---------------------------------------------------------- Kitfox-List Digest Archive --- Total Messages Posted Tue 11/15/05: 24 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:49 AM - Re: looking for counter balance weights (Eric Osmond) 2. 05:41 AM - Re: Rudder hinge pin (Lmar) 3. 07:00 AM - flex in frame............ (Sid Hausding) 4. 07:04 AM - Instructions needed for Radiator Scoop (Harris, Robert) 5. 07:16 AM - Re: Fw: Oil Line Fitting (Bob Robertson) 6. 07:20 AM - Re: Re: Rudder hinge pin (David Savener) 7. 08:17 AM - Auxiliary 13 Gal. Fuel tanks (Donald STEVENSON) 8. 08:41 AM - Re: looking for counter balance weights (Guy Buchanan) 9. 08:45 AM - Auxiliary 13 Gal Fuel Tanks (Donald STEVENSON) 10. 12:00 PM - Re: Instructions needed for Radiator Scoop (Lowell Fitt) 11. 12:44 PM - Skystar Kitfox Service Bulletins Available (kitfoxjunky) 12. 01:11 PM - Re: Groundlooped Kitfox needing Parts (Tinne maha) 13. 01:17 PM - Is a picture of your plane on the Kitfox history? (Harris, Robert) 14. 03:05 PM - Mass Balance weights. (Rex & Jan Shaw) 15. 04:20 PM - Re: Is a picture of your plane on the Kitfox history? (Lowell Fitt) 16. 04:55 PM - Re: Auxiliary 13 Gal Fuel Tanks (Don Smythe) 17. 06:25 PM - Re: Auxiliary 13 Gal Fuel Tanks (Donald STEVENSON) 18. 06:40 PM - Re: Fw: Oil Line Fitting (Kirk Martenson) 19. 07:38 PM - Re: Kitfox front spar splice (AMuller589@aol.com) 20. 08:30 PM - Re: Re: Kitfox front spar splice (kurt schrader) 21. 08:39 PM - Re: Mass Balance weights. (kurt schrader) 22. 08:42 PM - Re: Re: Kitfox front spar splice (AMuller589@aol.com) 23. 08:46 PM - Re: Gary Walsh NSI prop (kurt schrader) 24. 09:05 PM - Re: looking for counter balance weights (kurt schrader) ________________________________ Message 1 _____________________________________ Time: 12:49:21 AM PST US From: Eric Osmond Subject: Re: Kitfox-List: looking for counter balance weights --> Kitfox-List message posted by: Eric Osmond Thanks for all the help. I think I like your idea John of just using the old ones. This evening I looked at the old flaperons and the new flaperons with that in mind. They're the same length and width. The hinges are in the same position. They have slightly different shapes. So I don't see why the old ones wouldn't work. I'll just make sure I refer to the old manual for mounting location as they are different. I'm not sure why, but it looks like they changed the design from one larger weight on each flaperon for two smaller ones. Grant and Ronald, thanks for your offers of weighing your weights and forwarding some measurements. If either of you get the oportunity, I wouldn't mind having that info written down somewhere it case I learn more and decide that I have to fabricate a facsimile of the new design. Thanks Eric --- Lowell Fitt wrote: > --> Kitfox-List message posted by: "Lowell Fitt" > > > Guy, > > I don't understand what you said in your post. I > have the two balance > weights and have had no problems with them over 750 > hours. What do you mean > by not balancing as they should. > > Lowell > > ----- Original Message ----- > From: "Guy Buchanan" > To: > Subject: Re: Kitfox-List: looking for counter > balance weights > > > > --> Kitfox-List message posted by: Guy Buchanan > > > > > At 10:29 AM 11/14/2005, you wrote: > >>Any one have any thoughts? > > > > Only that my K-IV 1200 circa '93 uses 2 balance > weights, one on each > > flaperon outboard end. My problem is that my > weights don't balance the > > flaperon, as they should. > > > > > > Guy Buchanan > > K-IV 1200 / 582 / 99.9% done, thanks mostly to Bob > Ducar. > > > > Do not archive > > > > > > > > > > Click on > about > provided > www.buildersbooks.com, > Admin. > _-> > browse > Subscriptions page, > FAQ, > > > > > > __________________________________ ________________________________ Message 2 _____________________________________ Time: 05:41:27 AM PST US From: Lmar Subject: Kitfox-List: Re: Rudder hinge pin --> Kitfox-List message posted by: Lmar Gary, I don't think that play would have been designed into it, as it will cause more problems. Have you tried to change rudder pins? Perhaps that may be enough to tighten things up. The Avid uses plastic bushings on its control surfaces. It's just plastic rod then drilled and reamed to fit the pin. (once it is in the rudder