Activity Stream

Activity Stream



  1. EDMO added a post in a topic BRAKE LINE PRESSURES?   

    Herman,
          I cant find any Matco MCs with 1/2 inch bore - which ones did you order?
    I also cant find the insert kit for the 5/8 bore to make it 1/2 inch.  Guess I'm just dumb?
    EdMO
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  2. EDMO added a post in a topic NOSE GEAR SPRING QUESTION???   

    Paul,
          That is a different video than the one I saw with the gear on a Challenger running over a 2x4 and rocks, and ChrisB's Avid with the Kayak under it.
    Looks like same gear tho.
    EdMO
    I may have found some minibike springs for a start.
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  3. EDMO added a post in a topic NOSE GEAR SPRING QUESTION???   

    Paul,
         I think that video is somewhere on here - Snowpaw or someone sent it to me a long time ago.  I have one of those nosegears,   They sold for $1000 each!
    ChrisB used to have one too.  His plane photo is on the video or ad for it - Unfortunately, it is no longer made or sold.
    Mine is a trailing gear by about 26 to 30 degrees trail from a -5 degree vertical pivot post - the spring I am thinking about just goes on the swivel post to let it go up with weight or act as a buffer.   Hope this is somewhat clearer than I can understand it?
    Luke,
         Thanks for the site.  I will check it out if I cant get what I need - Then I have to figure out WHAT I need, and that may take a little while.
    Thanks both,
    EDMO
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  4. wypaul added a post in a topic NOSE GEAR SPRING QUESTION???   

    Ed are you talking about a trailing link nose gear? There is a video on YouTube under "Avid trailing link nose gear" that will allow others to see what it is.

    I tried to post a link but this site doesn't like IE and I don' t know how to do it from my IPad either.
     
    Keep forgetting about Chrome.
     

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  5. Luked added a post in a topic NOSE GEAR SPRING QUESTION???   

    Hi Ed,
     
    I needed a coil spring for a special project a while back, and I found several websites that sell custom and a wide variety of stock coil springs. I think the one I ended up using was this one:
     
    http://www.centuryspring.com/
     
    You can search through their selection on this page:
     
    http://www.centuryspring.com/Store/search_compression.php?reset=1
     
    The advantage is that you can see the exact specs for the spring before you buy it. In your case, You might start with the inside diameter as your first search criteria (to fit your fork tube). Then maybe suggested max load, or spring rate if you have calculated that. Most of them don't seem too expensive, so you can afford to buy more than one option and experiment. That's what I did.
     
    Luke D.
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  6. BryceKat added a post in a topic Sling Seat -- reconditioning   

    Hey Dimitri, I've been doing a lot of work on the bird. Plus I've had a lot of family stuff going on hope to get in the air soon. Glad you're healing up! Bryce
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  7. EDMO added a post in a topic NOSE GEAR SPRING QUESTION???   

    Chris,
         I was hoping you would read this.  I might - that's a big "might" - be able to draw something if I have to -
    Just imagine your fork welded to a 1 1/8 x .188 wall tube and putting a spring over that tube between the fork and the nose mount that the tube slides thru. 
         The book I have says you should have between 10% and 15% of total weight on the nosewheel - but 12% to 15% is better.
    I just want the spring to cushion some of the impact.   My 6.00 x6 nosewheel and the fork of a Tripacer or 206 should handle more weight than I will put on it.
    EdMO
    I think I will look for some motorcycle or ATV springs and see what I can come up with. 
    Right now, I just have a 60 lb/inch spring and possibly a 720 lb/inch spring to try.  I think the 720 is too strong.
     
    P.S.  I was thinking more about higher pressure in the nose tire than the mains - to make steering easier???
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  8. ChrisBolkan added a post in a topic NOSE GEAR SPRING QUESTION???   

    Can you post a sketch? I do not understand what you are describing.

