RCU Forums - View Single Post - Beginners: watch this video FIRST
View Single Post
Old 02-18-2005 | 12:47 PM
  #44  
wings's Avatar
wings
Senior Member
 
Joined: Aug 2003
Posts: 1,589
Likes: 0
Received 0 Likes on 0 Posts
From: Carrollton, KY
Default RE: Beginners: watch this video FIRST

CafeenMan,

I know you mean well and I don't want to get into a pi$$ing match with you.

I fully understand fluid dynamics as I had a couple semesters of it and this is basic,


quote:


If the "pitch" of the airplane is downward then more thrust makes the plane go down, not up.


This statement makes no sense at all. Thrust pulls the airplane through the air which allows the flying surfaces to work.
Attitdue, not pitch, and with that correction it makes pefect sense.


quote:


I guess if you want to really get technical the roll, yaw, and pitch plus thrust determines if the plane is climbing.


I'd like to hear how you explain this please.
For example. Knife edge position. Every thing else constant, more rudder along with more thrust causes the plane to go UP. Elevetor would make the plane go side to side reletive to the ground in that situation.

If the plane was half way between the knife edge and horinzontal (change in ROLL) then it woudl be a combination of elevator, rudder and thrust that would determinb climb rate.


If we're talking about an aircraft that's flying rather than being pulled solely by the engine then lift is the answer again. It's not the elevator.

Telling people that the elevator makes the plane go up is basically teaching them how to make a bad situation worse when at low airspeed. I hear it all the time at the field... "But I was holding the elevator up and it still smashed into the ground." Umm... yes. We call that a stall.
Of course lift controls the climb of an airplane, thats common sense. But what controls the lift? Would it be the elevator and speed?

I think so.