- Jun 7, 2019
- Bryan, Texas
- Cessna 140, Stinson 108-1, Culver V, Parsons Trainer
- Total Flight Time
- 1000 hours
I have found a range of torque values for the 5000 series Aluminum tubing used in certified production aircraft but nothing on the softer 3/8” 3003. It seems the normal torque values are 1/2 that of the harder 5000 series but this had been verbal and no written mention or chart found when searching under 3003 or Versatube. I have initially torqued my fittings to 85 inch pounds.