RV10-List Digest Archive

Sun 12/16/07


Total Messages Posted: 25



Today's Message Index:
----------------------
 
     1. 08:56 AM - collision avoidance (David McNeill)
     2. 09:21 AM - Statistical Sample (John W. Cox)
     3. 11:21 AM - Aeroduct vs. Scat Tubing (Robin Marks)
     4. 11:27 AM - Re: collision avoidance (linn Walters)
     5. 11:54 AM - Re: collision avoidance (AirMike)
     6. 12:21 PM - Re: Aeroduct vs. Scat Tubing (John W. Cox)
     7. 12:24 PM - Re: collision avoidance (David McNeill)
     8. 12:41 PM - Re: collision avoidance (Kelly McMullen)
     9. 02:02 PM - Re: collision avoidance (darnpilot@aol.com)
    10. 02:22 PM - The Greenies are Coming (John W. Cox)
    11. 02:25 PM - Re: collision avoidance (Kelly McMullen)
    12. 02:50 PM - Re: collision avoidance (N212PJ)
    13. 04:15 PM - Re: Aeroduct vs. Scat Tubing (Tim Olson)
    14. 04:50 PM - Re: Aeroduct vs. Scat Tubing (JSMcGrew@aol.com)
    15. 05:07 PM - wing tip  (Chris Hukill)
    16. 05:22 PM - Re: wing tip  (Ralph E. Capen)
    17. 05:26 PM - Re: Aeroduct vs. Scat Tubing (John W. Cox)
    18. 05:38 PM - Re: wing tip  (Bob-tcw)
    19. 06:08 PM - Re: oil canning. (johngoodman)
    20. 06:10 PM - Re: wing tip (Tim Olson)
    21. 06:10 PM - wingtip (Bob-tcw)
    22. 06:10 PM - wingtip (Bob-tcw)
    23. 06:39 PM - oil canning. (John Gonzalez)
    24. 07:54 PM - Re: Re: oil canning. (David McNeill)
    25. 08:19 PM - Re: Aeroduct vs. Scat Tubing (Indran Chelvanayagam)
 
 
 


Message 1


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    Time: 08:56:04 AM PST US
    From: "David McNeill" <dlm46007@cox.net>
    Subject: collision avoidance
    After two near misses in or above the CHD class D within the last three months, I would like to hear from anyone who uses the Zaon MRX or XRX. I currently have the MRX and it provides distance and relative altitude separation. Bearing it lacks. The XRX is supposed to provide all. On both misses, I believe the MRX got my attention (although I don't specifically recall) and I spotted traffic between 11:45 and 12:15 at 1/4 mile and eithor <100 above and >100<200 below me. In one instance I jammed the stick forward and lifted the tool box in the rear from the floor. On both occasions I was monitoring CHD tower and no advisories were issued. From what I could tell both of the other aircraft were missed approachs or departures from CHD. When traveling through or above CHD class D, I advise "don't expect anything from CHD tower" and reduce to maneuvering speed. Incidentially I am currently flying the Glastar but will put some PCAS in my 10 when it flies in 1st quarter. Ryan TCAD is out (too expensive); Garmin 330 is out (have G327 and mode S is becoming obsolete).


    Message 2


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    Time: 09:21:42 AM PST US
    Subject: Statistical Sample
    From: "John W. Cox" <johnwcox@pacificnw.com>
    It looks from the attached information (which Tim began) that the total fleet hours are now at 21,000. If you are willing to update the info or add your flying RV-10 to the mix, then send me the data and I will add it. John Cox #40 <<New Elapsed Time.xls>> 600


    Message 3


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    Time: 11:21:50 AM PST US
    Subject: Aeroduct vs. Scat Tubing
    From: "Robin Marks" <robin1@mrmoisture.com>
    I have been thinking a lot about the oil cooling temp issues for the -10. Some have chosen to upgraded the oil cooler. I have an interest in controlling the oil temps by improving the air flow to the box and them adding a gate in the oil cooler housing that will allow me to restrict the air flow to the oil cooler in cold weather. (photo attached) I am considering swapping out the standard Scat Tubing for Silicone lined high temp Aeroduct hose. I have purchased this hose for my OH Console to replace the hearting scat tubes. It's nice stuff! My thinking is that this duct is much smoother and significantly less corrugated that scat tubing which SHOULD improve airflow to the oil cooler. The down side is that this ducting is only sold in 12 foot lengths at $150 / 12 feet. I probably need 2 feet. My other concept is to take two 3" tubes from the baffling (one on each side of the engine, I prefer this symmetry) and have both of these 3" tubes feed the oil cooler box. I don't know if I will have room to run a 3" duct from the right side on the engine to the oil cooler mounted in the typical location. To further complicate things I will be using the James Cowl & Plenum. I would appreciate any observations on using the smooth Silicone lined Aeroduct hose vs. Scat Tube and or comments on two 3" tubes/duct vs. the one larger tube/duct. Thanks, Robin Thinking of an RV-8A...Mental illness runs in my family. http://www.hrpworld.com/index.cfm?form_prod_id=3171&action=product&fo rm_ cat_id=59,7


