---------------------------------------------------------- Zenith-List Digest Archive --- Total Messages Posted Wed 09/21/05: 29 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:43 AM - Re: 601HDS sport pilot eligible?? (JOHN STARN) 2. 04:39 AM - Re: 601HDS sport pilot eligible?? (Bryan Martin) 3. 05:49 AM - Re: HD or HDS suitability for Jabiru 2200 85hp (Larry McFarland) 4. 06:13 AM - 601HDS sport pilot eligible?? (Grant Corriveau) 5. 06:41 AM - Re: 601HDS sport pilot eligible?? (Weston, Jim) 6. 06:53 AM - 601HDS sport pilot eligible?? (Grant Corriveau) 7. 07:04 AM - CAS (Jeff Small) 8. 07:08 AM - Re: 601HDS sport pilot eligible?? (Leo Gates) 9. 07:29 AM - Any 601XL owners near Pensacola FL, or going to SERFI Oct 7-9? (Rusty) 10. 08:02 AM - Re: engine/601 combo and insurance (Hinde, Frank George (Corvallis)) 11. 08:44 AM - Re: Any 601XL owners near Pensacola FL, or going to SERFI Oct 7-9? (Zodie Rocket) 12. 09:24 AM - Suitable Substitute (Tommy Walker) 13. 09:25 AM - Re: CAS (Hal Rozema) 14. 10:01 AM - VG's (Stanley Challgren) 15. 10:37 AM - Re: Suitable Substitute (Phil Maxson) 16. 10:45 AM - Re: 601HDS sport pilot eligible?? (Gary Gower) 17. 10:53 AM - Re: Any 601XL owners near Pensacola FL, or going to SERFI Oct 7-9? (Rusty) 18. 11:47 AM - Re: N601LG First Flight! (Lance Gingell) 19. 02:53 PM - EGT temps ? (Aaron) 20. 03:15 PM - Re: VG's (William J. Naumuk) 21. 03:36 PM - Clarity Aloft in-the-ear headset (Larry McFarland) 22. 03:55 PM - Re: EGT temps ? (Hinde, Frank George (Corvallis)) 23. 03:56 PM - Dopey question maybe.... (Stephen R. Look) 24. 04:10 PM - Re: EGT temps ? (Larry McFarland) 25. 06:01 PM - Re: CAS (Bryan Martin) 26. 11:54 PM - SERFI (Tommy Walker) 27. 11:54 PM - Re: VG's (Stanley Challgren) 28. 11:54 PM - Re: Source for inspection plates (Steve Hulland) 29. 11:54 PM - Tank end access cover (Brad Cohen) ________________________________ Message 1 _____________________________________ Time: 03:43:13 AM PST US From: "JOHN STARN" Subject: Re: Zenith-List: 601HDS sport pilot eligible?? --> Zenith-List message posted by: "JOHN STARN" Right on, but since N561FS, an HRII, is AOA equipped & capable of speeds in excess of the normal Lear Jet approach and even though the IAS at stall IS 45 Knots but we really don't think it would qualify as an LSA anyway. Gee, lighten up go fly... Inhale & have a great day. 8*) KABONG Do Not Archive ----- Original Message ----- From: "Bryan Martin" Subject: Re: Zenith-List: 601HDS sport pilot eligible?? > --> Zenith-List message posted by: Bryan Martin > > Ground speed is higher at Big Bear because true airspeed is higher at the > higher altitude but neither TAS nor ground speed have anything to do with > stall speed. > > If your airplane stalls at an indicated > airspeed of 45 knots, it probably won't qualify for LSA because for most > aircraft, the CAS will be several knots faster. > > > -- > Bryan Martin > N61BM, CH 601 XL, Stratus Subaru. > do not archive. > > > on 9/20/05 9:04 PM, JOHN STARN at jhstarn@verizon.net wrote: > >> --> Zenith-List message posted by: "JOHN STARN" >> >> Lets see now....I'm on a short final with a Lear jet behind me & I'm to >> calculate CAS as I cross over the threshold. NOPE, from APV (Apple >> Valley >> 3,400) or Big Bear (7,000+) I'll use indicated, even thou I can tell that >> my >> ground speed is faster as Big Bear. KABONG ________________________________ Message 2 _____________________________________ Time: 04:39:17 AM PST US Subject: Re: Zenith-List: 601HDS sport pilot eligible?? From: Bryan Martin --> Zenith-List message posted by: Bryan Martin The only place where the stall speed is officially recorded for an experimental is in the log book entry at the completion of the phase 1 testing. If you find during the phase 1 testing that the stall speed meets the LSA limitation, that will probably satisfy the FAA. Modifying the plane after this point probably will not. But if you want the lower stall speed just for safety's sake, go for it. -- Bryan Martin N61BM, CH 601 XL, Stratus Subaru. do not archive. on 9/20/05 10:35 PM, Jeff Davidson at jeffrey_davidson@earthlink.net wrote: > --> Zenith-List message posted by: "Jeff Davidson" > > > Does anyone else remember reading that the aircraft must have always been in > compliance with LSA criteria since the original Airworthiness Certificate > was issued? My understanding was that you could not modify an existing > aircraft with an airworthiness certificate that didn't meet the criteria to > make it compliant. > > Jeff Davidson > You are correct, this is the official view at the FAA. But this is much easier to enforce for standard category aircraft because of the clear paper trail required