---------------------------------------------------------- RV-List Digest Archive --- Total Messages Posted Fri 10/14/05: 24 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:34 AM - Flow matching injectors (Stewart, Michael (ISS Atlanta)) 2. 09:11 AM - One antenna or two? (bob rundle) 3. 09:31 AM - Re: One antenna or two? (Ralph E. Capen) 4. 10:14 AM - Re: One antenna or two? (linn walters) 5. 10:29 AM - Re: One antenna or two? (James Ochs) 6. 10:31 AM - Re: One antenna or two? (Kelly McMullen) 7. 10:56 AM - Re: Resale Values (sportav8r@aol.com) 8. 11:05 AM - Re: Resale Values (linn walters) 9. 11:44 AM - free books all gone (Aircraft Technical Book Company) 10. 11:49 AM - Re: One antenna or two? (Ralph E. Capen) 11. 11:57 AM - Re: One antenna or two? (Glaeser, Dennis A) 12. 12:06 PM - to Matt Jurotich (Aircraft Technical Book Company) 13. 01:34 PM - Re: AeroElectric-List: One antenna or two? (Wayne Sweet) 14. 02:41 PM - Re: Resale Values (David Burton) 15. 03:55 PM - Finished my HS!! (Smitty) 16. 04:16 PM - Re: Resale Values (sportav8r@aol.com) 17. 04:52 PM - Re: One antenna or two? (LessDragProd@aol.com) 18. 05:32 PM - Re: Resale Values (Fiveonepw@aol.com) 19. 05:36 PM - Re: One antenna or two? (RV6 Flyer) 20. 05:44 PM - Re: Resale Values (linn walters) 21. 05:52 PM - Re: Resale Values. Do not archive (Fiveonepw@AOL.COM) 22. 05:56 PM - Parallel Fuel Line for IO-540 (that bypasses the engine driven fuel pump) (Tim Lewis) 23. 06:23 PM - Re: One antenna or two? (LessDragProd@aol.com) 24. 11:02 PM - Resale values-horsepower (DEAN PSIROPOULOS) ________________________________ Message 1 _____________________________________ Time: 06:34:52 AM PST US Subject: RV-List: Flow matching injectors From: "Stewart, Michael (ISS Atlanta)" --> RV-List message posted by: "Stewart, Michael (ISS Atlanta)" Finally got my 3rd iteration in and able to get all 6 cylinders to peak w/I .1gph. I can now lean all the way to engine shut down with out any miss or vibration. Happy Happy. Best Mike Do not archive Results and Methodology here: http://www.mstewart.net/super8/nozzles/index.htm ________________________________ Message 2 _____________________________________ Time: 09:11:51 AM PST US From: "bob rundle" Subject: RV-List: One antenna or two? INNOCENT GLOBAL 0.0000 1.0000 -4.4912 --> RV-List message posted by: "bob rundle" I have a dual comm set-up. Trying to decide whether to have 2 antennas or a splitter (and single antenna). Opinions? Bob R Dont just search. Find. Check out the new MSN Search! http://search.msn.click-url.com/go/onm00200636ave/direct/01/ ________________________________ Message 3 _____________________________________ Time: 09:31:35 AM PST US From: "Ralph E. Capen" Subject: Re: RV-List: One antenna or two? --> RV-List message posted by: "Ralph E. Capen" I'm considering the same thing and already purchased the splitter..... Here's what I'm looking forward to: One antenna - less parasitic drag Here's what I'm worried about: Single antenna - single point of failure...... Not being able to have both pilot and copilot transmitting on diff radios/diff freqs at the same time. Wiring it all up - good instructions - just time consuming....... My .02 Ralph Capen RV6A N822AR N06 90% / 90% -----Original Message----- From: bob rundle Subject: RV-List: One antenna or two? --> RV-List message posted by: "bob rundle" I have a dual comm set-up. Trying to decide whether to have 2 antennas or a splitter (and single antenna). Opinions? Bob R Dont just search. Find. Check out the new MSN Search! http://search.msn.click-url.com/go/onm00200636ave/direct/01/ ________________________________ Message 4 _____________________________________ Time: 10:14:54 AM PST US From: linn walters Subject: Re: RV-List: One antenna or two? --> RV-List message posted by: linn walters Ralph E. Capen wrote: >--> RV-List message posted by: "Ralph E. Capen" > >I'm considering the same thing and already purchased