and/or verticle fin) Its tight to get the pin in, but it is free to swivel the rudder. Hope this helps. By the way, can anyone please tell me that when they pick up their tail, the fabric "gives" a bit from a point about a foot forward of the verticle post along the bottom longeron to the verticle post. I'm afraid that it may indicate a cracked longeron. It looks fine with the weight on it, but lift it up.....! Larry Subject: Rudder hinge play KF IV From: kitfoxjunky (kitfoxjunky@decisionlabs.com) Date: Mon Nov 14 - 10:06 AM --> Kitfox-List message posted by: kitfoxjunky I recently noticed that the middle hinge on the rudder of my KFIV has a fair bit of play in it. If you grab the top of the rudder, and pull it side to side, you can see and hear the movement from the middle hinge. I was going to fix this up with a bushing..but then I got to thinking that it might be there by design, so if the rudder flexes, the middle hinge does not bind. That is a long shot..but I thought I would ask the list. --------------------------------- ________________________________ Message 3 _____________________________________ Time: 07:00:11 AM PST US From: Sid Hausding Subject: Kitfox-List: flex in frame............ --> Kitfox-List message posted by: Sid Hausding Looks like the flex would/does indicate a break or crack there.........sorry. But if it flexs now under just the weight of a gentle lifting pressure, guess what might happen when you drop in with a 'bad' or untimed landing? Better pull some cloth..........IMO Sid ---------------------------- Lmar wrote: --> Kitfox-List message posted by: Lmar Gary, I don't think that play would have been designed into it, as it will cause more problems. Have you tried to change rudder pins? Perhaps that may be enough to tighten things up. The Avid uses plastic bushings on its control surfaces. It's just plastic rod then drilled and reamed to fit the pin. (once it is in the rudder and/or verticle fin) Its tight to get the pin in, but it is free to swivel the rudder. Hope this helps. By the way, can anyone please tell me that when they pick up their tail, the fabric "gives" a bit from a point about a foot forward of the verticle post along the bottom longeron to the verticle post. I'm afraid that it may indicate a cracked longeron. It looks fine with the weight on it, but lift it up.....! Larry Subject: Rudder hinge play KF IV From: kitfoxjunky (kitfoxjunky@decisionlabs.com) Date: Mon Nov 14 - 10:06 AM --> Kitfox-List message posted by: kitfoxjunky I recently noticed that the middle hinge on the rudder of my KFIV has a fair bit of play in it. If you grab the top of the rudder, and pull it side to side, you can see and hear the movement from the middle hinge. I was going to fix this up with a bushing..but then I got to thinking that it might be there by design, so if the rudder flexes, the middle hinge does not bind. That is a long shot..but I thought I would ask the list. --------------------------------- --------------------------------- ________________________________ Message 4 _____________________________________ Time: 07:04:30 AM PST US From: "Harris, Robert" Subject: Kitfox-List: Instructions needed for Radiator Scoop --> Kitfox-List message posted by: "Harris, Robert" Does anyone on the list have installation instructions for installing a radiator scoop? Are there mounting instructions for this in the Speedster manual? Robert ________________________________ Message 5 _____________________________________ Time: 07:16:40 AM PST US From: "Bob Robertson" Subject: Re: Kitfox-List: FWD: Oil Line Fitting --> Kitfox-List message posted by: "Bob Robertson" Jimmie, Give me a call on the toll free number listed below. If we can't help you we can at least point you in the correct direction. regards Bob Robertson Light Engine Services Ltd. Rotax Service Center Aero Control Enterprises, Inc. St. Albert, Ab. T8N 1M8 Ph: (Tech Support) 1-780-418-4164 Ph: (Order Line) 1-866-418-4164 (TOLL FREE) www.rtx-av-engines.ca www.aerocontrols.net ----- Original Message ----- From: " jablackwell" Subject: Kitfox-List: FWD: Oil Line Fitting > --> Kitfox-List message posted by: " jablackwell" > > Have not been able to get Lockwood to respond. Would appreciate > any ideas from the list as to where I might get such a part as > described below. > > Thanks > > Jimmie > > > ---------- Original Message ---------------------------------- > From: " jablackwell" > Date: Tue, 8 Nov 2005 14:37:02 -0600 > > Hello > > I have an older Rotax 912 UL (serial #4005270) and need a fitting > to the oil pump as follows: > > 1. 