, and new seats are in the process of being made. Airplane is a night VFR bird. Due to the type of engine that is in this plane and the type of prop, and the new cowl, it is a very fast RV4. WOW! What a rush!! Asking price is $65k. Any questions, please contact me offline at cptbuzz@adelphia.net . Cheers! Scott ________________________________ Message 15 ____________________________________ Time: 06:54:10 PM PST US From: "Richard E. Tasker" Subject: Re: RV-List: Dynon AOA --> RV-List message posted by: "Richard E. Tasker" I am not a lawyer, but I do know that a patent does not prevent you in any way from making something either exactly like what the patent does or something that uses or adapts the patented idea as long as it is for your own use or is not sold for profit. All the patent does is prevent you from legally building and selling the patented device or idea. That is, you cannot make money from someone else's patent. So, build whatever you want for yourself and don't worry about any patents. Dick Tasker Hal Kempthorne wrote: >--> RV-List message posted by: Hal Kempthorne > >I am all but certain that you are right. Put in in a black box and no one will know. >Is there a lawyer in the house? > >hal > >Chris W <1qazxsw23edcvfr45tgbnhy67ujm@cox.net> wrote: >--> RV-List message posted by: Chris W <1qazxsw23edcvfr45tgbnhy67ujm@cox.net> > >RobHickman@aol.com wrote: > > > >>. . .it would also violate the >>Patents on the AFS AOA System. >> >> >> >> > >Patents don't prevent me from building a patented design and using it >for myself, it just prevents me from building it and selling it. I >could be wrong about that, but I don't think so. > >do not archive > > > ---- Please Note: No trees were destroyed in the sending of this message. We do concede, however, that a significant number of electrons may have been temporarily inconvenienced. ---- ________________________________ Message 16 ____________________________________ Time: 07:12:02 PM PST US From: Brian Alley Subject: Re: RV-List: CHT's....... how high is high? --> RV-List message posted by: Brian Alley Before spending hundreds of dollars and hours labor on a new cowl. Try installing a make shift water manometer to measure the pressure difference above and below the engine baffling. Lycoming recommends between 5.5 and 6.5 inches of water for proper cooling of the 0320. I used a U shaped loop of clear tubing and food color in the water. Lines on a peice of cardboard 1" apart and 1/4" aluminum tubing mounted above and below the engine. Drill a few small holes in the sides of the aluminum tubing and plug the ends. The difference in pressure will displace the water and allow a direct measurement of the pressure drop across the cooling fins. Adjustments can be made to the openings in the baffles at the bottom of the cylinders to obtain the correct pressure differential. My 0320 runs CHT spread of 15 deg at 350-365 in cruise. Good Luck BRIAN ALLEY (N320WT) CARBON FIBER COMPOSITES 101 Caroline Circle Hurricane, WV 25526 304-562-6800 home How are you going to win by a nose if you don't stick out your neck? ________________________________ Message 17 ____________________________________ Time: 07:19:18 PM PST US From: Mark Schrimmer Subject: RV-List: A question for the paint experts --> RV-List message posted by: Mark Schrimmer I'm painting fuselage interior parts with rattle-can enamel from Ace Hardware. The results are reasonably good, but there are always a few spots that could be better. Sometimes the paint splatters just a little, sometimes a dust or dirt settles onto the surface while the paint is drying, sometimes there is slight orange peel. Is there a way to fix minor blemishes in enamel without completely sanding the entire part and starting over? Thank you, Mark Schrimmer Irvine, CA ________________________________ Message 18 ____________________________________ Time: 07:23:14 PM PST US From: Richard Reynolds Subject: Re: RV-List: optimum altitude for flight planning --> RV-List message posted by: Richard Reynolds Try http://adds.aviationweather.noaa.gov/flight_path/ It shows the wind velocity at different altitudes. The brown stuff is "rocks" sometimes called mountains. The instructions for use are somewhat lacking. Richard Reynolds On Jun 5, 2005, at 1:14 PM, Randy Garrett wrote: > --> RV-List message posted by: "Randy Garrett" > > > Does anyone know of a free or online tool that will determine the > optimum > altitude for a