Questions:

[Space Wrangler]

What affects Vmc?

Define V2.

121 Destination landing requirement for runway length.

Define end of the first segment, climb.

Thermal runaway is associated w/ what knid of batt?

 

[a-v-8er]

What affects Vmc?

Feathering the prop, Moving the CG, Reducing/Increasing power, Critical Engine vs. Non-Critical, Higher altitudes, Gear or Flaps (Drag), Bank angle (Sideslip), Vortex Generators...

Define V2.

Minimum Takeoff Safety Speed. Speed at which the airplane should be flown after liftoff if an engine fails in order to attain the predicated climb gradient.

121 Destination landing requirement for runway length.

Airplane has to be able to land within 60% of the runway lenght at a suitable runway.

Define end of the first segment, climb.

When V2 is attained.

Thermal runaway is associated w/ what knid of batt?

Ni-cad

 

[Space Wrangler]

You're a fine American.

 

[TIS]

A couple of things

First, See Part 23.149 for minimum controllability standards for light aircraft and 25.149 for the same in transport category aircraft. You will find that laundry list of things you're trying to remember there. Easily searchable on the web.

For detailed analysis of Vmca and performance try this link posted at the Brand X site. It should answer any unresolved questions for you.

http://www.ilsapproach.com/forum/index.cgi?read=73735

Vortex generators have nothing to do with Vmca as far as the FAA is concerned. That's a manufaturer's design technique for esatblishing airflow adherence to the aileron surface so that roll control is enhanced. They're not part of certification unless the manufacturer has put them there prior to the certification tests.

Second, V2 is basically 1.2 Vs in the takeoff configuration thus providing a reasonable buffer between what you're doing and the point at which the airplane WON'T do it anymore. In a Part 25 airplane it should yield predicted climb gradients as found in the AFM for weight, altitude, and temperature in the event of a powerplant failure on rotation.

Third, Every large turbine powered airplane I've ever flown has defined the end of first segment climb as wheels fully retracted. There may be exceptions to this but that's the general definition of the end of first segment/beginning of second segment.

TIS