the splitter..... > >Here's what I'm looking forward to: > >One antenna - less parasitic drag > Good point >Here's what I'm worried about: > >Single antenna - single point of failure...... > Antennas rarely fail. The failure point is in the connection to the coax ....... some antennas use crimp on ring connectors, and there's always mis-assembled BNC connectors. >Not being able to have both pilot and copilot transmitting on diff radios/diff freqs at the same time. > This doesn't happen .... unless you REALLY want it to. Typically both pilot and pass mike keys are in parallel and key whichever transmitter is selected. >Wiring it all up - good instructions - just time consuming....... > and wiring separate mic, mike audio and headset controls would be a nightmare, much less the switch panel to accomplish the feat above!!! Using one antenna might cause shadowing when the airframe is between the antenna and the ground station. Here's your change! :-) Linn do not archive > >My .02 >Ralph Capen >RV6A N822AR N06 90% / 90% > >-----Original Message----- >From: bob rundle >To: aeroelectric-list@matronics.com, rv-list@matronics.com >Subject: RV-List: One antenna or two? > >--> RV-List message posted by: "bob rundle" > >I have a dual comm set-up. Trying to decide whether to have 2 antennas or a >splitter (and single antenna). > >Opinions? > >Bob R > >Dont just search. Find. Check out the new MSN Search! >http://search.msn.click-url.com/go/onm00200636ave/direct/01/ > > > > -- ________________________________ Message 5 _____________________________________ Time: 10:29:24 AM PST US From: James Ochs Subject: Re: RV-List: One antenna or two? --> RV-List message posted by: James Ochs I'm planning on putting a belly whip for com1 and then an archer wingtip antenna for com2. This gives you two antennas, but with the same drag as a single whip ;) From what I hear the wingtip ones will work pretty well in most conditions, so as the second comm it should suffice pretty well. James #40400 Ralph E. Capen wrote: >--> RV-List message posted by: "Ralph E. Capen" > >I'm considering the same thing and already purchased the splitter..... > >Here's what I'm looking forward to: > >One antenna - less parasitic drag > >Here's what I'm worried about: > >Single antenna - single point of failure...... >Not being able to have both pilot and copilot transmitting on diff radios/diff freqs at the same time. >Wiring it all up - good instructions - just time consuming....... > >My .02 >Ralph Capen >RV6A N822AR N06 90% / 90% > >-----Original Message----- >From: bob rundle >To: aeroelectric-list@matronics.com, rv-list@matronics.com >Subject: RV-List: One antenna or two? > >--> RV-List message posted by: "bob rundle" > >I have a dual comm set-up. Trying to decide whether to have 2 antennas or a >splitter (and single antenna). > >Opinions? > >Bob R > >Dont just search. Find. Check out the new MSN Search! >http://search.msn.click-url.com/go/onm00200636ave/direct/01/ > > > > ________________________________ Message 6 _____________________________________ Time: 10:31:45 AM PST US Subject: Re: RV-List: One antenna or two? From: "Kelly McMullen" --> RV-List message posted by: "Kelly McMullen" Whatever you do, be certain you are isolating the com receive of each radio from the transmitter of the other, via switch or other physical disconnect mechanism, or you will fry the receiver of one of them. linn walters said: > --> RV-List message posted by: linn walters > > Ralph E. Capen wrote: > >>--> RV-List message posted by: "Ralph E. Capen" >> >>I'm considering the same thing and already purchased the splitter..... >> >>Here's what I'm looking forward to: >> >>One antenna - less parasitic drag ________________________________ Message 7 _____________________________________ Time: 10:56:15 AM PST US From: sportav8r@aol.com Subject: Re: RV-List: Resale Values --> RV-List message posted by: sportav8r@aol.com Allow me to jump in