flywise

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Everything posted by flywise



  1. flywise added a post in a topic Avid Catalina for sale on ebay   

    That does make sense...
    & nice way to hang the wings
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  2. flywise added a post in a topic Avid Catalina for sale on ebay   

    Hey , yes you're right but.....then you have to find some serious space to store the set of wings on a support!    hahahah!!!!  
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  3. flywise added a topic in Avid Catalina   

    Avid Catalina for sale on ebay
    Look at this one I found on e bay. Seems a bit fishy to me....only 2 Hrs TT. I could imagine the owner having done a ground loop  and being frightened (why taking the wings off for space???They fold in minutes ). The Catalina is real easy on water but needs attention when landing on pavement. This one never landed on water!!!!!!
    Looks good though..
    https://www.ebay.com/itm/Amphibious-Avid-Catalina-ROTAX-582-VERY-VERY-LOW-HOURS-NO-RESERVE/333148348865?hash=item4d913061c1:g:kUEAAOSwQsFcqnMr
     
    • 28 replies
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  4. flywise added a post in a topic Yamaha RX1 Engines   

    This looks very much like a sequoia Falco aircraft....beautiful
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  5. flywise added a post in a topic Need help identifying this pully   

    Why not take a standard aircraft cable pulley?? Just take the right size and you're good to go.
    https://www.aircraftspruce.com/catalog/appages/phenolicpulleys.php?clickkey=9427
     
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  6. flywise added a post in a topic Rotax 912 trigger coil dissected   

    Hey John,
    I have looked at the Jab engine and what put me off was the fact it is a direct drive and revs pretty high.... your propeller speed is between 2800 and 3100 rpm in cruise !!! On the rotax 912 your propeller speed in cruise is  2100 rpm thanks to the reduction gearbox and that allows for much more efficiency (larger diameter propeller). Also the Jabiru engine being the same weight has 15Hp less.
    What upsets me with rotax is that they overprice parts not built by them and can be found much cheaper by the original manufacturer (Bing parts/ ducati parts/ ignition cables, NGK ignition parts, spark plugs, intake filters, fuel pump etc...)
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  7. flywise added a post in a topic Rotax 912 trigger coil dissected   

    Hey Randy, I cleaned it all up, re-installed all the bits and my engine /ignition works like a charm now. You have to be careful not to break the plastic clip when you remove it and also when you re assemble the trigger you have to make sure the center pole piece is fully pushed in ( no play in/out) .
    I don't think a small amount of surface rust matters but if there has been water or condensation inside the trigger and the center pole piece is rusted between magnet-metal plate then I believe you will have a problem (less magnetism in the pole piece)
    Cheeeers
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  8. flywise added a post in a topic The Magnum is here!   

    Also I'd like to add that when flying this thing you have a ball....
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  9. flywise added a post in a topic The Magnum is here!   

    Hey Vance,
    looks like a nice Magnum. Just noticed the aircraft still on the trailer has no wing supports installed (links wing front spar to lower strut attachment). I hope your dad did not trailer it without as the wings were not designed to take the "road " beating without..
    Here a picture of my wing supports installed
    Looking forward hearing of your first fights....when I first flew the Magnum I was surprised how much rudder I needed to coordinate my turns.....much more than my Catalina.
     
    Regards, Laurent


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  10. flywise added a post in a topic Insurance prices   

    750'000$ liability only cost 380$ a year.......with Air1 insurance
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  11. flywise added a post in a topic Rotax 912 trigger coil dissected   

    Hey Chris,
    you'r absolutely right, between any of the two coil wires and ground (or the wire cover metal mesh) you must have open circuit.
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  12. flywise added a topic in 4-strokes   

    Rotax 912 trigger coil dissected
    Hey 
    I would like to share my findings regarding the expensive rotax 912 trigger coils. It all started with a 300 rpm mag drop.....
    The manual states the values regarding the resistance across the winding of the trigger coil (inside the plastic housing) and when I measured mine it was within limits. Then I measured the resistance between the center pole piece and ground....I had a high resistance and each trigger had different values (there is NO info anywhere about that measurement). I thought it should be an open circuit there ....and as I am curious by nature, a few hours later I had the trigger appart to see how it is built inside. Looking at the simplicity I would like to see these triggers cost 8 $ each.......and not the 200 $ rotax is asking us.
    Also I found some of the center pole pieces to be covered in rust as there is no seal between the plastic casing and the pole piece going through. The high resistance I measured is normal I think as the center pole piece is in contact with the magnet and the magnet is stuck to the metal bracket. I actually am measuring resistance through the magnet.
    That's it for my latest head scratching activity
     
     


    • 9 replies
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  13. flywise added a post in a topic Snowplay   

    I love it......could you give us an idea how long the editing work took you?? Do you need a particularly powerful computer??
    Thanks
     
    Genial, salutations Laurent
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  14. flywise added a post in a topic anybody knows this guy? (possible scamer)   

    Hey Pascal,
    also look at the latest rotax list of stolen engines.....it is a must when you buy second hand.
     
    https://legacy.rotaxowner.com/si_tb_info/serviceletter/sl-912-013.pdf
     
     
     
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  15. flywise added a post in a topic anybody knows this guy? (possible scamer)   

    Hey Pascal,
    when I was looking for a second hand 912 there were 8 engines out of 10 not legit/scam. I found a very effective way to sort out the real vs scammers by saying I was very interested, ask for additional close up pictures. If I got the pictures I would propose to meet in person to pay & pick up the engine (or tell the seller a german friend of yours will meet him) . At that stage I would request the address and personal info. Most scammers will end the communication there!!!!!  If the engine is legit, I would ask the seller to bring it to an engine shop and have the shop take the engine, pay for it (you'll have to send the money to the shop) and crate it to send it out to you. Most shops will do it for a fee. 
     