    I am expecting around 100Lb on the nose of my Flat Avid with 912. Maybe a bit more. I don't know. I have to chose a spring for mine too. I expect the spring not to compress at all when installed and only compress when the wheel rolls over bumps. I suspect the loads will be sudden and fairly forceful but brief. Since I have a fairly large tire up there and plan to run low pressure I am really not counting on the spring doing much. I will chose the spring by feel and may end up trying a few different rates before I come to what seems right. I am guessing somewhere between 200 and 500 LB to compress the spring will be about right, but that is a guess.
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  9. EDMO added a topic in Avidfoxflyers General Hangar   

    NOSE GEAR SPRING QUESTION???
    I plan to have a spring-loaded pivot shaft on my nose gear.
    Question:   Estimating a nose gear weight of approx. 120 lbs, would I want the spring to be about 60 lbs compressed, 120 lbs compressed, or something more than static nose gear weight?
    None of my books cover this - most nose gears have a hydraulic or air shock mount, but I don't have room for that.   Any thoughts appreciated.
    Thanks,
    EDMO
    • 11 replies
    • 1,101 views


  10. EDMO added a post in a topic FLOATS ON EBAY $1000 AND NO BIDS   

    Ron,
          You probably know as much as I do about floats - They look like they might float - but have no idea of What they would float!
    You definitely know more about posting - I have no idea how to copy and post something from another site to here, but guess I can live without that knowledge. 
    Thanks,
    EdMO
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  11. EDMO added a post in a topic Sealing the firewall?   

    Ron,
         I guess you can find differing opinions on about anything.   The quote I made about not wrapping exhausts came from a guy who built Aircraft Exhausts for about 30 years.   He said that you defeat the heat sink purpose by wrapping, and will burn out your exhaust valves quicker,  and that the excess heat in the upper exhausts will burn out the chrome in the pipes. 
    Doubt if VW puts chrome or stainless in their pipes which are going to rust out anyway, and their exhaust manifolds are cast iron, unlike airplane engines which use stainless. 
    He probably never made exhausts for 2-bangers.
    EdMO
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  12. RDavidson added a post in a topic Sealing the firewall?   

    Great pics, and great looking plane! The cowling mods are impressive!
    Thanks for the exhaust explanation, it makes sense...
    I guess that is the problem with info on the internet...even idiots have a loud voice, so you never know what info you are getting. I had really looked into wraps for my other project and I was scarred away by a few internet people saying "you'll burn through your pipes!"
    Now I know opposite! Thanks
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  13. wolves200 added a post in a topic Sealing the firewall?   

    This are some of the OLD installation photos I had on hand, the electrics were VERY wrong, and the radiator as well was very badly installed... instead of bolting the radiator on a frame to the engine, I decided it to let it "float" on a small compartment on the front of the cowl, works quite well, but in HOT summer is not that effective, I will go for a belly radiator; far easier.
     
    I will post more pics later.
     
    Regards
    Dimi3
     
     
     
     







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  14. wolves200 added a post in a topic Sealing the firewall?   

    quite the opposite, there is no decay on the pipes, I explain, and I heard this from a European car mechanic in comparison to American car, all metals contract in cold and expand in heat, meaning this temperature changes fatigue the metal and that´s why the exhaust pipes rust, because they get warm and cold rather quick, at least on cold weather countries, and much less in warm weather, I remember back in Venezuela 20 years ago, we didn´t have any problem with exhaust rusting as fast as they do here, VW top end models have their exhaust pipes wrapped and for that reason no need to change the exhaust pipes.
     
    Wrapping the exhaust will prevent this RAPID expansion and contraction of the metal, especially for vehicles that are turned on and off very often, this apply to airplanes in some extend... Helicopters wrap their exhaust to prevent heat inside of the engine compartment. check Rotorway Exec or talon for example.
     
    Regards
    Dimi3
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  15. RDavidson added a post in a topic Sealing the firewall?   