for them, for experimentals it might be harder to determine if the plane ever fell outside of the limits of the rule. > > > > > ________________________________ Message 3 _____________________________________ Time: 05:49:51 AM PST US From: Larry McFarland Subject: Re: Zenith-List: HD or HDS suitability for Jabiru 2200 85hp --> Zenith-List message posted by: Larry McFarland Darin, Given that you've decided against the XL which offers relatively better performance than either HD or HDS, and that you're going to use the 85 hp 2200 and because 90 kts is your target, I'd say go with the HD. It generates a huge amount of lift compared to the HDS or XL. With pants, the HD should easily go the 90 kt airspeed. With 85 hp, you should easily hit 900 fpm or better with the HD. The HDS will add about 10 mph to airspeed if the plane is clean, but for what you're after, I'd go with the HD. It's a great performer. Larry McFarland - 601HDS - Stratus Subaru at www.macsmachine.com Darin McLEAN wrote: >--> Zenith-List message posted by: "Darin McLEAN" > >Hi everyone, > >Just wanted to run a quick concensus from people with experience in flying >HD and HDS aircraft with 80hp to gain some real practical figures. >I intend to build a Zodiac with a Jabiru 2200 engine (85hp) with standard >senheiser prop. > >1. Would you think the HD is more suitable than the HDS for the Jabiru 85hp? >2. Would there be much difference in cruise speed between the two? >3. What would you imagine the 75% cruise speed to be for the HD versus HDS >both with wheel pants? >4. Would the climb on the HDS be reasonable (say >600-700fpm)? >5. Please add any additional comments you might have about choosing the >right plane for this engine. >6. I am somehow hoping for a cruise in the 90kts area at the least. > >You input would be greatly appreciated. > >Cheers >Darin McLEAN (just starting the CH601 rudder kit) >www.recreationalflying.net > > > > ________________________________ Message 4 _____________________________________ Time: 06:13:04 AM PST US Subject: Zenith-List: 601HDS sport pilot eligible?? From: Grant Corriveau --> Zenith-List message posted by: Grant Corriveau > Subject: RE: Zenith-List: 601HDS sport pilot eligible?? > I know of at least one HDS that specifically lists his clean stall speed as > "exactly" 51mph.... If that's all it takes to qualify (I don't really follow this discussion), then it's easily met by rigging your ailerons down a degree or two on both sides. I've done this to get a better inflight attitude for the speeds I cruise at (105 to 115 mph), and now it stalls at 50ias vs. 60 before. STOL takeoff and landing characteristics also improve to give some performance 'trade-offs' vs. a higher cruise speed. FWIW -- Grant Corriveau Volunteer Area Representative - Montreal Mission Aviation Fellowship grantc@ca.inter.net www.mafc.org ________________________________ Message 5 _____________________________________ Time: 06:41:54 AM PST US Subject: RE: Zenith-List: 601HDS sport pilot eligible?? From: "Weston, Jim" --> Zenith-List message posted by: "Weston, Jim" I know that we're all trying to figure this one out, but if you look at the EAA website on this subject they have a list of aircraft, by model, that qualify. Here's the website ( http://www.sportpilot.org/lsa/likely_lsa.html). They list the CH601, the CH701, and the CH601XL is listed separately. The question is, since they list the CH601 does this imply that the entire series is included (CH601HD, CH601HDS, & CH601UL)? Since they've listed it this way, I'm thinking that it does. Which would mean that someone has already done the leg work about the stall speed issue. Jim Weston CH601HDS Concord, Ga. -----Original Message----- From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of Grant Corriveau Subject: Zenith-List: 601HDS sport pilot eligible?? --> Zenith-List message posted by: Grant Corriveau > Subject: RE: Zenith-List: 601HDS sport pilot eligible?? > I know of at least one HDS that specifically lists his clean stall > speed as "exactly" 51mph.... If that's all it takes to qualify (I don't really follow this discussion), then it's easily met by rigging your ailerons down a degree or two on both sides. I've done this to get a better inflight attitude for the speeds I cruise at (105 to 115 mph), and now it stalls at 50ias vs. 60 before. STOL takeoff and landing characteristics also improve to give some performance 'trade-offs' vs. a higher cruise speed. FWIW -- Grant Corriveau Volunteer Area Representative - Montreal Mission Aviation Fellowship grantc@ca.inter.net www.mafc.org ________________________________ Message 6 _____________________________________ Time: 06:53:06 AM PST US Subject: Zenith-List: 601HDS sport pilot eligible?? From: Grant Corriveau --> Zenith-List message posted by: Grant Corriveau I've been thinking lately about my Zodie -- and how much fun I'm having with it as a semi-STOL airplane. I can understand that others want more top end speed, but personally I don't mind flying at 105 to 110 mph (that's about 180 kmph for us Canadians! Wow - doesn't that sound even faster?) The tradeoff is that I can get airborne before the BEGINNING of the official runway section at my homefield, and I can make reasonably short landings (still needs better brakes -- i.e. the Matco brake mod?)