3ding?
05-27-2003 | 11:50 PM
#3
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3ding?
3Ding is a radical form of RC flight.
It involves things like "hovering" the plane. (Considered by most to be the most impressive part of 3Ding.)
Hovering is "simply" hanging the plane by it's prop (while flying of course), and requires that the thrust to weight ration be greater than 1:1. In other words, if the plane weighs 35 pounds (as many true 3D palnes do), then the engine must be capable of producing something like 40 to 50 pounds of thrust. This will also allow the pilot to accelerate vertically (or climb) out of the hover.
Good 3D pilots can touch the rudder to the ground while hovering.
There are usually many more maneuvers performed during a 3D flight. Torque rolls, tail slides, rolling circles.... the list goes on and on.
During 3D competitions, these flights are performed in time to music which can make them truly spectacular.
What I DON'T like about most 3D flying is that it is often not true to scale. If it were possible to perform some of these tricks with a real plane, they would most likely kill the pilot from excessive "G" forces. That being said, full scale aerobatic pilots have been paying close attention to what these 3D pilots are doing, and some have incorporated maneuvers into their routines.
Dennis-
It involves things like "hovering" the plane. (Considered by most to be the most impressive part of 3Ding.)
Hovering is "simply" hanging the plane by it's prop (while flying of course), and requires that the thrust to weight ration be greater than 1:1. In other words, if the plane weighs 35 pounds (as many true 3D palnes do), then the engine must be capable of producing something like 40 to 50 pounds of thrust. This will also allow the pilot to accelerate vertically (or climb) out of the hover.
Good 3D pilots can touch the rudder to the ground while hovering.
There are usually many more maneuvers performed during a 3D flight. Torque rolls, tail slides, rolling circles.... the list goes on and on.
During 3D competitions, these flights are performed in time to music which can make them truly spectacular.
What I DON'T like about most 3D flying is that it is often not true to scale. If it were possible to perform some of these tricks with a real plane, they would most likely kill the pilot from excessive "G" forces. That being said, full scale aerobatic pilots have been paying close attention to what these 3D pilots are doing, and some have incorporated maneuvers into their routines.
Dennis-
05-28-2003 | 12:02 AM
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From: Frederick,
MD
Forum for 3D
Just above the beginner discussion forum is a forum labeled:
> 3D, IMAC and Pattern
http://www.rcuniverse.com/forumdispl...?s=&forumid=31
3D has been described as flying post stall. Thrust is vectored over the control surfaces which are generally large and have extreme movement.
The forum has many posts including some that have downloadable video clips.
IMAC is scale precision aerobatics and the freestyle routines include many 3D manuvers
www.mini-iac.com
Pattern is precision aerobatics performed with a purpose built plane of no more than 2 x 2 meters in length and span and not weighing more than 11 lbs.
http://www.nsrca.org/
EXCAP232
> 3D, IMAC and Pattern
http://www.rcuniverse.com/forumdispl...?s=&forumid=31
3D has been described as flying post stall. Thrust is vectored over the control surfaces which are generally large and have extreme movement.
The forum has many posts including some that have downloadable video clips.
IMAC is scale precision aerobatics and the freestyle routines include many 3D manuvers
www.mini-iac.com
Pattern is precision aerobatics performed with a purpose built plane of no more than 2 x 2 meters in length and span and not weighing more than 11 lbs.
http://www.nsrca.org/
EXCAP232
05-28-2003 | 07:31 AM
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From: Frederick,
MD
Stick movements
Originally posted by Felix21685
when u hover do u have to do drastic movements on teh stick since there isnt alot of air to work with since your stationary?
when u hover do u have to do drastic movements on teh stick since there isnt alot of air to work with since your stationary?
EXCAP232
05-28-2003 | 11:29 PM
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From: Flagstaff,
AZ
nother dumb question :)
since this is the beginner forum i can ask 
what is exponential ?? i've read about it in alot of places but dont have a clue on what it is ive read about -30% and 70% whats the deal ?
thanks
Felix
what is exponential ?? i've read about it in alot of places but dont have a clue on what it is ive read about -30% and 70% whats the deal ?thanks
Felix
05-29-2003 | 12:32 AM
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From: Crete,
IL
3ding?
Exponential is used to make the sticks less sensitive around neutral. The percentage of expo refers to the amount that the stick is less sensitive than it originally was. 30% expo = the stick being 30% less sensitive AT NEUTRAL than it was before. 3D flight is a term for maneuvers where the plane is no longer flying but is kept in the air by shear power and prop wash over the control surfaces. Thrust to weight ratio is actually about 2:1 for good 3D.