    Message 4


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    Time: 11:27:05 AM PST US
    From: linn Walters <pitts_pilot@bellsouth.net>
    Subject: Re: collision avoidance
    David McNeill wrote: > After two near misses in or above the CHD class D within the last three > months, I would like to hear from anyone who uses the Zaon MRX or XRX. > I currently have the MRX and it provides distance and relative altitude > separation. Bearing it lacks. The XRX is supposed to provide all. On > both misses, I believe the MRX got my attention (although I don't > specifically recall) and I spotted traffic between 11:45 and 12:15 at > 1/4 mile and eithor <100 above and >100<200 below me. In one instance I > jammed the stick forward and lifted the tool box in the rear from the > floor. On both occasions I was monitoring CHD tower and no advisories > were issued. Playing Devils Advocate here ...... you were outside of their controlled airspace. > From what I could tell both of the other aircraft were > missed approachs or departures from CHD. Which means that maybe they were talking to center and not under tower control either?? Just a thought. You did what you should have done ..... see and avoid. I shudder to think of all the 'new' panels that require pilots to pull their attention from outside ...... to inside ...... and thereby missing an opportunity to see and avoid. I, too, have had some way too close calls ...... even though almost all my attention is outside the cockpit. Linn do not archive > When traveling through or > above CHD class D, I advise "don't expect anything from CHD tower" and > reduce to maneuvering speed. Incidentially I am currently flying the > Glastar but will put some PCAS in my 10 when it flies in 1st quarter. > > Ryan TCAD is out (too expensive); Garmin 330 is out (have G327 and > mode S is becoming obsolete). > >


    Message 5


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    Time: 11:54:01 AM PST US
    Subject: Re: collision avoidance
    From: "AirMike" <Mikeabel@Pacbell.net>
    I have the XRX that I used in my 182 till I sold it last year to build the new RV10. So far I am impressed with the unit and probably more important - the company. The unit is not an excuse for heads down VFR flying. View it as a tool in your tool box of avionics I find that the delay is significant on the unit, but being aware of that gives you a lot of what you need to know anyway. The Xaon people are very nice. My unit is going back to them this week for a FREE software/firmware upgrade so that it will link to my GPS496 unit and display on the display of the GPS496. Can you get a better deal than that for TCAS for less than $2K. Jason (the president of Xaon) is aways at OSH and is very approachable. Last year he told me that he would trade my XRX in at full value when they come out with their hard wired installation. He might even do the same on an MRX to XRX upgrade. -------- OSH '08 or Bust Q/B Kit - Doors/windows/fiberglass stuff Read this topic online here: http://forums.matronics.com/viewtopic.php?p=152541#152541


    Message 6


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    Time: 12:21:44 PM PST US
    Subject: Aeroduct vs. Scat Tubing
    From: "John W. Cox" <johnwcox@pacificnw.com>
    Robin, that's a most interesting landing gear leg and brake assembly (shown). You will find many advantages to the course you are pursuing. LoPresti would be please with your acknowledgement on air flow control. Let me know how much you have left, I would be interested, Too. I am looking at an improved flow path over the stock configuration. John Cox ________________________________ From: owner-rv10-list-server@matronics.com [mailto:owner-rv10-list-server@matronics.com] On Behalf Of Robin Marks Sent: Sunday, December 16, 2007 11:14 AM Subject: RV10-List: Aeroduct vs. Scat Tubing I have been thinking a lot about the oil cooling temp issues for the -10. Some have chosen to upgraded the oil cooler. I have an interest in controlling the oil temps by improving the air flow to the box and them adding a gate in the oil cooler housing that will allow me to restrict the air flow to the oil cooler in cold weather. (photo attached) I am considering swapping out the standard Scat Tubing for Silicone lined high temp Aeroduct hose. I have purchased this hose for my OH Console to replace the hearting scat tubes. It's nice stuff! My thinking is that this duct is much smoother and significantly less corrugated that scat tubing which SHOULD improve airflow to the oil cooler. The down side is that this ducting is only sold in 12 foot lengths at $150 / 12 feet. I probably need 2 feet. My other concept is to take two 3" tubes from the baffling (one on each side of the engine, I prefer this symmetry) and have both of these 3" tubes feed the oil cooler box. I don't know if I will have room to run a 3" duct from the right side on the engine to the oil cooler mounted in the typical location. To further complicate things I will be using the James Cowl & Plenum. I would appreciate any observations on using the smooth Silicone lined Aeroduct hose vs. Scat Tube and or comments on two 3" tubes/duct vs. the one larger tube/duct. Thanks, Robin Thinking of an RV-8A...Mental illness runs in my family. http://www.hrpworld.com/index.cfm?form_prod_id=3171&action=product&fo rm_ cat_id=59,7


    Message 7


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    Time: 12:24:37 PM PST US
    From: "David McNeill" <dlm46007@cox.net>
    Subject: collision avoidance
    After some discussion I am of the opinion that my problem is with CHD tower. One time I was in their class D and the other I was above their class D. The other aircraft were near the top of their class D after departure from CHD or a practice approach to CHD. There is another problem there also where I had a different class D to the East going up another 1000 feet and class B to the West that was at of below the HD class D upwards to 10000. Essentially FAA has created a VFR funnel for North to South traffic there. Since there was little or no COM traffic on CHD tower frequency, one would think that they could at least provide advisories to the aircraft leaving their airport. They have a radar slave unit there. _____ From: owner-rv10-list-server@matronics.com [mailto:owner-rv10-list-server@matronics.com] On Behalf Of linn Walters Sent: Sunday, December 16, 2007 12:16 PM Subject: Re: RV10-List: collision avoidance David McNeill wrote: After two near misses in or above the CHD class D within the last three months, I would like to hear from anyone who uses the Zaon MRX or XRX. I currently have the MRX and it provides distance and relative altitude separation. Bearing it lacks. The XRX is supposed to provide all. On both misses, I believe the MRX got my attention (although I don't specifically recall) and I spotted traffic between 11:45 and 12:15 at 1/4 mile and eithor <100 above and >100<200 below me. In one instance I jammed the stick forward and lifted the tool box in the rear from the floor. On both occasions I was monitoring CHD tower and no advisories were issued. Playing Devils Advocate here ...... you were outside of their controlled airspace. >From what I could tell both of the other aircraft were missed approachs or departures from CHD. Which means that maybe they were talking to center and not under tower control either?? Just a thought. You did what you should have done ..... see and avoid. I shudder to think of all the 'new' panels that require pilots to pull their attention from outside ...... to inside ...... and thereby missing an opportunity to see and avoid. I, too, have had some way too close calls ...... even though almost all my attention is outside the cockpit. Linn do not archive When traveling through or above CHD class D, I advise "don't expect anything from CHD tower" and reduce to maneuvering speed. Incidentially I am currently flying the Glastar but will put some PCAS in my 10 when it flies in 1st quarter. Ryan TCAD is out (too expensive); Garmin 330 is out (have G327 and mode S is becoming obsolete).


