---------------------------------------------------------- RV-List Digest Archive --- Total Messages Posted Fri 05/30/08: 11 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:52 AM - Re: RV-8 N220ES FLIES!! (Charles Rowbotham) 2. 04:52 AM - ZULU Headsets (mbick) 3. 05:09 AM - Re: ZULU Headsets (Chuck Jensen) 4. 05:40 AM - Re: Fab Bypass Filter (linn Walters) 5. 05:48 AM - FS Hartzell Prop (Dale Ensing) 6. 05:56 AM - Fw: FS Hartzell Prop (Dale Ensing) 7. 06:47 AM - Re: ZULU Headsets (Sam Buchanan) 8. 03:04 PM - Re: ZULU Headsets (Mike Divan) 9. 06:01 PM - Re: ZULU Headsets (Ralph Finch) 10. 08:29 PM - FAB (Jeff Linebaugh) 11. 08:45 PM - Re: ZULU Headsets (Fiveonepw@aol.com) ________________________________ Message 1 _____________________________________ Time: 03:52:49 AM PST US From: Charles Rowbotham Subject: RE: RV-List: RV-8 N220ES FLIES!! Hi Walt, CONGRATULATIONS and WELL DONE !!!!! Chuck & Dave Rowbotham RV-8A (sold and working on # 2)> Date: Sun, 25 May 2008 20:36:34 -0400> Fro m: rveighta@earthlink.net> To: rv-list@matronics.com> Subject: RV-List: RV- link.net>> > Just want everyone on the list, especially to the many who hav e helped out with answers to my questions, that my RV-8 flew for the first time on May 23rd. Very few problems (minor oil leak, rudder trim tab needed ========================> _ ==========> > > _________________________________________________________________ Keep your kids safer online with Windows Live Family Safety. http://www.windowslive.com/family_safety/overview.html?ocid=TXT_TAGLM_WL_ Refresh_family_safety_052008 ________________________________ Message 2 _____________________________________ Time: 04:52:44 AM PST US From: "mbick" Subject: RV-List: ZULU Headsets I just bought a set of Lightspeed ZULU's to try in my plane and after about 3 weeks I found the noise canceling is pretty good, the comfort is excellent, but the microphone is not very good at all. At full throttle I can barely hear myself as I call left crosswind. Now fair being fair I tried a set of Bose headsets to see if the problem might have been the system itself and all was fine with the Bose. The Bose were better at eliminating noise through the Mic with their standard Mic Muff than the Zulu's were with full leather jacketed Mic Muff and with one of the opening taped shut. The Bose were also a tiny bit better at noise canceling and the BOSE had a worn out set of ear muffs. I tried e-mailing and calling Lightspeed several times to see if there was something I could do about the Mic but so far no response. Again to be fair they are good in most any other environment my buddy Ron tried them in his plane and said they were "the bomb", but I have an extremely noisy plane. Has anyone else experienced the same and a dip switch helped with that? I have it set to mono right now and default settings. Thanks Mike ________________________________ Message 3 _____________________________________ Time: 05:09:47 AM PST US Subject: RE: RV-List: ZULU Headsets From: "Chuck Jensen" Mike, I believe the problem is with your adjustment of the mike, not the mike. My Zulu is very quiet in all regimes and use of the mike has no effect at all. If I recall, there is a gain adjustment in the mike that needs to be lowered. If that doesn't work, contact Zulu as what you are experiencing is not common at all and is either an adjustment or faulty mike. Chuck Jensen -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com]On Behalf Of mbick Sent: Friday, May 30, 2008 7:49 AM Subject: RV-List: ZULU Headsets I just bought a set of Lightspeed ZULU's to try in my plane and after about 3 weeks I found the noise canceling is pretty good, the comfort is excellent, but the microphone is not very good at all. At full throttle I can barely hear myself as I call left crosswind. Now fair being fair I tried a set of Bose headsets to see if the problem might have been the system itself and all was fine with the Bose. The Bose were better at eliminating noise through the Mic with their standard Mic Muff than the Zulu's were with full leather jacketed Mic Muff and with one of the opening taped shut. The Bose were also a tiny bit better at noise canceling and the BOSE had a worn out set of ear muffs. I tried e-mailing and calling Lightspeed several times to see if there was something I could do about the Mic but so far no response. Again to be fair they are good in most any other environment my buddy Ron tried them in his plane and said they were "the bomb", but I have an extremely noisy plane. Has anyone else experienced the same and a dip switch helped with that? I have it set to mono right now and default settings. Thanks Mike ________________________________ Message 4 _____________________________________ Time: 05:40:54 AM PST US From: linn Walters Subject: Re: RV-List: Fab Bypass Filter Not exactly RV-related, but my Pitts has an alternate air flapper as standard equipment. Much like the heat flapper on the firewall. Remember that besides snow/ice, the filters have been blocked by swarms of bugs, and toilet paper ('ribbon cutting' for the masses that like to play) and even balloons (again playing with our airplanes) .......and because I like to play ...... well, I'll have and alternate air source for my engine. I don't mind an extra cable or fab time if it'll save my butt because I participated in some activity at a flyin. YMMV. Linn Tim Lewis wrote: > > There's been one RV-6 fatal accident (that I personally know of) > traced to a snow-clogged air filter. Pilot and passenger killed. I > was lucky to survive the same thing in my RV-6A several years ago. > Van's bypass came out shortly thereafter. > > Observations: - Snow at night or while IMC may not be visible or > recognized. - The air filter can be blocked even when there is > absolutely no visible moisture accumulation on the airframe exterior. > - "I'll remember to use carb heat as a preventative" can be > overlooked/forgotten. - Once blockage has occurred, the carb heat in > an RV (using the carb heat muff) will not melt the snow