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DHV Testreport LTF 2009

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Swing Mistral 6.28
Type designationSwing Mistral 6.28
Type test reference noDHV GS-01-1887-10
Holder of certificationSwing Flugsportgeräte GmbH
ManufacturerSwing Flugsportgeräte GmbH
ClassificationB
Winch towingYes
Number of seats min / max1 / 1
AcceleratorYes
TrimmersNo
Swing Mistral 6.28
 Behaviour at min weight in flight (90kg)Behaviour at max weight in flight (115kg)
Test pilots
Harald Buntz
Harald Buntz
Reiner Brunn
Reiner Brunn
 The manufacturer does not want the videos of this test flight to be published.The manufacturer does not want the videos of this test flight to be published.
Inflation/take-offAA
Rising behaviourSmooth, easy and constant risingSmooth, easy and constant rising
Special take off technique requiredNoNo
 
LandingAA
Special landing technique requiredNoNo
 
Speeds in straight flightAA
Trim speed more than 30 km/hYesYes
Speed range using the controls larger than 10 km/hYesYes
Minimum speedLess than 25 km/hLess than 25 km/h
 
Control movementAA
Symmetric control pressureIncreasingIncreasing
Symmetric control travelGreater than 60 cmGreater than 65 cm
 
Pitch stability exiting accelerated flightAA
Dive forward angle on exitDive forward less than 30°Dive forward less than 30°
Collapse occursNoNo
 
Pitch stability operating controls during accelerated flightAA
Collapse occursNoNo
 
Roll stability and dampingAA
OscillationsReducingReducing
 
Stability in gentle spiralsAA
Tendency to return to straight flightSpontaneous exitSpontaneous exit
 
Behaviour in a steeply banked turnNote concerning spiral dives with paraglidersAB
Sink rate after two turns12 m/s to 14 m/sMore than 14 m/s
 
Symmetric front collapse BB
EntryRocking back less than 45°Rocking back less than 45°
RecoverySpontaneous in 3 s to 5 sSpontaneous in 3 s to 5 s
Dive forward angle on exitDive forward 0° to 30°Dive forward 0° to 30°
Change of courseKeeping courseKeeping course
Cascade occursNoNo
 
Symmetric front collapse in accelerated flightBB
EntryRocking back less than 45°Rocking back less than 45°
RecoverySpontaneous in 3 s to 5 sSpontaneous in 3 s to 5 s
Dive forward angle on exitDive forward 0° to 30°Dive forward 0° to 30°
Change of courseKeeping courseKeeping course
Cascade occursNoNo
 
Exiting deep stall (parachutal stall)AA
Deep stall achievedNoYes
RecoverySpontaneous in less than 3 s
Dive forward angle on exitDive forward 0° to 30°
Change of courseChanging course less than 45°
Cascade occursNo
 
High angle of attack recoveryAA
RecoverySpontaneous in less than 3 sSpontaneous in less than 3 s
Cascade occursNoNo
 
Recovery from a developed full stallBA
Dive forward angle on exitDive forward 30° to 60°Dive forward 0° to 30°
CollapseNo collapseNo collapse
Cascade occurs (other than collapses)NoNo
Rocking backLess than 45°Less than 45°
Line tensionMost lines tightMost lines tight
 
Asymmetric collapse 45-50%AA
Change of course until re-inflationLess than 90°Less than 90°
Maximum dive forward or roll angleDive or roll angle 15° to 45°Dive or roll angle 0° to 15°
Re-inflation behaviourSpontaneous re-inflationSpontaneous re-inflation
Total change of courseLess than 360°Less than 360°
Collapse on the opposite side occursNoNo
Twist occursNoNo
Cascade occursNoNo
 
Asymmetric collapse 70-75%BB
Change of course until re-inflation90° to 180°90° to 180°
Maximum dive forward or roll angleDive or roll angle 15° to 45°Dive or roll angle 15° to 45°
Re-inflation behaviourSpontaneous re-inflationSpontaneous re-inflation
Total change of courseLess than 360°Less than 360°
Collapse on the opposite side occursNoNo
Twist occursNoNo
Cascade occursNoNo
 
Asymmetric collapse 45-50% in accelerated flightAA
Change of course until re-inflationLess than 90°Less than 90°
Maximum dive forward or roll angleDive or roll angle 15° to 45°Dive or roll angle 0° to 15°
Re-inflation behaviourSpontaneous re-inflationSpontaneous re-inflation
Total change of courseLess than 360°Less than 360°
Collapse on the opposite side occursNoNo
Twist occursNoNo
Cascade occursNoNo
 
Asymmetric collapse 70-75% in accelerated flightBB
Change of course until re-inflation90° to 180°90° to 180°
Maximum dive forward or roll angleDive or roll angle 15° to 45°Dive or roll angle 15° to 45°
Re-inflation behaviourSpontaneous re-inflationSpontaneous re-inflation
Total change of courseLess than 360°Less than 360°
Collapse on the opposite side occursNoNo
Twist occursNoNo
Cascade occursNoNo
 
Directional control with a maintained asymmetric collapseAA
Able to keep courseYesYes
180° turn away from the collapsed side possible in 10 sYesYes
Amount of control range between turn and stall or spinMore than 50 % of the symmetric control travelMore than 50 % of the symmetric control travel
 
Trim speed spin tendencyAA
Spin occursNoNo
 
Low speed spin tendencyAA
Spin occursNoNo
 
Recovery from a developed spinAA
Spin rotation angle after releaseStops spinning in less than 90°Stops spinning in less than 90°
Cascade occursNoNo
 
B-line stallAA
Change of course before releaseChanging course less than 45°Changing course less than 45°
Behaviour before releaseRemains stable with straight spanRemains stable with straight span
RecoverySpontaneous in less than 3 sSpontaneous in less than 3 s
Dive forward angle on exitDive forward 0° to 30°Dive forward 0° to 30°
Cascade occursNoNo
 
Big earsAA
Entry procedureDedicated controlsStandard technique
Behaviour during big earsStable flightStable flight
RecoverySpontaneous in less than 3 sSpontaneous in less than 3 s
Dive forward angle on exitDive forward 0° to 30°Dive forward 0° to 30°
 
Big ears in accelerated flightAA
Entry procedureDedicated controlsStandard technique
Behaviour during big earsStable flightStable flight
RecoverySpontaneous in less than 3 sSpontaneous in less than 3 s
Dive forward angle on exitDive forward 0° to 30°Dive forward 0° to 30°
Behaviour immediately after releasing the accelerator while maintaining big earsStable flightStable flight
 
Behaviour exiting a steep spiralAA
Tendency to return to straight flightSpontaneous exitSpontaneous exit
Turn angle to recover normal flightLess than 720°, spontaneous recoveryLess than 720°, spontaneous recovery
Sink rate when evaluating spiral stability [m/s]1414
 
Alternative means of directional controlAA
180° turn achievable in 20 sYesYes
Stall or spin occursNoNo
 
Any other flight procedure and/or configuration described in the user's manual
No other flight procedure or configuration described in the user's manual
   
Supplementary remarks  
 With sink rates> 14 m / s, an active recovery by the pilot may be required (see instruction manual).
With sink rates> 14 m / s, an active recovery by the pilot may be required (see instruction manual).
 
 
 
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