Pilot-rc Predator 1.8m
04-17-2019 | 12:55 AM
#51
Joined: Dec 2017
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From: United Arab emirates
Hi Gents
Just finished assemble a 1.8m for one of the guys at the local club.Will test fly this weekend.
What has your findings been with the CG?Is the factory CG ok?It looks nose heavy to me.
Greg
Just finished assemble a 1.8m for one of the guys at the local club.Will test fly this weekend.
What has your findings been with the CG?Is the factory CG ok?It looks nose heavy to me.
Greg
04-20-2019 | 03:02 PM
#52
Hi Greg,
Factory CG is fine. Make sure you balance this with the gear up and uat full. This has been confirmed by Tony at Pilot. Mine was slightly tail heavy as I balanced with gear down and it’s quite a shift backwards when they retract.
You will I’ll need a few clicks of up trim. Below is a photo of how mine is. I’ve had six flights now on mine and I have to say it is a superb flying jet. It’s very stable in the air and flies beautifully on the M70xbl
Also take off flap works great as in the video below. The only throw I changed from the manual was my aileron as they were a little bit to lively for me
Here’s some video from one of my flights yesterday. Sorry about the poor quality, need a better camera.
https://m.youtube.com/watch?v=TvrDXk...ature=youtu.be
Factory CG is fine. Make sure you balance this with the gear up and uat full. This has been confirmed by Tony at Pilot. Mine was slightly tail heavy as I balanced with gear down and it’s quite a shift backwards when they retract.
You will I’ll need a few clicks of up trim. Below is a photo of how mine is. I’ve had six flights now on mine and I have to say it is a superb flying jet. It’s very stable in the air and flies beautifully on the M70xbl
Also take off flap works great as in the video below. The only throw I changed from the manual was my aileron as they were a little bit to lively for me
Here’s some video from one of my flights yesterday. Sorry about the poor quality, need a better camera.
https://m.youtube.com/watch?v=TvrDXk...ature=youtu.be
02-06-2020 | 01:43 AM
#54
My Feedback: (4)
What was that maneuver at 1:35???? Half-snap split S???
You could stand to have more flaps for landing, and crow is your friend, about 3/16-1/4" up aileron is all you need. I have about 55-60 degrees of flap and 5/16" crow on my 2.2 predator. Practically lands itself. You might also be a little tailheavy. It seemed very pitch sensitive. As Jeremy said, level flight should require a bit up up trim if the CG is dead on.
You could stand to have more flaps for landing, and crow is your friend, about 3/16-1/4" up aileron is all you need. I have about 55-60 degrees of flap and 5/16" crow on my 2.2 predator. Practically lands itself. You might also be a little tailheavy. It seemed very pitch sensitive. As Jeremy said, level flight should require a bit up up trim if the CG is dead on.
02-06-2020 | 02:12 AM
#55
I’ve now got twelve flights on mine and am very happy with how it flies and handles. I haven’t added any crow in but I might set it up for the next flights and see what changes it makes to my final approach and landing.
Overall it’s a great jet, good size for transport and really economical on fuel as I find I’m using just over a litre for a seven minute flight on the M70 which is great!! I hadn’t flown in six months and it was great to get back on the sticks last weekend with a great flying jet
Cheers
Jeremy
Overall it’s a great jet, good size for transport and really economical on fuel as I find I’m using just over a litre for a seven minute flight on the M70 which is great!! I hadn’t flown in six months and it was great to get back on the sticks last weekend with a great flying jet
Cheers
Jeremy
02-06-2020 | 07:19 AM
#56
My Feedback: (4)
I’ve now got twelve flights on mine and am very happy with how it flies and handles. I haven’t added any crow in but I might set it up for the next flights and see what changes it makes to my final approach and landing.
Overall it’s a great jet, good size for transport and really economical on fuel as I find I’m using just over a litre for a seven minute flight on the M70 which is great!! I hadn’t flown in six months and it was great to get back on the sticks last weekend with a great flying jet
Cheers
Jeremy
Overall it’s a great jet, good size for transport and really economical on fuel as I find I’m using just over a litre for a seven minute flight on the M70 which is great!! I hadn’t flown in six months and it was great to get back on the sticks last weekend with a great flying jet
Cheers
Jeremy
02-07-2020 | 06:58 AM
#57
What was that maneuver at 1:35???? Half-snap split S???