... but at least now I can be sure of taking off from anything I can successfully land on! I currently have my 70" warp drive 3-blade, tapered prop pitched at 15.5 degrees. I get a static rpm on the CAM100 of 5000 rpm. The airplane accelerates like crazy; the nosewheel can be lifted off at 40ias, the airplane comes off in ground effect at 50 and climbs at about 800 fpm at 75mph. When I level off at 2500 ASL with full throttle, the engine revs to max cont. of 5300rpm and the ias nudges 120mph. At a more comfortable 5,000 rpm I get something between 110 and 115; and at max. range rpm (estimated) of 4800 I still get 105+ mph. With the price of fuel lately, I'm using this setting more often. To each his own -- but I'm seriously thinking of adding the VGs and getting more STOL performance from my Zodie, and forgetting about top speed. I also like the safety factor inherent in slower landing speeds. Fwiw -- Grant Corriveau C-GHTF / HDS / CAM100 > "My only recommendation would be to forget the temporary installation- they > work. The clean airplane was stalling at 48 , your VGs bring it down > to 41.5. ________________________________ Message 7 _____________________________________ Time: 07:04:53 AM PST US From: "Jeff Small" Subject: Zenith-List: CAS --> Zenith-List message posted by: "Jeff Small" My point was that the FAA doesn't care what the stall speed is in IAS, they want the stall speed in CAS which will be greater than indicated because at low airspeeds (high angle of attack) the pitot tube will not be pointed directly into the airstream. If your airplane stalls at an indicated airspeed of 45 knots, it probably won't qualify for LSA because for most aircraft, the CAS will be several knots faster. Bryan, Can you find a part of the regs that indicates the FAA expects builders of amateur-built aircraft to figure out and mark CAS? regards jeff HDS/3300 260 hours do not archive ________________________________ Message 8 _____________________________________ Time: 07:08:51 AM PST US From: "Leo Gates" Subject: RE: Zenith-List: 601HDS sport pilot eligible?? --> Zenith-List message posted by: "Leo Gates" I think I'm the person referred to as having a stall speed of "exactly" 51 MPH. When my plane was inspected, the Chief Maintenance Inspector for my area stated, "The FAA position is that every aircraft is unique, whether built from a kit or original design. The stall speed is what is documented by the test pilot during Phase 1 testing. If you say it is 51 MPH we are not going to argue with you." FWIW my IAS is 43 MPH at stall. At the other end, when IAS is 124 MPH, CAS is 120 MPH. Leo -------Original Message------- From: zenith-list@matronics.com Subject: RE: Zenith-List: 601HDS sport pilot eligible?? --> Zenith-List message posted by: "B Johnson" It depends.... I know of at least one HDS that specifically lists his clean stall speed as "exactly" 51mph.... -Bruce -----Original Message----- From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of Rick Framil Subject: Zenith-List: 601HDS sport pilot eligible?? --> Zenith-List message posted by: "Rick Framil" Hello, I was wondering if the 601HDS is sport pilot eligible? Rick -- -- ________________________________ Message 9 _____________________________________ Time: 07:29:23 AM PST US From: "Rusty" <13brv3c@bellsouth.net> Subject: Zenith-List: Any 601XL owners near Pensacola FL, or going to SERFI Oct 7-9? --> Zenith-List message posted by: "Rusty" <13brv3c@bellsouth.net> Greetings, I'm hoping to get up to the South East Regional Fly-In (SERFI) in Evergreen AL, and wondered if there were any 601 (particularly XL) builders that were planning to attend. I'd love to see one of these in person. http://www.serfi.org/ Also, are there any builders near the Pensacola, FL area that wouldn't mind showing off their 601XL project? Thanks, Rusty (can't have too many projects) Do not archive ________________________________ Message 10 ____________________________________ Time: 08:02:04 AM PST US Subject: RE: Zenith-List: engine/601 combo and insurance From: "Hinde, Frank George (Corvallis)" --> Zenith-List message posted by: "Hinde, Frank George (Corvallis)" The subaru airplanes had a bit of a tough time due to what the insurance company dscribed as "unexplained engine stoppages"....They wer'nt unexplained...the valve guides were falling out! That seems to have been resolved now but I had a bit of a hard time securing insurance for a couple of years. Needless to say that helped me make my engine choice for my current airplane. Frank Do not archive -----Original Message----- From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of Al Young Subject: Re: Zenith-List: engine/601 combo and insurance --> Zenith-List message posted by: "Al Young" Rick- The only combo that I have heard that has problems is the Zenith-Corvair that is converted by anyone other than WW. Buy one that he has personally converted and it seems that there is no problem. This should change in time with more conversions coming on line. Al Young 601XL- Jab 3300 Do not archive ________________________________ Message 11 ____________________________________ Time: 08:44:32 AM PST US From: "Zodie Rocket" Subject: RE: Zenith-List: Any 601XL owners near Pensacola FL, or going to SERFI Oct 7-9? --> Zenith-List message posted by: "Zodie Rocket" Rusty , try Flight Crafters Builder Assistance Centers can provide assistance and instruction for the aviation kit builder. Flight Crafters is also a distributor for Zenith Aircraft kits. Contact us at 813-779-1156 or 813-655-6411 for more information Flight Crafters is located adjacent to the Zephyrhills Municipal Airport. Our address is 39244 South Avenue. Mark Townsend Alma, Ontario Zodiac 601XL , Osprey 2 serial # 751 President: Kitchener/Waterloo RAA Chapter www.ch601.org / www.ch701.com / www.Osprey2.com -----Original Message----- Subject: Zenith-List: Any 601XL owners near Pensacola FL, or going to SERFI Oct 7-9? --> Zenith-List message posted by: "Rusty" <13brv3c@bellsouth.net> Also, are there any builders near the Pensacola, FL area that wouldn't mind showing off their 601XL project? Thanks, Rusty (can't have too many projects) Do not archive -- 9/21/2005 ________________________________ Message 12 ____________________________________ Time: 09:24:20 AM PST US From: "Tommy Walker" Subject: Zenith-List: Suitable Substitute --> Zenith-List message posted by: "Tommy Walker" Listers, would it be acceptable to substitute an AN3-4A bolt, washer and self-locking nut for an A5 Rivet? What I've managed to do is misalign three holes slightly, right now the holes are drilled to 30. When I drill out to 20, they are still going to be slightly off (about 1 mm). By drilling out to the above size bolt, I can have a clean hole, with what I believe to be adequate edge distance. The area is a longeron in the 7F3-1 rear fuselage splice. Obviously a critical area. Thanks, Tommy Walker in Alabama Do Not Archive ________________________________ Message 13 ____________________________________ Time: 09:25:41 AM PST US From: Hal Rozema Subject: Re: Zenith-List: CAS --> Zenith-List message posted by: Hal Rozema Use GPS in four directions and average Jeff Small wrote: >--> Zenith-List message posted by: "Jeff Small" > >My point was that the FAA doesn't care what the stall speed is in IAS, they >want the stall speed in CAS which will be greater than indicated because at >low airspeeds (high angle of attack) the pitot tube will not be pointed >directly into the airstream. If your airplane stalls at an indicated >airspeed of 45 knots, it probably won't qualify for LSA because for most >aircraft, the CAS will be several knots faster. > >Bryan, > >Can you find a part of the regs that indicates the FAA expects builders of amateur-built aircraft to figure out and mark CAS? > >regards jeff HDS/3300 260 hours > >do not archive > > > > ________________________________ Message 14 ____________________________________ Time: 10:01:24 AM PST US From: Stanley Challgren Subject: Zenith-List: VG's --> Zenith-List message posted by: Stanley Challgren Grant: You said: "To each his own -- but I'm seriously thinking of adding the VGs and getting more STOL performance from my Zodie, and forgetting about top speed. I also like the safety factor inherent in slower landing speeds." I don't think you will note any change in the top speed with the VG's but you will love the slow speed handling and the aerodynamic braking. Stan ________________________________ Message 15 ____________________________________ Time: 10:37:54 AM PST US From: "Phil Maxson" Subject: RE: Zenith-List: Suitable Substitute --> Zenith-List message posted by: "Phil Maxson" Yes, an AN3 bolt is an acceptable substitute for a rivet, providing there are no edge