    Message 8


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    Time: 12:41:13 PM PST US
    From: "Kelly McMullen" <apilot2@gmail.com>
    Subject: Re: collision avoidance
    I've experienced similar episodes most everywhere I've flown, including FFZ and IWA airspace. Other than listening to their traffic and keeping head on a swivel, there isn't a lot you can do. IMHO, an in-cockpit device is useless unless you have a second pilot to watch it. Especially in a high traffic area. Right now you have 1000ft between the top of D and bottom of B airspace. If CHD has its way, that will get reduced to 500 ft before too long. With the PHX Class B redesign any in cockpit view has to be on map/gps for staying out of the B airspace, not looking at some fishfinder. On Dec 16, 2007 12:15 PM, linn Walters <pitts_pilot@bellsouth.net> wrote: > > David McNeill wrote: > > > After two near misses in or above the CHD class D within the last three > months, I would like to hear from anyone who uses the Zaon MRX or XRX. > I currently have the MRX and it provides distance and relative altitude > separation. Bearing it lacks. The XRX is supposed to provide all. On > both misses, I believe the MRX got my attention (although I don't > specifically recall) and I spotted traffic between 11:45 and 12:15 at > 1/4 mile and eithor <100 above and >100<200 below me. In one instance I > jammed the stick forward and lifted the tool box in the rear from the > floor. On both occasions I was monitoring CHD tower and no advisories > were issued. Playing Devils Advocate here ...... you were outside of their > controlled airspace. > > > >From what I could tell both of the other aircraft were > missed approachs or departures from CHD. Which means that maybe they were > talking to center and not under tower control either?? Just a thought. You > did what you should have done ..... see and avoid. I shudder to think of > all the 'new' panels that require pilots to pull their attention from > outside ...... to inside ...... and thereby missing an opportunity to see > and avoid. I, too, have had some way too close calls ...... even though > almost all my attention is outside the cockpit. > Linn > do not archive > > > When traveling through or > above CHD class D, I advise "don't expect anything from CHD tower" and > reduce to maneuvering speed. Incidentially I am currently flying the > Glastar but will put some PCAS in my 10 when it flies in 1st quarter. > > Ryan TCAD is out (too expensive); Garmin 330 is out (have G327 and mode S > is becoming obsolete). > >


    Message 9


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    Time: 02:02:53 PM PST US
    Subject: Re: collision avoidance
    From: darnpilot@aol.com
    I plan to use my G496 as a display for the XRX.? It feed its data to the 496 as a pseudo TIS signal.? Pretty neat.? I will use the XRX as a receiver only and mount it out of the way and out of sight.? I am going to wait until SNF to see if something better is available, if not, this is what I am going to do by May '08.? Has any one else done anything similar? Jeff -----Original Message----- From: Kelly McMullen <apilot2@gmail.com> Sent: Sun, 16 Dec 2007 3:28 pm Subject: Re: RV10-List: collision avoidance I've experienced similar episodes most everywhere I've flown, including FFZ and IWA airspace. Other than listening to their traffic and keeping head on a swivel, there isn't a lot you can do. IMHO, an in-cockpit device is useless unless you have a second pilot to watch it. Especially in a high traffic area. Right now you have 1000ft between the top of D and bottom of B airspace. If CHD has its way, that will get reduced to 500 ft before too long. With the PHX Class B redesign any in cockpit view has to be on map/gps for staying out of the B airspace, not looking at some fishfinder. On Dec 16, 2007 12:15 PM, linn Walters <pitts_pilot@bellsouth.net> wrote: > > David McNeill wrote: > > > After two near misses in or above the CHD class D within the last three > months, I would like to hear from anyone who uses the Zaon MRX or XRX. > I currently have the MRX and it provides distance and relative altitude > separation. Bearing it lacks. The XRX is supposed to provide all. On > both misses, I believe the MRX got my attention (although I don't > specifically recall) and I spotted traffic between 11:45 and 12:15 at > 1/4 mile and eithor <100 above and >100<200 below me. In one instance I > jammed the stick forward and lifted the tool box in the rear from the > floor. On both occasions I was monitoring CHD tower and no advisories > were issued. Playing Devils Advocate here ...... you were outside of their > controlled airspace. > > > >From what I could tell both of the other aircraft were > missed approachs or departures from CHD. Which means that maybe they were > talking to center and not under tower control either?? Just a thought. You > did what you should have done ..... see and avoid. I shudder to think of > all the 'new' panels that require pilots to pull their attention from > outside ...... to inside ...... and thereby missing an opportunity to see > and avoid. I, too, have had some way too close calls ...... even though > almost all my attention is outside the cockpit. > Linn > do not archive > > > When traveling through or > above CHD class D, I advise "don't expect anything from CHD tower" and > reduce to maneuvering speed. Incidentially I am currently flying the > Glastar but will put some PCAS in my 10 when it flies in 1st quarter. > > Ryan TCAD is out (too expensive); Garmin 330 is out (have G327 and mode S > is becoming obsolete). > > ________________________________________________________________________