sufficient to > restore required air flow into the engine. > > Omit a filter bypass at your peril. > > Tim > > P.S. > > Other observations: > - There exists a breed of FAA "investigator" who will manufacture > fantastic stories if the facts don't support his pet views. > - A closed mouth and the AOPA legal services plan can be effective > tools against this sort of FAA fiction writer. > ________________________________ Message 5 _____________________________________ Time: 05:48:57 AM PST US From: "Dale Ensing" Subject: RV-List: FS Hartzell Prop Posting this for my neighbor. He is buying a new engine and prop for his Mo oney. Hartzell Propeller Deal ! Hartzell Model # HC-C2YK-1BF Serial # CH1628 74" Diameter Constant Speed Two Blade Propeller With complete matching polished spinner assembly and stainless steel screws. Condition: Excellent. No cracks. No leaks. Very Good Balance. Very Good Ap pearance. Currently flying on 200 HP Mooney M20E N3265F Ser.# 670058 Last ECI inspection by H&H Propeller 03-2007 All prop documents and maintenance records included. Price: $2400.00 Contact; Allen Osborne 704-608-6637 cell 865 Baron Road 704-843-5338 home Aero Plantation Waxhaw, N C 28173 Call to arrange inspection or further information. ________________________________ Message 6 _____________________________________ Time: 05:56:11 AM PST US From: "Dale Ensing" Subject: Fw: RV-List: FS Hartzell Prop Posting this for my neighbor. He is buying a new engine and prop for his Mo oney. Hartzell Propeller Deal ! Hartzell Model # HC-C2YK-1BF Serial # CH1628 74" Diameter Constant Speed Two Blade Propeller With complete matching polished spinner assembly and stainless steel screws. Condition: Excellent. No cracks. No leaks. Very Good Balance. Very Good Ap pearance. Currently flying on 200 HP Mooney M20E N3265F Ser.# 670058 Last ECI inspection by H&H Propeller 03-2007 All prop documents and maintenance records included. Price: $2400.00 Contact; Allen Osborne 704-608-6637 cell 865 Baron Road 704-843-5338 home Aero Plantation Waxhaw, N C 28173 Call to arrange inspection or further information. ________________________________ Message 7 _____________________________________ Time: 06:47:45 AM PST US From: Sam Buchanan Subject: Re: RV-List: ZULU Headsets mbick wrote: The Bose were better at > eliminating noise through the Mic with their standard Mic Muff than the > Zulu's were with full leather jacketed Mic Muff and with one of the opening > taped shut. BOTH openings MUST be open for a noise-canceling mic to work properly. I'm not familiar with the Zulu, but the mic on my Lightspeed is directional, meaning the correct opening must be pointed at the pilot in order for the noise-canceling to work. Make sure neither of the openings is covered, the mic is pointed the correct way, and as has already been mentioned, it might be good to experiment with different gain settings on the mic. Sam Buchanan ________________________________ Message 8 _____________________________________ Time: 03:04:34 PM PST US From: Mike Divan Subject: Re: RV-List: ZULU Headsets Mike=0A=0AI have the ZULU and love it. Try calling the company and talking to them I bet it is something simple. I will soon be buying another ZULU fo r my wife as she keeps taking mine.=0A=0A Mike Divan=0AN64GH - RV6,flying : )=0ASLOW 7 Builder :(=0AEAA - 577486=0AFREEDOM IS NOT FREE - THANK THE AMER ICAN SOLDIER FOR YOURS!=0A=0A=0A=0A----- Original Message ----=0AFrom: mbic k =0ATo: rv-list@matronics.com=0ASent: Friday, May 3 0, 2008 4:49:14 AM=0ASubject: RV-List: ZULU Headsets=0A=0A=0AI just bought a set of Lightspeed =0AZULU=92s to try in my planeand after about =0A3 week s I found the noise canceling is pretty good, the comfort is excellent, =0A but the microphone is not very good at all. At full throttle I can barely h ear =0Amyself as I call left crosswind. =0ANow fair being fair I tried a s et of Bose headsets to see if the problem might =0Ahave been the system its elf and all was fine with the Bose. The Bose =0Awere better at eliminating noise through the Mic with their standard Mic =0AMuff than the Zulu=92s wer e with full leather jacketed Mic Muff and with one of =0Athe opening taped shut. The Bose were also a tiny =0Abit better at noise cancelingand =0Athe BOSE had a worn out set of ear muffs. I tried e-mailing and calling Lights peed =0Aseveral times to see if there was something I could do about the Mi c but so far =0Ano response. Again to be fair they =0Aare good in most any other environment my buddy Ron tried them in his plane and =0Asaid they we re =93the bomb=94, but I have an extremely noisy plane. Has anyone else =0A experienced the same and a dip switch helped with that? I have it set to mo ========================0A=0A =0A ________________________________ Message 9 _____________________________________ Time: 06:01:46 PM PST US From: "Ralph Finch" Subject: RE: RV-List: ZULU Headsets I upgraded to Zulu from the Lightspeed 3G model. I thought the 3G was pretty good, but the Zulu is in another class altogether. Relatively light, excellent sound, comfortable. Never tried the Bose but I gotta think the Zulu is pretty close to it. ________________________________ Message 10 ____________________________________ Time: 08:29:17 PM PST US From: Jeff Linebaugh Subject: RV-List: FAB Just because "most" guys say it is right shouldn't make it right for you. Nobody has mentioned other types of blockage that could ruin your day. What scares me more than snow/ice blockage is taking a bird down the intake. Shoot, a close friend had his engine quit racing at Reno-- the cause? An (un)lucky bug impacting directly in his fuel vent causing fuel starvation. It is all about your level of risk acceptance. Personally, I don't feel comfortable running around without alternate air. jefflinebaugh@bellsouth.net F1 Rocket Memphis, TN. Sent from iPhone On May 30, 2008, at 1:57, RV-List Digest Server wrote: > * > > ================================================= > Online Versions of Today's List Digest Archive > ================================================= > > Today's complete RV-List Digest can also be found in either of the > two Web Links listed below. The .html file includes the Digest > formatted > in HTML for viewing with a web browser and features Hyperlinked > Indexes > and Message Navigation. The .txt file includes the plain ASCII > version > of the RV-List Digest and can be viewed with a generic text editor > such as Notepad or with a web browser. > > HTML Version: > > http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter 08-05-29&Archive=RV > > Text Version: > > http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter 08-05-29&Archive=RV > > > =============================================== > EMail Version of Today's List Digest Archive > =============================================== > > > ---------------------------------------------------------- > RV-List Digest Archive > --- > Total Messages Posted Thu 05/29/08: 15 > ---------------------------------------------------------- > > > Today's Message Index: > ---------------------- > > 1. 04:21 AM - Re: Fab Bypass Filter (Dale Ensing) > 2. 04:51 AM - Re: Fab Bypass Filter (Tim Bryan) > 3. 05:22 AM - Re: Fab Bypass Filter (Dale Ensing) > 4. 05:50 AM - Re: Fab Bypass Filter (rv6n@optonline.net) > 5. 05:55 AM - Re: Aero-net Reuse... (wskimike) > 6. 05:58 AM - Re: Fab Bypass Filter (Mike Robertson) > 7. 08:02 AM - Re: Fab Bypass Filter (Reak, Brad) > 8. 08:33 AM - Re: Fab Bypass Filter (Terry Watson) > 9. 08:35 AM - Re: Aero-net Reuse... (Matt Dralle) > 10. 09:21 AM - Re: Fab Bypass Filter (mr.gsun@gmail.com) > 11. 11:06 AM - Re: Fab Bypass Filter (Dale Ensing) > 12. 06:20 PM - Re: Fab Bypass Filter (mr.gsun@gmail.com) > 13. 07:21 PM - Re: Fab Bypass Filter (Tim Lewis) > 14. 07:42 PM - Re: Fab Bypass Filter (Emrath) > 15. 08:03 PM - Re: Fab Bypass Filter (Ron Lee) > > > ________________________________ Message 1 > _____________________________________ > > > Time: 04:21:38 AM PST US > From: "Dale Ensing" > Subject: Re: RV-List: Fab Bypass Filter > > > The by-pass door, with magnet, on my O-360 was opening frequently. I > suspect > on high MAP settings. It has been fixed closed. I have the cable > control for > the door but have chosen not to put in on. I think this was another > CYA > issue brought on after Van's became an employee owned business. > > ----- Original Message ----- > From: "Emrath" > Sent: Wednesday, May 28, 2008 10:08 PM > Subject: RV-List: Fab Bypass Filter > > >> >> Starting around late 2003, or so I think, Van's put out a >> modification for >> bypassing the filter in the FAB should the filter get clogged. This >> is for >> the vertical induction carb or FI-servo installations. The original >> method >> utilized a magnet and then a revised version utilized a cable >> operated by >> the pilot. At the time, when I first fabricated the FAB, I >> modified it >> according to the original method using the magnet. Today, as I >> finish up >> my >> panel and get prepared to put the forward top skin on, I began >> thinking >> about this once more. So, I'm wondering if anyone still has the >> magnet >> version of this modification on their ship and can tell me if the >> bypass >> magnet releases and lets air bypass the filter under NORMAL operating >> conditions or not. I'm driving myself crazy trying to determine >> what the >> NORMAL psi differential might be on this door to compare the >> calculated >> force needed to open the door and the amount the door will see during >> NORMAL >> operations. Anyone/everyone have some thoughts on this? >> >> Marty in Brentwood, RV6A >> >> >> > > > ________________________________ Message 2 > _____________________________________ > > > Time: 04:51:46 AM PST US > From: "Tim Bryan" > Subject: RE: RV-List: Fab Bypass Filter > > > Wow, I didn't realize the door was opening under normal conditions. > How did > you determine this? I fly off a grass runway and the thought of all > that > crap getting in my engine is a bit frightening. Also how did you > (what > method) close it off permanent? > > Tim Bryan > RV-6 Flying > N616TB almost 100 hours now > >> -----Original Message----- >> From: owner-rv-list-server@matronics.com [mailto:owner-rv-list- >> server@matronics.com] On Behalf Of Dale Ensing >> Sent: Thursday, May 29, 2008 6:16 AM >> To: rv-list@matronics.com >> Subject: Re: RV-List: Fab Bypass Filter >> >> >> The by-pass door, with magnet, on my O-360 was opening frequently. I >> suspect >> on high MAP settings. It has been fixed closed. I have the cable >> control >> for >> the door but have chosen not to put in on. I think this was another >> CYA >> issue brought on after Van's became an employee owned business. >> >> ----- Original Message ----- >> From: "Emrath" >> To: >> Sent: Wednesday, May 28, 2008 10:08 PM >> Subject: RV-List: Fab Bypass Filter >> >> >>> >>> Starting around late 2003, or so I think, Van's put out a >>> modification >> for >>> bypassing the filter in the FAB should the filter get clogged. >>> This is >> for >>> the vertical induction carb or FI-servo installations. The original >>> method >>> utilized a magnet and then a revised version utilized a cable >>> operated >> by >>> the pilot. At the time, when I first fabricated the FAB, I >>> modified it >>> according to the original method using the magnet. Today, as I >>> finish >> up >>> my >>> panel and get prepared to put the forward top skin on, I began >>> thinking >>> about this once more. So, I'm wondering if anyone still has the >>> magnet >>> version of this modification on their ship and can tell me if the >>> bypass >>> magnet releases and lets air bypass the filter under NORMAL >>> operating >>> conditions or not. I'm driving myself crazy trying to determine >>> what >> the >>> NORMAL psi differential might be on this door to compare the >>> calculated >>> force needed to open the door and the amount the door will see >>> during >>> NORMAL >>> operations. Anyone/everyone have some thoughts on this? >>> >>> Marty in Brentwood, RV6A >>> >>> >>> >>> >>> >>> >>> >> >> >> > > > ________________________________ Message 3 > _____________________________________ > > > Time: 05:22:46 AM PST US > From: "Dale Ensing" > Subject: Re: RV-List: Fab Bypass Filter > > > The area where the door made contact with the airbox showed signs of > opening/closing. I semi-permanently closed it by bonding the door to > the > airbox with fluorosilicone sealant which is resistant to gasoline. > You could > do the same thing with a bit of Proseal from Van's. > I attributed my situation to the O-360 with spark advance from LASAR > ignition which puts out a lot of power on take off. Other engine set- > ups may > not have the problem. However, if I remember correctly, Van's went > to the > cable control set-up because they also discovered the magnet was not > strong > enough to hold the door closed. > RV-6A N118DE > Dale Ensing > > ----- Original Message ----- > From: "Tim Bryan" > Sent: Thursday, May 29, 2008 7:36 AM > Subject: RE: RV-List: Fab Bypass Filter > > >> >> Wow, I didn't realize the door was opening under normal >> conditions. How >> did >> you determine this? I fly off a grass runway and the thought of >> all that >> crap getting in my engine is a bit frightening. Also how did you >> (what >> method) close it off permanent? >> >> Tim Bryan >> RV-6 Flying >> N616TB almost 100 hours now >> >>> -----Original Message----- >>> From: owner-rv-list-server@matronics.com [mailto:owner-rv-list- >>> server@matronics.com] On Behalf Of Dale Ensing >>> Sent: Thursday, May 29, 2008 6:16 AM >>> To: rv-list@matronics.com >>> Subject: Re: RV-List: Fab Bypass Filter >>> >>> >>> The by-pass door, with magnet, on my O-360 was opening frequently. I >>> suspect >>> on high MAP settings. It has been fixed closed. I have the cable >>> control >>> for >>> the door but have chosen not to put in on. I think this was >>> another CYA >>> issue brought on after Van's became an employee owned business. >>> >>> ----- Original Message ----- >>> From: "Emrath" >>> To: >>> Sent: Wednesday, May 28, 2008 10:08 PM >>> Subject: RV-List: Fab Bypass Filter >>> >>> >>>> >>>> Starting around late 2003, or so I think, Van's put out a >>>> modification >>> for >>>> bypassing the filter in the FAB should the filter get clogged. >>>> This is >>> for >>>> the vertical induction carb or FI-servo installations. The >>>> original >>>> method >>>> utilized a magnet and then a revised version utilized a cable >>>> operated >>> by >>>> the pilot. At the time, when I first fabricated the FAB, I >>>> modified it >>>> according to the original method using the magnet. Today, as I >>>> finish >>> up >>>> my >>>> panel and get prepared to put the forward top skin on, I began >>>> thinking >>>> about this once more. So, I'm wondering if anyone still has the >>>> magnet >>>> version of this modification on their ship and can tell me if the >>>> bypass >>>> magnet releases and lets air bypass the filter under NORMAL >>>> operating >>>> conditions or not. I'm driving myself crazy trying to determine >>>> what >>> the >>>> NORMAL psi differential might be on this door to compare the >>>> calculated >>>> force needed to open the door and the amount the door will see >>>> during >>>> NORMAL >>>> operations. Anyone/everyone have some thoughts on this? >>>> >>>> Marty in Brentwood, RV6A >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>> >>> >>> >> >> >> > > > ________________________________ Message 4 > _____________________________________ > > > Time: 05:50:10 AM PST US > From: rv6n@optonline.net > Subject: Re: RV-List: Fab Bypass Filter > > I recently finished my condition inspection and discovered the > magnet missing. > Obviously it vibrated off. I too have received the new cable mod > but refuse > to put it on because it's design worries me. The thought of a rivet > getting sucked > into the induction system is scary. So I removed the remaining > parts of > the original system and fiber-glassed the opening closed because I > would do a > 180 and stay clear of weather that would call for the need of a > bypass in the > first place. Before I sign off on the inspection a simple note > will be made > in my POH explaining why my plane should not be flown in conditions > that will > cause the FAB to be blocked.. > > Do not archive > > ----- Original Message ----- > From: Emrath > Subject: RV-List: Fab Bypass Filter > >> >> Starting around late 2003, or so I think, Van's put out a >> modification for >> bypassing the filter in the FAB should the filter get clogged. >> This is for >> the vertical induction carb or FI-servo installations. The >> original method >> utilized a magnet and then a revised version utilized a cable >> operated by >> the pilot. At the time, when I first fabricated the FAB, I >> modified it >> according to the original method using the magnet. Today, as I >> finish up my >> panel and get prepared to put the forward top skin on, I began >> thinkingabout this once more. So, I'm wondering if anyone >> still has the magnet >> version of this modification on their ship and can tell me if >> the bypass >> magnet releases and lets air bypass the filter under NORMAL operating >> conditions or not. I'm driving myself crazy trying to determine >> what the >> NORMAL psi differential might be on this door to compare the >> calculatedforce needed to open the door and the amount the door >> will see during NORMAL >> operations. Anyone/everyone have some thoughts on this? >> >> Marty in Brentwood, RV6A >> >> >> >> >> >> >> >> > > ________________________________ Message 5 > _____________________________________ > > > Time: 05:55:24 AM PST US > From: "wskimike" > Subject: Re: RV-List: Aero-net Reuse... > > > The Navy hardware manual doesn't allow reuse of these nuts on any > critical > system like flight controls. Otherwise check the run-on torque for > that > specific nut. I think the Navy goes overboard on this issue because > if the > nut was installed properly and not overtorqued, the run on torque > usually is > good for two or three times. I personally would replace it on critical > systems