Aero question

[ben87r]

G'day.

 

I've got a question from my Aerody exam that has me and a few others stumped, ill put the question and answers up and see what you guys think

 

You have a form of tab that as speed increases travel decreases. What is this called

 

A. Spring tab

 

B. Servo

 

C. Balance

 

D. Anti balance

 

 

[Guest Maj Millard]

I 'll have a go at spring tab.................Maj......

 

 

[nong]

G'day. I've got a question from my Aerody exam that has me and a few others stumped, ill put the question and answers up and see what you guys think

You have a form of tab that as speed increases travel decreases. What is this called

 

A. Spring tab

 

B. Servo

 

C. Balance

 

D. Anti balance

[nong]

A. Spring tab Spring length changes more at high speed due to increasing aerodynamic load. Useful for limiting structural loads at higher speeds by moderating the effects of overzealous pilot input.

 

 

[ben87r]

Any examples nong? Not knowing the answer I went with servo, my thinking was never hearing of spring tab that it sounded too good to be true and thought at the time that a servo tab could be more effective with speed. Think it's funny that vie not been able to get any of the instructors to answer it

 

 

[djpacro]

You don't see many spring tabs these days. From memory the Canberra had them.

 

 

[loro]

"Tailoring Control Forces" starting on Page 270 of Aerodynamics for Naval Aviators available here http://www.faa.gov/regulations_policies/handbooks_manuals/aviation/media/00-80t-80.pdf may help.