I got the umx radian and conscendo, i loved them both, but the radian being as simple as it is glides the best, conscendo is a nice sail plane but i feel is too delicate
I note that you say that the UMX Radian pitches up at full throttle. It is doing exactly what it is designed to do. The 2m Armsoar Medina does this. The F5J Volo and Prestige and Voyager do this. The 2m Radian does this. And please remember that thermal duration sailplanes are not really meant to do aerobatics or go inverted-especially polyhedral ones. The way motorized sailplanes are flown is that the motor is used to launch the plane to an altitude sufficient to hunt for thermals (around 150 meters for sailplane 2 meters and larger). After the altitude is achieved, the motor is shut down and is not turned on again. The motor is designed to make the plane go up when the throttle is increased (the plane pitches up). The challenge is to climb and stay aloft without using the motor at all once you launched the model to a good starting height. In these planes, I don't use gyros or AS3X, let alone SAFE. You want the plane to be free from any gyros. You want the plane to be able to react to any turbulence without correcting itself. You want the plane to suddenly raise or lower a wing without gyro interference. This enables you to read the air. This is how the sailplane communicates with you. Soaring without relying on motors to remain aloft is an art that takes a lot of practice and a lot of discipline to resist turning on the motor when you start to lose altitude. I started with unpowered thermal duration sailplanes in 2000-this is how I learned to fly RC. I started with a woody sailplane and eventually I moved on to a 2 meter Organic-an unpowered, composite and balsa full house thermal duration sailplane that weighed as much as an original 2m Radian. One had to use a winch or hi start to launch these. You were forced to learn to read the air if you wanted to maximize your flight time. SAFE is a HUGE hindrance, not help, in thermal duration sailplanes. I want full, unrestricted control response so I can do highly banked turns in order to core tight thermals if needed. Especially in small, light sailplanes like the UMX Radian. When you remain aloft for more than 30 minutes without using the motor, you will be hooked. I had an F5J 4 meter Volo, and I got about 30 minutes of flight time just by working thermals. No motor at all. You last this long on an 800 mAh 3S lipo because you only fire up the motor for around 7 seconds (the beginning of the flight) and then shut it off. And the lipo has to power six servos as well. You need to keep your thermal turns rather flat. Look at how the birds do this. They don't bank a lot. They keep their turns rather flat and wide. In order to be able to core tight thermals, you will need a sailplane with ailerons and capability to change the wing camber. This will enable you to core tight thermals without stalling the plane. An exception to this is the unpowered, 1 meter ELF DLG that has only 2 channels (rudder and elevator) but it has a lot of dihedral and is almost as responsive as an aileron ship and can core tight thermals because of the way it's designed.,
Man I used to have some harbor freight yellowbees. Trimed out perfect I used to go in windy conditions and ride the ridge just keepin the nose pointed upwind
I got the umx radian and conscendo, i loved them both, but the radian being as simple as it is glides the best, conscendo is a nice sail plane but i feel is too delicate
I note that you say that the UMX Radian pitches up at full throttle. It is doing exactly what it is designed to do. The 2m Armsoar Medina does this. The F5J Volo and Prestige and Voyager do this. The 2m Radian does this. And please remember that thermal duration sailplanes are not really meant to do aerobatics or go inverted-especially polyhedral ones.
The way motorized sailplanes are flown is that the motor is used to launch the plane to an altitude sufficient to hunt for thermals (around 150 meters for sailplane 2 meters and larger). After the altitude is achieved, the motor is shut down and is not turned on again. The motor is designed to make the plane go up when the throttle is increased (the plane pitches up).
The challenge is to climb and stay aloft without using the motor at all once you launched the model to a good starting height.
In these planes, I don't use gyros or AS3X, let alone SAFE. You want the plane to be free from any gyros. You want the plane to be able to react to any turbulence without correcting itself. You want the plane to suddenly raise or lower a wing without gyro interference. This enables you to read the air. This is how the sailplane communicates with you. Soaring without relying on motors to remain aloft is an art that takes a lot of practice and a lot of discipline to resist turning on the motor when you start to lose altitude. I started with unpowered thermal duration sailplanes in 2000-this is how I learned to fly RC. I started with a woody sailplane and eventually I moved on to a 2 meter Organic-an unpowered, composite and balsa full house thermal duration sailplane that weighed as much as an original 2m Radian. One had to use a winch or hi start to launch these. You were forced to learn to read the air if you wanted to maximize your flight time. SAFE is a HUGE hindrance, not help, in thermal duration sailplanes. I want full, unrestricted control response so I can do highly banked turns in order to core tight thermals if needed. Especially in small, light sailplanes like the UMX Radian.
When you remain aloft for more than 30 minutes without using the motor, you will be hooked. I had an F5J 4 meter Volo, and I got about 30 minutes of flight time just by working thermals. No motor at all. You last this long on an 800 mAh 3S lipo because you only fire up the motor for around 7 seconds (the beginning of the flight) and then shut it off. And the lipo has to power six servos as well.
You need to keep your thermal turns rather flat. Look at how the birds do this. They don't bank a lot. They keep their turns rather flat and wide. In order to be able to core tight thermals, you will need a sailplane with ailerons and capability to change the wing camber. This will enable you to core tight thermals without stalling the plane. An exception to this is the unpowered, 1 meter ELF DLG that has only 2 channels (rudder and elevator) but it has a lot of dihedral and is almost as responsive as an aileron ship and can core tight thermals because of the way it's designed.,
Man I used to have some harbor freight yellowbees.
Trimed out perfect I used to go in windy conditions and ride the ridge just keepin the nose pointed upwind
UMX Radian is great and fun, but if you have a little extra cash go for the UMX Conscendo!
They are different flight type, I have umx Radian e umx conscendo and I love them.
Can you pls send me yours