Welcome! Becoming a registered user of ShortWingPipers.Org is free and easy! Click the "Register" link found in the upper right hand corner of this screen. It's easy and you can then join the fun posting and learning about Short Wing Pipers!

Thanks Thanks:  0
Page 1 of 2 12 LastLast
Results 1 to 10 of 18

Thread: Sensenich W80CM8 a worthy alternative to Borer 80"?

  1. #1

    Join Date
    Dec 2017
    Posts
    3
    Post Thanks / Like

    Default Sensenich W80CM8 a worthy alternative to Borer 80"?

    Airframes Alaska recently started selling the Sensenich wood composite seaplane props. They are 80" and come in pitch between 42 and 47 (I think.) At 17 lbs vs 34 lbs for the aluminum McCauley Borer, and cheaper, it seems like a good alternative.

    The issue seems to be that it's intended for a 180hp engine. Trimmer has the STC for the PA-22 with O-360, but there is also an STC for the PA-18 with O-320 (IIRC) but no STC for PA-22 with O-320. The Borer is STCd.

    Is this just an issue of "no one has gotten around to trying to certify that yet"? Or is there some real reason it shouldn't be run on an O-320? Guys have been running 8042 and even finer for decades on -18s and -22/20 with no issues other than takeoffs being too short.

    How should I summarize the work description on my field approval 337?

  2. #2
    andya's Avatar
    Join Date
    Dec 2007
    Location
    UT47
    Posts
    1,465
    Post Thanks / Like

    Default Re: Sensenich W80CM8 a worthy alternative to Borer 80"?

    Most O-320's use a smaller diameter prop bolt than the O-360, is the w80cm8 available with the
    O-320 sized bolt holes?
    "Progress is our most important problem"

  3. #3
    Administrator Steve Pierce's Avatar
    Join Date
    Nov 2007
    Location
    Graham, Texas, United States
    Posts
    11,094
    Post Thanks / Like
    Blog Entries
    1

    Default Re: Sensenich W80CM8 a worthy alternative to Borer 80"?

    I have one ordered for a customers Super Cub. Waiting to hear some real world data between the 82" McCauley (Borer) vs the 80" wood Sensenich. Just needs someone to persue the STC, heard Eddie Trimmer might be adding it.

  4. #4

    Join Date
    Dec 2017
    Posts
    3
    Post Thanks / Like

    Default Re: Sensenich W80CM8 a worthy alternative to Borer 80"?

    Quote Originally Posted by andya View Post
    Most O-320's use a smaller diameter prop bolt than the O-360, is the w80cm8 available with the
    O-320 sized bolt holes?
    Good point, I think it's just a distinction in model number. The O-320 hub model is called the W80DM (I think.) This is the one that's STCd for the PA-18 but not the PA-22.

  5. #5
    rocket's Avatar
    Join Date
    Dec 2010
    Location
    Talkeetna AK
    Posts
    847
    Post Thanks / Like

    Default Re: Sensenich W80CM8 a worthy alternative to Borer 80"?

    Don't quote me on any of this but I just got off the phone with one of my long time part venders who will be selling this propeller.

    Price is about $4500 for both the 0320 and 0360 model with mounting kit.


    They only have two props that are loaners out for testing. Both went to Valdez so the players out there this weekend could wring it out.


    No current stock but orders taken at AA show last weekend. Hmm, heard that before...


    Prop is manufactured under car4 so users who have the TCDS that's says "wood prop..." Can just bolt on and go?


    Kevan Asher has some STC
    0360 stc is 20/22 tail dragger
    Trimmer is working on other STC


    He did say he had one small group of testers bring it back and not like it . Most were positive though.


    They are saying if one is running a 8242 bore the 8038 is a direct replacement.


    Wood prop with glass Carbon sheath.


    Much wider, 2"?, cord then Borer...


    Rocket

  6. #6
    rocket's Avatar
    Join Date
    Dec 2010
    Location
    Talkeetna AK
    Posts
    847
    Post Thanks / Like

    Default Re: Sensenich W80CM8 a worthy alternative to Borer 80"?

    Forgot to add it has a SS leading edge.

    Steve, which pitch did you order and for which engine/hp?


    Rocket

  7. #7
    Administrator Steve Pierce's Avatar
    Join Date
    Nov 2007
    Location
    Graham, Texas, United States
    Posts
    11,094
    Post Thanks / Like
    Blog Entries
    1

    Default Re: Sensenich W80CM8 a worthy alternative to Borer 80"?

    I have been talking to Sensenich over the last month.
    $3210.00 retail and fiberglass covering an additional $350.00 retail.


  8. #8

    Join Date
    Apr 2009
    Location
    Huntsville, AR
    Posts
    123
    Post Thanks / Like

    Default Re: Sensenich W80CM8 a worthy alternative to Borer 80"?

    Quote Originally Posted by Steve Pierce View Post
    I have been talking to Sensenich over the last month.
    $3210.00 retail and fiberglass covering an additional $350.00 retail.

    Keep us posted.....I would be interested in trying one on my 160 horse PA 22-20.

    Fabricman


    Sent from my iPad using Tapatalk

  9. #9
    dhillier's Avatar
    Join Date
    May 2014
    Location
    EGHA - UK
    Posts
    52
    Post Thanks / Like

    Default Re: Sensenich W80CM8 a worthy alternative to Borer 80"?

    "Prop is manufactured under car4 so users who have the TCDS that's says "wood prop..." Can just bolt on and go?"

    The PA-22 and PA-200 TCDS both specify a fixed pitch metal propeller with a Lycoming O-320.

    The only engine option that allows for a wooden prop is the Lycoming O-290 and that is limited to a maximum diameter of not over 74 inches.

    The only way I can see for a 80" wood prop on an O-320 would be via STC. Unfortunately.


  10. #10

    Join Date
    Feb 2010
    Location
    Eufaula, OK
    Posts
    404
    Post Thanks / Like

    Default Re: Sensenich W80CM8 a worthy alternative to Borer 80"?

    Quote Originally Posted by dhillier View Post
    ...The only way I can see for a 80" wood prop on an O-320 would be via STC. Unfortunately.

    Field approval. Slow process but it can be done. It may require flight testing and will require a flight manual supplement.
    "Good judgement comes from experience, and experience comes from bad judgement." - Fred Brooks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •