---------------------------------------------------------- Zenith-List Digest Archive --- Total Messages Posted Sun 04/27/03: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:50 AM - Re: Which Rivnuts Should I Use? (Edward Kramer) 2. 04:06 AM - Re: 701 cowl question (JNBOLDING1) 3. 06:48 AM - 701 wing tank wiring (LARRY BOHANNON) 4. 07:37 AM - Re: 701 cowl question (mike sinclair) 5. 10:50 AM - Re: 701 wing tank wiring (Ed Kramer) 6. 02:37 PM - EGT and CHT Range (STEFREE@aol.com) 7. 07:47 PM - EA-81 engine available (Scott Harding) ________________________________ Message 1 _____________________________________ Time: 01:50:35 AM PST US From: "Edward Kramer" Subject: Re: Zenith-List: Which Rivnuts Should I Use? --> Zenith-List message posted by: "Edward Kramer" Phil, My choice of rivnuts would be 8-32. Reason being 6-32's are not considered structural, and if the hole becomes elongated you can always go to 10-32. I like to start out as small as possible so you always have the option to go larger if necessary. I think keyless are more common. Ed Kramer West Seneca, NY CH 701 edair701@adelphia.net _____ > --> Zenith-List message posted by: "Phil Maxson" > > > I am preparing to follow the advice of several listers and install the skin > over the instruments with Rivnuts, the question is: which ones? I know I > have the option for 6-32, 8-32, and 10-32, also keyed or keyless. > > Which size are people using? > > Is a key really necessary? > > Thanks, > Phil Maxson > 601XL, N601MX > > ________________________________ Message 2 _____________________________________ Time: 04:06:26 AM PST US From: "JNBOLDING1" Subject: Re: Zenith-List: 701 cowl question --> Zenith-List message posted by: "JNBOLDING1" ---------- Original Message ---------------------------------- From: Benford2@aol.com >> Does anyone happen to know off-hand what type of glass and how may plies >> are typical for a layup on a 701 cowl? I measured a stock Zenith cowl >> and got a thickness of around .075 including fibreglass and gelcoat. It >> looks to me like it may be the cheaper E glass. I am thinking about >> using a 5 ply lay-up of the stronger S glass. Currently building a plug >> around the engine (sealed in plastic and duct tape & mounted on the >> firewall) so that I can pull a mold. Already looking like it should be a >> lot cleaner than the boxy factory produced cowl (& the workmanship will >> most definitely be better). I did check with SkyShop and their new cowl >> design will not be out until around Sept.. Any thoughts? Mike The Coot Amphibian of many yrs ago had 5 layers of 181 for the HULL so 5 for a cowling is surly overkill 3 will do nicely where there is some shape (curve) and you can add some strips of 1/4 or 3/8 foam where things are flat for stiffeners .LOW&SLOW John Bolding ________________________________ Message 3 _____________________________________ Time: 06:48:35 AM PST US From: "LARRY BOHANNON" Subject: Zenith-List: 701 wing tank wiring --> Zenith-List message posted by: "LARRY BOHANNON" I'm installing my wing tank on a 701 and I'm not real sure about wiring and grounding and ohms, etc. I tested the ohms on the sender and it was 13.9 on empty and 180.1 on full. Suppose to be 10 empty and 180 full. Is this close enough? If not, how would I correct it? Also I'm not sure about the proper wiring.Would this be correct? A postive wire from center post on sender back to fuel gauge and a negative wire from side post on sender back to fuel gauge.Then just a ground wire from tab welded on side of tank to airframe ground. Is this correct? I wrote ZAC and got an answer back but it wasn't very clear and he also wrote incorrectly that the ohms should be 10 for full and 180 for empty so that wasn't much help. Larry Bohannon 701 Winder, Georgia tail finished,working on right wing ________________________________ Message 4 _____________________________________ Time: 07:37:02 AM PST US From: mike sinclair Subject: Re: Zenith-List: 701 cowl question --> Zenith-List message posted by: mike sinclair > Thanks for the quick input guys. Should have thought about the foam stiffeners > as I used a similar technique building ultralight