---------------------------------------------------------- RV9-List Digest Archive --- Total Messages Posted Sun 03/23/03: 10 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:58 AM - Re: RV9-List Digest: 4 Msgs - 03/21/03 (Matthew Brandes) 2. 07:37 AM - Free castering nose wheel (Gozewijn Vlasblom) 3. 08:02 AM - Re: Free castering nose wheel (Larry Perryman) 4. 11:48 AM - Wing Jig Question (Ken Moak) 5. 01:59 PM - [ Bob Paulo ] : New Email List Photo Share Available! (Email List Photo Shares) 6. 04:53 PM - Re: estra hole (JOHN KERR) 7. 06:12 PM - Re: Wing Jig Question (Larry Perryman) 8. 06:28 PM - ground handling and nosewheel (Welch, Ivo) 9. 06:34 PM - Re: Wing Jig Question (DThomas773@aol.com) 10. 06:46 PM - Re: Wing Jig Question (Larry Perryman) ________________________________ Message 1 _____________________________________ Time: 05:58:19 AM PST US From: Matthew Brandes Subject: RV9-List: RE: RV9-List Digest: 4 Msgs - 03/21/03 --> RV9-List message posted by: Matthew Brandes Ed, Can you give us a short primer on propellers for those of us not quite in the know yet. (You may have an FAQ already typed up.) I was flipping through my "Bingelis on Engines" book last night and he described pitch as "... the distance in inches that a propeller section will advance in one revolution. Both blade angle and pitch are measured at the airfoil section located at 75% of the blade radius, but apparently not always in the same manner." Given this (and his example) the pitch of a blade is determined by it's diameter. How does one re-pitch a blade? Are you really just changing the angle of the blade? Matthew RV-9A .. and a long way from choosing a prop. -----Original Message----- From: RV9-List Digest Server Subject: RV9-List Digest: 4 Msgs - 03/21/03 ______ Message 2______________________ Time: 08:22:32 AM PST US From: "Ed Zercher" Subject: RE: RV9-List: RV9A Prop Pitch --> RV9-List message posted by: "Ed Zercher" Ivo and all, Since Ivo made the statement, "I think I can only order 79 or 81 from Vans," and I hear it all the time, I thought I would get the word out that you can order whichever pitch best suits your aircraft's needs. In Ivo's case, if you would like to start out sitting on the fence, you may order an 80 pitch. The 70CM series can be ordered anywhere from a 73 to an 84. Ed ________________________________ Message 2 _____________________________________ Time: 07:37:43 AM PST US From: "Gozewijn Vlasblom" Subject: RV9-List: Free castering nose wheel --> RV9-List message posted by: "Gozewijn Vlasblom" There was a report about nose wheel shimmering after landing. This is a problem that I am familiar with. I presently fly a Grumman Tiger. This plane is very comparible to an RV, particularly on the ground. The nose wheel of a tiger is limited in the movement along the vertical axis by means of friction washers. I tighten the bolt on the vertical axel until I need 20 lbs of traction on the nose wheel axel to make it move. For this I use a fisherman's scale! Very unsophisticated but very easy and effective. Hope this will elp. Goz Vlasblom 90171 ________________________________ Message 3 _____________________________________ Time: 08:02:09 AM PST US From: "Larry Perryman" Subject: Re: RV9-List: Free castering nose wheel --> RV9-List message posted by: "Larry Perryman" This is the same procedure described for the RV also. It works. Regards Larry Perryman ----- Original Message ----- From: "Gozewijn Vlasblom" Subject: RV9-List: Free castering nose wheel > --> RV9-List message posted by: "Gozewijn Vlasblom" > > There was a report about nose wheel shimmering after landing. > This is a problem that I am familiar with. > I presently fly a Grumman Tiger. This plane is very comparible to an RV, > particularly on the ground. > The nose wheel of a tiger is limited in the movement along the vertical axis > by means of friction washers. I tighten the bolt on the vertical axel until > I need 20 lbs of traction on the nose wheel axel to make it move. For this I > use a fisherman's scale! Very unsophisticated but very easy and effective. > Hope this will elp. > Goz Vlasblom 90171 > > ________________________________ Message 4 _____________________________________ Time: 11:48:50 AM PST US From: Ken Moak Subject: RV9-List: Wing Jig Question --> RV9-List message posted by: Ken Moak Thanks to everyone that helped me with the empennage. A Technical Counselor (Jim) came out last week and the first milestone has happened. No rework, so I closed things up. Thanks to all the advise, either direct or in the archives. Now I'm starting the Wing and have a couple of questions. 1. About how heavy is a wing? 2. About how far off the uprights do you place the spar? I am making it movable much like Todd Houg shows on his WEB site. I have a cross member running between my uprights and need to determine how much space I need to get between the wing and the cross member. 3. About how high off the floor did you put the spar? I know this would depend on the person, but a general idea would be nice 4. I would like to hang both wings at once, any comments? Any advice would be appreciated. Ken 90608 Building the wing jig http://platinum.yahoo.com ________________________________ Message 5 _____________________________________ Time: 01:59:59 PM PST US Subject: RV9-List: [ Bob Paulo ] : New Email List Photo Share Available! From: Email List Photo Shares --> RV9-List message posted by: Email List Photo Shares A new Email List Photo Share is available: Poster: Bob Paulo Subject: RV Project For Sale http://www.matronics.com/photoshare/Bobpaulo@aol.com.03.23.2003/index.html o Main Photo Share Index http://www.matronics.com/photoshare o Submitting a Photo Share If you wish to submit a Photo Share of your own, please include the following information along with your email message and files: 1) Email List or Lists that they are related to: 2) Your Full Name: 3) Your Email Address: 4) One line Subject description: 5) Multi-line, multi-paragraph description of topic: 6) One-line Description of each photo or file: Email the information above and your