13-05-2013, 03:40 PM
I just saw this and thaught I'd post up the link. Looks like some time fairly shortly HK is going to release a plane that meets the EF1 rules.
Should be a nice quick little sports/racer.
http://www.rcuniverse.com/forum/m_113655...m#11396063
another link with more info
http://www.rcgroups.com/forums/showthread.php?t=1806527&page=10
Here's a bit of golden advise for setting up planes that like to land hot. I found it in the forum thread I linked to above. I reckon this sounds like a pretty good plan !! I'm going to reprogram the shoestring very shortly.
Quote:
Originally Posted by blacknoise
Another really great idea. I tried flapperons, but that really did not work well. Flapperons caused the plane to balloon up and tip stall easier. Most importantly, I really don't think that flapperons slowed the plane by a whole heck of a lot. How many degrees up do you use in spoilerons?
Even worse with flaperons, they increase wash in which is no good for slow flight and they also increase adverse yaw ( nose yawing opposite roll input) while going slow. All those add up to bad things.
Here is what I wrote in the manual about using spoilers:
I like to run spoilers for landing. Contrary to popular belief, these planes actually fly pretty well slow if they are set up correctly, so don’t be afraid. Invictus is particularly well behaved at slow speed. I deflect both ailerons up about the same amount as a full deflection roll input, so each aileron is up maybe 1/2” or so. Then I set them so that when I give full aileron input, the up side aileron only moves up a little and the down side goes down no more than level with the wing. You will also likely need some down elevator mixed (5-10% depending on C.G.) in to eliminate any pitch change when they are applied. When they are set up this way, the plane becomes simple to bleed off speed and land. With the down side aileron never going below neutral, tip stalls are all but eliminated because of the added aerodynamic washout. Plus this has the added bonus of self-coordinating turns at the lower airspeed due to the added differential. Win win!
Should be a nice quick little sports/racer.
http://www.rcuniverse.com/forum/m_113655...m#11396063
another link with more info
http://www.rcgroups.com/forums/showthread.php?t=1806527&page=10
Here's a bit of golden advise for setting up planes that like to land hot. I found it in the forum thread I linked to above. I reckon this sounds like a pretty good plan !! I'm going to reprogram the shoestring very shortly.
Quote:
Originally Posted by blacknoise
Another really great idea. I tried flapperons, but that really did not work well. Flapperons caused the plane to balloon up and tip stall easier. Most importantly, I really don't think that flapperons slowed the plane by a whole heck of a lot. How many degrees up do you use in spoilerons?
Even worse with flaperons, they increase wash in which is no good for slow flight and they also increase adverse yaw ( nose yawing opposite roll input) while going slow. All those add up to bad things.
Here is what I wrote in the manual about using spoilers:
I like to run spoilers for landing. Contrary to popular belief, these planes actually fly pretty well slow if they are set up correctly, so don’t be afraid. Invictus is particularly well behaved at slow speed. I deflect both ailerons up about the same amount as a full deflection roll input, so each aileron is up maybe 1/2” or so. Then I set them so that when I give full aileron input, the up side aileron only moves up a little and the down side goes down no more than level with the wing. You will also likely need some down elevator mixed (5-10% depending on C.G.) in to eliminate any pitch change when they are applied. When they are set up this way, the plane becomes simple to bleed off speed and land. With the down side aileron never going below neutral, tip stalls are all but eliminated because of the added aerodynamic washout. Plus this has the added bonus of self-coordinating turns at the lower airspeed due to the added differential. Win win!
“The knack of flying is learning how to throw your machine at the ground and miss.”
"When once you have tasted flight, you will forever walk the earth with your thoughts turned skyward, for there you have been, and there you will always long to return." ~Leonardo Da Vinci