Results 1 to 12 of 12

Thread: Cub headerless tank systems

  1. #1

    Join Date
    Sep 2003
    Posts
    6,526
    Post Thanks / Like

    Cub headerless tank systems

    Anybody know what CC and Atlee had to do to certify the headerless fuel systems? Is it something as simple as putting an extra port on the front of each tank?

  2. #2
    Gordon Misch's Avatar
    Join Date
    Dec 2003
    Location
    Toledo, Wa (KTDO)
    Posts
    3,252
    Post Thanks / Like
    Bob, I believe some -12's came stock headerless, mine being one. Left tank has a forward port. Right tank does not. My Atlee 30 gal tank STC requires same, placarded left tank for takeoff and landing.
    Gordon

    N4328M KTDO
    My SPOT: tinyurl.com/N4328M (case sensitive)

  3. #3
    www.SkupTech.com mike mcs repair's Avatar
    Join Date
    Aug 2004
    Location
    chugiak AK
    Posts
    10,072
    Post Thanks / Like
    normal right cub tank needs to add a front outlet fitting... Atlee's come with it already installed...

    the headerless STC is a whole separate issue....

  4. #4
    www.SkupTech.com mike mcs repair's Avatar
    Join Date
    Aug 2004
    Location
    chugiak AK
    Posts
    10,072
    Post Thanks / Like
    Quote Originally Posted by Gordon Misch View Post
    Bob, I believe some -12's came stock headerless, mine being one. Left tank has a forward port. Right tank does not. My Atlee 30 gal tank STC requires same, placarded left tank for takeoff and landing.
    yes, header tank was an OPTION, on a -12.... no serial number range... just and option that could be installed...

  5. #5
    Gordon Misch's Avatar
    Join Date
    Dec 2003
    Location
    Toledo, Wa (KTDO)
    Posts
    3,252
    Post Thanks / Like
    Thanks for clarifying that for me, Mike.
    Gordon

    N4328M KTDO
    My SPOT: tinyurl.com/N4328M (case sensitive)

  6. #6

    Join Date
    Sep 2003
    Posts
    6,526
    Post Thanks / Like
    Reason I asked - J3 with two wing tanks and no header tank has been flying for 16 years with a 337 signed by an IA. It does reference a couple STCs, but the tank STC does not specify removing the nose tank, and they even got the quantity wrong. Passes annual every darn year. Not my airplane, and so far not my problem.

    Workmanship is superb, and never any problems with fuel flow. It is being purchased by friends, and I need to do some serious arm-twisting with my favorite PMIs.

  7. #7

    Join Date
    Apr 2009
    Location
    AK
    Posts
    97
    Post Thanks / Like
    The drawing I have for factory -12 fuel system has rear outlets only and no header- a recipe for unporting in a descent, as I found out...
    Likes mike mcs repair, moneyburner liked this post

  8. #8
    skywagon8a's Avatar
    Join Date
    Mar 2008
    Location
    SE Mass
    Posts
    8,915
    Post Thanks / Like
    Quote Originally Posted by bob turner View Post
    Reason I asked - J3 with two wing tanks and no header tank has been flying for 16 years with a 337 signed by an IA. It does reference a couple STCs, but the tank STC does not specify removing the nose tank, and they even got the quantity wrong.
    Bob, There are four Type Certificates for J-3s. Which one applies to "your" J-3? A-691 is for the J-3 and PA-11. Perhaps "your" J-3 has a PA-11 fuel system?
    N1PA

  9. #9
    Steve Pierce's Avatar
    Join Date
    Mar 2002
    Location
    Graham, TX
    Posts
    18,306
    Post Thanks / Like
    Fuel flow tests in all configurations.
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers
    Likes wireweinie liked this post

  10. #10
    d.grimm's Avatar
    Join Date
    Oct 2004
    Location
    toledo, oh
    Posts
    470
    Post Thanks / Like
    Bob,
    I did a dual tank, headerless fuel system in my Vagabond by FA if you would like a copy.
    I believe it’s in the files of ShortwingPipers.org
    Dave

  11. #11

    Join Date
    Sep 2003
    Posts
    6,526
    Post Thanks / Like
    Yes, that would help. I will look. This is an A-691 Cub with PA11 components. It has been suggested that anything in the type certificate can be altered with a log entry. But they filed 337s anyway. Not field approvals, just "We did this. IAs can do stuff."

    The problem with that is there is an AD on the PA11 fuel system requiring a header tank.

  12. #12

    Join Date
    Sep 2003
    Posts
    6,526
    Post Thanks / Like
    Joined, and found your 2010 thread, but no comment on approval. Took you a year?

Similar Threads

  1. Headerless
    By Beaverpilot in forum Experimental Cubs
    Replies: 7
    Last Post: 10-05-2018, 06:44 PM
  2. STC # for CC headerless fuel system?
    By behindpropellers in forum Modifications
    Replies: 1
    Last Post: 11-05-2004, 01:58 PM
  3. Headerless Fuel System
    By murph in forum Modifications
    Replies: 29
    Last Post: 02-14-2003, 12:59 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
  •