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About FredStork

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  • Birthday 08/04/1962

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  • Location France

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  1. FredStork added a post in a topic 1999 kitfox IV engine change   

    Yes, and that is what I have (had already). Depending on how your belly radiator is mounted you might have to adjust it, maybe slide it a little to the side to get out of the way for the double pipes. I don't think belly radiator is a showstopper.
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  2. FredStork added a post in a topic 1999 kitfox IV engine change   

    My stone is making waves...
    To my knowledge there is no "factory" built mount for Simonini that would fit Avid or KitFox but with fittings identical to Rotax 582 you can either reuse, or "easily" find, an engine mount that will almost fit. Much easier to modify an existing mount than to create one from scratch - particularly if you want to save the rest of your installation.
    As mentioned, the rear end of the engine is wider than a 582. 

    I made a new back plate, less protruding, and moved the ignition coils. If you have a "free air" mount, like on a trike, you could in most cases just remove your 582, bolt your Victor 2 on and have the engine changed over the day...

    About the exhaust.. One of the reasons you get high power is the tuned exhaust pipes, Yes, exhaust pipes. And yes, the installation of the 2 pipes, rather impressive, can create some concerns... But if I can do it, anyone can... What you don't see in detail on the picture below is that the rear attachment of the pipes can extend downwards if pushed by the (traditional bungee) landing gear. 

    However, Simonini is aware of the double pipes being a potential issue so they propose a single pipe system as well now, much like the one for 582. You will loose a little power but with the 100 HP version you can afford that (or take the 110 HP version...). But having the pipes end behind you, rather than in front of you, is - sound level wise - nice. The belly is also much cleaner than before... 
    Ed, I'm not sure what you meant by "other stuff"... I reused my radiators and radiator mounts, changed nothing. I had to make a small "bump" on the belly of the cowling but other than that... no "other stuff"...
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  3. FredStork added a post in a topic 1999 kitfox IV engine change   

    Yes, the gear box can be mounted both ways. It has 2 different oil level plugs. 
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  4. FredStork added a post in a topic 1999 kitfox IV engine change   

    Can I throw a stone in the pond?

    Simonini Victor 2 Plus (the current "smallest" Victor 2 model) give 100 HP and weights ~20 kg less than a 912 (~7.5 gallons of fuel), consumes 12-13 liters/hour (like a 912). Compared to the 912, other than half price (costs like a new 582) and the already mentioned 20 kg less, you can also change to a light weight battery as you don't need a heavy lead battery in the tail for CG... (another ~1.5 gallon of fuel..).
    It uses the same fittings as the 532/582 and the propeller axis comes out at the same position but the engine mount might need some minor re-modelling as the rear of the Simonini is wider than the Rotax. You can reuse the radiators from your 532/582.
    I know Simonini is almost unknown in the US. I have only 150 hours on mine (the old model with only 92HP...) and it works like a charm. The power is there, no question about that, and no issues to report. I have been in contact with a number of Simonini Victor 2 owners and no one has any (first hand) issues to report. The only problem I have had is that excess oil accumulate in the spark plugs (mounted heads down, I had the same issue with my 532...) but this appears to have been resolved by a slightly different design of the cylinder heads in the current 100 HP model. A friend just installed one 100 HP in his Avid and he is very happy with it. 
    To be clear, I have no relation to Simonini, I'm just sharing my experience (you can find more info on my blog, link in my signature). Nor do I have anything against Rotax, but when I got the opportunity to replace a 30 year old snowmobile engine with a modern engine I took a chance I have not regretted. Ok, maybe I have something against Rotax, maybe I got tired of the taste after getting fed Rotax morning, lunch and dinner every day...and paying it through the nose...
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  5. FredStork added a post in a topic Neat Avid flyer video from Finland   

    I'm just about to put my skies on... taking off and landing on snow is a different feeling, very smooth... In my last video I went to a few mountain airfields where I plan to return on skies this winter and ski myself (I just added a ski rack to the side of the plane..).
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  6. FredStork added a post in a topic What was i smoking?   