after one re-use. > > Mike > ----- Original Message ----- > From: "Richard Seiders" > Sent: Wednesday, May 28, 2008 6:15 PM > Subject: Re: RV-List: Aero-net Reuse... > > >> >> Ditto, Sam. >> Dick >> >> >> At 01:39 PM 5/28/2008, you wrote: >>> >>> Matt Dralle wrote: >>>> >>>> Hello Listers, >>>> What is the common opinion on the reuse of those aero-nuts with the >>>> little nylon insert? Seems like once you use one and take it off >>>> the >>>> strength of the nylon isn't as good any longer. Is there a >>>> "recommended" >>>> number of uses for them? >>>> Thanks, >>>> Matt >>> >>> >>> Matt, the rule-of-thumb I've always heard is as long as the nut >>> still has >>> enough resistance that you can't thread it on the bolt by hand it >>> is still >>> serviceable. >>> >>> Sam Buchanan >>> >>> >>> >>> >>> >>> >>> -- >>> Release Date: 5/28/2008 7:20 AM >> >> >> > > > ________________________________ Message 6 > _____________________________________ > > > Time: 05:58:43 AM PST US > From: Mike Robertson > Subject: RE: RV-List: Fab Bypass Filter > > > We found signs of the door openeing during high power setting on our > IO-320 > . Once I prosealed the door closed there was a very noticable > increase in > manifold pressure during take-offs and the engine ran much better. > We deci > ded to leave the door closed and replaced it recently with a new FAB > withou > t a door cutout. Much better!! > > Mike Robertson > Das Fed> From: densing@carolina.rr.com> To: rv-list@matronics.com> > Subject: > Re: RV-List: Fab Bypass Filter> Date: Thu, 29 May 2008 08:18:47 > -0400> > - > e area where the door made contact with the airbox showed signs of > > openin > g/closing. I semi-permanently closed it by bonding the door to the > > airbox > with fluorosilicone sealant which is resistant to gasoline. You > could > do > the same thing with a bit of Proseal from Van's.> I attributed my > situatio > n to the O-360 with spark advance from LASAR > ignition which puts > out a lo > t of power on take off. Other engine set-ups may > not have the > problem. Ho > wever, if I remember correctly, Van's went to the > cable control > set-up be > cause they also discovered the magnet was not strong > enough to > hold the d > oor closed.> RV-6A N118DE> Dale Ensing> > ----- Original Message > ----- > Fr > om: "Tim Bryan" > To: > > Sent: Th > ursday, May 29, 2008 7:36 AM> Subject: RE: RV-List: Fab Bypass > Filter> > > > , I didn't realize the door was opening under normal conditions. How > > > di > d> > you determine this? I fly off a grass runway and the thought of > all th > at> > crap getting in my engine is a bit frightening. Also how did > you (wha > t> > method) close it off permanent?> >> > Tim Bryan> > RV-6 Flying> > > N616 > TB almost 100 hours now> >> >> -----Original Message-----> >> From: > owner-r > v-list-server@matronics.com [mailto:owner-rv-list-> >> server@matronics.com > ] On Behalf Of Dale Ensing> >> Sent: Thursday, May 29, 2008 6:16 AM> > >> To: > rv-list@matronics.com> >> Subject: Re: RV-List: Fab Bypass Filter> > >>> >> >>> The by-pass door, with magnet, on my O-360 was opening frequently. >>> I> > >> suspect> >> on high MAP settings. It has been fixed closed. I have >> the ca > ble control> >> for> >> the door but have chosen not to put in on. I > think > this was another CYA> >> issue brought on after Van's became an > employee ow > ned business.> >>> >> ----- Original Message -----> >> From: > "Emrath" th@comcast.net>> >> To: > >> Sent: Wednesday, > May 28 > , 2008 10:08 PM> >> Subject: RV-List: Fab Bypass Filter> >>> >>> >> > > --> R > V-List message posted by: "Emrath" > >> >> >> > > Startin > g around late 2003, or so I think, Van's put out a modification> >> > for> >> >> bypassing the filter in the FAB should the filter get clogged. This >> is> >>> for> >> > the vertical induction carb or FI-servo installations. >>> The ori > ginal> >> > method> >> > utilized a magnet and then a revised > version utili > zed a cable operated> >> by> >> > the pilot. At the time, when I > first fabr > icated the FAB, I modified it> >> > according to the original method > using > the magnet. Today, as I finish> >> up> >> > my> >> > panel and get > prepared > to put the forward top skin on, I began thinking> >> > about this > once mor > e. So, I'm wondering if anyone still has the > >> > magnet> >> > > version of > this modification on their ship and can tell me if the > >> > > bypass> >> > > magnet releases and lets air bypass the filter under NORMAL > operating> >> >> conditions or not. I'm driving myself crazy trying to determine >> what> >> > the> >> > NORMAL psi differential might be on this door to compare > the calc > ulated> >> > force needed to open the door and the amount the door > will see > during> >> > NORMAL> >> > operations. Anyone/everyone have some > thoughts o > n this?> >> >> >> > Marty in Brentwood, RV6A> >> >> >> >> >> >> >> > >> >> >> > ===============> > > > _________________________________________________________________ > E-mail for the greater good. Join the i=92m Initiative from Microsoft. > ood > > ________________________________ Message 7 > _____________________________________ > > > Time: 08:02:07 AM PST US > Subject: Re: RV-List: Fab Bypass Filter > From: "Reak, Brad" > > When I built my air box (RV7A) I followed the directions and built the > alternate air door with the magnet. After flying the first 20 hours > and > reading that Van's had redesigned the alternate air door, I decided > that > for my type of flying, the benefit of an alternate air door was > non-existent but the cost of having the door open when it should > closed > could be high ($$$). So I sealed the door shut and am not loosing any > sleep over the decision. > > > Brad Reak - RV7A, 70 hours. > > > ________________________________ Message 8 > _____________________________________ > > > Time: 08:33:47 AM PST US > From: "Terry Watson" > Subject: RE: RV-List: Fab Bypass Filter > > I removed the door and magnetic latch and installed one of Van's oil > cooler > shutters instead. It