here and say that as a 160 hp upgrade owner, I'd go back in a heartbeat if I had the engine apart for anything else. With a Sensenich prop limited to 2600 rpm, I rarely ever see the 160 hp anyway, and paying 20 cents extra for Hi-test mogas has really been a losing proposition. Now my local gas station has taken to carrying only regular grade, making for a long drive with a heavy transfer tank when it's time to refill the fuel farm. Plus, regular mogas is all you'll find at airports, so away from home I'm stuck buying 100LL anyway. Add in the fact tha 100LL sometimes sells for less than premium mogas (it used to be a dollar more, at least) and most of the incentinve just disappears. Nothing wrong with a 150 hp RV, even fixed pitch. My vote would be for a 180 C/S, though ;-) Won't they run on 80 octane? -Stormy -----Original Message----- From: Fiveonepw@aol.com Subject: Re: RV-List: Resale Values --> RV-List message posted by: Fiveonepw@aol.com In a message dated 10/13/2005 1:19:52 PM Central Standard Time, ronlee@pcisys.net writes: One suggestion. Do not install an engine with less than 180 HP. IMO, I would not even look at it so it has ZERO value to me. Applies to RV-6, -7 as well >>> As nice as a big motor might be, being able to run mogas in a low-comp engine might go a long way to twisting a prospects arm! Checked Airnav ga$ lately? 150 hp O-320s still kick PLENTY of butt! 8-) Mark - do not archive ! ________________________________ Message 8 _____________________________________ Time: 11:05:08 AM PST US From: linn walters Subject: Re: RV-List: Resale Values --> RV-List message posted by: linn walters sportav8r@aol.com wrote: >--> RV-List message posted by: sportav8r@aol.com > >Allow me to jump in here and say that as a 160 hp upgrade owner, I'd go back in a heartbeat if I had the engine apart for anything else. With a Sensenich prop limited to 2600 rpm, I rarely ever see the 160 hp anyway, and paying 20 cents extra for Hi-test mogas has really been a losing proposition. Now my local gas station has taken to carrying only regular grade, making for a long drive with a heavy transfer tank when it's time to refill the fuel farm. Plus, regular mogas is all you'll find at airports, so away from home I'm stuck buying 100LL anyway. Add in the fact tha 100LL sometimes sells for less than premium mogas (it used to be a dollar more, at least) and most of the incentinve just disappears. Nothing wrong with a 150 hp RV, even fixed pitch. > >My vote would be for a 180 C/S, though ;-) Won't they run on 80 octane? > I run premium (93 mogas) in my Pitts (O-360-A4-A) because it pings when I'm doing hard akro ..... cross country 87 mogas works just fine. Linn do not archive > >-Stormy > >-----Original Message----- >From: Fiveonepw@aol.com >To: rv-list@matronics.com >Subject: Re: RV-List: Resale Values > > >--> RV-List message posted by: Fiveonepw@aol.com > >In a message dated 10/13/2005 1:19:52 PM Central Standard Time, >ronlee@pcisys.net writes: >One suggestion. Do not install an engine with less than 180 HP. >IMO, I would not even look at it so it has ZERO value to me. Applies >to RV-6, -7 as well > > > >As nice as a big motor might be, being able to run mogas in a low-comp engine >might go a long way to twisting a prospects arm! Checked Airnav ga$ lately? >150 hp O-320s still kick PLENTY of butt! 8-) > >Mark - do not archive ! > > > > ________________________________ Message 9 _____________________________________ Time: 11:44:27 AM PST US From: "Aircraft Technical Book Company" Subject: RV-List: free books all gone --> RV-List message posted by: "Aircraft Technical Book Company" The free FAR/AIMs and test guide books mentioned yesterday are all gone. Thanks, Andy Builder's Bookstore www.buildersbooks.com ________________________________ Message 10 ____________________________________ Time: 11:49:25 AM PST US From: "Ralph E. Capen" Subject: Re: RV-List: One antenna or two? --> RV-List