distance issues. In one of the recent Zenith Newsletters, Chris discussed this issue. It's worth re-reading since I don't have it here. Another thing I remember is that an A5 rivet may be substituted for an A4 anywhere on his planes. Since I'm building a 601, I can't comment on that particular part. Phil Maxson 601XL/Corvair Northwest New Jersey >From: "Tommy Walker" >Subject: Zenith-List: Suitable Substitute >Date: Wed, 21 Sep 2005 11:20:17 -0500 > >Listers, > >would it be acceptable to substitute an AN3-4A bolt, washer and >self-locking nut for an A5 Rivet? What I've managed to do is misalign >three holes slightly, right now the holes are drilled to 30. When I drill >out to 20, they are still going to be slightly off (about 1 mm). By >drilling out to the above size bolt, I can have a clean hole, with what I >believe to be adequate edge distance. > >The area is a longeron in the 7F3-1 rear fuselage splice. Obviously a >critical area. ________________________________ Message 16 ____________________________________ Time: 10:45:40 AM PST US From: Gary Gower Subject: Re: Zenith-List: 601HDS sport pilot eligible?? --> Zenith-List message posted by: Gary Gower Grant, I agree completly with you, in first place this is why we chose ZAC airplanes, the lower landing speed and the landing gear (good for grass or dirt strips). If I had to choose betwen low landing speed or fast cruise speed (in reason). I will go for low landing speed. I have a friend with a Long Eze, great airplane, but he has it at the airport (more expensive) and never can visit us in our aerodrome... When we go to Fly inn, He is always watching the sky, waiting for all of us, and we still flying to get there :-) Whats the hurry? Saludos Gary Gower. Grant Corriveau wrote: --> Zenith-List message posted by: Grant Corriveau I've been thinking lately about my Zodie -- and how much fun I'm having with it as a semi-STOL airplane. I can understand that others want more top end speed, but personally I don't mind flying at 105 to 110 mph (that's about 180 kmph for us Canadians! Wow - doesn't that sound even faster?) The tradeoff is that I can get airborne before the BEGINNING of the official runway section at my homefield, and I can make reasonably short landings (still needs better brakes -- i.e. the Matco brake mod?)... but at least now I can be sure of taking off from anything I can successfully land on! I currently have my 70" warp drive 3-blade, tapered prop pitched at 15.5 degrees. I get a static rpm on the CAM100 of 5000 rpm. The airplane accelerates like crazy; the nosewheel can be lifted off at 40ias, the airplane comes off in ground effect at 50 and climbs at about 800 fpm at 75mph. When I level off at 2500 ASL with full throttle, the engine revs to max cont. of 5300rpm and the ias nudges 120mph. At a more comfortable 5,000 rpm I get something between 110 and 115; and at max. range rpm (estimated) of 4800 I still get 105+ mph. With the price of fuel lately, I'm using this setting more often. To each his own -- but I'm seriously thinking of adding the VGs and getting more STOL performance from my Zodie, and forgetting about top speed. I also like the safety factor inherent in slower landing speeds. Fwiw -- Grant Corriveau C-GHTF / HDS / CAM100 > "My only recommendation would be to forget the temporary installation- they > work. The clean airplane was stalling at 48 , your VGs bring it down > to 41.5. --------------------------------- Click here to donate to the Hurricane Katrina relief effort. ________________________________ Message 17 ____________________________________ Time: 10:53:50 AM PST US From: "Rusty" <13brv3c@bellsouth.net> Subject: RE: Zenith-List: Any 601XL owners near Pensacola FL, or going to SERFI Oct 7-9? --> Zenith-List message posted by: "Rusty" <13brv3c@bellsouth.net> Thanks for the info Mark. Zephyrhills is about 7 hours away, but they might know of someone closer if someone on the list isn't close to Pensacola themselves. Cheers, Rusty Do not archive --> Zenith-List message posted by: "Zodie Rocket" Rusty , try Flight Crafters Builder Assistance Centers can provide assistance and instruction for the aviation kit builder. Flight Crafters is also a distributor for Zenith Aircraft kits. Contact us at 813-779-1156 or 813-655-6411 for more information Flight Crafters is located adjacent to the Zephyrhills Municipal Airport. Our address is 39244 South Avenue. Mark Townsend Alma, Ontario Zodiac 601XL , Osprey 2 serial # 751 President: Kitchener/Waterloo RAA Chapter www.ch601.org / www.ch701.com / www.Osprey2.com ________________________________ Message 18 ____________________________________ Time: 11:47:17 AM PST US Subject: Re: Zenith-List: