Anyone change their GP Super Stearman landing gear?
05-10-2006, 07:08 PM
#1
Senior Member
Thread Starter
Join Date: Oct 2002
Location: Malaysia, MALAYSIA
Posts: 990
Likes: 0
Received 0 Likes
on
0 Posts
Anyone change their GP Super Stearman landing gear?
This plane love to bounced. Not easy to grease in the landing when cross wind is howling. As many have suffered, I encountered the same. LG fairing crack a little and it delaminate some of the landing gear mount area. So best option is inflatable dubros, and i have ordered them from LHS. What about a LG that are a bit more flexi?
That should help! Anyone done so?
That should help! Anyone done so?
05-11-2006, 03:58 PM
#2
Senior Member
My Feedback: (5)
Join Date: Jul 2002
Location: ypsilanti, MI
Posts: 196
Likes: 0
Received 0 Likes
on
0 Posts
RE: Anyone change their GP Super Stearman landing gear?
Forget the landing gear. Raise the ailerons on the upper wing only by one quarter inch and call me in the morning.
DrGO
DrGO
05-15-2006, 09:37 PM
#3
Senior Member
Thread Starter
Join Date: Oct 2002
Location: Malaysia, MALAYSIA
Posts: 990
Likes: 0
Received 0 Likes
on
0 Posts
RE: Anyone change their GP Super Stearman landing gear?
Dr Go
I have used spoileron extensively on my glider as well as some of acro bird for landing. It helps a lot.
Since I'm on 2 servo aileron so I have 4 spoileron, I was worry the effect. It have little effect on the first 4 flight as the cg was as per factory plus slight head heavy.
I readjust the cg by .5cm rearward, neutral the elevator mix for spoileron landing, and increased the spoileron throw a little more. The plane fly a lot more slower and with the spoileron on, the descent rate increase but nose level without gaining speed. It allow almost wheel landing and it land nicely! So for the last 8 flight, I have only 1-2 bounced and that was due to the a bit of hump in the middle of run way!
So I don't need the inflatable as of then but as I check on the plane, the landing gear mount ply plate seems to have cracked. The plane is about 14-15lbs and the LG is so stiff its hard on the mount area. I have to strengthen it so far. So hopefully the inflatable wheels to keep the shock to minimal level and during taxi, it will not shock the mount area too much!
I have used spoileron extensively on my glider as well as some of acro bird for landing. It helps a lot.
Since I'm on 2 servo aileron so I have 4 spoileron, I was worry the effect. It have little effect on the first 4 flight as the cg was as per factory plus slight head heavy.
I readjust the cg by .5cm rearward, neutral the elevator mix for spoileron landing, and increased the spoileron throw a little more. The plane fly a lot more slower and with the spoileron on, the descent rate increase but nose level without gaining speed. It allow almost wheel landing and it land nicely! So for the last 8 flight, I have only 1-2 bounced and that was due to the a bit of hump in the middle of run way!
So I don't need the inflatable as of then but as I check on the plane, the landing gear mount ply plate seems to have cracked. The plane is about 14-15lbs and the LG is so stiff its hard on the mount area. I have to strengthen it so far. So hopefully the inflatable wheels to keep the shock to minimal level and during taxi, it will not shock the mount area too much!
05-17-2006, 07:44 PM
#4
My Feedback: (89)
Join Date: Jan 2002
Location: Las Vegas, NV
Posts: 529
Likes: 0
Received 0 Likes
on
0 Posts
RE: Anyone change their GP Super Stearman landing gear?
[8D] Have you changed the incedence on the wing...Set it at 2 degress Positive on the Top & Bottom wing...as per RC Report.
It has helped me....hold off on setting down helps...
Hope this helps,
Larry
AMA 11269
It has helped me....hold off on setting down helps...
Hope this helps,
Larry
AMA 11269
05-19-2006, 05:06 PM
#5
Senior Member
My Feedback: (5)
Join Date: Jul 2002
Location: ypsilanti, MI
Posts: 196
Likes: 0
Received 0 Likes
on
0 Posts
RE: Anyone change their GP Super Stearman landing gear?
I saw the RC Report report and it's backward from what I experienced.
I initially raised my top wing ailerons as a temporary measure to alleviate the pitch change when going to full throttle and the abrupt stall upon landing.
The permanent fix was this:
1. Set the model with the stab horizontal at zero degrees
2. Confirm or change the lower wing to be at zero degrees also.
3. Set the top wing to be one and one-half degrees negative. This allows the top wing to be flying when the bottom wing is stalled.
Regards,
DrGO
I initially raised my top wing ailerons as a temporary measure to alleviate the pitch change when going to full throttle and the abrupt stall upon landing.
The permanent fix was this:
1. Set the model with the stab horizontal at zero degrees
2. Confirm or change the lower wing to be at zero degrees also.
3. Set the top wing to be one and one-half degrees negative. This allows the top wing to be flying when the bottom wing is stalled.
Regards,
DrGO
05-20-2006, 05:09 AM
#6
Senior Member
Join Date: Jan 2004
Location: Bardufoss, NORWAY
Posts: 625
Likes: 0
Received 0 Likes
on
0 Posts
RE: Anyone change their GP Super Stearman landing gear?
ORIGINAL: doctorgo
I saw the RC Report report and it's backward from what I experienced.
I initially raised my top wing ailerons as a temporary measure to alleviate the pitch change when going to full throttle and the abrupt stall upon landing.
The permanent fix was this:
1. Set the model with the stab horizontal at zero degrees
2. Confirm or change the lower wing to be at zero degrees also.
3. Set the top wing to be one and one-half degrees negative. This allows the top wing to be flying when the bottom wing is stalled.
Regards,
DrGO
I saw the RC Report report and it's backward from what I experienced.
I initially raised my top wing ailerons as a temporary measure to alleviate the pitch change when going to full throttle and the abrupt stall upon landing.
The permanent fix was this:
1. Set the model with the stab horizontal at zero degrees
2. Confirm or change the lower wing to be at zero degrees also.
3. Set the top wing to be one and one-half degrees negative. This allows the top wing to be flying when the bottom wing is stalled.
Regards,
DrGO
