Comments on: Balsa

By: sherono

sherono — Sat, 14 Oct 2023 15:39:45 +0000

Historical Society I belong to obtained historically significant pair of skis – appx 130+ years old. Wondering if there’s an oil to condition/preserve them to use? Thank you.

By: Robert

Robert — Thu, 21 Sep 2023 22:32:07 +0000

In reply to Wyatt Schmidt. Typically 2 or 3 balsa trees per hectare of natural SA rain forest, whereas plantations easily manage 1,000 balsa trees/hectare in a monoculture with less than 10 years planting to harvest. 60% + (volume wise) of balsa in commerce is plantation grown as of 2023.

By: victor

victor — Tue, 06 Oct 2020 23:24:05 +0000

PAULOWNIA WOOD
Paulownia has been thoroughly tested and found to have a higher strength to weight ratio than Balsa!
Auburn University tested the strength of 18 lb p/cubic ft. Paulownia against Balsa, with an average weight of 10 lbs p/cubic foot.
https://drive.google.com/file/d/17XKHvjwVq5jCpDoS7fKRG5tgADbi8z7i/view?usp=sharing

By: Wyatt Schmidt

Wyatt Schmidt — Fri, 18 Sep 2020 23:44:14 +0000

Does anyone know how common balsa trees are in South America? For example would 5 out of 100 trees in a rainforest be balsa or something like that?

By: Eric

Eric — Sat, 18 Apr 2020 10:36:59 +0000

In reply to John Hartman. Yes, there is a wide variation in balsa hardness. Most of the stuff in hobby stores for model airplanes and the like tends to be the very softest pieces.

By: John Hartman

John Hartman — Fri, 17 Apr 2020 15:38:40 +0000

Does balsa wood have varying hardnesses? I watched a video from the Rapala company in finland . They said their balsa had different hardnesses. John

By: Eric

Eric — Wed, 15 Apr 2020 07:25:48 +0000

In reply to Amali. Eric Meier, first published April 9, 2009

By: Amali

Amali — Tue, 14 Apr 2020 12:16:05 +0000

hello!

Who is the author of this article and when was it published? thank you

By: Eric

Eric — Thu, 02 Apr 2020 03:00:37 +0000

In reply to Raul. No, it is not isotropic. MOE is almost universally listed as longitudinal value unless otherwise noted in literature.

By: Raul

Raul — Wed, 01 Apr 2020 17:58:00 +0000

but is balsa isotropic? Why I can find only one Elastic modulus? Is this longitudinal or transversal?