files and photos to: pictures@matronics.com ________________________________ Message 6 _____________________________________ Time: 04:53:15 PM PST US From: JOHN KERR Subject: Re: RV9-List: estra hole --> RV9-List message posted by: JOHN KERR thanks, pardon the senior moment..... ----- Original Message ----- From: John Oliveira Subject: Re: RV9-List: estra hole > --> RV9-List message posted by: "John Oliveira" > > The hole for the tie downs > > John Oliveira - 90054 > Fuselage arrives this week - Wings and Tail done > ----- Original Message ----- > From: "JOHN KERR" > To: > Subject: RV9-List: estra hole > > > > --> RV9-List message posted by: JOHN KERR > > > > > > there is an extra hole in the bottom of the leaing edge skin, > about > > where the pitot will go but it misses the spar flange. what is > its > > purpost? > > > > > > > > > > > > > > > > > _- > ======================================================================_- = - The RV9-List Email Forum - > _- > ======================================================================_- = !! NEWish !! > _- > ======================================================================_- = List Related Information > _- > ====================================================================== > > > > ________________________________ Message 7 _____________________________________ Time: 06:12:40 PM PST US From: "Larry Perryman" Subject: Re: RV9-List: Wing Jig Question --> RV9-List message posted by: "Larry Perryman" Ken, For my RV-9A: 1. Two people can easily handle a wing. They are a bit bulky for one. Weight maybe 100 lbs. 2. I put mine about the middle of my chest. Measure one rib. That is about how far it will hang down. 3. My bottom spar was about 20 inches off the floor. Just enough to get a screw jack on a milk crate under the spar. 4. No. You will need to get to both sides of the wing so do them one at a time. The wing skins are one place where two people is almost a necessity. I went to the local aviation store (Home Depot) and got some 1.5 x 1.5 aluminum angle and made the cross braces . I then got some felt strips with adhesive backing and put on top to cushion the spar. A hardware bolt through one of the end holes in the spar helps hold it in place while riveting. You may have to get creative on the wing tip end since one rib goes right at the end. Once you get one skin on, you can take the wing and put it on a table to do the other skins. It helps being able to work at one height. Hope my ramblings help. Keep building. It is worth it in the end. Regards Larry Perryman N194DL ----- Original Message ----- From: "Ken Moak" Subject: RV9-List: Wing Jig Question > --> RV9-List message posted by: Ken Moak > > Thanks to everyone that helped me with the empennage. > A Technical Counselor (Jim) came out last week and the > first milestone has happened. No rework, so I closed > things up. Thanks to all the advise, either direct or > in the archives. > > Now I'm starting the Wing and have a couple of > questions. > > 1. About how heavy is a wing? > > 2. About how far off the uprights do you place the > spar? I am making it movable much like Todd Houg > shows on his WEB site. I have a cross member running > between my uprights and need to determine how much > space I need to get between the wing and the cross > member. > > 3. About how high off the floor did you put the spar? > I know this would depend on the person, but a general > idea would be nice > > 4. I would like to hang both wings at once, any > comments? > > Any advice would be appreciated. > > Ken > 90608 > Building the wing jig > > http://platinum.yahoo.com > > ________________________________ Message 8 _____________________________________ Time: 06:28:35 PM PST US From: "Welch, Ivo" Subject: RV9-List: ground handling and nosewheel --> RV9-List message posted by: "Welch, Ivo" Thanks, Leland. I will definitely check into panel design and nosewheel nut breakout force. I think I will try the XCOM rather than the ICOM, though. They are not as strong a radio as the SL40, but the weaker radios will suffice for my purpose. (Emergency, low power.) The SL40 is still quite a bit bigger. I will check with David on avionics purchases, too. My big problem is not finding someone to sell me avionics cheap, but someone to install a panel/avionics cheap *and* good. I have one recommendation on a shop already, but I would love another one. I am not the builder, so I am not even allowed to install if I wanted it. I need a good licensed avionics mechanic. Know someone? But you have piqued even more curiosity: is there a specific tradeoff between high-speed ground handling and turning radius? that is, can I do something to improve left-right stability on landing and takeoff, if I rarely need to turn in small circles? regards, /iaw ________________________________ Message 9 _____________________________________ Time: 06:34:26 PM PST US From: DThomas773@aol.com Subject: Re: RV9-List: Wing Jig Question --> RV9-List message posted by: DThomas773@aol.com Hi, I agree with everything Larry says except the weight of the wing. 100 pounds? I think my completed wing with control surfaces, wing tips and all lighting would be less than 60 pounds. Dennis Thomas tail dragger tip up fuselage ________________________________ Message 10 ____________________________________ Time: 06:46:21 PM PST US From: "Larry Perryman" Subject: Re: RV9-List: Wing Jig Question --> RV9-List message posted by: "Larry Perryman" Dennis, You could be right. It has been almost a year since I built my wings and the memory falters after a while. My point was that it is not the weight as much as the bulk of the wings that make them a two person job to move around. Regards Larry Perryman ----- Original Message ----- From: Subject: Re: RV9-List: Wing Jig Question > --> RV9-List message posted by: DThomas773@aol.com > > Hi, > I agree with everything Larry says except the weight of the wing. 100 > pounds? I think my completed wing with control surfaces, wing tips and all > lighting would be less than 60 pounds. > > Dennis Thomas > tail dragger tip up > fuselage > >