message posted by: "Ralph E. Capen" You're correct - I should have said switch......not splitter -----Original Message----- From: Kelly McMullen Subject: Re: RV-List: One antenna or two? --> RV-List message posted by: "Kelly McMullen" Whatever you do, be certain you are isolating the com receive of each radio from the transmitter of the other, via switch or other physical disconnect mechanism, or you will fry the receiver of one of them. linn walters said: > --> RV-List message posted by: linn walters > > Ralph E. Capen wrote: > >>--> RV-List message posted by: "Ralph E. Capen" >> >>I'm considering the same thing and already purchased the splitter..... >> >>Here's what I'm looking forward to: >> >>One antenna - less parasitic drag ________________________________ Message 11 ____________________________________ Time: 11:57:33 AM PST US Subject: RV-List: Re: One antenna or two? From: "Glaeser, Dennis A" --> RV-List message posted by: "Glaeser, Dennis A" ---------------------- I have a dual comm set-up. Trying to decide whether to have 2 antennas or a splitter (and single antenna). Opinions? Bob R --------------------- I suggest asking this question on the AeroElectric List. As Kelly pointed out, there are real dangers trying to use one antenna for 2 Comm radios, which is why I don't think I've ever seen it done in more years than I want to admit of flying. The drag on an antenna isn't much, but James' approach (use one Archer Comm antenna) is better than a splitter IMHO if you really only want one stick in the breeze. Dennis Glaeser ________________________________ Message 12 ____________________________________ Time: 12:06:00 PM PST US From: "Aircraft Technical Book Company" Subject: RV-List: to Matt Jurotich --> RV-List message posted by: "Aircraft Technical Book Company" Matt Jurotich; please call Rick at Builder's Bookstore regarding your order. 970 887-2207 do not archive ________________________________ Message 13 ____________________________________ Time: 01:34:30 PM PST US From: "Wayne Sweet" Subject: RV-List: Re: AeroElectric-List: One antenna or two? --> RV-List message posted by: "Wayne Sweet" It is my understanding that for comm radios, each one must have it's own antenna. For NAV's, splitters are very common. Wayne ----- Original Message ----- From: "bob rundle" Subject: AeroElectric-List: One antenna or two? > --> AeroElectric-List message posted by: "bob rundle" > > > I have a dual comm set-up. Trying to decide whether to have 2 antennas or > a > splitter (and single antenna). > > Opinions? > > Bob R > > Dont just search. Find. Check out the new MSN Search! > http://search.msn.click-url.com/go/onm00200636ave/direct/01/ > > > ________________________________ Message 14 ____________________________________ Time: 02:41:32 PM PST US From: "David Burton" Subject: Re: RV-List: Resale Values --> RV-List message posted by: "David Burton" > Allow me to jump in here and say that as a 160 hp upgrade owner, I'd go back in a heartbeat if >I had the engine apart for anything else. And we have found that we have a hard time getting 2000 hours out of a 160 horse engine, and no problem getting 2500 and beyond from a stock 150. Although at the rate that most but Rosie put hours on the plane it's probably not much of a factor... ________________________________ Message 15 ____________________________________ Time: 03:55:19 PM PST US From: "Smitty" Subject: RV-List: Finished my HS!! --> RV-List message posted by: "Smitty" Just finished my Horizontal Stabilizer on my RV-9A. (Jes' had to tell somebody) Here's a pic: http://smittysrv.com/big_photo.asp?id=10142005_03.jpg Smitty's RV-9A http://SmittysRV.com ________________________________ Message 16 ____________________________________ Time: 04:16:27 PM PST US From: sportav8r@aol.com Subject: Re: RV-List: Resale Values --> RV-List message posted by: sportav8r@aol.com Well, so far, so good here... oil analysis and compressions