[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Paparazzi-devel] Reply to:"AoA and high altitude flying (Hector and Ret
From: |
Chris |
Subject: |
[Paparazzi-devel] Reply to:"AoA and high altitude flying (Hector and Reto)" |
Date: |
Thu, 17 Nov 2011 19:58:28 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.23) Gecko/20110921 Thunderbird/3.1.15 |
Hi Hector and Reto.
First i am using an electric powered plane that usually flies at 1000 to
3000m
Hector I think you are right that velocity has to be taken into account.
About the drag increase due to increased AoA i just estimated that at 4
degrees (max allowed 8 degrees)
the airfoil lift to drag ratio should be at maximum but of course you
need to know CL and CD for
a range of AoA in order to fly as efficiently as possible.
Reto i agree that the correct method is to increase speed as the air
gets thiner otherwise the plane might stall or consume more energy that
needed.
The control loops actually do a good job by increasing speed so lift
remains the same
if am not mistaken, I am just trying to save the last few watts.
Chris
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [Paparazzi-devel] Reply to:"AoA and high altitude flying (Hector and Reto)",
Chris <=