flight using winds aloft data? I know a couple of > commercial > flight planning tools do that, but I don't really want to buy a whole > package for just one function. > > > Ideally, the software would take the start and end points, > calculate the > great circle distance, pull the winds aloft data from DUATS, use > RV-6A (in > my case) performance data, and tell me the best altitude. I > realize winds > aloft data is not precise, but it's a place to start. > > > Thanks, > > > Randy > > RV-6A > > 550 hours > > ________________________________ Message 19 ____________________________________ Time: 07:24:55 PM PST US From: "Doug Rozendaal" Subject: Re: RV-List: optimum altitude for flight planning --> RV-List message posted by: "Doug Rozendaal" The ADDS site has a pretty good tool for determining what altitude, and what route, you want to fly. http:\\adds.aviationweather.gov My WX Worx reciever has a similar page and I bet it makes my airplane average about 5 kts faster. The WX Worx uses the RUCS-2 model data and it is incredibly accurate. I have no idea what ADDS uses or if it is accurate. Tailwinds, Doug Rozendaal ----- Original Message ----- From: "Randy Garrett" Subject: RV-List: optimum altitude for flight planning > --> RV-List message posted by: "Randy Garrett" > > Does anyone know of a free or online tool that will determine the optimum > altitude for a flight using winds aloft data? I know a couple of commercial > flight planning tools do that, but I don't really want to buy a whole > package for just one function. > > > Ideally, the software would take the start and end points, calculate the > great circle distance, pull the winds aloft data from DUATS, use RV-6A (in > my case) performance data, and tell me the best altitude. I realize winds > aloft data is not precise, but it's a place to start. > > > Thanks, > > > Randy > > RV-6A > > 550 hours > > ________________________________ Message 20 ____________________________________ Time: 08:02:49 PM PST US From: "David Fenstermacher" Subject: Re: RV-List: Dynon AOA --> RV-List message posted by: "David Fenstermacher" That is absolutely not true. It doesn't matter if you sell it or not. You cannot make, use, or sell..... for financial gain or not. ALthough, as has been pointed out, you probably won't get sued... but you could. Trust me on this - I do patents for a living. Dave do not archive > [Original Message] > From: Richard E. Tasker > To: > Date: 6/5/2005 9:53:11 PM > Subject: Re: RV-List: Dynon AOA > > --> RV-List message posted by: "Richard E. Tasker" > > I am not a lawyer, but I do know that a patent does not prevent you in > any way from making something either exactly like what the patent does > or something that uses or adapts the patented idea as long as it is for > your own use or is not sold for profit. All the patent does is prevent > you from legally building and selling the patented device or idea. That > is, you cannot make money from someone else's patent. > > So, build whatever you want for yourself and don't worry about any patents. > > Dick Tasker > > Hal Kempthorne wrote: > > >--> RV-List message posted by: Hal Kempthorne > > > >I am all but certain that you are right. Put in in a black box and no one will know. > >Is there a lawyer in the house? > > > >hal > > > >Chris W <1qazxsw23edcvfr45tgbnhy67ujm@cox.net> wrote: > >--> RV-List message posted by: Chris W <1qazxsw23edcvfr45tgbnhy67ujm@cox.net> > > > >RobHickman@aol.com wrote: > > > > > > > >>. . .it would also violate the > >>Patents on the AFS AOA System. > >> > >> > >> > >> > > > >Patents don't prevent me from building a patented design and using it > >for myself, it just prevents me from building it and selling it. I > >could be wrong about that, but I don't think so. > > > >do not archive > > > > > > > > ---- > Please Note: > No trees were destroyed in the sending of this message. We do concede, however, > that a significant number of electrons may have been temporarily inconvenienced. > ---- > > ________________________________ Message 21 ____________________________________ Time: 08:12:19 PM PST US From: RGray67968@aol.com Subject: RV-List: Grand Champion RV6 for sale --> RV-List message posted by: RGray67968@aol.com See the ad and the pics here: $116,995 obo http://rv6rick.tripod.com/ohiovalleyrvators/id14.html Rick Gray in Ohio at the Buffalo Farm do not archive ________________________________ Message 22 ____________________________________ Time: 