all good at 535 SMOH; adding 2 quarts in the 50-hr interval between changes, but means nothing, really. Anything could happen. What failures have you encountered with your 160 hp experience? -Stormy do not archive -----Original Message----- From: David Burton Subject: Re: RV-List: Resale Values --> RV-List message posted by: "David Burton" > Allow me to jump in here and say that as a 160 hp upgrade owner, I'd go back in a heartbeat if >I had the engine apart for anything else. And we have found that we have a hard time getting 2000 hours out of a 160 horse engine, and no problem getting 2500 and beyond from a stock 150. Although at the rate that most but Rosie put hours on the plane it's probably not much of a factor... ________________________________ Message 17 ____________________________________ Time: 04:52:49 PM PST US From: LessDragProd@aol.com Subject: Re: RV-List: One antenna or two? --> RV-List message posted by: LessDragProd@aol.com Bob Archer (Sportcraft Antenna's) has an active COM switch that allows a single COM antenna for a dual COM's. pn SA-010 Regards, Jim Ayers In a message dated 10/14/2005 11:51:32 AM Pacific Daylight Time, recapen@earthlink.net writes: --> RV-List message posted by: "Ralph E. Capen" You're correct - I should have said switch......not splitter ________________________________ Message 18 ____________________________________ Time: 05:32:11 PM PST US From: Fiveonepw@aol.com Subject: Re: RV-List: Resale Values --> RV-List message posted by: Fiveonepw@aol.com In a message dated 10/14/2005 12:06:17 PM Central Standard Time, lwalters2@cfl.rr.com writes: because it pings when I'm doing hard akro >>>> Hi Linn- how do you tell? Mark - do not archive ________________________________ Message 19 ____________________________________ Time: 05:36:37 PM PST US From: "RV6 Flyer" Subject: Re: RV-List: One antenna or two? --> RV-List message posted by: "RV6 Flyer" Where can I buy one at? Gary A. Sobek "My Sanity" RV-6 N157GS O-320 Hartzell, 1,795 + Flying Hours So. CA, USA http://SoCAL_WVAF.rvproject.com ----Original Message Follows---- From: LessDragProd@aol.com Subject: Re: RV-List: One antenna or two? --> RV-List message posted by: LessDragProd@aol.com Bob Archer (Sportcraft Antenna's) has an active COM switch that allows a single COM antenna for a dual COM's. pn SA-010 Regards, Jim Ayers In a message dated 10/14/2005 11:51:32 AM Pacific Daylight Time, recapen@earthlink.net writes: --> RV-List message posted by: "Ralph E. Capen" You're correct - I should have said switch......not splitter ________________________________ Message 20 ____________________________________ Time: 05:44:55 PM PST US From: linn walters Subject: Re: RV-List: Resale Values --> RV-List message posted by: linn walters Fiveonepw@aol.com wrote: >--> RV-List message posted by: Fiveonepw@aol.com > >In a message dated 10/14/2005 12:06:17 PM Central Standard Time, >lwalters2@cfl.rr.com writes: >because it pings when >I'm doing hard akro > > > >Hi Linn- how do you tell? > I really can't .... I really have a hearing problem, but folks on the ground could hear it!!! I've got my ears stuffed into the David Clark headset to keep the noise out. I think what makes it easier for folks on the ground to hear is that the exhause is right between my feet (short straight stacks) and the engine exhaust noise can be pointed away from the person on the ground. Most of the noise a Pitts makes is the prop, and direction makes a difference there too. Linn > >Mark - do not archive > > > > ________________________________ Message 21 ____________________________________ Time: 05:52:40 PM PST US From: Fiveonepw@AOL.COM Subject: Re: RV-List: Resale Values. Do not archive --> RV-List message posted by: Fiveonepw@aol.com In a message dated 10/13/2005 9:15:30 PM Central Standard Time, ronlee@pcisys.net writes: 1 PM. Saturday, 15 Oct, 5T6 >>>> 5 PM Saturday,15 Oct, near BNA- No. 1 buckin' buddy and Mustang II