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Activity Stream
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dholly added a post in a topic Different wings
Well Ed, I'm not an aeronautical engineer so I can't say what effect changing any one or multiple combination of characteristics to the HH airfoil will have. My comments are limited to trying to modify the Avid HH rib airfoil to mimic the KF 4-7 rib airfoil exactly. I'll leave the 'close enough', mix 'n match stuff and test flights to others.
I think you might be surprised at how different the two airfoils actually are, it's not just "a tiny bit more curve on the top". The top airfoil, the lower airfoil, the rear spar hole location and leading edge are all notably different, as are the leading edge and capstrip width. I think modifying HH ribs into KF 4-7 rib clones would be a LOT of work. IMHO, it would be easier to just route out a new set.
Some more pics that might be useful...
These show a KF4-7 rib against an Avid 'transitional' rib (speed rib lower profile with HH upper profile). The special transitional rib is used to mate Rib #1 on an Avid Speed wing or Aerobat to the butt rib on the fuse). Avid rib has oval cutouts in the web, KF rib has truss like cutouts. Clearly, the top airfoil surface of the Avid HH/STOL rib is quite a bit different than the KF4-7 Riblett airfoil. Even though it doesn't show well in the pic, the Avid capstrip actually sits directly on the spar. Capstrip on the KF rib sits ~1/4" above the KF rib. While it might sound insignificant, it created huge issues when I used the old Skystar slip-in wing tanks in my Avid Mk-IV HH wing.
These pics show the underside difference between the KF4-7 rib and my A+ butt rib (Avid's HH/STOL top and bottom airfoil profile).
HTH
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dholly added a post in a topic Different wings
^ That's what I understood too. And, unless something changed, I believe both Skystar and KF had extruded aluminum stiffeners for the .065" spars only, not .083" spars. According to Steve Winder, Avid and [old] Airdale were able to source extruded aluminum stiffener material that fit the .083" thick spar tube at one time, but it was so expensive given the small amounts ordered that they dropped it. I've never heard of or seen a definitive source since then.
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EDMO added a post in a topic Yukon scenery
Being near Neanderthal, I had no idea that it took so long to download a video - now I appreciate them even more.
Don't look for any of them from me - I probably couldn't turn the camera on!
EdMO
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AlbertaPilot added a topic in For Sale and wanted, you got it, I want it
Kitfox Model IV-1050 w/912ULSKitfox Model IV-1050, built in 1995, 357TTAF, Speedster tail with larger rudder and electric trim, Bush gear, brand new Rotax 912ULS 100HP engine, Ivoprop medium Quick-adjust prop, upgraded panel with Dynon EFIS and EMS, Garmin 695 GPS and dock, Composite Designs LSA Power Panel, Microair radio, no transponder. Asking $35,000, just spent $29,000 on engine and panel. Located in Alberta, Canada. Email rengler@live.ca, Cell (403)896-0551 (Randy)
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IFMT added a post in a topic Yukon scenery
I'll post some more. It takes about a minute per second of video to upload.
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Luked added a post in a topic Yukon scenery
Thanks for the video. I like the part where you look down at the tire and you can see the lakes below you. That's a very pretty area.
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EDMO added a post in a topic Plane & Pilot Midwest LSA Expo Sept. 4-6, 2014
Mark,
If you don't have it already, I will PM and trade cel numbers with you - Thinking I will go Saturday and stay at Holiday Inn near I-57 and hwy 15 that night - look around Sunday and come home - got to read it again and see what is best.
EDMO
Well, reading it again - looks like I may go on Thursday or Friday instead of Saturday.
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marksires added a post in a topic Plane & Pilot Midwest LSA Expo Sept. 4-6, 2014
If I go, I'll send you a PM. I'll be a not tall, not handsome, not quite as old man with a piper yellow Jack Brown Seaplane base hat on. And likely a tropical shirt - I like to pretend I'm in Florida even when I'm not.
Mark
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EDMO added a post in a topic Plane & Pilot Midwest LSA Expo Sept. 4-6, 2014
Mark,
Look for me there if I go - U.S. Army on black cap, on a short, ugly old man, and I will try to wear my Blue EAA nametag.
EDMO
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marksires added a post in a topic Plane & Pilot Midwest LSA Expo Sept. 4-6, 2014
I'm thinking about it, but won't know for sure until a day or so before I go. Probably just fly the Cherokee over.
Mark
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EDMO added a post in a topic Yukon scenery
Wow - You said "Little"! Just a few seconds - is that all there is to it? Sure would like some longer views of where I've been. "lol"
EdMO
We would be watching a ball game with that fancy TV on your IP!
Ed
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EDMO added a post in a topic Plane & Pilot Midwest LSA Expo Sept. 4-6, 2014
I received tubing from Wicks today - ordered it yesterday!
Is anyone going to the LSA meet at Mt. Vernon, Illinois? The J3 is going to Wisconsin that week, so I might just drive over to the LSA gathering.
EDMO
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IFMT added a topic in Avid fox flyers pics and vids
Yukon sceneryHere's a little vid of the Livingstone trail in central Yukon. Link:https://www.youtube.com/watch?v=L0wrbikd8es&feature=youtu.be
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Av8r3400 added a post in a topic Different wings
My understanding is that Just buys the extruded stiffeners from Kitfox.
