---------------------------------------------------------- RV-List Digest Archive --- Total Messages Posted Fri 04/25/08: 11 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:34 AM - Current crop of pitot tubes (Dan Charrois) 2. 04:03 AM - Re: Current crop of pitot tubes (Bob Leffler) 3. 08:43 AM - Re: Wiggly Cotter pins (John Cox) 4. 10:01 AM - Re: Current crop of pitot tubes (William Gill) 5. 10:27 AM - Re: Current crop of pitot tubes (Corey Crawford) 6. 01:14 PM - geared drive ls1 engine (mark vultaggio) 7. 02:20 PM - Re: geared drive ls1 engine (Ed Anderson) 8. 02:42 PM - Re: geared drive ls1 engine (Ron Lee) 9. 03:16 PM - Re: geared drive ls1 engine (Garry) 10. 04:00 PM - Re: Current crop of pitot tubes (Kevin Horton) 11. 04:01 PM - Re: geared drive ls1 engine (SteinAir, Inc.) ________________________________ Message 1 _____________________________________ Time: 01:34:02 AM PST US From: Dan Charrois Subject: RV-List: Current crop of pitot tubes Hi all. I'm working on an RV-10 and am at the point now of considering what kind of pitot tube to put in the thing. The bent aluminum tube idea, though functional, doesn't really appeal to me. Though I'm not an IFR pilot at the moment, I don't intend to remain that way indefinitely, and I'd like to future-proof the plane as much as practical. So I'm looking at putting in a heated pitot. Up until now I've been assuming I'd go with a Gretz pitot - I like the idea of its internal temperature regulation rather than just running at maximum current draw the whole time it's on. But of course now that I'm actually ready to get one it appears as though they're not currently being manufactured and I haven't found anywhere that has them in stock. So what other options could anyone out there suggest? Thanks! Dan -- Syzygy Research & Technology Box 83, Legal, AB T0G 1L0 Canada Phone: 780-961-2213 ________________________________ Message 2 _____________________________________ Time: 04:03:27 AM PST US From: "Bob Leffler" Subject: RE: RV-List: Current crop of pitot tubes I just purchased one from Aircraft Spruce a couple weeks ago, but they appear to be out now. This was posted on the Gretz site: NOTICE: Gretz Aero, LLC, has been forced to stop production of this wonderful product, the GA-1000. The reasons are two-fold. First, I cannot keep up with the current demand for the GA-1000 and second, the company that has been providing the composite molding material has drastically raised their prices and minimum order requirements. I have found another company who can provide the same molding material at a reduced cost and lower minimum order quantities. However, at this point I feel the time has come for me to cut back on my current Gretz Aero workload. I enjoy developing new aviation products. Selling this part of my business would allow me the time to bring some of my ideas into product. I fully expect to continue with the mounting bracket part of the business. If anyone is interested in purchasing the GA-1000 and GA-500 part of my business, I would be willing to negotiate. I can be reached at 208-834-2312 or 208-863-7045. This is too bad. This was a great product. -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Dan Charrois Sent: Friday, April 25, 2008 4:29 AM Subject: RV-List: Current crop of pitot tubes Hi all. I'm working on an RV-10 and am at the point now of considering what kind of pitot tube to put in the thing. The bent aluminum tube idea, though functional, doesn't really appeal to me. Though I'm not an IFR pilot at the moment, I don't intend to remain that way indefinitely, and I'd like to future-proof the plane as much as practical. So I'm looking at putting in a heated pitot. Up until now I've been assuming I'd go with a Gretz pitot - I like the idea of its internal temperature regulation rather than just running at maximum current draw the whole time it's on. But of course now that I'm actually ready to get one it appears as though they're not currently being manufactured and I haven't found anywhere that has them in stock. So what other options could anyone out there suggest? Thanks! Dan -- Syzygy Research & Technology Box 83, Legal, AB T0G 1L0 Canada Phone: 780-961-2213 ________________________________ Message 3 _____________________________________ Time: 08:43:29 AM PST US Subject: RE: RV-List: Wiggly Cotter pins From: "John Cox" I find wiggly cotter pins a lot doing EAA Tech Inspections. There is no standard on experimentals, the owner/builder sets the standard. The AC43-13 wants them tight. The airliners you fly on are all tight. The airline Quality Control Inspector will fail any that are wiggly. We do that by pulling the head down into the fastener, bending the legs against the object and often smacking them with the handle of our pliers. QC always looks for wigglies, correct leg length of cotter pins, correct hardware lash up