looks like it will work fine, when it flies. > > > Terry > > RV-8A > > Seattle > > > From: owner-rv-list-server@matronics.com > [mailto:owner-rv-list-server@matronics.com] On Behalf Of Reak, Brad > Sent: Thursday, May 29, 2008 7:56 AM > Subject: Re: RV-List: Fab Bypass Filter > > > When I built my air box (RV7A) I followed the directions and built the > alternate air door with the magnet. After flying the first 20 hours > and > reading that Van's had redesigned the alternate air door, I decided > that for > my type of flying, the benefit of an alternate air door was non- > existent but > the cost of having the door open when it should closed could be high > ($$$). > So I sealed the door shut and am not loosing any sleep over the > decision. > > > Brad Reak - RV7A, 70 hours. > > > ________________________________ Message 9 > _____________________________________ > > > Time: 08:35:50 AM PST US > From: Matt Dralle > Subject: RE: RV-List: Aero-net Reuse... > > > At 05:24 PM 5/28/2008 Wednesday, you wrote: >> Doing it and making it right are two entirely different questions. >> Paragraph 7-64 f. addresses nylon nuts. >>>> >>>> What is the common opinion on the reuse of those aero-nuts with the >>>> little nylon insert? Seems like once you use one and take it off >>>> the >> > > Thank for all the great feedback, everyone! > > Matt > > > ________________________________ Message 10 > ____________________________________ > > > Time: 09:21:22 AM PST US > From: mr.gsun@gmail.com > Subject: Re: RV-List: Fab Bypass Filter > > I've got a -7 with the forward facing injection and no bypass > installed. > I've been considering installing one. My thought had been to put in > a cable > operated air door with some scat tubing feeding it from a NACA vent > under > the front of the cowl. My thought was that it wouldn't clog or ice > up when > the air filter does even though it would be cold air. The other use > for it > would be to increase my MP when I open it during cruise. > > Any thoughts on this one? > > Greg > > do not archive > > On Wed, May 28, 2008 at 7:08 PM, Emrath wrote: > >> >> Starting around late 2003, or so I think, Van's put out a >> modification for >> bypassing the filter in the FAB should the filter get clogged. This >> is for >> the vertical induction carb or FI-servo installations. The >> original method >> utilized a magnet and then a revised version utilized a cable >> operated by >> the pilot. At the time, when I first fabricated the FAB, I >> modified it >> according to the original method using the magnet. Today, as I >> finish up >> my >> panel and get prepared to put the forward top skin on, I began >> thinking >> about this once more. So, I'm wondering if anyone still has the >> magnet >> version of this modification on their ship and can tell me if the >> bypass >> magnet releases and lets air bypass the filter under NORMAL operating >> conditions or not. I'm driving myself crazy trying to determine >> what the >> NORMAL psi differential might be on this door to compare the >> calculated >> force needed to open the door and the amount the door will see during >> NORMAL >> operations. Anyone/everyone have some thoughts on this? >> >> Marty in Brentwood, RV6A >> >> > > ________________________________ Message 11 > ____________________________________ > > > Time: 11:06:47 AM PST US > From: "Dale Ensing" > Subject: Re: RV-List: Fab Bypass Filter > > Greg, > Connecting the bypass door via SCAT tubing hooked up to a NACA vent > would give you fresh, unheated, unfiltered air but why open the bypass > door in normal cruise? Van's ram air scoop supposedly gives a minimal > amount of MAP increase. Don't think the NACA vent would give any ram > air > pressure. And would the NACA vent also be prone to freezing up to some > degree in a cold rain just as the filter in the airbox? Maybe not but > worh thinking about. > Dale > ----- Original Message ----- > From: mr.gsun@gmail.com > To: rv-list@matronics.com > Sent: Thursday, May 29, 2008 12:17 PM > Subject: Re: RV-List: Fab Bypass Filter > > > I've got a -7 with the forward facing injection and no bypass > installed. I've been considering installing one. My thought had been > to put in a cable operated air door with some scat tubing feeding it > from a NACA vent under the front of the cowl. My thought was that it > wouldn't clog or ice up when the air filter does even though it > would be > cold air. The other use for it would be to increase my MP when I open > it during cruise. > > Any thoughts on this one? > > Greg > > do not archive > > > On Wed, May 28, 2008 at 7:08 PM, Emrath wrote: > > > Starting around late 2003, or so I think, Van's put out a > modification for > bypassing the filter in the FAB should the filter get clogged. This > is for > the vertical induction carb or FI-servo installations. The > original > method > utilized a magnet and then a revised version utilized a cable > operated by > the pilot. At the time, when I first fabricated the FAB, I > modified > it > according to the original method using the magnet. Today, as I > finish up my > panel and get prepared to put the forward top skin on, I began > thinking > about this once more. So, I'm wondering if anyone still has the > magnet > version of this modification on their ship and can tell me if the > bypass > magnet releases and lets air bypass the filter under NORMAL > operating > conditions or not. I'm driving myself crazy trying to determine > what the > NORMAL psi differential might be on this door to compare the > calculated > force needed to open the door and the amount the door will see > during NORMAL > operations. Anyone/everyone have some thoughts on this? > > Marty in Brentwood, RV6A > > > ________________________________ Message 12 > ____________________________________ > > > Time: 06:20:48 PM PST US > From: mr.gsun@gmail.com > Subject: Re: RV-List: Fab Bypass Filter > > My thought is that the air filter robs some pressure and by > providing fresh > air from a scoop or NACA vent might make up for some of this loss. > I've > thought about the vent being prone to freezing or ice but since it > is on the > bottom of the cowl and "facing" downward it would accumulate ice > slower than > the air filter which sits just inside the engine air inlet facing > upwards > just waiting for ice to cover it up. This whole idea wouldn't be > the best > for preventing ice from suffocating the engine compared to warm air > from > inside the cowl but I think there might be some benefit from the ram > air. > Maybe I need a larger NACA vent & tubing. I don't want Van's lower > snout, > though. Just don't like the looks of it. > > Greg > > On Thu, May 29, 2008 at 11:03 AM, Dale Ensing > > wrote: > >> Greg, >> Connecting the bypass door via SCAT tubing hooked up to a NACA vent >> would >> give you fresh, unheated, unfiltered air but why open the bypass >> door in >> normal cruise? Van's ram air scoop supposedly gives a minimal >> amount of MAP >> increase. Don't think the NACA vent would give any ram air >> pressure. And >> would the NACA vent also be prone to freezing up to some degree in >> a cold >> rain just as the filter in the airbox? Maybe not but worh thinking >> about. >> Dale >> >> ----- Original Message ----- >> *From:* mr.gsun@gmail.com >> *To:* rv-list@matronics.com >> *Sent:* Thursday, May 29, 2008 12:17 PM >> *Subject:* Re: RV-List: Fab Bypass Filter >> >> I've got a -7 with the forward facing injection and no bypass >> installed. >> I've been considering installing one. My thought had been to put >> in a cable >> operated air door with some scat tubing feeding it from a NACA vent >> under >> the front of the cowl. My thought was that it wouldn't clog or ice >> up when >> the air filter does even though it would be cold air. The other >> use for it >> would be to increase my MP when I open it during cruise. >> >> Any thoughts on this one? >> >> Greg >> >> do not archive >> >> On Wed, May 28, 2008 at 7:08 PM, Emrath wrote: >> >>> >>> Starting around late 2003, or so I think, Van's put out a >>> modification for >>> bypassing the filter in the FAB should the filter get clogged. >>> This is for >>> the vertical induction carb or FI-servo installations. The original >>> method >>> utilized a magnet and then a revised version utilized a cable >>> operated by >>> the pilot. At the time, when I first fabricated the FAB, I >>> modified it >>> according to the original method using the magnet. Today, as I >>> finish up >>> my >>> panel and get prepared to put the forward top skin on, I began >>> thinking >>> about this once more. So, I'm wondering if anyone still has the >>> magnet >>> version of this modification on their ship and can tell me if the >>> bypass >>> magnet releases and lets air bypass the filter under NORMAL >>> operating >>> conditions or not. I'm driving myself crazy trying to determine >>> what the >>> NORMAL psi differential might be on this door to compare the >>> calculated >>> force needed to open the door and the amount the door will see >>> during >>> NORMAL >>> operations. Anyone/everyone have some thoughts on this? >>> >>> Marty in Brentwood, RV6A >>> >>> >>> >>> >>> >>> >>> >>> >> * >> >> 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 13 > ____________________________________ > > > Time: 07:21:28 PM PST US > From: Tim Lewis > Subject: Re: RV-List: Fab Bypass Filter > > > There's been one RV-6 fatal accident (that I personally know of) > traced > to a snow-clogged air filter. Pilot and passenger killed. > I was lucky to survive the same thing in my RV-6A several years ago. > Van's bypass came out shortly thereafter. > > Observations: > - Snow at night or while IMC may not be visible or recognized. > - The air filter can be blocked even when there is absolutely no > visible > moisture accumulation on the airframe exterior. > - "I'll remember to use carb heat as a preventative" can be > overlooked/forgotten. > - Once blockage has occurred, the carb heat in an RV (using the carb > heat muff) will not melt the snow sufficient to restore required air > flow into the engine. > > Omit a filter bypass at your peril. > > Tim > > P.S. > > Other observations: > - There exists a breed of FAA "investigator" who will manufacture > fantastic stories if the facts don't support his pet views. > - A closed mouth and the AOPA legal services plan can be effective > tools > against this sort of FAA fiction writer. > > -- > Tim Lewis -- HEF (Manassas, VA) > RV-6A N47TD -- 1000 hrs > RV-10 #40059 under construction > > >> >> >> The by-pass door, with magnet, on my O-360 was opening frequently. I >> suspect on high MAP settings. It has been fixed closed. I have the >> cable control for the door but have chosen not to put in on. I think >> this was another CYA issue brought on after Van's became an employee >> owned business. >> >> ----- Original Message ----- From: "Emrath" >> To: >> Sent: Wednesday, May 28, 2008 10:08 PM >> Subject: RV-List: Fab Bypass Filter >> >> >>> >>> Starting around late 2003, or so I think, Van's put out a >>> modification for >>> bypassing the filter in the FAB should the filter get clogged. This >>> is for >>> the vertical induction carb or FI-servo installations. The original >>> method >>> utilized a magnet and then a revised version utilized a cable >>> operated by >>> the pilot. At the time, when I first fabricated the FAB, I >>> modified it >>> according to the original method using the magnet. Today, as I >>> finish up my >>> panel and get prepared to put the forward top skin on, I began >>> thinking >>> about this once more. So, I'm wondering if anyone still has the >>> magnet >>> version of this modification on their ship and can tell me if the >>> bypass >>> magnet releases and lets air bypass the filter under NORMAL >>> operating >>> conditions or not. I'm driving myself crazy trying to determine >>> what >>> the >>> NORMAL psi differential might be on this door to compare the >>> calculated >>> force needed to open the door and the amount the door will see >>> during >>> NORMAL >>> operations. Anyone/everyone have some thoughts on