Deutscher Hängegleiterverband e.V.
DHV
  • Deutsch

Equipment Portal

Atom 3 M
Sicherheitsklasse 2
Atom 3 M

Instability rating
Safety class 1 Safety class 2 Safety class 3 Safety class 4 Safety class 5
asymmetric collapse
course change
forward pitching
height loss
sink velocity
G-Force
Frontal collapse
course change
height loss
sink velocity
Spiral dives
G-Force
Sink velocity after 720°
Maximum sink velocity
Behaviour on brake release
course change after spiral dive exit
Height loss during recovery
Safety class 2
Pilot skill requirements:
Basic recovery training techniques learned in initial training.
Ongoing flight practice.

Glider characteristics
Launch preparations: easy
launch characteristics: balanced, climbs constantly, no guidance necessary, good feedback during inflation, no braking required, slows before zenith, control check simple, low takeoff speed
asymmetric collapse: canopy colllapses at high angle to leading edge, moderate dynamics, total course change 90-180°, (1), fast course change rate, moderate forward pitching 45-60°, (2), moderate height loss 30-39 m, (2), low sink velocity 10-14 m/s, (1), G-Force < 2,5 G, (1)
Frontal collapse: canopy collapses with high total collapse aera, moderate pitch backwards 30-45°, low pitch forwards <30°, low dynamics, no course change, (1), immediate automatic recovery, symmetric recovery, immediate return to normal airspeed, low height loss 20-29m, (1), low sink velocity 10-14 m/s, (1)
Spiral dives: moderate sink velocity increase, Low G-Force 3,0- 3,5 G, (1), Sink velocity after 720° <14 m/s, (1), Moderate maximum sink velocity < 18 m/s, (2), sink velocity increase < 6 m/s on brake release, (2), Course change 180-360° after spiral exit, (2), moderate height loss during recovery 30-60 m, (2)
B-Stall: normal force required, low pitch backwards <15°, low pitch forwards <15°, stable sink phase, immediate return to normal airspeed, 6-8 m/s, height loss on recovery 20-40 m
big ears: simple initiation, stable flight phase, immediate automatic recovery, Vsink unaccelerated 3-3,5 m/s, Vsink accelerated 4-4,5 m/s, Vunaccelerated 0-3 km/h less than trimspeed, Vaccelerated 3-5 km/h faster than trimspeed
Steering behaviour: agile, 85 cm brake travel range, very noticable brake pressure increasse, Late stall point, easily identifiable

Notes

Rating

Safety class 2

This class of paraglider react mildly to all of the following manoeuvres: frontal collapse, asymmetric collapse or spiral dive.
Mildly means that the above manoeuvres result in moderately dynamic reactions from the glider and/or moderate height losses.

Pilots who have learned and are able to correctly apply basic recovery training techniques should be able to maintain glider control and minimise height loss in the event of one of the above manoeuvres. Generally, subsequent critical glider reactions requiring immediate and precise pilot input are not to be expected from gliders of this class.

The safe use of a glider in this class requires skills learnt in standard basic training. Emergency descent methods may be performed with standard techniques and do not require special skills. As on occasion, all gliders may react more dynamically to a disturbance than expected, additional training such as regular ground handling or SIV training is recommended.