12MM to go into the oil pump and 1/2" NPT on the other side of > the fitting. > > OR > > 2. 90 degree fitting with 12 MM to go into the oil pump and a hose > barb fitting on the other side of the 90 degree fitting. > > Hope you can help me. > > Thank you. > > Jimmie > Phone: 512 695-6627 > > Sent via the EV1 webmail system at mail.ev1.net > > > Sent via the EV1 webmail system at mail.ev1.net > > ________________________________ Message 6 _____________________________________ Time: 07:20:32 AM PST US From: "David Savener" Subject: Re: Kitfox-List: Re: Rudder hinge pin --> Kitfox-List message posted by: "David Savener" My model II is made with the plastic inserts to act as rudder bearings. Dave S Do not archive ----- Original Message ----- From: Lmar To: Kitfox Sent: Tuesday, November 15, 2005 7:40 AM Subject: Kitfox-List: Re: Rudder hinge pin --> Kitfox-List message posted by: Lmar > Gary, I don't think that play would have been designed into it, as it will cause more problems. Have you tried to change rudder pins? Perhaps that may be enough to tighten things up. The Avid uses plastic bushings on its control surfaces. It's just plastic rod then drilled and reamed to fit the pin. (once it is in the rudder and/or verticle fin) Its tight to get the pin in, but it is free to swivel the rudder. Hope this helps. By the way, can anyone please tell me that when they pick up their tail, the fabric "gives" a bit from a point about a foot forward of the verticle post along the bottom longeron to the verticle post. I'm afraid that it may indicate a cracked longeron. It looks fine with the weight on it, but lift it up.....! Larry Subject: Rudder hinge play KF IV From: kitfoxjunky (kitfoxjunky@decisionlabs.com) Date: Mon Nov 14 - 10:06 AM --> Kitfox-List message posted by: kitfoxjunky > I recently noticed that the middle hinge on the rudder of my KFIV has a fair bit of play in it. If you grab the top of the rudder, and pull it side to side, you can see and hear the movement from the middle hinge. I was going to fix this up with a bushing..but then I got to thinking that it might be there by design, so if the rudder flexes, the middle hinge does not bind. That is a long shot..but I thought I would ask the list. --------------------------------- ________________________________ Message 7 _____________________________________ Time: 08:17:53 AM PST US From: Donald STEVENSON Subject: Kitfox-List: Auxiliary 13 Gal. Fuel tanks --> Kitfox-List message posted by: Donald STEVENSON Hi everyone, I,m new to the list and hope someone can help with a few questions re Aux Fuel Tanks. ________________________________ Message 8 _____________________________________ Time: 08:41:12 AM PST US From: Guy Buchanan Subject: Re: Kitfox-List: looking for counter balance weights --> Kitfox-List message posted by: Guy Buchanan At 09:11 PM 11/14/2005, you wrote: >What do you mean >by not balancing as they should. The balance weight(s) should cause the flaperon to balance horizontally on its hinge. Any less diminishes the aileron's resistance to flutter. Guy Buchanan K-IV 1200 / 582 / 99.9% done, thanks mostly to Bob Ducar. Do not archive ________________________________ Message 9 _____________________________________ Time: 08:45:58 AM PST US From: Donald STEVENSON Subject: Kitfox-List: Auxiliary 13 Gal Fuel Tanks --> Kitfox-List message posted by: Donald STEVENSON Hi everyone, I"m new to the Kitfox list and hope someone can help re a few questions about the Aux Fuel Tanks supplied with the M4/1200 Speedster kit i am building. This kit was manufactured in July 1992, and I purchased it from the original buyer in about 25% completed state. I will soon be at a point ready to cover, but have some concerns about the fiberglass 13 gal. fuel tanks. 1, The left tank has the fitting for the Tygon Tube Sightgauge, but the right tank has not been drilled for these fittings. The fittings were supplied with the tank kit but no holes in the tank. My question is has anyone drilled and installed fittings in to an existing tank, and if so did you have any problems? 