Dear all,
I recently purchased the PNP version of the Radian Pro from Gliders on the basis it would be quick to put together - which it is. Instructions are good and there is a low parts count for assembly of the basic airframe. The motor/ESC is all fitted plus the 4 x servos in the wings. All control linkages / horns are prefitted and just need connecting and adjustment.
However, as quite a few posts in other threads have commented, space is tight in both a cockpit radio bay (containing battery/ESC/Rx battery) and in the radio bay underneath the fuselage. Presumably this is to ensure the foam fuselage sides are strong/rigid enough - so I avoided the temptation to hollow out of the radio bays.
It takes certainly takes some thought and time to fit the battteries/RX/servo leads etc. Then there is additional time to get the flying surfaces operating correctly and TX programming.
I'm getting back into this hobby and certainly didn't manage to do this in the 30 minutes some people have quoted in other threads. I would say it's worth taking some time to get the radio installation right, so I would allow 4-6 hours depending on your experience level.
I didn't want the expense of purchasing the suggested E-flite 3S 1300Mah battery so used a 3S 2200Mah battery (to power the pre-installed motor) that I had already - this just fits into the cockpit radio bay with the ESC piggybacked on top - and will give additional endurance. I also want the Rx powered independently of the motor, so have opted to fit a 1200Mah RX battery in the cockpit radio bay.
I'm using Spektrum DX8 and its supplied AR8000 receiver. The smaller box of this receiver is mounted on top of the fuselage - this is good so one can see a solid orange binding light and the two antennae can be fully extended. The main RX box is pushed right up inside the radio bay underneath the fuselage - all servo leads need attaching first. This means it is well protected from water and the servo leads don't interfere with the elevator/rudder servos. This model will not have the wings removed for transport.
I'm not sure about foam models yet (they didn't exist when I first started this hobby), but the wings seem strong and quite flexible (just like real gliders).
However, I have real concerns about the strength and lack of rigidity where the fuselage meets the tailplane. There is a single strip of reinforcement running along the centreline underneath the fuselage. This doesn't provide any torsional rigidity to the tail surfaces. I intend to strengthen the fuselage and make it more rigid and I'm using two 1 mm ply strips (30 cm long x 1 cm wide), which will be epoxied along the outside of the fuselage - one on each side at a 10 o'clock and 2 o'clock position when looking along the length of the fuselage.
I hope to complete this modification and complete set up in the next few weeks - as work committments allow.
Any one else have any thoughts on fuselage strength / rigidity of the Radion Pro?
I'm used to the rigidity of balsa/ply models such as Chris Foss's phase 6, so I am perhaps being over cautious?