    Message 10


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    Time: 02:22:32 PM PST US
    Subject: The Greenies are Coming
    From: "John W. Cox" <johnwcox@pacificnw.com>
    Nothing fall through the cracks. We let it happen through our own apathy or failure to clearly communicate our desires. It is a two way street. One of the authors of our latest fiasco was even a major radio talk show host and aviator. Oh the blasphemy. Oregon is now acknowledging that in an effort to please our Left leaning Governor, Senators and Representatives we would try to keep Oregon as the farthest left of logical states on the Western Seaboard (and that's no easy task with California so progressive). Everyone is now willing to admit the language was poorly written, incompetently researched and hastily passed. The lessons for all pilots (Everywhere) is to keep abreast of legislative trends. This same one is coming to a state near you, sooner that you're ready for it. Montana took a pre-emptive effort to protect the supply of Non Ethanol AVGAS throughout their distribution system. Oregon is trying to correct the widespread damage by leaving a provision for a new distribution and new sale of 91 octane Non Adulterated MOGAS for use in aircraft using an EAA or Peterson sponsored STC. The difficulty is that MOGAS does not stay as a "fresh consumable" as long as AVGAS. It lacks stabilizers. The supply of this product is not likely to gain market viability. The new loophole would permit FBO's to buy another fuel tank, pay another licensing fee, track another fuel source for sale and then try to find a distributor to bring very small boutique quantities of this new 91 Octane MOGAS to airports around our state on a frequent basis. Try to imagine the Supply and Demand model for very small quantity distribution (less than 5,000 gals) to your favorite airport. On a second front, they are redefining the descriptor for AVGAS to protect its cleanliness and not further disrupt our state based <<Bio RFS Rule v17 DRAFT.doc>> aircraft and aviation industries. We are still trying to jumpstart the Ethanol Industry before Iowa, Nebraska and the Great Heartland takes away all our business with our middle eastern brethren. Attached you may read the latest developments to try and stem the damage that has now been done. Before making cross country flights, research the grade and availability of your favorite fuel. Not just its price. Stay aware of your local legislative issues. John Cox #40600 Legislative Affairs for the Oregon Pilots Association


    Message 11


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    Time: 02:25:01 PM PST US
    From: "Kelly McMullen" <apilot2@gmail.com>
    Subject: Re: collision avoidance
    Not really. You can go west below 4000 ft and stay out of CHD airspace, or you can go south through Willie airspace at 3500. Remember that CHD and Willie both operate on two tower freqs, which may or may not be operated by the same person, so they can be busy on one side while you hear little or nothing on the other. While advisories are nice, in Class D airspace I certainly don't expect them for anything other than sequencing to the runway or conflicts between arriving and departing traffic. As was mentioned, almost always a missed approach will be back on approach freq and tower won't be paying any attention to them. Not saying you are wrong, but a VFR tower doesn't supply more than runway separation and anything extra is gravy. On Dec 16, 2007 1:20 PM, David McNeill <dlm46007@cox.net> wrote: > > > After some discussion I am of the opinion that my problem is with CHD tower. > One time I was in their class D and the other I was above their class D. The > other aircraft were near the top of their class D after departure from CHD > or a practice approach to CHD. There is another problem there also where I > had a different class D to the East going up another 1000 feet and class B > to the West that was at of below the HD class D upwards to 10000. > Essentially FAA has created a VFR funnel for North to South traffic there. > Since there was little or no COM traffic on CHD tower frequency, one would > think that they could at least provide advisories to the aircraft leaving > their airport. They have a radar slave unit there. > > ________________________________ > From: owner-rv10-list-server@matronics.com > [mailto:owner-rv10-list-server@matronics.com] On Behalf Of linn Walters > Sent: Sunday, December 16, 2007 12:16 PM > To: rv10-list@matronics.com > Subject: Re: RV10-List: collision avoidance > > > David McNeill wrote: > > > After two near misses in or above the CHD class D within the last three > months, I would like to hear from anyone who uses the Zaon MRX or XRX. > I currently have the MRX and it provides distance and relative altitude > separation. Bearing it lacks. The XRX is supposed to provide all. On > both misses, I believe the MRX got my attention (although I don't > specifically recall) and I spotted traffic between 11:45 and 12:15 at > 1/4 mile and eithor <100 above and >100<200 below me. In one instance I > jammed the stick forward and lifted the tool box in the rear from the > floor. On both occasions I was monitoring CHD tower and no advisories > were issued.Playing Devils Advocate here ...... you were outside of their > controlled airspace. > > > >From what I could tell both of the other aircraft were > missed approachs or departures from CHD.Which means that maybe they were > talking to center and not under tower control either?? Just a thought. You > did what you should have done ..... see and avoid. I shudder to think of > all the 'new' panels that require pilots to pull their attention from > outside ...... to inside ...... and thereby missing an opportunity to see > and avoid. I, too, have had some way too close calls ...... even though > almost all my attention is outside the cockpit. > Linn > do not archive > > > When traveling through or > above CHD class D, I advise "don't expect anything from CHD tower" and > reduce to maneuvering speed. Incidentially I am currently flying the > Glastar but will put some PCAS in my 10 when it flies in 1st quarter. > > Ryan TCAD is out (too expensive); Garmin 330 is out (have G327 and mode S is > becoming obsolete). > > > href="http://www.matronics.com/contribution">http://www.matronics.com/chref="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List > href="http://forums.matronics.com">http://forums.matronics.com > >


