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ASN Wikibase Occurrence # 39038
Last updated: 14 November 2019
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Date:20-JUN-1982
Time:14:20
Type:Silhouette image of generic VEZE model; specific model in this crash may look slightly different
Rutan VariEze
Owner/operator:private
Registration: N111CH
C/n / msn: 212
Fatalities:Fatalities: 1 / Occupants: 2
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Roanoke, TX -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Private
Departure airport:Roanoke, TX
Destination airport:Roanoke, TX
Investigating agency: NTSB
Narrative:
ABOUT 5 MIN AFTER TAKEOFF, THE PILOT INITIATED A HIGH SPEED LOW PASS OVER THE AIRPORT. WHEN THE AIRCRAFT WAS ABOUT 1000 FT FROM THE AIRPORT AT ABOUT 100 FT AGL, THE RIGHT WINGLET SEPARATED. A WITNESS ESTIMATED THAT THE AIRCRAFT'S SPEED WAS ABOUT 200 MPH. SUBSEQUENTLY, THE PLANE ROLLED INVERTED AND CRASHED. AN EXAMINATION REVEALED THAT THE WINGLET WAS NOT INSTALLED IN ACCORDANCE TO THE DESIGNER'S PLANS. SPECIFICALLY, THE PLANS CALLED FOR AN 8-PLY FIBERGLASS BUILD-UP ON THE OUTSIDE RADIUS FROM THE LOWER WING TO THE OUTSIDE SURFACE OF THE WINGLET. FIBERGLASS BUILD-UP WAS NOT INCORPORTED. THE DESIGNER ESTIMATED THAT IT HAD LESS THAN 1/20 OF THE DESIGN STRENGTH. AT HIGH SPEED, WITH ZERO SIDE SLIP, THERE IS AN INWARD AERODYNAMIC (BENDING) LOAD ON THE WINGLET THAT IS EQUIVALENT TO A 15 DEG SIDE SLIP AT LOW SPEED. THIS WINGLET HAD FAILED INWARD. ALSO, A NUMBER OF OTHER DEVIATIONS FROM THE DESIGNERS PLANS WERE NOTED. CAUSE:

Sources:

NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20020917X03452


Revision history:

Date/timeContributorUpdates
24-Oct-2008 10:30 ASN archive Added
21-Dec-2016 19:23 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]

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