08:21:29 PM PST US From: Charlie England Subject: Re: RV-List: Dynon AOA --> RV-List message posted by: Charlie England David Fenstermacher wrote: >--> RV-List message posted by: "David Fenstermacher" > >That is absolutely not true. >It doesn't matter if you sell it or not. >You cannot make, use, or sell..... for financial gain or not. >ALthough, as has been pointed out, you probably won't get sued... but you >could. > >Trust me on this - I do patents for a living. > >Dave > Oh, I trust you. But surely you won't mind if I verify by asking you to quote chapter & verse from US code. Charlie (I've got this great idea. Can you do me a patent?) ________________________________ Message 23 ____________________________________ Time: 09:00:12 PM PST US From: Dave Bristol Subject: Re: RV-List: CHT's....... how high is high? --> RV-List message posted by: Dave Bristol Or you could come pretty close by using an airspeed indicator. Six inches of water is about 110 MPH, or 5.5 - 6.5 inches of water is 105.5 - 114.6 MPH. And not nearly so messy while you're flying! 8 > ) Dave Brian Alley wrote: >--> RV-List message posted by: Brian Alley > >Before spending hundreds of dollars and hours labor on >a new cowl. Try installing a make shift water >manometer to measure the pressure difference above and >below the engine baffling. Lycoming recommends between >5.5 and 6.5 inches of water for proper cooling of the >0320. I used a U shaped loop of clear tubing and food >color in the water. Lines on a peice of cardboard 1" >apart and 1/4" aluminum tubing mounted above and below >the engine. Drill a few small holes in the sides of >the aluminum tubing and plug the ends. The difference >in pressure will displace the water and allow a direct >measurement of the pressure drop across the cooling >fins. Adjustments can be made to the openings in the >baffles at the bottom of the cylinders to obtain the >correct pressure differential. My 0320 runs CHT spread >of 15 deg at 350-365 in cruise. Good Luck > > >BRIAN ALLEY (N320WT) >CARBON FIBER COMPOSITES >101 Caroline Circle >Hurricane, WV 25526 >304-562-6800 home > > >How are you going to win by a nose if you don't stick out your neck? > > > > ________________________________ Message 24 ____________________________________ Time: 09:30:56 PM PST US From: "Matt Johnson" Subject: Re: RV-List: Dynon AOA (not processed: message from valid local sender) --> RV-List message posted by: "Matt Johnson" So if I am ever interesting in selling the AOA that I have created I guess I will have to fight the patent on some examiners error. One of their claims has to do with connecting the AOA to a microprocessor or something rediculously vague. But maybe it is not an issue if nobody is interesting in buying a better unit that uses animated graphics to display AOA, Best Glide, etc while using variable tone audio warnings as stall approaches and a stick shaker (like the airlines use, gives the same sensation as a cell phone on vibrate) as stall approaches for half the price... - Matt -----Original Message----- From: "Richard E. Tasker" Subject: Re: RV-List: Dynon AOA > --> RV-List message posted by: "Richard E. Tasker" > > > I am not a lawyer, but I do know that a patent does not prevent you in > any way from making something either exactly like what the patent does > or something that uses or adapts the patented idea as long as it is for > your own use or is not sold for profit. All the patent does is prevent > you from legally building and selling the patented device or idea. > That > is, you cannot make money from someone else's patent. > > So, build whatever you want for yourself and don't worry about any > patents. > > Dick Tasker > > Hal Kempthorne wrote: > > >--> RV-List message posted by: Hal Kempthorne > > > > >I am all but certain that you are right. Put in in a black box and no > one will know. > >Is there a lawyer in the house? > > > >hal > > > >Chris W <1qazxsw23edcvfr45tgbnhy67ujm@cox.net> wrote: > >--> RV-List message posted by: Chris W > <1qazxsw23edcvfr45tgbnhy67ujm@cox.net> > > > >RobHickman@aol.com wrote: > > > > > > > >>. . .it would also violate the > >>Patents on the AFS AOA System. > >> > >> > >> > >> > > > >Patents don't prevent me from building a patented design and using it > >for myself, it just prevents me from building it and selling it. I > >could be wrong about that, but I don't think so. > > > >do not archive > > > > > > > > ---- > Please Note: > No trees were