First Rappy 30 flights-Some issues!
11-29-2005, 06:03 PM
#26
RE: First Rappy 30 flights-Some issues!
Houston, we have lift off!
Had a successful hover with the Raptor on Sunday. First off, I removed my balls (and no, I did not put them in the wife's purse!) I also replaced my glow plug with an O.S. #8. She started right up, idle was good, but she would still spin once it got light on the skids. So I switched to non-heading to control it and planted her down. Shut everything down and decided, what the heck, and switched my gyro to reverse. Second start-up, I got to hover. So the training gear was the vibration issue. But I initially thought I had the gyro/rudder set-up correctly. When the rudder stick was move to the right, the control rod for the tail pulled toward the front of the helicopter. And when I picked up the helicopter by the rotor head, I grabbed the tail boom and quickly rotated the helicopter so the nose would turn clockwise, the control rod, moved forward (clockwise).
Had a successful hover with the Raptor on Sunday. First off, I removed my balls (and no, I did not put them in the wife's purse!) I also replaced my glow plug with an O.S. #8. She started right up, idle was good, but she would still spin once it got light on the skids. So I switched to non-heading to control it and planted her down. Shut everything down and decided, what the heck, and switched my gyro to reverse. Second start-up, I got to hover. So the training gear was the vibration issue. But I initially thought I had the gyro/rudder set-up correctly. When the rudder stick was move to the right, the control rod for the tail pulled toward the front of the helicopter. And when I picked up the helicopter by the rotor head, I grabbed the tail boom and quickly rotated the helicopter so the nose would turn clockwise, the control rod, moved forward (clockwise).
11-29-2005, 07:17 PM
#27
Senior Member
Join Date: Oct 2002
Location: Town Creek,
AL
Posts: 1,415
Likes: 0
Received 0 Likes
on
0 Posts
RE: First Rappy 30 flights-Some issues!
ORIGINAL: Dr. Bellows : ... I grabbed the tail boom and quickly rotated the helicopter so the nose would turn clockwise, the control rod, moved forward (clockwise).
A (nose) right YAW command (whether from stick or gyro) requires the Control Rod to move forward. So countering a (nose) right movement would require the control rod to move aft.
To manually test this ... moving a helis nose to the right should produce from the gyro a control rod moving aft (left nose YAW command). If the gyro gives the same command that you are manually inducing then your gonna get the spins.
I generally test the control interaction by facing (including TX) the right side of the heli (nose pointed right/ tail pointed left). This makes it a little easier because now a right stick/gyro command moves the linkage to YOUR right (heli's forward). Likewise, a left stick/gyro command moves the linkage left (heli's aft). In otherwords, the linkage follows the stick.
Now when you do the manual test and move the heli's nose to it's left ... you should expect the gyro to respond with a linkage movement to the right, etc.
Good Luck,
tippy
11-29-2005, 10:37 PM
#28
RE: First Rappy 30 flights-Some issues!
I guess Raptor Technique has it wrong.
From Raptor Technique:
Check radio/gyro
Move the rudder stick to the right, the control rod for the tail should be pulled toward the front of the helicopter. Next pick up the helicopter by the rotor head. Grab the tail boom and quickly rotate the helicopter so the nose goes to the left. Watch the control rod, it needs to move forward. If it does not then the gyro is reversed.
DB
From Raptor Technique:
Check radio/gyro
Move the rudder stick to the right, the control rod for the tail should be pulled toward the front of the helicopter. Next pick up the helicopter by the rotor head. Grab the tail boom and quickly rotate the helicopter so the nose goes to the left. Watch the control rod, it needs to move forward. If it does not then the gyro is reversed.
DB
11-30-2005, 09:49 AM
#29
RE: First Rappy 30 flights-Some issues!
Raptor Technique is right. If you pick up your heli and move the nose to the LEFT the rod should move forward to input RIGHT tail rotor. Its best to test this in AVCS mode as the tail blades will stay put when you move the heli.
Moving the nose clock wise is moving the nose to the Right. (looking from above) Sounds to me like your thinking looking at the nose of the heli from the front.
Moving the nose clock wise is moving the nose to the Right. (looking from above) Sounds to me like your thinking looking at the nose of the heli from the front.
11-30-2005, 01:31 PM
#31
Senior Member
Join Date: Oct 2002
Location: Town Creek,
AL
Posts: 1,415
Likes: 0
Received 0 Likes
on
0 Posts
RE: First Rappy 30 flights-Some issues!
ORIGINAL: Dr. Bellows : I guess Raptor Technique has it wrong.
From Raptor Technique:
Check radio/gyro
Move the rudder stick to the right, the control rod for the tail should be pulled toward the front of the helicopter. Next pick up the helicopter by the rotor head. Grab the tail boom and quickly rotate the helicopter so the nose goes to the left. Watch the control rod, it needs to move forward. If it does not then the gyro is reversed.
From Raptor Technique:
Check radio/gyro
Move the rudder stick to the right, the control rod for the tail should be pulled toward the front of the helicopter. Next pick up the helicopter by the rotor head. Grab the tail boom and quickly rotate the helicopter so the nose goes to the left. Watch the control rod, it needs to move forward. If it does not then the gyro is reversed.
tippy : To manually test this ... moving a helis nose to the right should produce from the gyro a control rod moving aft (left nose YAW command). If the gyro gives the same command that you are manually inducing then your gonna get the spins.
d.tipton
11-30-2005, 09:18 PM
#32
RE: First Rappy 30 flights-Some issues!
Moving the nose clock wise is moving the nose to the Right. (looking from above) Sounds to me like your thinking looking at the nose of the heli from the front.
12-01-2005, 10:23 AM
#33
RE: First Rappy 30 flights-Some issues!
ORIGINAL: Dr. Bellows
You are correct, I was looking at the nose from the front. Duh!
Moving the nose clock wise is moving the nose to the Right. (looking from above) Sounds to me like your thinking looking at the nose of the heli from the front.
12-01-2005, 11:11 AM
#34
RE: First Rappy 30 flights-Some issues!
Hey Doc your not a surgeon by any chance??
DB
Thanks for help guys. We have only one rotorhead at the club and you all are big help.
