Results 1 to 11 of 11

Thread: Location of inspection cover grommets

  1. #1

    Join Date
    Feb 2010
    Location
    Massachusetts
    Posts
    23
    Post Thanks / Like

    Location of inspection cover grommets

    I am working on covering the fuselage of a J3/PA11 and need a location for the jack screw yoke inspection cover grommets. I have a drawing showing the grommet centered 31 inches forward of the tail post. The jack screw looks to be 30 inches forward of the tail post and that is where my old inspection panel grommets was located. What is the correct location for this panel? Thanks, Harry

  2. #2
    mike mcs repair's Avatar
    Join Date
    Aug 2004
    Location
    chugiak AK
    Posts
    11,773
    Post Thanks / Like
    use the cover plates that you intend to screw on to locate the grommets... make sure yoke is square to tail post first

  3. #3
    skywagon8a's Avatar
    Join Date
    Mar 2008
    Location
    SE Mass
    Posts
    11,993
    Post Thanks / Like
    You did save the fabric which you tore off didn't you? When recovering a plane you keep the old fabric just for the purpose of locating these items. When done, you throw out the old stuff.
    N1PA

  4. #4

    Join Date
    Feb 2010
    Location
    Idaho
    Posts
    290
    Post Thanks / Like
    Quote Originally Posted by FlatSideShovel View Post
    I am working on covering the fuselage of a J3/PA11 and need a location for the jack screw yoke inspection cover grommets. I have a drawing showing the grommet centered 31 inches forward of the tail post. The jack screw looks to be 30 inches forward of the tail post and that is where my old inspection panel grommets was located. What is the correct location for this panel? Thanks, Harry
    Pierce has grommet diagrams.

  5. #5
    Steve Pierce's Avatar
    Join Date
    Mar 2002
    Location
    Graham, TX
    Posts
    21,793
    Post Thanks / Like
    Piper drawing shows 31". People make their own custom inspection covers a lot of times. The Super Cub I am assembling now I center the jack screw carry through and used the original inspection plate to figure out where to place the grommets. Using the 31" in the past I normally end up making a new inspection cover.

    This is a picture from the factory in the mid to late 70s.
    Click image for larger version. 

Name:	98940011.jpg 
Views:	1901 
Size:	533.8 KB 
ID:	27779
    Attached Files Attached Files
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers
    Thanks bfortuin, phdigger123 thanked for this post

  6. #6
    ddriggs's Avatar
    Join Date
    Feb 2018
    Location
    Ak
    Posts
    5
    Post Thanks / Like
    Does anyone have the drawing for the wing inspection grommet locations?

  7. #7

    Join Date
    Apr 2009
    Location
    AK
    Posts
    272
    Post Thanks / Like
    .
    Attached Files Attached Files
    Thanks phdigger123 thanked for this post
    Likes Steve Pierce liked this post

  8. #8
    Steve Pierce's Avatar
    Join Date
    Mar 2002
    Location
    Graham, TX
    Posts
    21,793
    Post Thanks / Like
    PDFs get distorted when uploaded here. I can email you the same drawing if needed. steve@pierceaero.com
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers

  9. #9
    flybynite's Avatar
    Join Date
    Oct 2004
    Location
    Eagan, Minnesota
    Posts
    421
    Post Thanks / Like
    Steve, do you still make the grommets in aluminum? Interested in a set for a -12.

    Wayne

  10. #10
    skywagon8a's Avatar
    Join Date
    Mar 2008
    Location
    SE Mass
    Posts
    11,993
    Post Thanks / Like
    Quote Originally Posted by flybynite View Post
    Steve, do you still make the grommets in aluminum? Interested in a set for a -12.

    Wayne
    It's easy to make your own. Most any aluminum sheet will do. Try to avoid the soft stuff.
    N1PA

  11. #11
    KJC's Avatar
    Join Date
    Jul 2007
    Location
    Clear Lake, MN
    Posts
    355
    Post Thanks / Like
    When you do the one for the jackscrew yoke, make sure the top edge is parallel to the upper wood stringer. It will look like it’s tilted aft just slightly in the aft rear corner. Look at the above picture. Top edge parallel to the stringer. Remember the yoke moves in an arc not straight up and down. If you do it perfectly vertical, you’ll get to make a custom cover. ��

    Also, if you did an aft metal belly pan, you can delete the two round covers.
    Last edited by KJC; 01-19-2022 at 09:07 AM.
    PA-12 N418BS

Similar Threads

  1. Fuselage Inspection Ring Location
    By tcraft128 in forum Tips and Tricks
    Replies: 2
    Last Post: 10-19-2012, 11:03 AM
  2. Inspection Cover/window location Map
    By Fortysix12 in forum Cafe Supercub
    Replies: 2
    Last Post: 02-13-2009, 06:14 AM
  3. inspection cover grommets
    By jr.hammack in forum Modifications
    Replies: 1
    Last Post: 02-12-2007, 07:31 AM

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
  •