Martinsyde S1 (oz15157)


Martinsyde S1 (oz15157) by Tom Hallman 2015 - plan thumbnail

About this Plan

1914 Martinsyde S1. Free flight peanut scale model WWII biplane for rubber power Wingspan 13 in.

See Tom Hallman's excellent maxfliart channel on YouTube at for lots more detail, a start to finish photo build log, and some test flight video. Also links to the free plan PDF from there.


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Martinsyde S1 (oz15157) by Tom Hallman 2015 - model pic


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User comments

I am a great admirer of Tom Hallmans skills but his plan is a little inaccurate. Those cabane struts should be vertical not slanted forward. I know this because I made the same error on my larger compressed air powered S.1 which was scaled from an inaccurate R/C plan by Peter Rake! Tom Berrymans plan gets it right and you need to know this stuff if entering scale comps.
Peter Rea - 09/03/2024
And if the 3-view shown on the plan was the one used for the model, then it would be accurate. We all know that every 3-view is an accurate depiction of the actual aircraft, right. It would be nice to see the 3-view Mr. Berryman used for his model. I have only seen one drawing where the cabanes were clearly shown as vertical.
Douglas Babb - 09/03/2024
Well... I'm just gonna point out that in the photo in the Wikipedia link, presumably of an actual full size example, the struts do appear to be slanted forward (keep in mind the plane is sitting on the ground at, uh, what, some 20 degree angle, so actually they look nearly vertical upon initial look). So... do we believe Peter or the photo?
RC Yeager - 09/03/2024
Of course, Peter was referring to the "cabane" struts while I'm referring to the "interplane" struts. It wasn't until almost 5 hours later while doing something completely unrelated that I suddenly realized this and came back to Oz to check, and of course... So... never mind! :-)
RC Yeager - 10/03/2024
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