Pietenpol-List Digest Archive

Sat 04/29/06


Total Messages Posted: 6



Today's Message Index:
----------------------
 
     1. 05:03 AM - covering of root rib (Douwe Blumberg)
     2. 12:42 PM - Ford Model B with chevy Head (Steve Glass)
     3. 02:24 PM - Re: covering of root rib (gcardinal)
     4. 02:58 PM - Re: Re: what holds up a project (KMHeide)
     5. 05:31 PM - Re: Gas Tank Location (Rcaprd@aol.com)
     6. 06:52 PM - Re: more prop trouble? (Catdesign)
 
 
 


Message 1


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    Time: 05:03:09 AM PST US
    From: "Douwe Blumberg" <douweblumberg@earthlink.net>
    Subject: covering of root rib
    Hi guys, How did you guys finish your wing root rib with covering? Did you bring the covering across it so it is solid with controls coming through or did you trim the covering and glue it around the edge and inside of the rib? I'm leaning towards the latter as it allows more access and inspection. probably doesn't matter as the gap is covered anyways. Thanks Douwe


    Message 2


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    Time: 12:42:37 PM PST US
    From: "Steve Glass" <redsglass@hotmail.com>
    Subject: Ford Model B with chevy Head
    --> Pietenpol-List message posted by: "Steve Glass" <redsglass@hotmail.com> Hi Everybody I was down at the local hardware store in Ontario Oregon and the local antique motor club had a display of old motors running. One was a ford model B with a 41 chevy head mounted via an aluminium adapter plate about 1" thick. The man claimed about 100 HP with twin stomberg 93 carbs and about 7:1 compression ratio. There was also an adapter to convert the chevy head back to the "late" model 1934 V8 waterpump. He was going to put it a car. I took some pictures of each side and could post them if anybody would like to see them. You just never know what you will see each day. Best regards Steve G


    Message 3


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    Time: 02:24:37 PM PST US
    From: "gcardinal" <gcardinal@mn.rr.com>
    Subject: Re: covering of root rib
    Hi Douwe, The covering on the end ribs of NX18235 was trimmed for ease of inspection. I can't think of any good reason to cover the ends. Greg Cardinal ----- Original Message ----- From: Douwe Blumberg To: pietenpolgroup Sent: Saturday, April 29, 2006 7:01 AM Subject: Pietenpol-List: covering of root rib Hi guys, How did you guys finish your wing root rib with covering? Did you bring the covering across it so it is solid with controls coming through or did you trim the covering and glue it around the edge and inside of the rib? I'm leaning towards the latter as it allows more access and inspection. probably doesn't matter as the gap is covered anyways. Thanks Douwe


    Message 4


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    Time: 02:58:23 PM PST US
    From: KMHeide <kmheidecpo@yahoo.com>
    Subject: Re: what holds up a project
    Harvey, In North Dakota we have been through the high waters and it has not been easy.....so in passing hell, check things out and get back to me. Might want that better than water...... Ken harvey.rule@bell.ca wrote: --> Pietenpol-List message posted by: I am so close to finishing ;it's driving me crazy.Everytime I turn around these two AME's I got lookin after me find something else wrong and I have to change something or fix something.I know they are lookin out for me and it's all for the best but like I've said before,I'm no builder and it's drivin me nuts!Soon to fly come hell or high water! Do not archive -----Original Message----- From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Glenn Thomas Sent: April 28, 2006 3:00 PM Subject: Pietenpol-List: Re: what holds up a project --> Pietenpol-List message posted by: "Glenn Thomas" I hear that! I basically work on the project on weekends. To justify a solid day of the weekend on the Piet, I feel an obligation to be a husband the other day. (1 day a week!!!) Son is now in college so no hockey/lacrosse to cause further time away from project. I have learned to tuck Piet time into free hour blocks that are not consumed by other things. Early mornings (no power tools) and late evenings are good quality Piet time. You will see shop lights on well into the morning hours if I'm on a roll. Time mgmt is a bigger part of this than I previously thought. -------- Glenn Thomas N????? http://www.flyingwood.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=31427#31427 ---------------------------------