    Message 12


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    Time: 02:50:23 PM PST US
    Subject: collision avoidance
    From: N212PJ <n212pj@gmail.com>
    I once was able to visit the guys handling the BED tower (Hanscom field), a very busy GA airport near Logan, outside of Boston. This was where I learned how to fly and before the new tower was built. My instructor insisted that all his students spend an hour in the tower during busy times. What a lesson! They had what looked like a very crude radar feed from Logan, but mostly depended on the accuracy of radio reports and their eyes to see what was happening, helped by some binoculars. They were plenty busy tring to keep the incoming jets, Mooney's, Bonanza's, twins of all types, the occassional commuter turbo prop, all from playing havoc with each other and all the while avoiding the many student driven Katana's putting around at 80 knots. It didn't happen the day I got to visit the tower, but it wasn't unusual for them to "forget" an extended downwind plane when things got hairy. I had two close calls coming into the pattern at BED, especially one where an unfamiliar (to the area) pilot came across the field almost at pattern altitude, scaring the tower personnel so much that they totally forgot about me as they tried to get that a&& under control. Anyway, I agree with the other posts. You cannot expect some of the tower personnel to be doing much more than keeping folks separated, especially at busy arrival or training times. PIC responsibility is paramont at these times. John J 40328 -----Original Message----- From: owner-rv10-list-server@matronics.com [mailto:owner-rv10-list-server@matronics.com] On Behalf Of Kelly McMullen Sent: Sunday, December 16, 2007 2:24 PM Subject: Re: RV10-List: collision avoidance Not really. You can go west below 4000 ft and stay out of CHD airspace, or you can go south through Willie airspace at 3500. Remember that CHD and Willie both operate on two tower freqs, which may or may not be operated by the same person, so they can be busy on one side while you hear little or nothing on the other. While advisories are nice, in Class D airspace I certainly don't expect them for anything other than sequencing to the runway or conflicts between arriving and departing traffic. As was mentioned, almost always a missed approach will be back on approach freq and tower won't be paying any attention to them. Not saying you are wrong, but a VFR tower doesn't supply more than runway separation and anything extra is gravy. On Dec 16, 2007 1:20 PM, David McNeill <dlm46007@cox.net> wrote: > > > After some discussion I am of the opinion that my problem is with CHD tower. > One time I was in their class D and the other I was above their class > D. The other aircraft were near the top of their class D after > departure from CHD or a practice approach to CHD. There is another > problem there also where I had a different class D to the East going > up another 1000 feet and class B to the West that was at of below the HD class D upwards to 10000. > Essentially FAA has created a VFR funnel for North to South traffic there. > Since there was little or no COM traffic on CHD tower frequency, one > would think that they could at least provide advisories to the > aircraft leaving their airport. They have a radar slave unit there. > > ________________________________ > From: owner-rv10-list-server@matronics.com > [mailto:owner-rv10-list-server@matronics.com] On Behalf Of linn > Walters > Sent: Sunday, December 16, 2007 12:16 PM > To: rv10-list@matronics.com > Subject: Re: RV10-List: collision avoidance > > > David McNeill wrote: > > > After two near misses in or above the CHD class D within the last > three months, I would like to hear from anyone who uses the Zaon MRX or XRX. > I currently have the MRX and it provides distance and relative > altitude separation. Bearing it lacks. The XRX is supposed to provide > all. On both misses, I believe the MRX got my attention (although I > don't specifically recall) and I spotted traffic between 11:45 and > 12:15 at > 1/4 mile and eithor <100 above and >100<200 below me. In one instance > I jammed the stick forward and lifted the tool box in the rear from > the floor. On both occasions I was monitoring CHD tower and no > advisories were issued.Playing Devils Advocate here ...... you were > outside of their controlled airspace. > > > >From what I could tell both of the other aircraft were > missed approachs or departures from CHD.Which means that maybe they > were talking to center and not under tower control either?? Just a > thought. You did what you should have done ..... see and avoid. I > shudder to think of all the 'new' panels that require pilots to pull > their attention from outside ...... to inside ...... and thereby > missing an opportunity to see and avoid. I, too, have had some way > too close calls ...... even though almost all my attention is outside the cockpit. > Linn > do not archive > > > When traveling through or > above CHD class D, I advise "don't expect anything from CHD tower" and > reduce to maneuvering speed. Incidentially I am currently flying the > Glastar but will put some PCAS in my 10 when it flies in 1st quarter. > > Ryan TCAD is out (too expensive); Garmin 330 is out (have G327 and > mode S is becoming obsolete). > > > href="http://www.matronics.com/contribution">http://www.matronics.com/ > chref="http://www.matronics.com/Navigator?RV10-List">http://www.matron > ics.com/Navigator?RV10-List > href="http://forums.matronics.com">http://forums.matronics.com > >


    Message 13


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    Time: 04:15:43 PM PST US
    From: Tim Olson <Tim@MyRV10.com>
    Subject: Re: Aeroduct vs. Scat Tubing
    You should be able to do some easy area of a circle type calculations and determine if your dual-fed SCAT tubes can provide the same amount of air all other things being equal. As diameter goes up, the area increases substantially so it might be hard to get 2 SCAT tubes to have the same flow as one, without going to some pretty good sized dual tubes. But, as long as you get the air there I should work I'd think. Tim Olson - RV-10 N104CD - Flying do not archive Robin Marks wrote: > I have been thinking a lot about the oil cooling temp issues for the > -10. Some have chosen to upgraded the oil cooler. I have an interest in > controlling the oil temps by improving the air flow to the box and them > adding a gate in the oil cooler housing that will allow me to restrict > the air flow to the oil cooler in cold weather. (photo attached) > > I am considering swapping out the standard Scat Tubing for Silicone > lined high temp Aeroduct hose. I have purchased this hose for my OH > Console to replace the hearting scat tubes. Its nice stuff! My thinking > is that this duct is much smoother and significantly less corrugated > that scat tubing which SHOULD improve airflow to the oil cooler. The > down side is that this ducting is only sold in 12 foot lengths at $150 / > 12 feet. I probably need 2 feet. > > My other concept is to take two 3 tubes from the baffling (one on each > side of the engine, I prefer this symmetry) and have both of these 3 > tubes feed the oil cooler box. I dont know if I will have room to run a > 3 duct from the right side on the engine to the oil cooler mounted in > the typical location. > > To further complicate things I will be using the James Cowl & Plenum. > > I would appreciate any observations on using the smooth Silicone lined > Aeroduct hose vs. Scat Tube and or comments on two 3 tubes/duct vs. the > one larger tube/duct. > > > > Thanks, > > Robin > > Thinking of an RV-8AMental illness runs in my family. > > > > http://www.hrpworld.com/index.cfm?form_prod_id=3171&action=product&form_cat_id=59,7 > <http://www.hrpworld.com/index.cfm?form_prod_id=3171&action=product&form_cat_id=59,7> > > > http://www.hrpworld.com/client_images/ecommerce/client_39/products/3171_hdr_2_l.jpg > > http://www.hrpworld.com/client_images/ecommerce/client_39/products/3171_1.jpg* *http://www.hrpworld.com/client_images/ecommerce/client_39/products/3171_2.jpg > > > > > ------------------------------------------------------------------------ >


