Comments (0)
Add Comment
This will be a blog with useful thermal hunting hints that I found throughout the forum so that I can easily read them again after I forget... what was I doing again? Oh yea. 
---------------------------------------------------------------
Info on thermals down very low.
https://www.rcgroups.com/forums/show...8&postcount=21
...Continue Reading
---------------------------------------------------------------
Info on thermals down very low.
https://www.rcgroups.com/forums/show...8&postcount=21
Quote:
|
<snip> Thermals near the ground tend to be small in diameter, and fairly weak, with very tight cores, although this one was a bit extreme in those regards. In particular, it requires some extremely tight turns, which requires a lightly-loaded plane and some special piloting techniques. When the diameter of the turn is small, the airflow past the plane is very significantly curved, If the airflow is perfectly aligned with the fuselage at the wing, back at the tail the "relative wind" could be blowing upward (because of the bank angle) and inward towards the center of the turn by as much as 10-15 degrees! This tries to put the nose down, and yaw the plane towards the outside of the turn. If it's a 2-channel rudder-elevator model you need some yaw in that direction anyway, to get enough extra angle of attack at the inside wing tip to compensate for the lower airspeed there, and hold bank angle more or less constant. If the designer was really clever with juggling things like dihedral schedules, tail moment arm, tail design and wing |
This is just mainly a blog so that I can keep track of rudderless DLG flying discussions and some posts that I think are worth considering before going rudderless. If any of the opinions on any potential downsides are important enough for you to not go rudderless is up to you. People have won contests with and without them recently and in the past.
There are a lot of listed reasons that people go rudderless or don't. I personally like the mechanical simplicity of rudderless on DLGs and feel very comfortable flying them that way even in adverse weather. My experience is still relatively new to DLG though so definitely don't go just by my good feelings about it. The only ruddered airplanes I have are a Mini-DLG and a 3 meter Pike Superior motorless sailplane. From 1992 to 2013 I only flew RC Helicopters that requires rudder of course so I am not afraid of using rudder. I would never go rudderless on an RC heli
I only fly DLGs now.
https://www.rcgroups.com/forums/show....php?t=1505829
https://www.rcgroups.com/forums/show....php?t=2249694
https://www.rcgroups.com/forums/show....php?t=1119532
https://www.rcgroups.com/forums/show....php?t=1119644
https://www.rcgroups.com/forums/showthread.php?2946275
Some interesting comments are in those threads.
__________________________________
...Continue Reading
There are a lot of listed reasons that people go rudderless or don't. I personally like the mechanical simplicity of rudderless on DLGs and feel very comfortable flying them that way even in adverse weather. My experience is still relatively new to DLG though so definitely don't go just by my good feelings about it. The only ruddered airplanes I have are a Mini-DLG and a 3 meter Pike Superior motorless sailplane. From 1992 to 2013 I only flew RC Helicopters that requires rudder of course so I am not afraid of using rudder. I would never go rudderless on an RC heli
I only fly DLGs now.https://www.rcgroups.com/forums/show....php?t=1505829
https://www.rcgroups.com/forums/show....php?t=2249694
https://www.rcgroups.com/forums/show....php?t=1119532
https://www.rcgroups.com/forums/show....php?t=1119644
https://www.rcgroups.com/forums/showthread.php?2946275
Some interesting comments are in those threads.
__________________________________
Quote:
|
It's hard to argue the comments from Jaap about this year's world champion (Vincent) flying rudderless. |
Sticky:
My Binary IV is flying again
Just so that I can link them directly in posts full size
