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Testreport LTF 97

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Firebird Grid M
Type designationFirebird Grid M
Type test reference noDHV GS-01-1086-03
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 (80kg)Behaviour at max weight in flight (105kg)
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]3636
Accelerated speed [km/h]46
Roll dampingaverageaverage
 
Turn handling1-21-2
Spin tendencyslightslight
Control travelaveragehigh
Agilityaveragehigh
 
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 poweraveragehigh
 
Front collapse11
Pre-accelerationslightslight
Opening behaviourspontaneous, quicklyspontaneous, quickly
 
Asymmetric collapse1-21-2
Turn tendency90 - 180 degrees90 - 180 degrees
Rate of turnaverageslight
with decelerationwith deceleration
Loss of altitudeslightslight
Stabilizationspontaneousspontaneous
Opening behaviourspontaneous, quicklyspontaneous, quickly
 
Countersteering an asymmetric collapse11
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. exit1-21
Full stall, asymm. exit11
Spin out of straight flight1-21-2
Spin out of turn1-21-2
Spiral dive1-21-2
Entryeasyeasy
Spin tendencyslightslight
Exitspontaneousturn continues through 180 - 360 degrees
 
B-line stall11
Entryeasyeasy
Exitspontaneousspontaneous
 
Landing11
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-slight
-with deceleration
Loss of altitude-slight
Stabilization-spontaneous
Opening behaviour-spontaneous, quickly
-