3.4. Rigid tandem spreaders
51
Risers
Reserve
Pilot
Passenger
3.5. Brake lines
The brake lines connect to the trailing edge via a series of subsidiary lines. Because of their positions
they are more easily scuffed than other lines on your glider, so they should be checked more
frequently.
The main brake lines run through pulleys connected to the rear risers. The brake handles are tied to
the main lines and conveniently positioned magnetic buttons attach them to the risers when not in use.
This should prevent them from twisting and tangling.
The brake lines are tested and adjusted at the plant. They are marked by the inspector and have been
flown by test pilots. The markings serve as a default setting from which an individualized setting
should be made. We recommend that the brake lines be adjusted to the actual pilot at a practice area.
The points should be followed:
Ensure both main lines are of equal length.
If brake handles have been removed for any reason, check that the line is still routed through the
pulley when it is replaced.
When brake handles are released in flight the brake lines should be slack. There should be substantial
“bow” in them and absolutely no deformation of the trailing edge.
Changes made in small steps but still maintain the possibility for full travel from trimmed speed to stall.
We recommend a minimum of 10 cm of free play between the brake release position and the start of
deformation on the glider. This will prevent the trailing edge from being deformed when using the
speed system.
In the unlikely event of a brake handle becoming detached, or a brake line snapping in flight, the glider
can be flown by gently pulling the rear risers (D-risers) for directional control.
As you can well imagine, there are several knots that can be used to secure the line to the
control handle, however as pictured below is Firebirds recommendation.