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IFMT added a post in a topic Different wings
It's been a few years and I can't remember. Had to repair the left wing after a ground loop. I was getting material from a few places so I don't know exactly. Give them a call. Might not be that bad.
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EDMO added a post in a topic Different wings
IFMT,
How much were the 083 stiffeners from Just? If their spars are priced like their tanks, I cant afford them!
EDMO
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IFMT added a post in a topic Different wings
Maybe I missed this when I was skimming through this thread but I bought the aluminum stiffener insert for .083 tubing from Just aircraft. Pretty sure that Just uses .083 spars in their highlander.
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dholly added a topic in Local Fly in's
Plane & Pilot Midwest LSA Expo Sept. 4-6, 2014
Greetings from Mt. Vernon, Illinois - proud home of the Plane & Pilot Midwest LSA Expo and EAA Chapter 1155. The event is just over two weeks away. This is your official invitation!
The event is in its 6th year and is scheduled for Thursday, September 4th, through, Saturday, September 6th, 2014 at Mt. Vernon Outland Airport (KMVN), Mt. Vernon, Illinois. Along with nearly every major LSA distributor on the flightline, there will also be a great mix of STOL, Part 103, gyroplanes, and homebuilts. There is a unique event because it is one of the few that offers the attendee the ability to comparison shop and then quickly and conveniently take demo flights. Visit www.midwestlsashow.com for all the details.
I am very excited about this year's expo. My team and I are doing everything possible to further aviation at this event:
Admission to the Plane & Pilot Midwest LSA Expo is FREE! The welcome mat is out for everyone. Hopefully a few new pilot starts will occur.
The best in the business are scheduled for three days of Seminars/Forums. Navigating via iPAD, Gyroplane Operations, and Flying to the Bahamas are just a few of the topics.
In conjunction with the Jefferson County Hall of Honor and Colonel R.D. White Veterans Museum (www.VeteransHallofHonor.com), a Veterans Reunionwill be held inside the museum daily during the Expo. Come meet some of the heroes responsible for our freedom. Different Warbird aircraft are expected to be on static display supporting the Veterans Reunion.
Women With Wings, the St. Louis Chapter of Women In Aviation, will be hosting their Aircraft Washon Saturday, September 6th. The WWW Aircraft Wash raises scholarship funds for aspiring female aviators in the St. Louis Metro.
93 Octane/10% Ethanol Premium Auto Fuel will be availablefor the Rotax powered aircraft. The airport has mobile JetA, 100LL, and RoGas capabilities.
Free camping is availableat the airport. Whether it is under the wing of your airplane, in a tent down by our lakeshore shelter, or in a land schooner plugged into our electrical grid, we have a great spot for you. Stay one night or several. Free showers are available too.
Of course there are many hotel rooms just three miles from the airport. Catch a free shuttleto hotel row - no need for ground transportation.
Visit us at www.midwestlsashow.com for more information.
Please forward this invitation to all of your aviation contacts. I look forward to seeing you in September!
Chris Collins
EAA 1155 Secretary
Plane & Pilot Midwest LSA Expo
www.midwestlsashow.com
(618) 315-5462 (cell)
(618) 242-7016 (office)
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EDMO added a post in a topic Different wings
Doug,
I believe he has good HH wing ribs - The only difference I have seen in the top profile is that my early Kitfox rib had just a tiny bit higher curve on the top - should give more lift? I think his easiest, but maybe not perfect way to go, would be modifying what he has and he doesn't have to buy flaperons if he sticks with the Avid modified ribs.
EdMO
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dholly added a post in a topic Regulator rectifier for Rotax 582
Another vote for the KeyWest regulator, no question.
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dholly added a post in a topic Different wings
Willis - sure, you can change the lower profile of the Avid HH rib but it won't turn it into a Riblett airfoil. Even if you make the lower airfoil profile similar, the top airfoil profile, flaperon rib hinges and spar hole cut outs in the rib webbing are all different. Easier to buy a set of KF4 ribs or make your own than trying to modify the Avid HH ribs you have.
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Guest added a post in a topic Regulator rectifier for Rotax 582
I believe the Key West (the blue regulator?) is a series as opposed to shunt regulator. I think it has better voltage regulation and cleaner less electrically noisy output than the Rotax shunt regulators. I am also pretty sure they do not require a load to regulate properly.
This is what I have heard and retained over the years as "fact". Not my own first hand knowledge. If someone knows different I would like to know.
Chris
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slinger added a post in a topic Howdy, I'm Art Johnson in Nevada and I just bought an Avid C
Well, I found the battery and am mollified it's in the tailcone to mitigate some of the Soob's weight.
The more I pore ever the plane the more I like it and the fact that I can change/modify things more easily than the Cessna.
I lurked some to begin with, and I value the knowledge and helpful demeaners here.
And much thanx to akflyer for getting me hooked up.
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sioux201 added a post in a topic Regulator rectifier for Rotax 582
Key west
Great people to do business with!!!!
Had a 5 yr old unit, noticed a higher charge rate, they sent a new unit
Add them to great people to deal with, warp drive( Daryl ),Grand Rapids insterments !!!!!
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C5Engineer added a post in a topic Dimensions of Kitfox 582 oversize belly radiator?
Thanks for the update Dave. What did you end up doing with your cowling? I still haven't done anything with mine. I have been flying another plane most of the summer.
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