Results 1 to 12 of 12

Thread: Nose Bowl for a 12

  1. #1
    skukum12's Avatar
    Join Date
    Feb 2004
    Location
    The Last Frontier
    Posts
    1,343
    Post Thanks / Like

    Nose Bowl for a 12

    I am replacing my nose bowl for various reasons. I have a few questions here.

    With my lightweight B&C starter do I still need a starter hole?

    I see multiple different sizes available, is there a correct size for a PA-12 with an 320?

    Wag sells an "original" 12/14 bowel, will this work with my 320?

    As usual, thanks for all the advice
    "Always looking up"

  2. #2

    Join Date
    May 2008
    Location
    Portland, Oregon
    Posts
    78
    Post Thanks / Like
    I have what I believe to be a stock bowl with an 0-320 (long mount). It's pretty beat up so I bought one of the fiberglass piper nose bowls from ACS to have a look at. I'm returning it. It's poorly made and not really the right shape. I don't know if the Wag Aero part is the same. Several people have recommended Carbon Concepts to me. About $600 plus shipping for a hand made carbon fiber part. Not PMA, but probably not hard to get it installed depending on your IA. I have not shelled out the $1700 for the Univair part. I have the skytec ultra light weight starter in my 12 and it needs a hole in the bowl.
    Thanks skukum12 thanked for this post

  3. #3
    skywagon8a's Avatar
    Join Date
    Mar 2008
    Location
    SE Mass
    Posts
    12,540
    Post Thanks / Like
    Quote Originally Posted by skukum12 View Post
    ... sells an "original" 12/14 bowel, will this work with my 320?
    Use caution and due diligence when you purchase stuff from this source. Be certain it is an FAA-PMA approved part with documentation. Too often they use the words "original" or some other description which implies approved, when in reality it is not.
    N1PA
    Thanks skukum12 thanked for this post

  4. #4

    Join Date
    Sep 2004
    Location
    Illinois & Wisconsin
    Posts
    896
    Post Thanks / Like
    I, too, have a B&C starter and alternator on my O320/340 12. I bought my original design PA12 nose bowl (without the starter hole) from Univair before their list prices quadrupled. It was flawless and beautiful. The hole for starter is unnecessary.

    Mine was an all new parts project, so I didn’t have to worry about lining up old parts as appropriately suggested in the next post by Stewart.
    Last edited by Paul Heinrich; 03-20-2022 at 08:27 PM. Reason: Bad auto-correction
    Thanks skukum12 thanked for this post

  5. #5
    stewartb's Avatar
    Join Date
    Oct 2012
    Location
    Wolf Lake, AK
    Posts
    7,784
    Post Thanks / Like
    You’ll need to match your old one exactly or you’ll need to re-make some or all of the other 4 cowl parts.
    Thanks skukum12 thanked for this post

  6. #6
    skukum12's Avatar
    Join Date
    Feb 2004
    Location
    The Last Frontier
    Posts
    1,343
    Post Thanks / Like
    $1700+ for a nose bowl makes my skin crawl, I don't care how nice it is. I gave my previous bowl away, it was absolutely loaded with bondo and heavy.

    I replaced it with a two piece split vertically. Not once have i needed to take it apart to save time. I figure that if I am going that deep into engine maintenance, the prop is coming off anyway.

    The two piece looks terrible with all the fasteners, the thick rear facing flange rubbed the ring gear, the area where the halves meet started rubbing the back of the prop(caught this during a caribou hunt and had to saw a chunk out with my Leatherman)and there is not enough clearance for a backing plate for the spinner.

    If I had a beer in my hand I would be crying in it.
    "Always looking up"

  7. #7

    Join Date
    Sep 2004
    Location
    Illinois & Wisconsin
    Posts
    896
    Post Thanks / Like
    What does Javron use? Does anyone know how much they charge for a nosebowl? Would that be a less expensive option? I haven’t heard anyone complain about the quality of their products, but I have heard lots of negative press about Wagaero parts.

    Does anybody still think they can build a 12 or an 18 from the ground up, using all new parts, for less than $150G?

  8. #8
    skywagon8a's Avatar
    Join Date
    Mar 2008
    Location
    SE Mass
    Posts
    12,540
    Post Thanks / Like
    Keep in mind when you have a type certificated airplane and you find a fiberglass or/and I assume also carbon fiber cowling components, the resins used in the layup must be able to meet FAA's inflammability requirements. I can't quote the specific FAR, nor whether it was a fire proof or fire resistant requirement. I do recall performing flammability tests with a blow torch on the Twin Bee cowls for certification. We had to add a third chemical to the resin mix.

    Make certain the supplier provides documentation approval of this.
    N1PA

  9. #9
    Gordon Misch's Avatar
    Join Date
    Dec 2003
    Location
    Toledo, Wa (KTDO)
    Posts
    4,124
    Post Thanks / Like
    Dunno - seems if the nose bowl catches fire there are probably other, more interesting problems at hand. I know - there's the regs. But still couldn't resist.
    Gordon

    N4328M KTDO
    Likes akavidflyer, Broncoformudv liked this post

  10. #10
    AZinAK's Avatar
    Join Date
    Apr 2017
    Posts
    76
    Post Thanks / Like
    Quote Originally Posted by Paul Heinrich View Post
    What does Javron use? Does anyone know how much they charge for a nosebowl? Would that be a less expensive option? I haven’t heard anyone complain about the quality of their products, but I have heard lots of negative press about Wagaero parts.

    Does anybody still think they can build a 12 or an 18 from the ground up, using all new parts, for less than $150G?
    I'm also curious about the quality of the Javron nose bowls. I need to redo everything forward of the firewall forward as far as cowlings/nose bowl at some point unfortunately.

  11. #11
    stewartb's Avatar
    Join Date
    Oct 2012
    Location
    Wolf Lake, AK
    Posts
    7,784
    Post Thanks / Like
    The only limitation for a replacement nose bowl would be re-using the other cowl parts. Pitch the old, buy a Suoercub nose bowl, hang it from new channels, and make the top, bottom, and sides. Make it better than original
    Likes AZinAK liked this post

  12. #12

    Join Date
    Jul 2012
    Location
    Montana
    Posts
    534
    Post Thanks / Like
    I put on a light weight starter and covered up the hole on my original pa12 nose cowl, where it then punched a new hole I pre-installed a smaller hole. So I guess it depends on how you have your cowling set. Can't you get a 2 piece carbon fiber nose cowl from ruppert or javeron, modify it a bit and have it qualify as a one off owner built part
    Staying alive in an airplane has a lot more to do with mastering ourselves than mastering the aircraft.

Similar Threads

  1. Nose bowl
    By cgoldy in forum Experimental Cubs
    Replies: 6
    Last Post: 10-30-2020, 11:59 AM
  2. Nose Bowl
    By Roger Peterson in forum Cafe Supercub
    Replies: 6
    Last Post: 01-02-2012, 02:59 PM

Bookmarks

Bookmarks

Posting Permissions

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