• Become a Subscribing Member today!

    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.

    The Biplane Forum is a private community. Subscriptions are only $49.99/year or $6.99/month to gain access to this great community and unmatched source of information not found anywhere else on the web.

    Why become a Subscribing Member?

    • 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.
    • We are also a great resource for non biplane users, since many GA aircraft are built the same way (fabric and tube construction).
    • Annual membership also comes with two BiplaneForum.com decals.

    Become a Subscribing Member and access the Biplane Forum in full!

    Subscribe Now

Left Wing V

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.


Creator of this place
Staff member
Lifetime Supporter
Jan 1, 2006
Reaction score
Austin, TX
<TABLE cellSpacing=0 cellPadding=5 align=right>

Keeping everything square...

All the spar fillers have now been glued onto the top of the wing. I cut them as flush as possible to the top of the adjacent ribs, then used a long sanding block to finish. The 1/4 inch ply fillet that goes on the spar at the I-strut location was a touch too proud for sanding, so I flushed that with a router.

Next I fitted the tip bow. To cut the tips off the ends of the spars, in order for them to marry up to the tip bow, I made a primitive compass from a length of 3/4 x 3/4at 21R radiuswith a nail one end located in the center of the rib, and a pencil attached to the other end, rotated it around, then markedon the sparsaccordingly.

It's a good idea to clamp in a square piece of lumber at the front of the rib [see pic at right]and at the tail, this stops the rib from flexing while fitting the bow - aslight out of square nose rib isn't the end of the world, but the rear has to be square because of the aileron bay.

I then drilled the I-strut holes using a jig I'd made for the right wing, see here

Finally, I built up the spar tips to the bow, ready for shaping when cured.

I-strut drill jig...

Tip filler...

Latest posts