Laminated Wood Spars

The basic difference is that in plywood the grain of alternate layers is crossed in general at right angles whereas in laminated wood it is parallel.
Laminated wood spars. Early aircraft used spars often carved from solid spruce or ash. Cutting it into laminations on a band saw randomizing the plies scarfing and gluing them back together makes an overall stronger assembly. Share to twitter share to facebook share to pinterest. Several different wooden spar types have been used and experimented with such as spars that are box section in form.
Laminated spars use thinner sections of wood which. The strength of a well designed and properly prepared wood splice joint is provided by the. A laminated spar will be stronger. It is stronger but less flexible than a piece of solid wood of the same type and size.
Laminated spars are easy to work with it s no different than solid spars. Laminating a wood spar posted by jon ferguson at 10 33 am. Let s build a wood plane. Join jon as he builds a wood airplane.
Newer post older post home. Using a laminated spar incurs no weight penalty over a solid spar. Avoid large knots and white wood fabrication of laminated spars all work should be done or supervised by adult leaders and or skilled craftsmen. Laminated wood is much more resistant to warping than solid wood making it a good substitute for solid wood components.
Laminated wood the lamination process differs from the plywood process in that each layer of laminated wood is bonded with the grain running parallel with each other. Trestle legs ledgers. How i laminate spars for the empennage and some thoughts on how i came to choose this design of plane. The development of these products as well as particleboard described in the next section was made possible by the.
And laminated spars laid up in a jig and compression glued to retain the wing dihedral. Laminated wood bending duration. Building a spar epoxy spar how to laminate a wood spar. As per the troop kit materials needed.
Where is information found concerning acceptable species substitutions for wood materials used in aircraft repair. Laminated wood spars may be substituted for solid rectangular wood spars. Plywood and laminated wood are both made of layers laminae of wood glued together. Solid wood has changes in grain direction and enclosed defects by its nature.
If the same quality of wood is used in both.