Superlight, steerable cruciform canopy
The new DIAMONDcross ST from Charly presents three main innovations:
It has a defined forward speed in diagonal direction with the effect of a significantly reduced sink speed. This results on the one hand in a higher aspect ratio compared to conventional cruciform canopies, those propulsion mainly takes place towards one side, and on the other hand in the asymmetrical air flow of the convex sides of the DIAMONDcross canopy, thereby receiving an ascending forced optimised profile.
The horizontal movement, which is typical for every modern round canopy and cruciform canopy, can be steered for the DIAMONDcross ST in a certain direction, if required. Obstacles like e.g. power lines can thus be avoided and an emergency landing field can be precisely approached with a glide ratio of ca. 1:1.5. There are no disadvantages for the DIAMONDcross ST compared with conventional cruciform canopies.
The DIAMONDcross has different line lengths which has the effect that the strips of the canopy don't lie on top of each other when packing the canopy. This diversification causes an easier air inlet when opening and thus an increased opening speed compared to conventional cruciform canopies. The packing of the DIAMONDcross is not more time-consuming or more complex than for a normal cruciform canopy.
The superlight DIAMONDcross ST thus combines the low packing effort of round- and cruciform canopies with the controllability of Rogallo rescue systems. For the DIAMONDcross, there is no risk of a “down plane” immediately after release, that is typical for Rogallo rescue systems even after pre-braking if they open with the top downwards.
The concept of the DIAMONDcross works without pre-braking and therefore the system remains very easy to handle and is reliable.