Here’s some information I got from Victor I. Smedstad:
Got Squirrel from the Internet a month or so ago. I have been trying to build model airplanes since about 1941 with a nickel or dime Comet Curtis Robin. Most of my so called scale attempts flew like rocks, so much of what I have built has been flyers. For the past 7 years I have been volunteering three days a week at an elementary school in Bremerton, Washington, adjoining the Naval Base. I wanted to work on flying models with kids, but until Squirrel, they all required Xacto or razor blades and that meant risk of injury which could only be minimized with one adult to one kid, a ratio I could not come even close to. So no building.
Then Squirrel!!
After my third Squirrel, I made some modifications, none of which modified the basic design. A fifth grade teacher was willing to work with me and I found that most shoe boxes were 11 inches or more in width, but few were as much as 12 inches in width. So the first modification was to reduce the wing span to 11 inches.
Because time was a problem, and fifth graders are not too good at measuring, I made a Sharpie mark at the middle of the wing leading and trailing edges, and at the middle of the horizontal stab LE and at the middle of two 2inch ribs for the end ribs.
In addition I redrew the instructions as plans on my $10 CAD program. Found out later that fifth graders have difficulty dealing with plans, but could do what they were told to do.
I tried it out first on a fourth grader, just one. As tying the tooth pick on with thread was more that kids could do, I eliminated the thread and added a 3/8 inch X 3/16 piece to butt up against the tooth pick.
I then got a group of five kids who were willing to stay after school and used two sessions to make sure the white glue had time to dry thoroughly.
They then acted as classroom experts when we then had the remaining 20 kids do the Squirrel.
Attachments: First, a shot of the classroom: Flegel class 00. Because there was no way we could get 25 kids flying squirrels in the gym, we flew outside. Flegel class 06. And all 25 flew: Flegel class 17.
I am impressed as were the kids.
Victor I. Smedstad
