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Testreport LTF 97

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Firebird Grid L
Type designationFirebird Grid L
Type test reference noDHV GS-01-1087-03
Holder of certificationFirebird International AG
ManufacturerFirebird International AG
Classification1-2 GH
Winch towingYes
Number of seats min / max1 / 1
AcceleratorYes
TrimmersNo
 Behaviour at min weight in flight (100kg)Behaviour at max weight in flight (130kg)
Take off1-21-2
Inflationevenly, immediatelyevenly, immediately
Rising behaviourimmediately comes over pilotimmediately comes over pilot
Take off speedaverageaverage
Take off handlingeasyeasy
 
Straight flight1-21-2
Trim speed [km/h]3638
Accelerated speed [km/h]46
Roll dampingaveragehigh
 
Turn handling1-21-2
Spin tendencyslightslight
Control travelhighhigh
Agilityhighhigh
 
Symmetric stall1-21-2
Deep-stall limitaverage 60 cm - 75 cmaverage 60 cm - 75 cm
Full stall limitaverage 65 cm - 80 cmaverage 65 cm - 80 cm
Increase in steering powerhighhigh
 
Front collapse11
Pre-accelerationslightslight
Opening behaviourspontaneous, quicklyspontaneous, quickly
 
Asymmetric collapse1-21-2
Turn tendency90 - 180 degrees90 - 180 degrees
Rate of turnslightslight
with decelerationwith deceleration
Loss of altitudeslightslight
Stabilizationspontaneousspontaneous
Opening behaviourspontaneous, quicklyspontaneous, quickly
 
Countersteering an asymmetric collapse11-2
Stabilizationcountersteering easycountersteering easy
Control travelaverageaverage
Control pressure increasehighhigh
Turn in opposite directioneasy, no tendency to stalleasy, no tendency to stall
Opening behaviourspontaneous, quicklyspontaneous, quickly
 
Full stall, symm. exit11-2
Full stall, asymm. exit11-2
Spin out of straight flight1-21-2
Spin out of turn1-21-2
Spiral dive1-21-2
Entryeasyeasy
Spin tendencyslightslight
Exitturn continues through 180 - 360 degreesspontaneous
 
B-line stall1-21-2
Entryeasyeasy
Exitdelayed acceleration < 4 secspontaneous
 
Landing11-2
Landing behavioureasyeasy
 
Front collapse (accelerated)-1-2
Pre-acceleration-slight
Opening behaviour-spontaneous, quickly
-
 
Asymmetric collapse (accelerated)-1-2
Turn tendency-90 - 180 degrees
Rate of turn-average
-with deceleration
Loss of altitude-slight
Stabilization-spontaneous
Opening behaviour-spontaneous, quickly
-