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29 = Shortest Take-off

Proposal from

Paap Kõlar / Estonia

Proposal title

Shortest Take-off

Existing text


New text

Option a) Replace S10 An 4, 3.C4 (Short takeoff over a fence)


Option b) Add to S10 An 4 section 3 as a new number at the discretion of the S10 Editor

Shortest Take-off


To take off in as short distance as possible.

This task is intended to be included as a small element of another task.


Takeoff permission is granted after the pilot has indicated he is ready to take off.

The maximum distance on the ground, from where the pilot’s feet or aircraft wheels have been since the start signal, to where the pilot’s feet or aircraft wheels permanently leave the ground will be measured and scored. (permanently is defined as aircraft is airborne for more than 10 sec.)

Special rules

- There will be time and distance limits established at briefing according to the weather conditions.

- If not otherwise briefed, the time limit for this task is 1 min.

- No restrictions on number of attempts within the time limit.

- No penalties for the wing touching the ground on each attempt.

- If not otherwise briefed, the distance limit is 30 m.

- Exceeding either time or distance limits will be signaled with red flag and scored zero.


Pilot score = 100 x (Smin / Sp)

Smin = The shortest distance in metres for a takeoff.
Sp = The pilot’s takeoff distance.

The scoring can be done separately or may be integrated into the overall task scoring as S.

If the pilot scores 0 then the penalty shall be no more than 10% of the overall task score.


Marking pilot’s footsteps or wheels on the ground can be a tricky task for marshals. Using 2-3 m long rods (sail battens, fishing rods or similar) has proven to be effective to help in fixing visual observation results on the ground before they are measured.

Alternative methods can be developed and used for more precise measurements.


Practical and useful, fun to follow for spectators and for other competitors as well.


This task has been tested in several Baltic and Finnish competitions at 2010, 2011 and 2012 seasons with great success as a small entry element of an integrated task.

Added by Paap KÕLAR Last edited by Rob HUGHES on 26 Sep, 2012 18:57. Quick links: or 29 = Shortest Take-off
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