N601LG First Flight! From: "Lance Gingell" --> Zenith-List message posted by: "Lance Gingell" Frank, That's an interesting point about the battery, but I don't want to permanently move my CG back otherwise I'll never be able to load up to gross. I think I'll put my first aid kit/tools etc. in a container that mounts in the rear of the baggage area - that's a long moment arm, and should take care of it. Al, I did carry power all the way down. I'm not sure how much. From my EIS logs, it looks like I'm at 1700/1600 for a bit on final, then I start to drop to idle (~1000). Not sure in the log where touchdown was though! I think I'm just above idle in the flair, but that was my intent, since it was a new engine!. My Jab is super smooth 1000rpm and over. Oh well, I guess I'll have to go and fly it again soon to find out for you ;-) Bill, All my speeds are in Knots. I have no MPH in the airplane. No confusion! I'll look out for that behavour when I finally get my full flap out. How long do your flaps take to travel from up to down? (mine: 7.5 seconds - that's how I gauge position in flight, then take a look at the flap after). Random thought: I put my flap switch in the center of the panel so it could be operated from both sides. I still wonder if I should have put it on the left side so it was easier to get at while holding the stick....but it isn't a problem, just something to conside. a trade off really. ..lance ________________________________ Message 19 ____________________________________ Time: 02:53:39 PM PST US From: "Aaron" Subject: Zenith-List: EGT temps ? --> Zenith-List message posted by: "Aaron" Does anyone have a Subaru equipped w/ EGT gauges? If so would you please tell me what your temp readings are at cruise and WOT. I'm trying to set up a duel carb system and am playing w/ jetting. If you reply, I will also need to know the distance from the head, of your sensors. Thanks Aaron ________________________________ Message 20 ____________________________________ Time: 03:15:03 PM PST US From: "William J. Naumuk" Subject: Re: Zenith-List: VG's --> Zenith-List message posted by: "William J. Naumuk" ----- Original Message ----- From: "Stanley Challgren" Subject: Zenith-List: VG's > --> Zenith-List message posted by: Stanley Challgren > All- The downside is, you have all these fragile things sticking off the top of your wings to wash and wax around, and possibly knocked off. Bill do not archive > > ________________________________ Message 21 ____________________________________ Time: 03:36:14 PM PST US From: Larry McFarland Subject: Zenith-List: Clarity Aloft in-the-ear headset --> Zenith-List message posted by: Larry McFarland Hi guys, I finally was able to fly the Clarity Aloft headset that I bought for my wife Lee. She really had issues with the former clamp type shells and couldn't stand the pressure on top of her head. The set slipped on over my glasses frames and clipped to my harness belt. The ear-plugs were screwed on to each speaker and inserted easily. The Subaru and prop noise levels were a lot lower with these than my conventional headset. Within an hours use, I felt like these were part of me. Distant noisy radio signals from other aircraft were much noisier, but clear transmissions from the tower and other good signals were much easier to hear. I know that I'm gonna have to have my own set. Never bumped into the left side of the canopy even once. I think the quality of the set as packaged for use is very high, well protected and worth the $495 spent at Aircraft Spruce. It's hard to spend that much on something weighing 2 oz or so, but after that shock, I can recommend them without any reservation. The set I bought has a volume control, good length of cords, 12-pk earplugs and the standard two plugs we all use and comes with a nice cordura case that correctly holds onto earplugs and has room for a second headset as well. See link if you're interested.......... http://www.clarityaloft.com/ No, this is not a commercial, just for your info as I experienced it. Larry McFarland - 601HDS at www.macsmachine.com ________________________________ Message 22 ____________________________________ Time: 03:55:55 PM PST US Subject: RE: Zenith-List: EGT temps ? From: "Hinde, Frank George (Corvallis)" --> Zenith-List message posted by: "Hinde, Frank George (Corvallis)" Not sure this info is going to be much use to you Aaron, but,... My sensors are on the downstream side of the bend (Stratus pipes) and I read about 1450F at cruise, 1475F at WOT. I would not USE THESE ABSOLUTE READINGS TO SET YOUR MIXTURE. You really want you mixture setting about 100F ROP (for about a 9:1 compression ratio). Trouble is unless you