Descriptors : *WIND TUNNEL TESTS, *UTILITY AIRCRAFT, TEST AND EVALUATION, PITCH(MOTION), TAIL ASSEMBLIES, CANADA, WIND, AEROELASTICITY, STALLING, NONLINEAR SYSTEMS, AERODYNAMIC LOADING, AERODYNAMIC CHARACTERISTICS, SLOPE, AVIATION SAFETY, WINGS, LIFT, DISTORTION, WING BODY CONFIGURATIONS, DYNAMIC PRESSURE, AERODYNAMICS, HORIZONTAL STABILIZERS, CURVES(GEOMETRY), ACCIDENTS.

Subject Categories : AERODYNAMICS
TRANSPORT AIRCRAFT

Distribution Statement : APPROVED FOR PUBLIC RELEASE

Abstract : Full scale wind tunnel tests were carried out on the wing and empennage of WT-11 Chinook ultra light aircraft in the NAE 9m X 9m Low Speed Wind Tunnel. This test program was initiated in response to a request from the Canadian Aviation Safety Board, Ottawa, Ont., to determine the aerodynamics of the vehicle and measure the gross structural airloads. The purpose of the program was to establish if there were any unusual characteristics that might have contributed to several accidents involving this design. Aside from considerable distortion of the wing at high dynamic pressures, corresponding to 50 to 60 mph, and considerable aeroelastic effects on lift curve slope and maximum lift coefficient, at these higher dynamic pressures the basic wind does not appear to possess any inherently dangerous characteristics. However, the empennage exhibits some non-linear characteristics that could possibly cause handling qualities problems. The combination of wing stalling characteristics with horizontal tail characteristics could result in large amplitude pitch down at the stall. Keywords: Ultralight aircraft, Private aircraft, Aerodynamic characteristics, and Wing tail configurations.

We know that it was not pilot error but a Wind Tunnel Problem! We love you!
Accession Number : ADA168978

Title : Wind Tunnel Evaluation of Chinook WT-11 Ultra Light (Essais en Soufflerie de l'Avion Ultra-Leger Chinook WT-11).

Descriptive Note : Aeronautical note,

Corporate Author : NATIONAL AERONAUTICAL ESTABLISHMENT OTTAWA (ONTARIO)

Personal Author(s) : Roderick,W. E.

Report Date : FEB 1986

Pagination or Media Count : 32

Way too go ARIZONIA! The American people need to throw out all CORRUPT out of the white house - clean house -start over! We need people who care about America! THAT IS NOT OBAMA HE IS RUINING US! We have to fight for our freedoms like never before! WAKE UP AMERICA! The president cares more about protecting illgals than his own country! I think his country is KENYA! I never voted for him I saw the evil...that is why we need to be spiriual discerning to be able to seperate the wolfs from the real! Investigate our presidents history and background how did he get here! We need to stop letting the media control who is president! We need a revolt in this country before it is too late!

yes I they should show the film, I really believe that parts of it are true! Americans need to get all bad politcians out of congress especially the one that have run a long time. They are taking away our freedoms! Wake -Up to the truth people! I can't get certain jobs because I don't speak spanish! They need to learn our language! Public Schools protect the illegal aliens and are not allowed to give out info on them when we pay their bills out of our taxes! Wher are our rights! They take food out of our mouths and away from our children and elderly! Our President is a deisgrace to this nation! Have you researched his background and political agendas! Wake Up America before it is to late! Obamas wife is telling illegals that everything is going to be fine! Illegal is Illegal they broke the law! This offical from Mexico visitng Obama is two faced his laws are worse than ours! Let him take them home with him where they belong! He can dicatate to us what a jerk! Fire everyone in Congress start over!

Dear Jennie! Not Unjust! Lets just take in everyone from everywhere! Enough is Enough!
Compassion for Crime! Illegal is illegal and when they broke the law they caused this pain of being seperated from their family upon themselves! If we commit a crime in another country and are seperated from our family because of it! Does that justify the actions!
Illegals need to be held accoountable for their actions not at the cost of American citizens!
If you are so compassionate why don't you build your own housing, colleges and jobs to take care of them in your Compasisonate Jenny World!
You want to excuse them and make them comfy cozy at our expense, taking our funds for our childs education, jobs, and the taxes we pay to support their welfare checks! I suggest you get some kittens to take of!