01-03-2016, 04:06 PM
Got this little machine out the other day for a bit of a blast around the sky.
I must say, you certainly know your alive when your at the sticks of this one.
Chris your mate down south was interested in putting something like this together
Here's a bit of a thread on it's development and some info on how it was put together. I still have all the moulds for it and a couple of semi finished wings. It will take me a little while to get around to laying up another fuse but if he's in a hurry for some serious speed. He might try one of these (link below) with the same power system as I used in the Dyna-mite. all the motor servo and esc details can be found by looking through the tread. I have two Dyna-mites both use the NTM 28-36-3000KV 755 W motor, one is using a castle cremations 70 A esc and the other I think is currently using a YEP 60 A ESC. I gave up on the Turnigy Trust ESC after it failed leaving a thin white smoky line it its wake one afternoon down at Marulan fortunately the on-board BEC was still alive and provided enough power for the control link after the motor drive part of the board was completely fried. This does not always happen I've had ESC's fail and all the lights go out with the inevitable result.
http://www.hobbyking.com/hobbyking/store..._ARF_.html
This plane from HK has almost exactly the same wing span. The Dynamite has a slightly wider cord so probably has just a little more wing area but seriously I don't think there'd be much in it at all. I'm not sure what section it's using but I do know the Dynamite uses a very thing MH areofoil section which makes it little wafty to fly at low speed but super solid when it's powering along at speed. details of the section are also in the thread.
Be warned tho' these things make a Rare Bear fun fighter look passé and fly close to a hundred klics faster.
The Battery I'm using is 1300 4S 45-90 Nanotech and that flies it just long enough to do the pylon course and land which is about 90 seconds flank speed and a little whizzing around at 1/4 throttle to line up for the strip. It probably flies happily for 3 or 4 mins if you only use 1/4 or 1/3 throttle. 1/4 throttle is adequate for take off and it's quite fast even at 1/3 throttle. Too much throttle applied too quickly creates a very nasty torque roll and left Yaw which you want to avoid by opening the throttle slowly when flying slow. (there is no rudder to counter the yaw so a little caution in this department is required) You can set the spool up on the YEP controller to accro extra soft and that helps a lot
Dual rates on this machine are a must and you must use them it's simply dangerous to fly at high speed with high rates and at low speed there is simply not enough throws for proper control.
I must say, you certainly know your alive when your at the sticks of this one.
Chris your mate down south was interested in putting something like this together
Here's a bit of a thread on it's development and some info on how it was put together. I still have all the moulds for it and a couple of semi finished wings. It will take me a little while to get around to laying up another fuse but if he's in a hurry for some serious speed. He might try one of these (link below) with the same power system as I used in the Dyna-mite. all the motor servo and esc details can be found by looking through the tread. I have two Dyna-mites both use the NTM 28-36-3000KV 755 W motor, one is using a castle cremations 70 A esc and the other I think is currently using a YEP 60 A ESC. I gave up on the Turnigy Trust ESC after it failed leaving a thin white smoky line it its wake one afternoon down at Marulan fortunately the on-board BEC was still alive and provided enough power for the control link after the motor drive part of the board was completely fried. This does not always happen I've had ESC's fail and all the lights go out with the inevitable result.
http://www.hobbyking.com/hobbyking/store..._ARF_.html
This plane from HK has almost exactly the same wing span. The Dynamite has a slightly wider cord so probably has just a little more wing area but seriously I don't think there'd be much in it at all. I'm not sure what section it's using but I do know the Dynamite uses a very thing MH areofoil section which makes it little wafty to fly at low speed but super solid when it's powering along at speed. details of the section are also in the thread.
Be warned tho' these things make a Rare Bear fun fighter look passé and fly close to a hundred klics faster.
The Battery I'm using is 1300 4S 45-90 Nanotech and that flies it just long enough to do the pylon course and land which is about 90 seconds flank speed and a little whizzing around at 1/4 throttle to line up for the strip. It probably flies happily for 3 or 4 mins if you only use 1/4 or 1/3 throttle. 1/4 throttle is adequate for take off and it's quite fast even at 1/3 throttle. Too much throttle applied too quickly creates a very nasty torque roll and left Yaw which you want to avoid by opening the throttle slowly when flying slow. (there is no rudder to counter the yaw so a little caution in this department is required) You can set the spool up on the YEP controller to accro extra soft and that helps a lot
Dual rates on this machine are a must and you must use them it's simply dangerous to fly at high speed with high rates and at low speed there is simply not enough throws for proper control.
“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