proprietary "RotoDraw" tube-forming process was developed
and perfected by LeFiell to support the quality standards required
to manufacture nozzle coolant tubes for liquid fuel rocket engines.
This tapered draw process can produce tubing configurations from
.080" - 2.00" diameter and from .006" - .030"
wall over lengths of up to 10-feet.
Company has the distinction of being the sole supplier of thrust
chamber tubes for every major liquid engine produced in the United
States and Japan. For example, the Space Shuttle Main Engine
Program specifies a continous taper over the entire 10-foot length
of each tube. The tube's largest diameter is approximately
.300 +/- .001" with a corresponding .016 +/- .001" wall
thickness which tapers down to a final diameter of .90 +/- .001"
with a .007 +/- .001" wall thickness.