DHV Test report Firebird Twix
Classification 1-2 Biplace
Winch tow Yes
Number of seats min 2
Number of seats max 2
Trimmers Yes
Behaviour at min weight
in flight (140 Kg)
Behaviour at max weight
in flight (220 Kg)
Take off
1
1
Inflation
evenly, immediately
evenly, immediately
Rising behaviour
immediately comes over
pilot
immediately comes over
pilot
Take off speed
average
average
Take off handling
easy
easy
Straight flight
1-2
1-2
Roll damping
average
average
Turn handling
1-2
1
Spin tendency
slight
not available
Control travel
high
high
Agility
average
average
Symmetric stall
1
1
Deep-stall limit
late > 75 cm
late > 75 cm
Full stall limit
late > 80 cm
late > 80 cm
Increase in steering power
high
high
Front collapse
1-2
1
Pre-acceleration
slight
slight
Opening behaviour
spontaneous, delayed
spontaneous, quickly
Asymmetric collapse
1
1-2
Turn tendency
90 - 180 degrees
90 - 180 degrees
Change of course
180 - 360 degrees
90 - 180 degrees
Rate of turn
slight
average
with deceleration
Max. roll/pitch angle
less than 45 degrees
less than 45 degrees
Loss of altitude
average
average
Stabilization
spontaneous
spontaneous
Opening behaviour
spontaneous, delayed
spontaneous, delayed
Countersteering an asymmetric
collapse
1
1
Stabilization
countersteering easy
countersteering easy
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