Flexcom > Examples > A - Top Tensioned Risers > A01 - Deepwater Drilling Riser > Input Data

The table below describes the properties of the telescopic joint.

Telescopic Joint Properties

General Properties:
Normal Drag	1
Normal Inertia	2
Outer Barrel Properties:
Length	70 ft
Length to Slip Ring	60 ft
External Diameter, Do	26.25 in
Internal Diameter, Di	24 in
Inner Barrel Properties:
Length	35 ft
External Diameter, Do	21.5 in
Internal Diameter, Di	19.5 in

Note that the inner barrel axial stiffness is not calculated from the above geometric properties. Instead it is assigned an arbitrarily low axial stiffness value so that it extends freely under axial load.