fairings about 20 years ago. > Looks like I do need to dig in the piles of magazines for reference though. > Just hate to take a break from actual building when the weather is so nice. > Thanks again and I'm back to work on the cowling plug. Mike Sinclair Do Not Archive > ----- Original Message ----- > From: "mike sinclair" > To: > Sent: Saturday, April 26, 2003 7:41 AM > Subject: Zenith-List: 701 cowl question > > > --> Zenith-List message posted by: mike sinclair > > > > Does anyone happen to know off-hand what type of glass and how may plies > > are typical for a layup on a 701 cowl? I measured a stock Zenith cowl > > and got a thickness of around .075 including fibreglass and gelcoat. It > > looks to me like it may be the cheaper E glass. I am thinking about > > using a 5 ply lay-up of the stronger S glass. Currently building a plug > > around the engine (sealed in plastic and duct tape & mounted on the > > firewall) so that I can pull a mold. Already looking like it should be a > > lot cleaner than the boxy factory produced cowl (& the workmanship will > > most definitely be better). I did check with SkyShop and their new cowl > > design will not be out until around Sept.. Any thoughts? > > > > > > > > > > > > > > ________________________________ Message 5 _____________________________________ Time: 10:50:01 AM PST US From: "Ed Kramer" Subject: Re: Zenith-List: 701 wing tank wiring --> Zenith-List message posted by: "Ed Kramer" > --> Zenith-List message posted by: "LARRY BOHANNON" > > I'm installing my wing tank on a 701 and I'm not real sure about wiring and grounding and ohms, etc. I tested the ohms on the sender and it was 13.9 on empty and 180.1 on full. Suppose to be 10 empty and 180 full. Is this close enough? If not, how would I correct it? > Also I'm not sure about the proper wiring.Would this be correct? A positive wire from center post on sender back to fuel gauge and a negative wire from side post on sender back to fuel gauge.Then just a ground wire from tab welded on side of tank to airframe ground. Is this correct? I wrote ZAC and got an answer back but it wasn't very clear and he also wrote incorrectly that the ohms should be 10 for full and 180 for empty so that wasn't much help. > > Larry Bohannon > 701 > Winder, Georgia > tail finished,working on right wing Larry, I don't think that little bit of difference from 10 to 13.9 ohms will make a difference, fuel gauges are only so accurate. What I've found when testing the ohms for full & empty is the top of the tank oil cans and can change the reading drastically. The top skin on my tank can easily be pushed downward & upward about an inch changing the ohm readings. The center post wire on the sender connects to the "S" on the fuel gauge, from the ground post on the sender to the airframe, then ground the gauge to the airframe. The plus side of the gauge connects to a power source. Ed Kramer West Seneca, NY CH 701: Completed rudder, left wing, working on right wing. edair701@adelphia.net ________________________________ Message 6 _____________________________________ Time: 02:37:28 PM PST US From: STEFREE@aol.com Subject: Zenith-List: EGT and CHT Range --> Zenith-List message posted by: STEFREE@aol.com Hi list, I am looking to set up the warning parameters on my engine instrument monitor and it requests settings for max temp on EGT and CHT. My engine manufacturer (stratus) does not list these numbers in my manual. Nac any provide temps for what I should set my EIS to for the warning module? Thanks in advance for your help. Steve Freeman ________________________________ Message 7 _____________________________________ Time: 07:47:42 PM PST US From: Scott Harding Subject: Zenith-List: EA-81 engine available --> Zenith-List message posted by: Scott Harding I have a Subaru EA-81 engine that I pulled from a junkyard and was going to do a conversion on it. Now my plans have changed and I will no longer need the EA-81. If any one in the Houston area is interested, contact me off the list. Anyone got the Air-Soob site address so I can post this message there? Thanks, Scott Harding sharding@wt.net 701 Plans and Rudder Do Not Archive