Aviation Jets Sparrow CG
10-31-2019, 04:53 PM
#1
Aviation Jets Sparrow CG
Looking for the CG for this jet, a club member bought one recently and he needs info on it, like travel distances on the controls and CG. it was sold by Pacific Jets, anyone?
Thank you.
Last edited by CARS II; 10-31-2019 at 04:55 PM.
10-31-2019, 05:22 PM
#2
Global Jet Club sells this jet now. Here are the recommended numbers:
There should have been 2 wooden plates included to slip over the spar between the fuse and wing to hang the jet to balance.
The plates will give a Cg at 330 mm which works just fine.
Aileron
H – 25 mm
M – 20 mm
L – 18 mm
Elevator
H – 30 mm
M – 20 mm
L – 15 mm
Rudder
20 mm
Flaps
Mid 50 mm
Full 95 mm
Crow
13 mm
Cg
305 mm – 330 mm
There should have been 2 wooden plates included to slip over the spar between the fuse and wing to hang the jet to balance.
The plates will give a Cg at 330 mm which works just fine.
Aileron
H – 25 mm
M – 20 mm
L – 18 mm
Elevator
H – 30 mm
M – 20 mm
L – 15 mm
Rudder
20 mm
Flaps
Mid 50 mm
Full 95 mm
Crow
13 mm
Cg
305 mm – 330 mm
Last edited by Thud_Driver; 10-31-2019 at 05:30 PM.
10-31-2019, 06:26 PM
#4
Join Date: Apr 2006
Location: Meadow Vista,
CA
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Hi Thud_Driver,
thanks for the reply on the Sparrow!
IS there anything I should look out for regarding the Sparrow or do you have any recommendations with your experience with this model
thanks,
rc3dflyr
thanks for the reply on the Sparrow!
IS there anything I should look out for regarding the Sparrow or do you have any recommendations with your experience with this model
thanks,
rc3dflyr
10-31-2019, 08:02 PM
#5
Just to be clear, I have not flown this jet. I've done the install and setup on 2 Sparrows for Mike Lin at GJC, one with an Acex 140 and the other with a P-180RX. He's been very positive about the way it flys.
The main thing is that you are going to have to add weight to the nose. Even with everything well forward and the batteries all the way in the nose. So use large capacity batteries.
The main thing is that you are going to have to add weight to the nose. Even with everything well forward and the batteries all the way in the nose. So use large capacity batteries.
11-01-2019, 04:26 PM
#11
My Feedback: (2)
I built one this year. I ordered the vectored thrust unit for mine. I’m balanced at 49mm in front of the mains according to Xicoy balancer. Like said before build as far forward as possible. I have 2x 2s5000 Lipo’s and a 3s5000 Lipo in the nose along with 8oz of lead. I blew the pipe up with the Rhino last week. Ordered a new pipe from Grumania and hoping that it’s light enough to remove all the lead from the nose.
11-02-2019, 10:26 AM
#12
There's a ton of wires under those boards. Not fun if you have to get in there and mess with any of it.
I painted the equipment boards with Krylon. I don't know what jesse2357 used for his.
https://www.krylon.com/products/fine...extured-finish
Quick sanding with 320, no primer and blue painters tape to mask the places where the velcro goes. Several colors available, covers nicely, 2 - 3 coats. Around $12 per can.
I decided the cutouts for the wires looked bad so I 3D printed some liners for the holes to make it look better.
I painted the equipment boards with Krylon. I don't know what jesse2357 used for his.
https://www.krylon.com/products/fine...extured-finish
Quick sanding with 320, no primer and blue painters tape to mask the places where the velcro goes. Several colors available, covers nicely, 2 - 3 coats. Around $12 per can.
I decided the cutouts for the wires looked bad so I 3D printed some liners for the holes to make it look better.