2, My 2nd question is regarding a WARNING in the construction manual as follows: DO NOT USE GASOLINE THAT HAS METHANOL OF ALCOHOL ADDITIVES (GASOHOL) IN THIS FIBERGLASS TANK. IF THESE FUELS ARE USED, IT WILL CAUSE A BREAKDOWN OF THE RESIN USED IN ITS MANUFACTURE. THESE FUELS ARE STRICTLY PROHIBITED. Wow, most auto gas today has the above additives! any comments guys? That enough questions for now, thanks for any help you can give me, Don ________________________________ Message 10 ____________________________________ Time: 12:00:06 PM PST US From: "Lowell Fitt" Subject: Re: Kitfox-List: Instructions needed for Radiator Scoop --> Kitfox-List message posted by: "Lowell Fitt" Robert, I mounted mine without instructions as I bought it from a builder. It is mounted like the radiator, through the floorboards with standoffs to allow for positioning. I used four #10 flat head bolts with the large AN-60 washers over the floorboard. The scoop might have to be trimmed to accommodate the plumbing. Lowell ----- Original Message ----- From: "Harris, Robert" Subject: Kitfox-List: Instructions needed for Radiator Scoop > --> Kitfox-List message posted by: "Harris, Robert" > > > Does anyone on the list have installation instructions for installing a > radiator scoop? Are there mounting instructions for this in the Speedster > manual? > > Robert > > > ________________________________ Message 11 ____________________________________ Time: 12:44:27 PM PST US From: kitfoxjunky Subject: Kitfox-List: Skystar Kitfox Service Bulletins Available Serialize complete at 11/15/2005 03:42:10 PM --> Kitfox-List message posted by: kitfoxjunky Not sure if this was posted previously..but a lot of the info from the Skystar site is available via this link. http://kitfox.lazair.com/skystar/ Gary Walsh KF IV Anphib 912S C-GOOT www.decisionlabs.com/kitfox do not archive ________________________________ Message 12 ____________________________________ Time: 01:11:08 PM PST US From: "Tinne maha" Subject: Kitfox-List: Re: Groundlooped Kitfox needing Parts --> Kitfox-List message posted by: "Tinne maha" Hi Sam, I've got a factory quick build set of model 5 wings (1,400 lb gross weight) that will work for your situation. The only trouble is I don't have struts, wing tips, leading edges, flaperons, etc. I am firm at $2,000 USD plus shipping. They are currently in a crate, so that is inlcluded. Wings are located on central coast of California. Let me know if you're interested, Grant PS: Saw another post about a model 5 being parted out......perhaps you could inquire there about the parts I don't have. Time: 04:33:22 PM PST US From: "Sam Lawrence" Subject: Kitfox-List: Groundlooped Kitfox needing Parts --> Kitfox-List message posted by: "Sam Lawrence" My fox Model IV-1050 recently groundlooped and is in need of repair: I need the following parts: Wing Spars Gear Radiator Left Flapperon Can I dismantle the wing and salvage the ribs and stuff? Any Suggestions, ideas would be appreciated. Thanx Sam Lawrence ________________________________ Message 13 ____________________________________ Time: 01:17:25 PM PST US From: "Harris, Robert" Subject: Kitfox-List: Is a picture of your plane on the Kitfox history? --> Kitfox-List message posted by: "Harris, Robert" Thanks Lowell, By the Way, Is a picture of your plane on the Kitfox history? Robert ________________________________ Message 14 ____________________________________ Time: 03:05:04 PM PST US From: "Rex & Jan Shaw" Subject: Kitfox-List: Mass Balance weights. --> Kitfox-List message posted by: "Rex & Jan Shaw" Only that my K-IV 1200 circa '93 uses 2 balance weights, one on each flaperon outboard end. My problem is that my weights don't balance the flaperon, as they should. Guy, coincidentally only a few days ago some of us were talking with our CFI about mass balance weights. This guy is very clued up on his BAK. Anyway he stated that mass balance weights are not necesarily a 100% balance situation. He said they are often 85 to 95% balance. Now I'm no expert and I'm just passing this on but it looks to me that you don't have a real concern. However by all means please seek further advice but relax a little with your concern. I must admit especially as they are called balance weights I expected them to