destroyed in the sending of this message. We do concede, > however, > that a significant number of electrons may have been temporarily > inconvenienced. > ---- > > > > > > ________________________________ Message 25 ____________________________________ Time: 10:01:38 PM PST US From: "Wayne Glasser" Subject: Re: RV-List: Dynon AOA (not processed: message from valid local sender) --> RV-List message posted by: "Wayne Glasser" Matt Do you have a patent number for Dynon. I would like to clarify their claims Thanks Wayne ----- Original Message ----- From: "Matt Johnson" Subject: Re: RV-List: Dynon AOA (not processed: message from valid local sender) > --> RV-List message posted by: "Matt Johnson" > > So if I am ever interesting in selling the AOA that I have created I guess > I will have to fight the patent on some examiners error. One of > their claims has to do with connecting the AOA to a microprocessor or > something rediculously vague. > > But maybe it is not an issue if nobody is interesting in buying a better > unit that uses animated graphics to display AOA, Best Glide, etc > while using variable tone audio warnings as stall approaches and a stick > shaker (like the airlines use, gives the same sensation as a cell > phone on vibrate) as stall approaches for half the price... > > - Matt > > -----Original Message----- > From: "Richard E. Tasker" > To: rv-list@matronics.com.Gecko/20040803 > Date: Sun, 05 Jun 2005 21:53:00 -0400 > Subject: Re: RV-List: Dynon AOA > >> --> RV-List message posted by: "Richard E. Tasker" >> >> >> I am not a lawyer, but I do know that a patent does not prevent you in >> any way from making something either exactly like what the patent does >> or something that uses or adapts the patented idea as long as it is for >> your own use or is not sold for profit. All the patent does is prevent >> you from legally building and selling the patented device or idea. >> That >> is, you cannot make money from someone else's patent. >> >> So, build whatever you want for yourself and don't worry about any >> patents. >> >> Dick Tasker >> >> Hal Kempthorne wrote: >> >> >--> RV-List message posted by: Hal Kempthorne >> >> > >> >I am all but certain that you are right. Put in in a black box and no >> one will know. >> >Is there a lawyer in the house? >> > >> >hal >> > >> >Chris W <1qazxsw23edcvfr45tgbnhy67ujm@cox.net> wrote: >> >--> RV-List message posted by: Chris W >> <1qazxsw23edcvfr45tgbnhy67ujm@cox.net> >> > >> >RobHickman@aol.com wrote: >> > >> > >> > >> >>. . .it would also violate the >> >>Patents on the AFS AOA System. >> >> >> >> >> >> >> >> >> > >> >Patents don't prevent me from building a patented design and using it >> >for myself, it just prevents me from building it and selling it. I >> >could be wrong about that, but I don't think so. >> > >> >do not archive >> > >> > >> > >> >> ---- >> Please Note: >> No trees were destroyed in the sending of this message. We do concede, >> however, >> that a significant number of electrons may have been temporarily >> inconvenienced. >> ---- >> >> >> >> >> >> > > > ________________________________ Message 26 ____________________________________ Time: 10:13:11 PM PST US From: HCRV6@aol.com Subject: Re: RV-List: New to the group --> RV-List message posted by: HCRV6@aol.com In a message dated 6/4/05 9:02:20 AM Pacific Daylight Time, papadaddyo@verizon.net writes: > Several questions if anyone can help. What is the best way to cut the > thicker pieces of stock--->> I bought an inexpensive Craftsman band saw at the start of my RV-6 project and used it throughout to cut everything from 0.025 Al. sheet parts to 1 inch bar stock. A great time saver and one of the most used and useful tools I own. Harry Crosby RV-6 N16CX, 88 hours. ________________________________ Message 27 ____________________________________ Time: 10:38:03 PM PST US From: Mickey Coggins Subject: Re: RV-List: Dynon AOA --> RV-List message posted by: Mickey Coggins > But maybe it is not an issue if nobody is interesting in buying a > better unit that uses animated graphics to display AOA, Best Glide, > etc while using variable tone audio warnings as stall approaches and > a stick shaker (like the airlines use, gives the same sensation as a > cell phone on vibrate) as stall approaches for half the price... You're right - no one would want that. We're all looking for less features for more money! :-) -- Mickey Coggins http://www.rv8.ch/ #82007 Wiring do not archive