O.S. Flex FS70-91S/70U/FL70/FS/81A 120mm 1111A

Tower Stock# LXCB22  •  Manufacturer Stock# 72108100
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Regularly Purchased Together
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Notes from our tech department:
This Flexible Tubing Replaces your Existing Header and Allows you to
Re-Route your Silencer Farther Away from the Engine or Cowl.
This ONLY Fits the Following Engines:
FS-90 (old), FS-120 (old), FS-70 Surpass, FS-91 Surpass, FT-120 II, FT-160
and FS-91 Surpass II.


Uses the silencer that came with the engine (it replaces the header)
Comes in 2 lengths 120mm (this one) and 240mm (OSMG2672)
Reroutes the Exhaust to a More Convenient Location


One Flexible Exhaust Tube
Two Pipe Nuts


Length (neglecting threaded part): 120mm (4.72)
Length (overall): 143mm (5.63)
Thread Size on Nut: 10.5mm
Diameter of Flex Pipe: 12mm (.47)


This pipe should NOT be bent in a diameter that is less than
4 times the radius of the pipe (44mm or 1.73)
Bends in the pipe should be as far as possible AWAY from the
threaded part of the pipe. Final adjustment should be made in steps
of only 2-3 at a time. Repeated adjustment to alter the shape
of the pipe will weaken the pipe and cause it to break.
It is recommended that you use the EX exhaust headers with this
flex pipe if you need a bend right at the exhaust outlet on the
cylinder head.
These are available in a within fuselage configuration
(OSMG2624) and a outside fuselage configuration (OSMG2625).

JBN 3.28.94



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