    Message 5


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    Time: 05:31:20 PM PST US
    From: Rcaprd@aol.com
    Subject: Re: Gas Tank Location
    In a message dated 4/28/2006 11:59:50 AM Central Standard Time, jegan@kcc.co= m writes: Would any one like to comment on how low the bottom of the fuel tank should be mounted (or their successful installation) in the nose area of a Piet? I= would like to start to mock up the fuel tank to be located in the nose, supplying fuel to an updraft carb, mounted under a Corvair engine. I will c= omplete a flow test as discussed in previous valued comments found in the archive. Thanks all, John Fuel related problems are the most common reason that airplane engines stop running. There are a LOT of factors to consider when designing a fuel system. Some of which are: 1) The outlet should be the lowest point in the tank, in order that ALL water will find it's way out when the plane is in the static laden position (sitting tail on the ground). 2) There should be a removable finger screen in the outlet, to catch all th= e garbage that seems to find it's way into the tank. 3) The mounting system must be able to sustain at least 3 times the weight of the total fuel capacity. 4) Quantity indicator must be reliable, and be able to monitor it in flight= - Not Electric..too unreliable. A fuel cap with a cork & wire indicator is simple and easy to make, and should also include a 90=BA Ram tube (1/4" tubi= ng) facing into the prop wash - to maintain a little bit of pressure in the fuel= tank. 5) Fuel shut off valve on Certified planes must be behind the firewall, but= I put mine on the front of the firewall before I realized that fact. My reasoning is that there is No portion of my fuel system inside the cockpit a= rea - no leaks can find their way into the cockpit. 6) 3/8" fuel lines to maintain enough quantity flow. 7) Gascolator Must be in the lowest point in the fuel system (even lower than the carb), to collect water. However, it Must be above the lower edge=20= of the firewall, in case you wipe out the landing gear, it will Not rupture the= fuel lines. For my cowling tank, the bottom is sloped forward, so when the plane is in the static laden position (tail on the ground) any drops of water will dr= ain out of the tank, into the gascolator. No fuel lines or fittings are in the front cockpit. I installed a fitting on the top, at about 10 O'Clock positi= on (viewed from the cockpit), to fill it from the wing. My quantity indicator=20= is a cork & wire, similar to a J3. I made my fiberglass cowl tank with the flanges on the sides of the tank= , to rest on the top of the longerons. I put a lot of time and thought into the mold for the tank. I made the inlet on the top left side, (at about 10 O'clock pilot's view), and made a fiberglass blister stand outboard of the cowling, to prevent possibility of leaks entering the cowling. The outlet i= s also outside of the cowling shelf, and points forward. There is an EL fitting, t= hen the 3/8" ball valve that is cable operated. The bottom of the tank slopes forward, while in the tail down attitude (as it sits in the hanger), so any=20= water in the tank makes it's way all the way out of the tank, and into the gascolator (a very important design criteria). I used the aluminum 'weldabl= e fittings' that AS&S sells, glassed in, at the inlet and outlet. On the outl= et side, I modified a finger screen, so it threads into the 'weldable fitting', by taping the o.d. threads, and then the 90=BA EL threads into the 'weldable f= itting' on top of the finger screen. As a result, I was able to squeeze a lot of fu= el in the cowling tank. It holds 10.7 gals. I didn't know how much fuel it would hold, till I did a leak test, by setting it up at the gas pump, at the= angle the tank sits in the plane, and put one gallon in at a time, then dipping a stick into the fuel, to mark off each additional gallon. That's how I made=20= my 'Fuel Quantity Indicator'. I topped it all the way off, then put the full tank in my trunk, brought it home and left it sit for 3 or 4 days to check f= or leaks - No Leaks !! My wing tank holds 9.8 gals. so my total fuel onboard=20= can be 20 gal. That's a lot of fuel. I don't think I could sit there long enough to burn that much fuel at a time, but on the way back from Oshkosh, I= did do one 4 hr leg, and two 3 1/2 hr legs, and still had plenty of reserve. But you know what they say - "The only time you have too much fuel onboard, is w= hen you're on fire !!" It was quite a chore to design and build this tank, but=20= it all works very well, and I'm pleased with how it turned out. I have lots of= pictures at : http://nx770cg.com/FuelSystem.html Chuck G. NX770CG


    Message 6


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    Time: 06:52:13 PM PST US
    From: "Catdesign" <catdesign@intergate.com>
    Subject: Re: more prop trouble?
    speaking of odd propeller pictures, check out this one from Chuck's website. Chris Tracy Sacramento, Ca Do not archive ----- Original Message ----- From: Dick Navratil Sent: Friday, April 28, 2006 7:01 PM Subject: Pietenpol-List: more prop trouble? My friend just forwarded an even weirder pic. Dick N.




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