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SIGMA TANDEM SYSTEM OWNER’S MANUAL
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Section 3: Instructor Techniques • Chapter 3 - Freefall / Drogue-Fall 11301 - 00.00.0000
B. Anticipation:
The key to keeping control is being able to recognize a potential problem prior to it becoming a real problem.
Students sometimes do crazy things during the first few seconds after exit. Usually, after the initial shock of freefall
their eyes will reopen and they will attain their body position assisting stability. Immediately following the exit launch,
assess the student’s body position as you arch to maintain stability. If the student remains in the folded de-arch
position of the diving exit or attains a de-arched position after the exit launch, you may have to apply additional
control techniques to maintain heading and stability.
C. Manipulation:
One such control technique is to physically manipulate the students body into an arch. To do this reach around with
your arms and/or legs and pull him back into the correct position. Grab the arms only between the elbow and the
wrist. This makes it hard for the student to grab you. Hold this interlocked or bodylocked position until you have
ensured or regained stability. Manipulation should only be used as a last resort if the Tandem Instructor’s hard arch
is ineffective.
This technique must be used with caution as it increases the possibility that the student will grab your arms and
prevent you from pulling. There is simply no telling what a student might do if presented with an “earth-sky-earth-
sky” situation on his first jump.
DEPLOY DROGUE
The drogue may be deployed at any point during a freefall, from soon after exit to after Tandem terminal velocity (170
mph) is reached. It is recommended that if stable, the drogue be deployed in the first 5 seconds of freefall.
Recommended drogue jump scenario:
A. Exit aircraft above 7500' (2500m) AGL.
B. Ensure stability prior to deployment.
C. Drogue deployment.
A. Exit aircraft above 7,500' (2500m) AGL:
It is important to exit with sufficient altitude to deal with any potential problem ensuring main deployment by 4,500'
(1500m) AGL.
B. Ensure stability prior to deployment:
Be stable and face to earth. Be sure that the student’s body position is good enough to allow you to reach in and grab
the drogue without losing stability. If the student’s body position remains so bad that it causes a problem, FIX IT
before throwing the drogue.
We cannot emphasize this point enough: DO NOT USE THE DROGUE TO GAIN STABILITY. Be stable before the
drogue is thrown (unless there is no other alternative and altitude is getting low).
Using the drogue to get stable should be used only as a last resort since it is better than pulling the reserve while
unstable.