have a way to vary your mixture easily you really have no way to find peak EGT....it would be pretty labour intensive to do that just with jetting changes. I would use an oxygen sensor and guage from Summit racing for about $70 but you need to install the sensor in each down pipe to get an accurate measurement. Frank -----Original Message----- From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of Aaron Subject: Zenith-List: EGT temps ? --> Zenith-List message posted by: "Aaron" Does anyone have a Subaru equipped w/ EGT gauges? If so would you please tell me what your temp readings are at cruise and WOT. I'm trying to set up a duel carb system and am playing w/ jetting. If you reply, I will also need to know the distance from the head, of your sensors. Thanks Aaron ________________________________ Message 23 ____________________________________ Time: 03:56:45 PM PST US From: "Stephen R. Look" Subject: Zenith-List: Dopey question maybe.... --> Zenith-List message posted by: "Stephen R. Look" Is there any difference between green primer and yellow primer other than the color? I just ordered some spray bombs of zinc oxide in the yellow. Thanks, Steve Steve Look Monticello, IL 601XL - tail kit "Dogs have owners, Cats have staff" ________________________________ Message 24 ____________________________________ Time: 04:10:11 PM PST US From: Larry McFarland Subject: Re: Zenith-List: EGT temps ? --> Zenith-List message posted by: Larry McFarland Aaron, I've equipped my Stratus Subaru with EGT gages and an Engine Information System Model 2004 from Grand Rapids Technologies. The clamp-type sensors were inserted in holes that are 3-1/2 inches from the exhaust to cylinder flange surface. For the Stratus, this puts them at the first horizontal segment of the exhaust pipes after the first bend. Optimum EGTs are between 1350 and 1450. Cruise for the Stratus is typically 1380 at a 4300 rpm cruise. The EGTs go up to 1420-1425 when the engine is run up near 5000 rpm, but cannot sustain that for any time owing to a 250 degree F warning limit I've set for the oil temperature. (260-degrees is max) Short runs are near 130 mph, but a real sustained cruise of 120 keeps all temps safe for now in an 80-degree F ambient temperature. I'm with Grant on this, that the best pitch setting will give you all you want in take off and still sip 3.5 to 4 gallons per hour at optimum lower rpms. This is with a 70 inch, 3-blade Warp Drive set at 17-degrees. I recommend you start at 15-degrees and move it forward as you become comfortable with what you need. You can find jetting information as applies to a Stratus Subaru with 2 Bing "64" type carburators in the Stratus segment of this Matronics archives, "a jetting record"...from this past year. If you need further information, or you need a copy of the jetting record off line, just ask. Larry McFarland - 601HDS with Stratus Subaru at 72.8 hours www.macsmachine.com do not archive Aaron wrote: >--> Zenith-List message posted by: "Aaron" > >Does anyone have a Subaru equipped w/ EGT gauges? If so would you please tell me what your temp readings are at cruise and WOT. I'm trying to set up a duel carb system and am playing w/ jetting. If you reply, I will also need to know the distance from the head, of your sensors. >Thanks >Aaron > > > > ________________________________ Message 25 ____________________________________ Time: 06:01:12 PM PST US Subject: Re: Zenith-List: CAS From: Bryan Martin --> Zenith-List message posted by: Bryan Martin I don't think the FARs have any specific instructions for flight testing of amateur built aircraft but AC 90-89A has some fairly detailed procedures outlined in it. AC 90-89A is the Amateur-Built Aircraft & Ultralight Flight Testing Handbook. Chapter 4, Section 3, Paragraph 5 of this manual covers the airspeed in-flight accuracy check. This AC is available for download from the FAA and probably from the EAA website. ACs are not regulatory but do provide some very good advice. All standard category aircraft have the stall speeds and other V speed listed in the POH in CAS. These are the values that are marked on the airspeed indicator. This means that the indicated airspeed at the stall will generally be well below the bottom end of the green arc (or white arc at full flaps) on the ASI. The POH for standard category aircraft also includes a calibration table of indicated airspeeds with their corresponding calibrated airspeeds. The POH you create for your homebuilt aircraft should also contain this information. Calibrated airspeed is what the airplane "feels" as it flies through the air, it doesn't care about indicated airspeed. All the regulations in the FARs that deal with