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Author Topic: Figuring density of balsa sheets.  (Read 1132 times)

Offline Jim Thomerson

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Figuring density of balsa sheets.
« on: September 05, 2009, 10:09:28 AM »
I just figured something out which is probably already well known.  I was looking at a chart of balsa densities and weights for various thicknesses of 3 in x 36 in sheet balsa.  I realized that weight of the sheet in oz divided by the thickness of the sheet in inches gives the density in pounds per cubic foot.  For example, 1/8 sheet weighing 3/4 oz is 6 pound balsa.  1/2 in sheet weighing 5 oz is 10 pound balsa, etc.  Easy to do while weighing sheets at the Midwest balsa stash in the local Ace hardware. H^^

Offline Neville Legg

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Re: Figuring density of balsa sheets.
« Reply #1 on: September 06, 2009, 02:47:03 AM »
Is Midwest balsa expensive in the US? We have one of those Hobbycraft stores here in England, a huge store selling every kind of hobby stuff you can think of!
The price of their Midwest balsa was ridiculously expensive! I told a punter who was looking at the wood to pop to the other side of town to my local model shop, where the balsa was a third of the price!

Cheers      Neville
« Last Edit: September 06, 2009, 05:31:17 AM by Neville Legg »
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Offline Ralph Wenzel (d)

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Re: Figuring density of balsa sheets.
« Reply #2 on: September 06, 2009, 04:37:53 AM »
Midwest balsa is truly "Construction Grade", suitable for houses or ocean-going tankers. And  you can get much better prices on lighter wood from Balsa USA, Lonestar, and Nosen.


(Too many irons; not enough fire)

Ralph Wenzel
AMA 495785 League City, TX

Offline Neville Legg

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Re: Figuring density of balsa sheets.
« Reply #3 on: September 06, 2009, 05:37:12 AM »
This is the only time I've seen Midwest balsa here in the UK, as you say, its very heavy stuff and far too expensive!
We have an Australian supplier of Balsa here, very good quality, and price!


Cheers       Neville
"I think, therefore I have problems"

(not) Descartes

Offline john e. holliday

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Re: Figuring density of balsa sheets.
« Reply #4 on: September 06, 2009, 07:42:59 AM »
Not wanting to make an order to Lonestar, I went to the local arts and crafts store.  You get what aqvailable and be happy if you are in a hurry.  The local hobby is almost out of balsa wood.  So next time building gets put on hold til I get an  order in.  DOC Holliday
John E. "DOC" Holliday
10421 West 56th Terrace
Shawnee, KANSAS  66203
AMA 23530  Have fun as I have and I am still breaking a record.

Offline Neville Legg

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Re: Figuring density of balsa sheets.
« Reply #5 on: September 06, 2009, 12:45:11 PM »
I usually get my balsa when  I go to model events, there is one  next weekend at Old Warden aerodrome, as there is C/L, free-flight, and radio flying going on, there are lots of model shops in tents with good quality balsa and hard to come by bits and pieces, so I stock up then!

Cheers       Neville
"I think, therefore I have problems"

(not) Descartes


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