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NTSB Report
January 6, 1983 · Schweizer 1-36 I-36 · N36166
Colo Springs, CO
Overview
Report Status
Preliminary report
Event Type
Accident
Date
January 6, 1983
Injury Outcomes
No injuries (1 uninjured)
Location
Colo Springs, CO
Aircraft
Schweizer 1-36 I-36
Tail Number
N36166
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN83FTE05
THE GLIDER WAS SUBSTANTIALLY DAMAGED DURING A PULLUP FROM A DIVE AT ALTITUDE. THE WING WAS RIPPLED AND BECKLED AND DAMAGED AT THE ATTACH POINTS. THE DIHEDRIAL HAD CHANGED FROM 6 DEGREES TO 8.5 DEGREES. THERE WAS ALSO UNMEASURED CHANGE IN THE SWEEPBACK. IT IS BELIEVED THAT THE PILOT ACHIEVED THE AIRSPEED ESTIMATED FROM THE BAROGRAPH AT 146 MPH BY RETRACTING THE SPEED BRAKES DURING THE DIVE. MAXIMUM AIRSPEED IS 136 MPH FOR THIS GLIDER. THE PILOT DOES NOT RECALL THE PULLUP EXCEPT FOR NEGATIVE G'S AT THE TOP. POSITIVE G FORCES WERE ESTIMATED AT 10.5 TO 11. THE AIRCRAFT MADE A NORMAL LANDING AFTER THE FLIGHT.
Full Narrative
THE GLIDER WAS SUBSTANTIALLY DAMAGED DURING A PULLUP FROM A DIVE AT ALTITUDE. THE WING WAS RIPPLED AND BECKLED AND DAMAGED AT THE ATTACH POINTS. THE DIHEDRIAL HAD CHANGED FROM 6 DEGREES TO 8.5 DEGREES. THERE WAS ALSO UNMEASURED CHANGE IN THE SWEEPBACK. IT IS BELIEVED THAT THE PILOT ACHIEVED THE AIRSPEED ESTIMATED FROM THE BAROGRAPH AT 146 MPH BY RETRACTING THE SPEED BRAKES DURING THE DIVE. MAXIMUM AIRSPEED IS 136 MPH FOR THIS GLIDER. THE PILOT DOES NOT RECALL THE PULLUP EXCEPT FOR NEGATIVE G'S AT THE TOP. POSITIVE G FORCES WERE ESTIMATED AT 10.5 TO 11. THE AIRCRAFT MADE A NORMAL LANDING AFTER THE FLIGHT.
Flight
Event TypeAccident
Event Time10:40 MST
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSchweizer 1-36 I-36
Tail NumberN36166
Aircraft CategoryGli
DamageSubstantial
Operating RulePart 91
Engines0
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 38 · Unknown
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility100 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourceWIT