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Thread: 0-320 hp upgrade

  1. #41

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    Quote Originally Posted by barrie View Post
    I was stupid enough to file the required Major Modification report. The engine type is noted on the C of A so I didn't have much choice. The moral of the story is stay with the same type of engine.
    I hope you can succeed with them and be ready for the float season this spring! Hang in there!
    All the best.

  2. #42
    skywagon8a's Avatar
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    barrie, I've been following your travails, yet I'm still confused as to what type of basic airplane that you have. When you say C-120, do you mean Cessna 120 on which you have installed a Subaru and have now changed to a 0-320?
    N1PA

  3. #43
    hotrod180's Avatar
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    Quote Originally Posted by RoddyM View Post
    Fair enough. How did Transport find out about the engine switch though?
    There's a guy here at my airport who switched from a ground-adjustable Sensenich prop to a Catto prop on his RV12.
    Talking to him yesterday about it, I was surprised to hear that he had to go through another period of "phase one" flight testing.
    Fool that I am, I woulda thought you could just hang the prop on there, sign it off (as the aircraft repairman) in the logbooks, and go flying.
    Cessna Skywagon-- accept no substitute!

  4. #44
    CamTom12's Avatar
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    Quote Originally Posted by hotrod180 View Post
    There's a guy here at my airport who switched from a ground-adjustable Sensenich prop to a Catto prop on his RV12.
    Talking to him yesterday about it, I was surprised to hear that he had to go through another period of "phase one" flight testing.
    Fool that I am, I woulda thought you could just hang the prop on there, sign it off (as the aircraft repairman) in the logbooks, and go flying.
    Yeah, but the additional phase 1 is very limited - like 5 hours or something like that. I think it’s meant to require flight testing on engine/prop combinations that may not have received formal testing (like in a TC or STC process).

  5. #45
    barrie's Avatar
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    Quote Originally Posted by skywagon8a View Post
    barrie, I've been following your travails, yet I'm still confused as to what type of basic airplane that you have. When you say C-120, do you mean Cessna 120 on which you have installed a Subaru and have now changed to a 0-320?
    It was a Cessna 120 with a whole lot of modifications. But, yes it is basically a 120 as far as the configuration is concerned. It initially had a Subie EJ22 160HP which worked very well; but due to hot start issues (especially on floats) we converted to the 0-320.
    Thanks skywagon8a thanked for this post

  6. #46
    skywagon8a's Avatar
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    Thanks, Are you on EDO 1650s or some other type of floats?
    N1PA

  7. #47
    hotrod180's Avatar
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    Quote Originally Posted by GeeBee View Post
    If it is certified, you need an STC for the engine because you need authority to change the data plate. You can get that from LyCon. ….
    Not sure which model engine you have,
    but Art Mattson had an STC to convert the E2A from 150hp to 160.

    http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgstc.nsf/0/824317613f8458ad86257ed2004ebf70/$FILE/SE367CH.pdf

    as well as an STC for the installation of that modified engine onto a Cherokee.
    Looks like someone acquired Art's STC's after his death.
    https://www.aviationpros.com/press_r...ne-of-faa-stcs
    Cessna Skywagon-- accept no substitute!

  8. #48
    barrie's Avatar
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    Quote Originally Posted by skywagon8a View Post
    Thanks, Are you on EDO 1650s or some other type of floats?
    It's on EDO 2000's with an 1850 lb. gross. Works really well.
    Likes skywagon8a liked this post

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