perfectionist builder John D. is marrying off his #2 daughter- now if I'd only gone with the 200hp motor, maybe I coulda made it............... Nah.....................8-) Mark (really would rather be @ 5T6 tomorrow, dammit!) and do not archive ________________________________ Message 22 ____________________________________ Time: 05:56:36 PM PST US From: "Tim Lewis " Subject: RV-List: Parallel Fuel Line for IO-540 (that bypasses the engine driven fuel pump) --> RV-List message posted by: "Tim Lewis " Listers, There are some intersting fuel system design suggestions in (or ) In particular, to minimize the chance of vapor lock, "Fuel Routing should be direct from boost pump through filter to carburetor or fuel injector servo. Have engine driven pump plumbed in parallel, not series, so that possible vapor lock in engine driven pump will be bypassed. A check valve may be necessary, depending on pump type." I'm considering using this approach on my RV-10 (IO-540). In the approach I'm considering the fuel line will "T" after the high pressure boost pump output (aft of firewall). One branch will go thru the engine driven pump. The other branch will go thru an Andair check valve then "T" with the output of the engine driven fuel pump, at which point a single line will go forward to the injection system servo/throttle. With this setup the boost pump will be able to supply fuel to the injection system even if the engine drive boost pump is blocked. Does anybody know of any significant downside to this approach? Thanks, Tim Lewis RV-6A N47TD - 790 hrs RV-10 N31TD (reserved) - under construction ________________________________ Message 23 ____________________________________ Time: 06:23:25 PM PST US From: LessDragProd@aol.com Subject: Re: RV-List: One antenna or two? --> RV-List message posted by: LessDragProd@aol.com Call Bob Archer. (310) 316-8796 Or email Bob at _bobsantennas@earthlink.com_ (mailto:bobsantennas@earthlink.com) Regards, Jim In a message dated 10/14/2005 5:40:53 PM Pacific Daylight Time, rv6_flyer@hotmail.com writes: --> RV-List message posted by: "RV6 Flyer" Where can I buy one at? Gary A. Sobek "My Sanity" RV-6 N157GS O-320 Hartzell, 1,795 + Flying Hours So. CA, USA http://SoCAL_WVAF.rvproject.com ----Original Message Follows---- From: LessDragProd@aol.com Subject: Re: RV-List: One antenna or two? --> RV-List message posted by: LessDragProd@aol.com Bob Archer (Sportcraft Antenna's) has an active COM switch that allows a single COM antenna for a dual COM's. pn SA-010 Regards, Jim Ayers ________________________________ Message 24 ____________________________________ Time: 11:02:38 PM PST US From: "DEAN PSIROPOULOS" Subject: RV-List: Resale values-horsepower --> RV-List message posted by: "DEAN PSIROPOULOS" If you look at the Lycoming specs you'll see that they also offered a version of their 0-360 parallel valve engine with low compression pistons (7.5-1). This engine runs on 80/87 octane and puts out 168 horsepower. If 100LL suddenly gets real scarce, or totally unaffordable, I intend to convert my 180 HP ECI clone engine to this configuration and run autogas in it. Still gives me about 20 extra ponies compared to an 0-320 running autogas (150 HP). I do agree though that 150 HP is plenty of oomph for our little fun machines. Dean do not archive -----Original Message----- Time: 07:39:11 PM PST US From: Fiveonepw@aol.com Subject: Re: RV-List: Resale Values --> RV-List message posted by: Fiveonepw@aol.com In a message dated 10/13/2005 1:19:52 PM Central Standard Time, ronlee@pcisys.net writes: One suggestion. Do not install an engine with less than 180 HP. IMO, I would not even look at it so it has ZERO value to me. Applies to RV-6, -7 as well >>> As nice as a big motor might be, being able to run mogas in a low-comp engine might go a long way to twisting a prospects arm! Checked Airnav ga$ lately? 150 hp O-320s still kick PLENTY of butt! 8-) Mark - do not archive !