and often on critical items like engine mounts and landing gear confirm NO Wigglies by using torque seal paint. I always point out the wiggly ones on engine mounts. Guess I must be an AR Tech. John Cox From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of David Leonard Sent: Thursday, April 24, 2008 7:20 AM Subject: Re: RV-List: Wiggly Cotter pins Somebody tell me that I'm not out of my mind with my anal-retentiveness..... Ralph Capen RV6AQB Slider N822AR @ N06 Knocking out the million little things..... Unfortunately Ralph, I think you are out or your mind with A.R. Sorry. They have rehab you know. :-) -- David Leonard Turbo Rotary RV-6 N4VY http://N4VY.RotaryRoster.net http://RotaryRoster.net ________________________________ Message 4 _____________________________________ Time: 10:01:57 AM PST US From: "William Gill" Subject: RE: RV-List: Current crop of pitot tubes The chrome Gretz mount with the Dynon heated pitot or Dynon's heated pitot with angle-of-attack looks very nice...and works great. Bill RV-7 -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Dan Charrois Sent: Friday, April 25, 2008 3:29 AM Subject: RV-List: Current crop of pitot tubes Hi all. I'm working on an RV-10 and am at the point now of considering what kind of pitot tube to put in the thing. The bent aluminum tube idea, though functional, doesn't really appeal to me. Though I'm not an IFR pilot at the moment, I don't intend to remain that way indefinitely, and I'd like to future-proof the plane as much as practical. So I'm looking at putting in a heated pitot. Up until now I've been assuming I'd go with a Gretz pitot - I like the idea of its internal temperature regulation rather than just running at maximum current draw the whole time it's on. But of course now that I'm actually ready to get one it appears as though they're not currently being manufactured and I haven't found anywhere that has them in stock. So what other options could anyone out there suggest? Thanks! Dan -- Syzygy Research & Technology Box 83, Legal, AB T0G 1L0 Canada Phone: 780-961-2213 ________________________________ Message 5 _____________________________________ Time: 10:27:23 AM PST US From: "Corey Crawford" Subject: Re: RV-List: Current crop of pitot tubes Does anyone know if the Dynon pitot with angle-of-attack would connect to/work with an AOA Sport? I'd love to avoid drilling any holes in my QB wings .. -- Corey Crawford RV-7A - Denver, CO On Fri, Apr 25, 2008 at 10:57 AM, William Gill wrote: > > The chrome Gretz mount with the Dynon heated pitot or Dynon's heated > pitot with angle-of-attack looks very nice...and works great. > > Bill > RV-7 > > ________________________________ Message 6 _____________________________________ Time: 01:14:50 PM PST US From: "mark vultaggio" Subject: RV-List: geared drive ls1 engine Hello, I am a lurker of the list and woudl like to hear any thoughts on this firewall forward kit being offered. what are the issues to be considered? I saw it at sun n fun and it looks interesting. Thanks Mark ________________________________ Message 7 _____________________________________ Time: 02:20:14 PM PST US From: "Ed Anderson" Subject: Re: RV-List: geared drive ls1 engine Mark, no attachments on the engine of interest. Do you have a web page or link? Ed ----- Original Message ----- From: mark vultaggio To: rv-list@matronics.com Sent: Friday, April 25, 2008 4:10 PM Subject: RV-List: geared drive ls1 engine Hello, I am a lurker of the list and woudl like to hear any thoughts on this firewall forward kit being offered. what are the issues to be considered? I saw it at sun n fun and it looks interesting. Thanks Mark ________________________________ Message 8 _____________________________________ Time: 02:42:19 PM PST US From: "Ron Lee" Subject: Re: RV-List: geared drive ls1 engine It would help to provide a website. However, I personally would never use a geared engine. It has to run at a very high RPM and may have significant operational issues. I would not buy a plane with such an engine so if that sentiment is widespread you would pay dearly if you ever decide to sell or your market would be very small. Ron Lee ----- Original Message ----- From: mark vultaggio To: rv-list@matronics.com Sent: Friday, April 25, 2008 2:10 PM Subject: RV-List: geared drive ls1 engine Hello, I am a lurker of the list and woudl like to hear any thoughts on this firewall forward kit being offered. what are the issues to be considered? I saw it at sun n fun and it looks interesting. Thanks Mark ________________________________ Message 9 _____________________________________ Time: 03:16:02 PM PST US From: "Garry" Subject: Re: RV-List: geared drive ls1 engine Ron, all Rotax aircraft engines are geared to the prop. They have been running successfully for over 20 years and virtually all LSA planes are using the Rotax 912 "geared" engine.........even