    Message 14


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    Time: 04:50:27 PM PST US
    From: JSMcGrew@aol.com
    Subject: Re: Aeroduct vs. Scat Tubing
    Kind of a side note as we're talking about cooling and air flow. I took my cowling off last week and noticed that the aluminum shielding I had applied to the bottom cowling had been peeled up just underneath the oil cooler. Now I can't say for sure, but this seems to indicate that the air is flowing forwa rd in this location; probably not the most efficient flow pattern. Possibly additional louvers in this location may help. I have the stock oil cooler with a stock installation. You might notice I'v e added a few extra louvers on the bottom cowl. I've also added a "dryer vent " exhaust on the exit side of the oil cooler (see photo). My hope is this would help the air exiting the oil cooler to more smoothly mix with the exi ting air. I have no hard data to back up whether these were actual improvements in air flow; however I'll say that my oil temp and CHTs have become lower and more manageable with the changes. -Jim 40134 - Flying In a message dated 12/16/2007 2:27:23 P.M. Eastern Standard Time, robin1@mrmoisture.com writes: I have been thinking a lot about the oil cooling temp issues for the -10. Some have chosen to upgraded the oil cooler. I have an interest in control ling the oil temps by improving the air flow to the box and them adding a gate i n the oil cooler housing that will allow me to restrict the air flow to the oil cooler in cold weather. (photo attached) I am considering swapping out the standard Scat Tubing for Silicone lined high temp Aeroduct hose. I have purchased this hose for my OH Console to replace the hearting scat tubes. It=99s nice stuff! My thinking is th at this duct is much smoother and significantly less corrugated that scat tubing which SHOU LD improve airflow to the oil cooler. The down side is that this ducting is only sold in 12 foot lengths at $150 / 12 feet. I probably need 2 feet. My other concept is to take two 3=9D tubes from the baffling (one on each side of the engine, I prefer this symmetry) and have both of these 3=9D tu bes feed the oil cooler box. I don=99t know if I will have room to run a 3 =9D duct from the right side on the engine to the oil cooler mounted in the typical location. To further complicate things I will be using the James Cowl & Plenum. I would appreciate any observations on using the smooth Silicone lined Aeroduct hose vs. Scat Tube and or comments on two 3=9D tubes/duct vs . the one larger tube/duct. Thanks, Robin Thinking of an RV-8AMental illness runs in my family. Jim "Scooter" McGrew _http://www.mit.edu/~jsmcgrew_ (http://www.mit.edu/~jsmcgrew) **************************************See AOL's top rated recipes (http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)


    Message 15


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    Time: 05:07:53 PM PST US
    From: "Chris Hukill" <cjhukill@cox.net>
    Subject: wing tip
    I'm about to fit the wingtips to the wing, and I need to determine the neutral aileron position to align and trim the length of the trailing edge of the tip with the aileron. Does the neutral position that is set with the rigging of the wing bellcrank give a true neutral, or does the aileron need to be set to trail with the flap for a accurate neutral position? On the RV8, I had to wait until the wing was mounted to the fuselage, install the flaps and rig to full up, then adjust the aileron trail to the flap trail to get a true neutral. Am I better off waiting until this scenario on the 10 as well? Chris Hukill (what, more fiberglass!)


    Message 16


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    Time: 05:22:36 PM PST US
    From: "Ralph E. Capen" <recapen@earthlink.net>
    Subject: Re: wing tip
    On my 6A, I had an airfoil template that I used for the ailerons, flaps and tip - even prior to inatallation of the wing to the fuse - and it hasn't needed to be changed since I installed the wing. I was planning to do the same again...... ----- Original Message ----- From: Chris Hukill To: rv10-list@matronics.com Sent: Sunday, December 16, 2007 8:06 PM Subject: RV10-List: wing tip I'm about to fit the wingtips to the wing, and I need to determine the neutral aileron position to align and trim the length of the trailing edge of the tip with the aileron. Does the neutral position that is set with the rigging of the wing bellcrank give a true neutral, or does the aileron need to be set to trail with the flap for a accurate neutral position? On the RV8, I had to wait until the wing was mounted to the fuselage, install the flaps and rig to full up, then adjust the aileron trail to the flap trail to get a true neutral. Am I better off waiting until this scenario on the 10 as well? Chris Hukill (what, more fiberglass!)