balance the flaperon [ or aileron ] Rex. rexjan@bigpond.com ________________________________ Message 15 ____________________________________ Time: 04:20:08 PM PST US From: "Lowell Fitt" Subject: Re: Kitfox-List: Is a picture of your plane on the Kitfox history? --> Kitfox-List message posted by: "Lowell Fitt" I just checked out the site and yes that is my Model IV in front of my house. My guess it was taken at one of the Cameron Park fly-ins. Lowell Do not archive ----- Original Message ----- From: "Harris, Robert" Subject: Kitfox-List: Is a picture of your plane on the Kitfox history? > --> Kitfox-List message posted by: "Harris, Robert" > > > Thanks Lowell, > By the Way, > > Is a picture of your plane on the Kitfox history? > > Robert > > > ________________________________ Message 16 ____________________________________ Time: 04:55:51 PM PST US From: "Don Smythe" Subject: Re: Kitfox-List: Auxiliary 13 Gal Fuel Tanks --> Kitfox-List message posted by: "Don Smythe" Don, See below > has anyone drilled and installed fittings in to an > existing tank, and if so did you have any problems? One problem with drilling and installing fittings in a tank is the fact that the fiberglass is real thin and not thick enough to support tapping for threads. The factory drilled holes have a raised boss on the inside of the tank to give the extra thickness for threads. If you drill through the thin parts you will need to epoxy a boss on the outside of the tank then drill/tap through the whole thing. I did do this when adding a tank vent and it worked just fine. > 2, My 2nd question is regarding a WARNING in the > construction manual as follows: DO NOT USE GASOLINE > THAT HAS METHANOL OF ALCOHOL ADDITIVES (GASOHOL) IN > THIS FIBERGLASS TANK. IF THESE FUELS ARE USED, IT WILL > CAUSE A BREAKDOWN OF THE RESIN USED IN ITS > MANUFACTURE. THESE FUELS ARE STRICTLY PROHIBITED. This general discussion has occured many times. The statement that is in your instructions is the first (that I remember) that mentions gasohol will destroy the fiberglass tanks. I was always always doubtful that such a statement existed. You have made my doubts fade away. I can't think of a fool proof solution to get around that situation except don't use alcohol or, replace the tanks. Don Smythe ________________________________ Message 17 ____________________________________ Time: 06:25:05 PM PST US From: Donald STEVENSON Subject: Re: Kitfox-List: Auxiliary 13 Gal Fuel Tanks --> Kitfox-List message posted by: Donald STEVENSON --Thanks Don for the info, I'm in Canada and several of our gas brands have 10% alcohol, I'll have to see if I can find out which ones don't. As for replacing the tanks, do you know of a supplier? Don - Don Smythe wrote: > --> Kitfox-List message posted by: "Don Smythe" > > > Don, > See below > > > has anyone drilled and installed fittings in to an > > existing tank, and if so did you have any > problems? > > One problem with drilling and installing fittings in > a tank is the fact that > the fiberglass is real thin and not thick enough to > support tapping for > threads. The factory drilled holes have a raised > boss on the inside of the > tank to give the extra thickness for threads. If > you drill through the thin > parts you will need to epoxy a boss on the outside > of the tank then > drill/tap through the whole thing. I did do this > when adding a tank vent > and it worked just fine. > > > 2, My 2nd question is regarding a WARNING in the > > construction manual as follows: DO NOT USE > GASOLINE > > THAT HAS METHANOL OF ALCOHOL ADDITIVES (GASOHOL) > IN > > THIS FIBERGLASS TANK. IF THESE FUELS ARE USED, IT > WILL > > CAUSE A BREAKDOWN OF THE RESIN USED IN ITS > > MANUFACTURE. THESE FUELS ARE STRICTLY PROHIBITED. > > This general discussion has occured many times. The > statement that is in > your instructions is the first (that I remember) > that mentions gasohol will > destroy the fiberglass tanks. I was always always > doubtful that such a > statement existed. You have made my doubts fade > away. I can't think of a > fool proof solution to get around that situation > except don't use alcohol > or, replace the tanks. > > Don Smythe > > > > Click on > about > provided > www.buildersbooks.com, > Admin. > _-> > browse > Subscriptions page, > FAQ, > > > > > > ________________________________ Message 18 ____________________________________ Time: 06:40:18 PM PST US From: "Kirk Martenson" Subject: Re: Kitfox-List: FWD: Oil Line Fitting --> Kitfox-List message posted by: "Kirk Martenson" Jimmie: Here is a web site that has some fittings. I used a similar site and got some Earl's race car fittings and some Aeroquip 90 and 180 degree fittings. Check it out. Hope this helps. www.amstreetrod.com Kirk ----- Original Message ----- From: " jablackwell" Subject: Kitfox-List: FWD: Oil Line Fitting > --> Kitfox-List message posted by: " jablackwell" > > Have not been able to get Lockwood to respond. Would appreciate > any ideas from the list as to where I might get such a part as > described below. > > Thanks > > Jimmie > > > ---------- Original Message ---------------------------------- > From: " jablackwell" > Date: Tue, 8 Nov 2005 14:37:02 -0600 > > Hello > > I have an older Rotax 912 UL (serial #4005270) and need a fitting > to the oil pump as follows: > > 1. 12MM to go into the oil pump and 1/2" NPT on the other side of > the fitting. > > OR > > 2. 90 degree fitting with 12 MM to go into the oil pump and a hose > barb fitting on the other side of the 90 degree fitting. > > Hope you can help me. > > Thank you. > > Jimmie > Phone: 512 695-6627 > > Sent via the EV1 webmail system at mail.ev1.net > > > Sent via the EV1 webmail system at mail.ev1.net > > > ________________________________ Message 19 ____________________________________ Time: 07:38:56 PM PST US From: AMuller589@aol.com Subject: Kitfox-List: Re: Kitfox front spar splice --> Kitfox-List message posted by: AMuller589@aol.com It sounds like several people have ground-looped. We did too in our Kitfox V, and broke the front wing spar at the lift strut attach point just outboard of the H insert. The aircraft repair-mans manual shows how to repair a steel tube spar slipping an oversize section of tubing over it and spot welding through holes in the outer tube or welding along the edges. The length of the splice is dictated by inner tube diameter, and the splice tube has either fish-mouth or 30 degree end cuts. Would this be O.K. for the 2.25 inch diameter aluminum spar? One (?) expert says the splice and weld would reinforce the small area of the aluminum spar that loses its temper so as not to affect the overall strength of the splice. Any comments or has anyone a different idea? only the outer three ribs and wing tip were damaged and will be replaced. Thanks in advance. Al Muller 281-480-4461. in Houston, TX ________________________________ Message 20 ____________________________________ Time: 08:30:02 PM PST US From: kurt schrader Subject: Re: Kitfox-List: Re: Kitfox front spar splice --> Kitfox-List message posted by: kurt schrader Hi Al, Sorry about your groundloop. You are talking to those who have and those who are going to here. Splicing a steel fuselage tube is a bit different from an aluminum wing spar. Sorry, I would not recommend doing it. Those spars flex and are stressed in ways that would make me worry about splicing. I think your splice would have to cover the insert as well to be safe. There goes your wing attachment fitting... Maybe one of the resident engineers might address this problem better. That spar insert adds strength, but also creates week point called stress risers. You found one right where it broke. A splice does the same. It adds strength, but also creates weak places not tested before. It would have to be engineered and at least computer tested to see if it would stand up or not. I try to stay out of the "or not" places myself. Best I can offer. Kurt S. --- AMuller589@aol.com wrote: > > It sounds like several people have ground-looped. We > did too in our Kitfox > V, and broke the front wing spar at the lift strut > attach point just outboard > of the H insert. The aircraft repair-mans manual > shows how to repair a steel > tube spar slipping an oversize section of tubing > over it and spot welding > through holes in the outer tube or welding along > the edges. The length of the > splice is dictated by inner tube diameter, and the > splice tube has either > fish-mouth or 30 degree end cuts. Would this be > O.K. for the 2.25 inch diameter > aluminum spar? One (?) expert says the splice and > weld would reinforce the small > area of the aluminum spar that loses its temper so > as not to affect the > overall strength of the splice. Any comments or has > anyone a different idea? only > the outer three ribs and wing tip were damaged and > will be replaced. Thanks > in advance. Al Muller 281-480-4461. in Houston, TX __________________________________ ________________________________ Message 21 ____________________________________ Time: 08:39:31 PM PST US From: kurt schrader Subject: Re: Kitfox-List: Mass Balance weights. --> Kitfox-List message posted by: kurt schrader I bet you are right Rex. A lot of aircraft elevators don't balance level either. The point of the weight is to be heavy enough to prevent flutter. Our flapperons might tend to flutter quite rapidly, but you just can't get those heavy weights to change direction that fast, so they stop the flutter, even if they don't entirely balance the surface weight. kurt S. --- Rex & Jan Shaw wrote: .................. > Guy, coincidentally only a few days ago some of us > were talking with our CFI > about mass balance weights. This guy is very clued > up on his BAK. Anyway he > stated that mass balance weights are not necesarily > a 100% balance > situation. He said they are often 85 to 95% balance. > Now I'm no expert and > I'm just passing this on but it looks to me that you > don't have a real > concern. However by all means please seek further > advice but relax a little > with your concern. I must admit especially as they > are called balance > weights I expected them to balance the flaperon [ or > aileron ] > > Rex. > rexjan@bigpond.com __________________________________ http://farechase.yahoo.com ________________________________ Message 22 ____________________________________ Time: 08:42:52 PM PST US From: AMuller589@aol.com Subject: Re: Kitfox-List: Re: Kitfox front spar splice --> Kitfox-List message posted by: AMuller589@aol.com Thanks for your input. I am writing on behalf of a friend who does not use the computer and I mistakenly said the wing broke at the strut attach point. I went back and reviewed his pictures and it actually broke at the third rib from the wingtip and which coincides with the left the H insert which is intact. I apologize for the mistake and hope that will facilitate the repair. ________________________________ Message 23 ____________________________________ Time: 08:46:03 PM PST US From: kurt schrader Subject: Re: Kitfox-List: Gary Walsh NSI prop --> Kitfox-List message posted by: kurt schrader Hi Gary, Not sure if you covered this recently since I was gone, but I was wondering what your aircraft and prop status are now. Have you rebuilt your plane/engine? Did you replace the CAP prop with another, or a different prop? Did NSI ever come out with the stronger prop for you/us? kurt S. S-5/NSI turbo --- kitfoxjunky wrote: > > Not sure if this was posted previously..but a lot of > the info from the > Skystar site is available via this link. > > http://kitfox.lazair.com/skystar/ > > Gary Walsh > KF IV Anphib 912S > C-GOOT > www.decisionlabs.com/kitfox __________________________________ ________________________________ Message 24 ____________________________________ Time: 09:05:14 PM PST US From: kurt schrader Subject: Re: Kitfox-List: looking for counter balance weights --> Kitfox-List message posted by: kurt schrader Hi Eric, You can still get a lot of the info and support you need right here. I think I learned more on this list than from either manufacturer myself. Just ask and read. I was wondering where you are located, just in case there is another KF owner nearby to assist too? Kurt S. S-5 --- Eric Osmond wrote: > > > Hi, all. > I am attempting to finish a kitfox iv-1200 that I've > been working on slowly for the last 12 years. All > covered now, engine mounted, instruments purchased > and really only lacking the electrical system. My lack > of engineering background meant frequent calls to both > Skystar and NSI (also now gone) for explanations and > advice. I'm debating now whether or not it is > feasable for me to finish the project with my > limited construction skills and the lack of support for the > electric prop (also NSI), engine, and airplane, but > I'm pressing on until that decision becomes clear > one way or the other............ __________________________________