    Hope this helps
     
    P.s I found all lower priced 912 engines to be scam!!!
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  16. flywise added a post in a topic Need help   

    Thanks, I stand corrected. Great to learn stuff. I thought a tailwheel hitting the rudder would inflict more damage.
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  17. flywise added a post in a topic Need help   

    Looking at your damage I don't believe the tailwheel hit your rudder. Instead I would bet someone (not clever) tried to move the aircraft lifting the tail using the bottom of the rudder as a "handle"....the only/easiest place to lift if the wings are folded.
    I might be wrong but here my 2 cents
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  18. flywise added a post in a topic "Bush Gear"   

    Just had to say it....I have no shock absorption at all on my rig (avid catalina) besides my 8.00x6 'small' tires...every landing I try/have to make it a soft one, go arounds are normal for me...
    Big tires and bush gear gives more margin for sure.
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  19. flywise added a post in a topic Arab airplane for sale.   

    specs please.....useful load, stall speed, cruise speed, landing distance, endurance and of course empty weight ( I do have to be able to carry the thing...)
    1000$ is a bit light ..... I would rather pay 10'000 $ if the specs are good
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  20. flywise added a post in a topic Kitfox plane doing glider tow   

    Hey Jim, if looking at the registration this would be in the UK (Great Britain/England).... I would say plenty of power to pull that glider into the wide blue sky  Probably a rotax 912ULS under the hood.
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  21. flywise added a post in a topic Avid C HH wing build 101   

    You can try these guys
    https://trsaero.com/monogramaerospace/products/blind-bolts/visu-lok/
    The visu-lock is easiest to install without special tool as the threaded rod section has a flat allowing you to install a wrench so as to turn it ...
    You will see the strength on the above website....make sure they are not too strong as the aluminum spar is relatively soft and might deform when you install a too tough lockbolt
    The SS43FS rivet is a stainless steel and all I found is a quote from Dholly, see below:
    " the first number after the material code (i.e., SS=Stainless Steel) indicates the diameter of rivet in 32nds of an inch (i.e., 4=4/32" or 1/8") and 2nd number indicates the length of the rivet in 1/16ths of an inch (ie., 3=3/16").
    Therefore, SS43FS would be a 1/8"D x 3/16"L Stainless Steel rivet. Not sure if FS refers to head type, but I suspect using a standard round or universal..."
    Now regarding the strength of a 1/8"D x 3/16"L Stainless Steel rivet, I found a company providing aircraft grade ss pop rivets with all the data (it is mostly in mm so you will have to translate into inches). See page 18 onwards for SS pop rivets.
    https://m.europages.com/filestore/gallery/df/f/19339320_b8fe5d0d.pdf
     
    Also note that the Jo bolt system can have different names like "Jo-bolts, Visu-lok®, Composi-Lok®, OSI Bolt®, and Radial- Lok® fasteners use the drive nut concept and are composed of a nut, sleeve, and a draw bolt
    Here a little write up for you:
    http://www.flight-mechanic.com/structural-fasteners-special-purpose-fasteners-blind-bolts/
     
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  22. flywise added a post in a topic Hello from Utah   

    Hey Doubleclutch,
    Welcome, you have landed at the right place, people are awesome and usually there will be a solution for a given problem.
    I have always wondered about the BMW1200 engine conversion....anyone tried that?? Parts are cheap and engine (110Hp) is reliable

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  23. flywise added a post in a topic Avid C HH wing build 101   

    Hey Wyatt, just get the correct size  Jo bolts...you can install using a couple wrenches / pliers...no need for the tool (no space anyhow)
    Hope that helps
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  24. flywise added a post in a topic Avid C HH wing build 101   

    Hey Wyatt,
    your 'impossible ' rivet install may be solved by installing an aircraft grade Jo bolt. Below you'll find a video to show you how they are installed. The principle is the same as a pop rivet but instead of just pulling a shaft through the rivet body, the Jo Bolt uses a threaded shaft and a disposable nut (breaks when pull pressure is obtained). In the video they show you the install using a tool (no space for you) but I have installed Jo bolts with success using two spanners (one holding the nut and one turning the threaded shaft until it breaks). It is a bit slow to install in a tight place but I am sure it would work on your strut fitting .. The Jo bolts are much stronger than pop rivets.
     
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  25. flywise added a post in a topic How critical is the flaperon himge angle   

    Hey Tjay,
    you're perfectly right but I also found out that if you do a perfect alignment job being static on the ground, then in flight with the wing flex you will have quite a bit of binding when you deflect the flaperons one way or another (trailing edge moves in flight). For me I found the solution was to have a bit of "slopp/play" in the plastic hinge bushings (but no play in any control linkage).
    My 1/2 cent
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