You could stand to have more flaps for landing, and crow is your friend, about 3/16-1/4" up aileron is all you need. I have about 55-60 degrees of flap and 5/16" crow on my 2.2 predator. Practically lands itself. You might also be a little tailheavy. It seemed very pitch sensitive. As Jeremy said, level flight should require a bit up up trim if the CG is dead on.
You could stand to have more flaps for landing, and crow is your friend, about 3/16-1/4" up aileron is all you need. I have about 55-60 degrees of flap and 5/16" crow on my 2.2 predator. Practically lands itself. You might also be a little tailheavy. It seemed very pitch sensitive. As Jeremy said, level flight should require a bit up up trim if the CG is dead on.
According to the xicoy I am about .2lbs nose heavy with the gear down so I think I am pretty good on that.
That was my second flight and I am still getting the feel for this bird and still setting everything up. Coming from an HSD F16 turbine to the predator means I don't have to fly at almost wide open throttle and a few other adjustments (like this plane actually flies pretty well). I have added some crow to my landing flaps and I will see how that goes on my next flight. Once I get everything trimmed and set to how I like it I will turn on the gyro. I appreciate the advice
Last edited by Flyin_Low; 02-07-2020 at 09:01 AM.
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bodywerks (02-07-2020)
02-07-2020 | 07:37 AM
#58
My Feedback: (4)
That maneuver is called "Stall" not advisable...lol...
That was my second flight and I am still getting the feel for this bird and still setting everything up. Coming from an HSD F16 turbine to the predator means I don't have to fly at almost wide open throttle and a few other adjustments. I have added some crow to my landing flaps and I will see how that goes on my next flight. I appreciate the advice
That was my second flight and I am still getting the feel for this bird and still setting everything up. Coming from an HSD F16 turbine to the predator means I don't have to fly at almost wide open throttle and a few other adjustments. I have added some crow to my landing flaps and I will see how that goes on my next flight. I appreciate the advice
02-07-2020 | 03:04 PM
#59
Happy Landings!!!
02-08-2020 | 03:38 AM
#62
Hi Jeremy, Thanks, that snap scared the crap out of me. I actually did not measure the flap travel (perhaps I should...lol...) I just took them down to what I thought looked good. I kind'a figured I was close and would eventually set them to where I wanted them anyway so I just started there. The only thing I was really careful about was the CG. That is really close to the man. rec. I will let you know how the crow goes next time I get to the field. I really can't wait to turn on the smooth flight gyro and see what that does.
03-04-2020 | 02:07 AM
#64
Hi Jeremy, Thanks, that snap scared the crap out of me. I actually did not measure the flap travel (perhaps I should...lol...) I just took them down to what I thought looked good. I kind'a figured I was close and would eventually set them to where I wanted them anyway so I just started there. The only thing I was really careful about was the CG. That is really close to the man. rec. I will let you know how the crow goes next time I get to the field. I really can't wait to turn on the smooth flight gyro and see what that does.
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bodywerks (03-04-2020)
03-05-2020 | 02:17 AM
#69
I have the Spektrum Smooth Flight which has a gyro for the steering but... I have yet to turn on the gyro. I know this might sound crazy but I want to get to know the flight characteristics of the plane before I turn the gyro.
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bodywerks (03-05-2020)
03-06-2020 | 01:13 PM
#71
Just pulled the trigger on this. I have the 2.2M Predator and have a spare K100G that needed a home, so this is where it'll live. Should arrive next week....as much pre-build is done on these I'm hoping to maiden in a couple weeks.
03-08-2020 | 06:04 AM
#74
03-11-2020 | 04:57 AM
#75
Was planing on using the Pilot PY20AH servos, but they fell victim to the coronavirus...out of stock. What are you using in the 1.8M builds? I know a standard servo will fit in the wings, but its going to be pretty snug in the elevators/rudder. I see how they configured the servo cut-outs to accept a mini size servo, but not real comfortable using those with my build, considering I'll be on the heavy side using a K100.
