• The Biplane Forum is a large global active community of biplane builders, owners and pilots. From Pitts to Skybolts, to older barnstormers, all types are welcome. In addition to our active community, our content boasts exhaustive technical information which is often sought after for projects and maintenance. This information has accumulated over the 12+ years the forum has been in existence.

    The Biplane Forum is a private community. Subscriptions are only $29.95/year to gain access to this great community and unmatched source of information not found anywhere else on the web. We are also a great resource for non biplane users, since many GA aircraft are built the same way (fabric and tube construction).

  • If you have bought, sold or gained information from our Classifieds, please donate to Biplane Forum and give back.

    You can become a Supporting Member which comes with a decal or just click here to donate.

Christen Wobble Pump


Active Member
Jan 23, 2010
Reaction score

Hi All,

I have a Pitts S1-S(Ultimate Fuse) with Spar Craft wings - to be repaired and re-assembled.

Planning on putting it on a diet. I have identified the Christen Wobble pump as something that's too heavy for its purpose/role and subject to removal - I'll go with an elec backup.

Unions fitted for Main and Wing tank.

Does anybody haveneed for one?

Price negotiable, shipping at buyers expense. Would be from Adelaide in South Australia.

Make an offer.

John McFarlane

Moved to classified by moderator. Please include an asking price.


Latest posts