Van's RV12. What "operational issues" do you refer to? Garry Stout RV7A, Tampa, FL ----- Original Message ----- From: Ron Lee To: rv-list@matronics.com Sent: Friday, April 25, 2008 5:38 PM Subject: Re: RV-List: geared drive ls1 engine It would help to provide a website. However, I personally would never use a geared engine. It has to run at a very high RPM and may have significant operational issues. I would not buy a plane with such an engine so if that sentiment is widespread you would pay dearly if you ever decide to sell or your market would be very small. Ron Lee ----- Original Message ----- From: mark vultaggio To: rv-list@matronics.com Sent: Friday, April 25, 2008 2:10 PM Subject: RV-List: geared drive ls1 engine Hello, I am a lurker of the list and woudl like to hear any thoughts on this firewall forward kit being offered. what are the issues to be considered? I saw it at sun n fun and it looks interesting. Thanks Mark href="http://www.matronics.com/Navigator?RV-List">http://www.matronics. com/Navigator?RV-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c ________________________________ Message 10 ____________________________________ Time: 04:00:17 PM PST US From: Kevin Horton Subject: Re: RV-List: Current crop of pitot tubes You need to match the pressure source (i.e. the holes, either on the pitot tube, or the wing) to the sensor. So, if you want the Dynon pitot, then you need to use their EFIS to calculate the AOA. If you want the AOA Sport system, you need to put the holes where they tell you to. This is not a plug and play system, where you can mix and match pressure source and sensor, as there are no agreed upon standards for the pressure source. Kevin Horton On 25 Apr 2008, at 18:23, Corey Crawford wrote: > Does anyone know if the Dynon pitot with angle-of-attack would > connect to/work with an AOA Sport? I'd love to avoid drilling any > holes in my QB wings .. > > -- > Corey Crawford > RV-7A - Denver, CO > > > On Fri, Apr 25, 2008 at 10:57 AM, William Gill > wrote: > > The chrome Gretz mount with the Dynon heated pitot or Dynon's heated > pitot with angle-of-attack looks very nice...and works great. > > Bill > RV-7 > ________________________________ Message 11 ____________________________________ Time: 04:01:44 PM PST US From: "SteinAir, Inc." Subject: RE: RV-List: geared drive ls1 engine Hi Mark, For any product that life/limb/safety depends on I'd ask the following questions: 1) What are the performance numbers when installed on the airplane you are selling/marketing it for - and I'm talking REAL WORLD performance/flight numbers. Not "calculated" type numbers? 2) How many hours are on your test RV-10 or any aircraft for that matter (since you're selling and engine package for an RV-10 it must have at least been test flown)? 3) Is your company capitolized enough to handle liability insurance, warranty, etc.. 4) How many have been sold, installed and flying on the airframe that you are marketing it for? 5) What are the approzimate total fleet hours for your engine? 6) Are the funds/deposits held in escrow in case of a refund or used to fund the ongoing business....if no escrow is the business funded off of peoples deposits? I don't mean to sound negative because I think Mr.Warren is a brilliant engineer. That being said, I really get leery about companies marketing stuff for airframes which they've done little to no flight testing on. Next, having been burnt for many thousands of $$'s over the years by well intentioned and also good engineers, I want to see what kind of financial health the company is in....especially when someone is charging 10's of thousands of $$'s for a product and company that literally have zero history. There have been a lot of alternative engine designers selling the next panacea of products...some very well funded and some not so well funded. Note Thielert just went bankrupt in the past day or two and I'm sure with their many millions they too thought they were capitolized well enough...... I do wish him well and like to see people developing alternative products, but as I said before I get really nervous when people are already selling something specifically that has never flown. Perhaps I sound negative and that's not my intention. Those are just serious questions I'd ask any supplier...be it props, engines, PSRU's , fuel injection systems, ignitions, etc.. My 2 cents as usual! Cheers, Stein -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com]On Behalf Of mark vultaggio Sent: Friday, April 25, 2008 3:10 PM To: rv-list@matronics.com Subject: RV-List: geared drive ls1 engine Hello, I am a lurker of the list and woudl like to hear any thoughts on this firewall forward kit being offered. what are the issues to be considered? I saw it at sun n fun and it looks interesting. 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