    Message 17


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    Time: 05:26:07 PM PST US
    Subject: Aeroduct vs. Scat Tubing
    From: "John W. Cox" <johnwcox@pacificnw.com>
    High pressure and cooler air from the upper plenum escapes through the oil heat exchanger and collides with the downflow past the cooling fins on the port side. It is a great example of the burble generated from the collision of air masses. It may also indicate an adhesion problem between the film and the lower cowl finish coating. John Cox 40600 - dreaming ________________________________ From: owner-rv10-list-server@matronics.com [mailto:owner-rv10-list-server@matronics.com] On Behalf Of JSMcGrew@aol.com Sent: Sunday, December 16, 2007 4:49 PM Subject: Re: RV10-List: Aeroduct vs. Scat Tubing Kind of a side note as we're talking about cooling and air flow. I took my cowling off last week and noticed that the aluminum shielding I had applied to the bottom cowling had been peeled up just underneath the oil cooler. Now I can't say for sure, but this seems to indicate that the air is flowing forward in this location; probably not the most efficient flow pattern. Possibly additional louvers in this location may help. I have the stock oil cooler with a stock installation. You might notice I've added a few extra louvers on the bottom cowl. I've also added a "dryer vent" exhaust on the exit side of the oil cooler (see photo). My hope is this would help the air exiting the oil cooler to more smoothly mix with the exiting air. I have no hard data to back up whether these were actual improvements in air flow; however I'll say that my oil temp and CHTs have become lower and more manageable with the changes. -Jim 40134 - Flying In a message dated 12/16/2007 2:27:23 P.M. Eastern Standard Time, robin1@mrmoisture.com writes: I ha ve been thinking a lot about the oil cooling temp issues for the -10. Some have chosen to upgraded the oil cooler. I have an interest in controlling the oil temps by improving the air flow to the box and them adding a gate in the oil cooler housing that will allow me to restrict the air flow to the oil cooler in cold weather. (photo attached) I am considering swapping out the standard Scat Tubing for Silicone lined high temp Aeroduct hose. I have purchased this hose for my OH Console to replace the hearting scat tubes. It's nice stuff! My thinking is that this duct is much smoother and significantly less corrugated that scat tubing which SHOULD improve airflow to the oil cooler. The down side is that this ducting is only sold in 12 foot lengths at $150 / 12 feet. I probably need 2 feet. My other concept is to take two 3" tubes from the baffling (one on each side of the engine, I prefer this symmetry) and have both of these 3" tubes feed the oil cooler box. I don't know if I will have room to run a 3" duct from the right side on the engine to the oil cooler mounted in the typical location. To further complicate things I will be using the James Cowl & Plenum. I would appreciate any observations on using the smooth Silicone lined Aeroduct hose vs. Scat Tube and or comments on two 3" tubes/duct vs. the one larger tube/duct. Thanks, Robin Thinking of an RV-8A...Mental illness runs in my family. Jim "Scooter" McGrew http://www.mit.edu/~jsmcgrew ________________________________ See AOL's top rated recipes <http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004> and easy ways to stay in shape <http://body.aol.com/fitness/winter-exercise?NCID=aoltop00030000000003> for winter.


    Message 18


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    Time: 05:38:57 PM PST US
    From: "Bob-tcw" <rnewman@tcwtech.com>
    Subject: Re: wing tip
    Chris, Other's will have to chime in, especially those flying. When I did my wing tips I used the "neutral jig" which sets the aileron neutral position, checked and aligned the flaps to the ailerons and then set my wing tip trailing edges to the ailerons. I believe I had the "old version" of wing tips as they were about 3/4" longer than the aileron, but none the less, I had to cut the upper and lower wing tip surface at the trailing edge to pull the wing tip into alignment with the aileron. I used a long straight edge to align the wing tip to the aileron and used it as a clamping jig while the resin dried. I remeber cutting about 3" forward from the trailing edge to give the upper and lower tip skin some compliance so I could easily align it with the aileron. When I was done it came out swell. Here's a picture when it was all done. -Bob Newman TCW Technologies www.tcwtech.com


    Message 19


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    Time: 06:08:16 PM PST US
    Subject: Re: oil canning.
    From: "johngoodman" <johngoodman@earthlink.net>
    JOhn, You got my attention. I'll be closing up my QB wings in a week or two and I've noticed a little "slop" in the open ribs, especially in the middle, when I tried to precut the pitot mount hole. I'm guessing about two bays outside the last inspection port, right? John -------- #40572 QB Wings, QB Fuse arrived N711JG reserved Read this topic online here: http://forums.matronics.com/viewtopic.php?p=152605#152605


    Message 20


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    Time: 06:10:20 PM PST US
    From: Tim Olson <Tim@MyRV10.com>
    Subject: Re: wing tip
    I would get it all in the wing rack and get the flaps installed so they're all the way retracted, and then align the ailerons to them and then mount the wingtip so it aligns with the flaps and ailerons. That way when you're in cruise it's all lined up nicely. If you just did it rough now, chances are it won't be aligned well later and you may end up with the famous "droopy aileron" syndrome have to deal with that later. Tim Olson - RV-10 N104CD - Flying Chris Hukill wrote: > I'm about to fit the wingtips to the wing, and I need to determine the > neutral aileron position to align and trim the length of the trailing > edge of the tip with the aileron. Does the neutral position that is set > with the rigging of the wing bellcrank give a true neutral, or does the > aileron need to be set to trail with the flap for a accurate neutral > position? On the RV8, I had to wait until the wing was mounted to the > fuselage, install the flaps and rig to full up, then adjust the aileron > trail to the flap trail to get a true neutral. Am I better off waiting > until this scenario on the 10 as well? > > Chris Hukill > (what, more fiberglass!) > >


    Message 21


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    Time: 06:10:30 PM PST US
    From: "Bob-tcw" <rnewman@tcwtech.com>
    Subject: wingtip
    Here's one more wingtip picture from the alignment process. -Bob Newman


    Message 22


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    Time: 06:10:38 PM PST US
    From: "Bob-tcw" <rnewman@tcwtech.com>
    Subject: wingtip
    Chris, I found one more picture. This was with the straight edge clamped to the trailing edge of the aileron and wingtip as the resin hardened. -Bob Newman