this? >>> >>> Marty in Brentwood, RV6A >>> >>> >>> >>> >>> >>> >>> >> >> > > > ________________________________ Message 14 > ____________________________________ > > > Time: 07:42:36 PM PST US > From: "Emrath" > Subject: Re: RV-List: Fab Bypass Filter > > > Well, seems the consensus is to just not use a bypass for the filter > based > on the responses. Thanks to everyone. > > Marty in Brentwood, RV6A > > Starting around late 2003, or so I think, Van's put out a > modification > for > bypassing the filter in the FAB should the filter get clogged. > This is > for > the vertical induction carb or FI-servo installations. The > original > method > utilized a magnet and then a revised version utilized a cable > operated > by > the pilot. At the time, when I first fabricated the FAB, I > modified > it > according to the original method using the magnet. Today, as I > finish > up my > panel and get prepared to put the forward top skin on, I began > thinking > about this once more. So, I'm wondering if anyone still has the > magnet > version of this modification on their ship and can tell me if the > bypass > magnet releases and lets air bypass the filter under NORMAL > operating > conditions or not. I'm driving myself crazy trying to > determine what > the > NORMAL psi differential might be on this door to compare the > calculated > force needed to open the door and the amount the door will see > during > NORMAL > operations. Anyone/everyone have some thoughts on this? > > Marty in Brentwood, RV6A > > > ________________________________ Message 15 > ____________________________________ > > > Time: 08:03:43 PM PST US > From: "Ron Lee" > Subject: Re: RV-List: Fab Bypass Filter > > > Don't fly in snow/cold clouds. > > Ron Lee > > ----- Original Message ----- > From: "Tim Lewis" > Sent: Thursday, May 29, 2008 8:17 PM > Subject: Re: RV-List: Fab Bypass Filter > > >> >> There's been one RV-6 fatal accident (that I personally know of) >> traced to >> a snow-clogged air filter. Pilot and passenger killed. I was lucky >> to >> survive the same thing in my RV-6A several years ago. Van's bypass >> came >> out shortly thereafter. >> >> Observations: - Snow at night or while IMC may not be visible or >> recognized. - The air filter can be blocked even when there is >> absolutely >> no visible moisture accumulation on the airframe exterior. >> - "I'll remember to use carb heat as a preventative" can be >> overlooked/forgotten. - Once blockage has occurred, the carb heat >> in an RV >> (using the carb heat muff) will not melt the snow sufficient to >> restore >> required air flow into the engine. >> >> Omit a filter bypass at your peril. >> >> Tim >> >> P.S. >> >> Other observations: >> - There exists a breed of FAA "investigator" who will manufacture >> fantastic stories if the facts don't support his pet views. >> - A closed mouth and the AOPA legal services plan can be effective >> tools >> against this sort of FAA fiction writer. >> >> -- >> Tim Lewis -- HEF (Manassas, VA) >> RV-6A N47TD -- 1000 hrs >> RV-10 #40059 under construction >> >> >>> >>> >>> The by-pass door, with magnet, on my O-360 was opening frequently. I >>> suspect on high MAP settings. It has been fixed closed. I have the >>> cable >>> control for the door but have chosen not to put in on. I think >>> this was >>> another CYA issue brought on after Van's became an employee owned >>> business. >>> >>> ----- Original Message ----- From: "Emrath" >>> To: >>> Sent: Wednesday, May 28, 2008 10:08 PM >>> Subject: RV-List: Fab Bypass Filter >>> >>> >>>> >>>> Starting around late 2003, or so I think, Van's put out a >>>> modification >>>> for >>>> bypassing the filter in the FAB should the filter get clogged. >>>> This is >>>> for >>>> the vertical induction carb or FI-servo installations. The >>>> original >>>> method >>>> utilized a magnet and then a revised version utilized a cable >>>> operated >>>> by >>>> the pilot. At the time, when I first fabricated the FAB, I >>>> modified it >>>> according to the original method using the magnet. Today, as I >>>> finish >>>> up my >>>> panel and get prepared to put the forward top skin on, I began >>>> thinking >>>> about this once more. So, I'm wondering if anyone still has the >>>> magnet >>>> version of this modification on their ship and can tell me if the >>>> bypass >>>> magnet releases and lets air bypass the filter under NORMAL >>>> operating >>>> conditions or not. I'm driving myself crazy trying to determine >>>> what >>>> the >>>> NORMAL psi differential might be on this door to compare the >>>> calculated >>>> force needed to open the door and the amount the door will see >>>> during >>>> NORMAL >>>> operations. Anyone/everyone have some thoughts on this? >>>> >>>> Marty in Brentwood, RV6A >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>> >>> >>> >>> >>> >>> >> >> >> > > ________________________________ Message 11 ____________________________________ Time: 08:45:32 PM PST US From: Fiveonepw@aol.com Subject: Re: RV-List: ZULU Headsets In a message dated 05/30/2008 6:54:12 AM Central Daylight Time, mbick@carolina.rr.com writes: Has anyone else experienced the same and a dip switch helped with that? I have it set to mono right now and default settings. >>> I purchased Zulu at S&F (Moving up from XC Cross-country) and was very happy with all aspects of performance. Then had opportunity to compare Bose X vs. Zulu on long cross-country recently, and found them pretty comparable- both 10 on comfort, but seemed the Zulu somewhat better on audio quality (expecially with XM radio) and possibly a slight edge on ANR. Unfortunately, Zulu recently quit ANRing. Batts fine, connections fine, but no joy. I could occasionally tilt them to a specific angle and the ANR would return, then a slight head motion would stop ANR. Pretty annoying. Sent Lightspeed a service request three days ago- no response yet... Mark **************Get trade secrets for amazing burgers. Watch "Cooking with Tyler Florence" on AOL Food. 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