    I always heard that wrapping the exhaust was a performance gain in HP and the only downsides were the extra weight and faster decay of the pipes due to the confined heat. Anybody know if that is true or false?
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  16. RDavidson added a post in a topic Valdeze Fly-in Trip   

    Awesome pics! JEALOUS!!!
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  17. RDavidson added a post in a topic FLOATS ON EBAY $1000 AND NO BIDS   

    Ed,

    I think these are the ones you were talking about...they are small and the pic on the side is of an ultralight with floats. That being said I know the sum of Jack and Squat about floats

    http://www.ebay.com/itm/Aircraft-Floats-/171326808159?pt=Motors_Aviation_Parts_Gear&hash=item27e3dfa05f&vxp=mtr
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  18. SuberAvid added a post in a topic Valdeze Fly-in Trip   

    I didn't get to talk to him and actually didn't realize who it was until you mentioned him.  I wish I had.   I got to look over his plane a bit.  He had additional strips of aluminum taped on the flaps and aelerons to add another inch or so to the chord.  Also bungeed the leading edge slats to hold them open.  For some reason he didn't have an exaust pipe from the muffler out through the side of the cowl, just the hole in the side of the cowl and the paint on the cowl was fried in that area.  Makes me think it must have fell off and he didn't get a chance to replace it... or it was a weight saving mod.
     
    There was one at the Aviation Trade Show in Anchorage the week before that was really stripped down and set up like the Lil cub with only partial covering, no cowl, had a plastic firewall and nitrous.  It was very minimal and looked like it was run hard and put away wet but it probably performed pretty good.
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  19. EDMO added a topic in For Sale and wanted, you got it, I want it   

    FLOATS ON EBAY $1000 AND NO BIDS
    IN AVIATION PARTS - Lady says they are for 2 place cub or experimental, and if refinished and relisted, will be a lot higher - I don't know how to post the ad - and for some reason, the number is not listed for the ad.
    This is 12:20 AM CDT - and the ad is good for another 19 hours only - Just wanted to give you FLOATERS a heads up.
    EDMO
    • 5 replies
    • 779 views


  20. EDMO added a post in a topic BRAKE LINE PRESSURES?   

    Herman,
          I thought that all of the Matco MCs now were 5/8 bore - at least that is what Spruce says.   The original MC-1 had 1/2 inch bore and a reservoir - So, what MC did you get?  Did you buy the inserts?  I have several MC-4 sets, but I sold my MC-1s long ago.
    BTW:  The Cleveland MCs are 9/16 bore from what I have read - half way inbetween the others.
    EDMO
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  21. herman pahls added a post in a topic BRAKE LINE PRESSURES?   

    Hi Ed
    I just installed the Matco 1/2" bore MC's and what a night and day difference in brake performance over the 5/8 bore with 29" tall tires.
    Before the brakes would only hold 3000 rpm and now they hold  full throttle static (5400 rpm) with a 912S  (100 hp)
    I am sure Matco will sell the forked ends (clevis) separate since I needed the longer ones to get my brake pedals forward of the rudder pedals.
    Herman
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  22. thebriman added a post in a topic Valdeze Fly-in Trip   

    I feel accomplished that I can takeoff in under 200 and land in 250.  These folks make me look like a 747.  
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  23. jackak added a post in a topic How big of tire can I put on a 6 inch wheel   

    Randy,
    I think you pretty much nailed it on Desser's plans.  On the next edition though, they, at least I think , they said, there might be tires similar to the ABWs and able to be used on 6" wheels.  I guess we'll just have to wait 'til next year to see what they actually come out with.  I did think that the rep said they were looking at a new technology for duplicating ABW's tires.
    Jackak
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  24. Av8r3400 added a post in a topic How big of tire can I put on a 6 inch wheel   

    Desser Aero Classics
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  25. EDMO added a post in a topic How big of tire can I put on a 6 inch wheel   

    Don't yell at me for being dense, but I am years behind on tires! 
    What Brand are the 21 - 800-6?
    EDMO
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