    Message 23


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    Time: 06:39:17 PM PST US
    From: John Gonzalez <indigoonlatigo@msn.com>
    Subject: oil canning.
    Thanks Ron, I had completed last night the rivetting of the bottom wing skin completing step 11, section 20-5. As I stated, I noted the large amount of oil cannin g in the squares aft of the main spar and I stopped. This morning I removed the rivets that are forward of the J stiffner, all the way to the spar and the skin released with no seen tweeks. What I am having trouble understanding is that eventhough the rib flanges h ave been crimped, the ribs seem to be loaded with pressure and they need to be pulled into alignment with the skin holes. These pr loads seem to be wh at is causing the oil canning. Studing the ribs without the skin indicates that the pulling force each rib exerts is in the opposite direction from the direction the flange is facin g. Where the plans have us start is the centerpoint where both rib's pullin g forces are coming together, directed toward one another(which means loose skin). Perhaps if I would have proceeded the skin may have gotten tighter toward the completion of step 12, as you suggested, but I was reluctant to proceed. Step 11 really doesn't spell out the order too well in how to rivet the ski n to the underlying structure. It says nothing about how to proceed forward of the J stiffner. I presume the entire J stiffner needs to be rivetted pr ior to moving forward toward the main spar, no clecos forward of the J stif fner, this allows us to get our hand up under the skin to access the J stif fner. After it is rivetted, I presume we need to cleco the remaining struct ure closed and access the interior from the access holes. Sorry for the long post just don't want to have to drill these rivets out a gain. I seems so strange building structures which have these preloads on them an d then asking another preloaded member to cancel the other out. I seem to n ever get over this and how we are using controlled collisions to build stru cture. Next plane will be fiberglass. Thanks for any suggestions other than quiting, JOhn G.


    Message 24


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    Time: 07:54:34 PM PST US
    From: "David McNeill" <dlm46007@cox.net>
    Subject: Re: oil canning.
    When you are joining adjacent skins you should trim the edge so that there is about a .020 gap when clecoed in place; this will allow the riveted skin to expand to fill the gap. If the skins fit tightly before riveting there will be excess metal to oil can. You can also see the ridge where the skins join. Addtionally you can cleco the skin every other hole and lock the skin in place before making a second pass and finishing the job. -----Original Message----- From: owner-rv10-list-server@matronics.com [mailto:owner-rv10-list-server@matronics.com] On Behalf Of johngoodman Sent: Sunday, December 16, 2007 6:48 PM Subject: RV10-List: Re: oil canning. --> <johngoodman@earthlink.net> JOhn, You got my attention. I'll be closing up my QB wings in a week or two and I've noticed a little "slop" in the open ribs, especially in the middle, when I tried to precut the pitot mount hole. I'm guessing about two bays outside the last inspection port, right? John -------- #40572 QB Wings, QB Fuse arrived N711JG reserved Read this topic online here: http://forums.matronics.com/viewtopic.php?p=152605#152605


    Message 25


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    Time: 08:19:05 PM PST US
    From: Indran Chelvanayagam <dc71@netspace.net.au>
    Subject: Re: Aeroduct vs. Scat Tubing
    Assuming laminar flow, flow through a tube is proportional to the fourth power of the radius. Therefore to get the same flow through two smaller tubes, the radius of each small tube has to be approx 84% of the larger tube, without taking into account frictional losses. Hope this helps Indran On 17/12/2007, at 9:14 AM, Tim Olson wrote: > > You should be able to do some easy area of a circle type > calculations and determine if your dual-fed SCAT tubes > can provide the same amount of air all other things > being equal. As diameter goes up, the area increases > substantially so it might be hard to get 2 SCAT tubes > to have the same flow as one, without going to some > pretty good sized dual tubes. But, as long as you get > the air there I should work I'd think. > > Tim Olson - RV-10 N104CD - Flying > do not archive > > > Robin Marks wrote: >> I have been thinking a lot about the oil cooling temp issues for >> the -10. Some have chosen to upgraded the oil cooler. I have an >> interest in controlling the oil temps by improving the air flow to >> the box and them adding a gate in the oil cooler housing that will >> allow me to restrict the air flow to the oil cooler in cold >> weather. (photo attached) >> I am considering swapping out the standard Scat Tubing for >> Silicone lined high temp Aeroduct hose. I have purchased this hose >> for my OH Console to replace the hearting scat tubes. Its nice >> stuff! My thinking is that this duct is much smoother and >> significantly less corrugated that scat tubing which SHOULD >> improve airflow to the oil cooler. The down side is that this >> ducting is only sold in 12 foot lengths at $150 / 12 feet. I >> probably need 2 feet. >> My other concept is to take two 3 tubes from the baffling (one on >> each side of the engine, I prefer this symmetry) and have both of >> these 3 tubes feed the oil cooler box. I dont know if I will >> have room to run a 3 duct from the right side on the engine to >> the oil cooler mounted in the typical location. >> To further complicate things I will be using the James Cowl & Plenum. >> I would appreciate any observations on using the smooth Silicone >> lined Aeroduct hose vs. Scat Tube and or comments on two 3 tubes/ >> duct vs. the one larger tube/duct. >> Thanks, >> Robin >> Thinking of an RV-8AMental illness runs in my family. >> http://www.hrpworld.com/index.cfm? >> form_prod_id=3171&action=product&form_cat_id=59,7 <http:// >> www.hrpworld.com/index.cfm? >> form_prod_id=3171&action=product&form_cat_id=59,7> http:// >> www.hrpworld.com/client_images/ecommerce/client_39/products/ >> 3171_hdr_2_l.jpg >> http://www.hrpworld.com/client_images/ecommerce/client_39/products/ >> 3171_1.jpg* *http://www.hrpworld.com/client_images/ecommerce/ >> client_39/products/3171_2.jpg >> >> --------------------------------------------------------------------- >> --- > >




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