    C5engineer.. You have what I want... Do I understand you right, you have a Avid bush gear that you modified to fit the double shockmonster dampers... Right? What is the lengt required to install those dampers? Did you get the shockmonster dampers from Kitfox? If so... how much...?
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  7. FredStork added a post in a topic What was i smoking?   

    Nice to see I'm not the only one thinking about what could be done about the Avid landing gear - I guess everyone how have done a hard landing think about it...
    There are several solutions on the market that we could get inspiration from.
    The Just Aircraft Super STOL give a real "badass" look but also requires major modifications. From a putting the forces in the right place this is probably the best solution (Layman's opinion...)
    KitFox have a STi Shock Monster landing gear that I find exactly right (would be easy to adapt as well) with double dampers that efficiently reduce the size of the package (but not the price...) See Trent Palmer's video below from 4 minutes (it should start at the right time) where he explain this modification, and other, to his KitFox. And do see all his videos, they are great. This kit is less expensive that the kit Beringer below, but still why more that we would dare to tell our wife...

    An alternative is the French Beringer solution (that is just as expensive as it looks) here mounted on a Savage that is pretty close to our planes.

    Another idea comes from the (French) manufacturer  of the "Petit Avion", similar to ours with folding wings. It is a tricycle so you need to imagine the gear "the other way around". It would requires more modifications as what we have on the sides they have in the middle but for anyone doing rebuild this concept could be an option.

    Here is Trent's video, watch from 4 minutes:

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  8. FredStork added a post in a topic Fred's films   

    Autumn, the perfect time for flying. On November 1st I wisited 3 mountain airfields where I had never landed before... and made a little film...
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  9. FredStork added a post in a topic Fred's films   

    Time for another film....
    The French taildragger brotherhood is arranging a yearly fly-in. I had never been there before but will absolutely come back... I obviously brougt my cameras and have just finished the film. I hope you enjoy it
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  10. FredStork added a post in a topic Time for a new Tailwheel!   

    Good luck! Tell us how it worked out (and what imperial dimentions you ended up with for future candidates)
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  11. FredStork added a post in a topic Time for a new Tailwheel!   

    Sure... but I'm not convinced it will help you as I'm in the metric world and you in the imperial world...
    I used 3 steel tubes to increase the diameter of the axis to 15 mm. Inner diameter 13 mm, external diameter 15 mm, length of each tube 20 mm. there is no added value of having 3 tubes but the longest they had was 20 mm.. and the alternative was ordering several meters of uncut tube...
    The new wheel need to be sitting 2 cm from the inner side to be centered. 1 brass tube with inner diameter 15 mm, external 20 mm and 20 mm in length.
    The shorter brass tube next to the nut is of the same initial dimensions and cut down to the appropriate length to get a snug fit.
    Hope this helps!
    And about the modification and the wheel itself...
    So far I have only landed on grass strips so it still looks like new. But to be very honest I had almost forgotten about it, it just sit there and does it job. It was much HARDER to forget the Maule wheel if you see what I mean...
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  12. FredStork added a post in a topic Tailwheel replacement (5 inch)   

    Hi TSoftware,
    note also the recent post 
    I would not be too concerned about slightly raising the tail. I can't see the entire spring on your photo but it look rather short and with a 5 in wheel you might currently be lower than many others. True, if you have shopping chart wheel on the main gear... well...
    I do agree with previous comments, pneumatic is definitely the way to go. So is double spring...
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  13. FredStork added a post in a topic USB 4A dual smart charger port   

    I'm not alone... Clicked your link and got "Currently unavailable"....
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  14. FredStork added a post in a topic USB 4A dual smart charger port   

    Yeah, I found one that worked well and decided to order a second one, guess what... right "this product is no longer available". 
    Does anyone recognize this? NOT limited to USB chargers!
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  15. FredStork added a post in a topic Time for a new Tailwheel!   

    Wheelchair? That explains why it says "NOT FOR HIGHWAY USE" on it... After all it is sold as nose wheel and in the tail wheel assembly by Matco. Time will tell. 
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