airspeed limitations assume CAS not IAS. -- Bryan Martin N61BM, CH 601 XL, Stratus Subaru. do not archive. on 9/21/05 10:04 AM, Jeff Small at zodiacjeff@msn.com wrote: > --> Zenith-List message posted by: "Jeff Small" > > My point was that the FAA doesn't care what the stall speed is in IAS, they > want the stall speed in CAS which will be greater than indicated because at > low airspeeds (high angle of attack) the pitot tube will not be pointed > directly into the airstream. If your airplane stalls at an indicated > airspeed of 45 knots, it probably won't qualify for LSA because for most > aircraft, the CAS will be several knots faster. > > Bryan, > > Can you find a part of the regs that indicates the FAA expects builders of > amateur-built aircraft to figure out and mark CAS? > > regards jeff HDS/3300 260 hours > ________________________________ Message 26 ____________________________________ Time: 11:54:34 PM PST US From: "Tommy Walker" Subject: Zenith-List: SERFI --> Zenith-List message posted by: "Tommy Walker" Listers, Listees, and Lurkers... Is anyone going to the SouthEast Regional Fly in Evergreen, AL, on October 8? I wouldn't mind meeting a few like-minded individuals if you plan to attend. My buddy and I plan to drive down and attend on Saturday, the 8th. There are several 601 and 701 builders in the Southeast. Hopefully we will get a few.... Next year, Lord willing, I plan to fly in and win a prize for the newest (perhaps only) CH701. Tommy Walker in Alabama Thou Shalt Not Archive (do not archive) ________________________________ Message 27 ____________________________________ Time: 11:54:34 PM PST US From: Stanley Challgren Subject: Re: Zenith-List: VG's --> Zenith-List message posted by: Stanley Challgren Bill: Actually that is not the case. Bugs all impact before the VG's at 10% of the chord so no washing or waxing is required. Stan On Sep 21, 2005, at 4:17 PM, William J. Naumuk wrote: > --> Zenith-List message posted by: "William J. Naumuk" > > > > ----- Original Message ----- > From: "Stanley Challgren" > To: "Zenith List" > Subject: Zenith-List: VG's > > >> --> Zenith-List message posted by: Stanley Challgren >> >> >> > All- > The downside is, you have all these fragile things sticking off > the top > of your wings to wash and wax around, and possibly knocked off. > Bill > do not archive > >> >> >> > > ________________________________ Message 28 ____________________________________ Time: 11:54:34 PM PST US From: Steve Hulland Subject: Re: Zenith-List: Source for inspection plates --> Zenith-List message posted by: Steve Hulland I'd like to put some inspection plates on my 701 too! Does anyone have any pictures of how they made and installed inspection plates? Intreiged by the idea of making them with lexon. Wonder if that has been done and how it worked? Steve Hulland 701 50% Amado, AZ On 9/19/05, ROBERT SCEPPA wrote: > > --> Zenith-List message posted by: ROBERT SCEPPA > > > You can use a fly cutter to cut them, why bother > > looking all over creation. We cut them and the > > doublers for our Glastar project. Put 8/32 nut > > nut plates with counter sunk rivets on the doublers > > can be put on with a rivet squeezer....B Sceppa > > rjscep@yahoo.com > > --- doug kandle wrote: > > > --> Zenith-List message posted by: doug kandle > > > > > > I would like to put some inspection plates in my > > 701. Does anyone > > know of a source where I can buy the doublers and > > covers for > > inspection plates. I know that they are simple > > parts, but cutting > > them by hand would be very time consuming. > > > > Doug Kandle > > CH701 > > Boise ID > > Rudder & Horiz. Stab. done > > From complete kit > > > > > > > > browse > > Subscriptions page, > > FAQ, > > > > > > > > > > > > > > ________________________________ Message 29 ____________________________________ Time: 11:54:34 PM PST US From: "Brad Cohen" Subject: Zenith-List: Tank end access cover --> Zenith-List message posted by: "Brad Cohen" Again thanks to everyone with suggestions on the fuel sender placement. Also regarding the carpeted liner for the baggage hatch, I went to a local marine seamstress and had a removable insert fabricated from a lightweight outdoor carpet. I am expecting it to be ready anyday now. For those of you who placed the fuel sender on the inboard top of the tank; did you still fabricate the tank end access cover noted in the bottom right-hand corner of 6-k-1? The only reason I see now for this access would be to get to the finger screen and for visual inspection of the fuel connections with the wings attached. Should I go ahead and add another hole to the wing for this? Brad Cohen 601XL working on the wings Do Not Archieve