4130 / .049 tube buckling chart attached. This came from Paul's site.

Bobby

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Wednesday, July 22, 2020 11:23 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Engine Mount specs


Hi All members:
The 4130 chromemoly seamless pipe for the engine mount.
What is the appropriate size for building a engine frame, as the included drawing of Paul L. ( copyright P.L ) The outside diameter and wall thickness ?
7/8 Inch OD x 0,069 “ Wall thickness ?
or 0.120 W

1 inch x OD ?
Cant find any specifications for such a design.

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