RE: KMP Beechcraft Bonanza's!  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> RC Airplanes >> ARF or RTF >> RE: KMP Beechcraft Bonanza's!
Page: <<   < prev  1 2 3 4 5 6 [7]

Login
Message << Older Topic   Newer Topic >>
RE: KMP Beechcraft Bonanza's! - 9/25/2008 3:22:12 PM   
SLONLOW


 

Posts: 60
Joined: 6/29/2002
From: Brownsville, TX, USA
Status: offline 		Antennas look good. I left my CG point 1/2 an inch behind the recommended CG. Not much nose weight added after installing my big 220. At that point Plane sits level on CG machine. Moving CG 1/4 inch forward, plane barely moves at all so Im thinking it should be just fine. Do you have breaks on yours ?

(in reply to cristini)
       Post #: 151

RE: KMP Beechcraft Bonanza's! - 9/25/2008 3:39:56 PM   
cristini


 

Posts: 9
Joined: 9/18/2008
From: Pretoria, SOUTH AFRICA
Status: offline 		no brakes, just tightened the wheels by putting washers, it slows the aircraft nicely.

(in reply to SLONLOW)
       Post #: 152

RE: KMP Beechcraft Bonanza's! - 9/25/2008 11:21:41 PM   
adetoyinbo2


 

Posts: 23
Joined: 4/4/2005
From: upper marlboro, MD, USA
Status: offline 		hi cristin
thanks for the pictures,and your video of you plane,

jimmy

(in reply to cristini)
       Post #: 153

RE: KMP Beechcraft Bonanza's! - 9/27/2008 8:43:54 PM   
SLONLOW


 

Posts: 60
Joined: 6/29/2002
From: Brownsville, TX, USA
Status: offline 		UPDATE:...Finally ran engine today. Nice, very Nice, set in low idle and high end..starts on first flip.......after running a tank and a half through it, I decided to taxi the plane around our 800 foot runway just to get a feel for ground handling....It moved along nicely even though the retracts had play in them.....brought the plane back into the taxi way and decided I was going to fuel it up again and FLY IT !!.....Fired motor up again, checked Elevators, Up/Dwn ok, Throttle OK...had already cycled gear up and down checked OK, Ailerons, left ok right OK,,,,,,,,,,,time to GO !!! ...started out on a good roll and plane tracked nicely....dropped 10 Deg Flaps, Pulled gently back on stick and off it went, very very scale climb....About 50 feet up and climbing I switched Gear up and thats when it happened !!!!!! Plane Rolled Over Right, Compensated with Left Aileron but nothing happened, Plane kept Rolling Right, Once upside down it nosed down, What to do but Cut throttle and watched it Hit the Ground. OUCH !!! Total Loss....Not enough to take a picture of. Plane was totalled, wings totalled, broke rear intake manifold on engine also. We picked up pieces and started THE INVESTIGATION. After checking batteries, glow support, control surface positions, Rx etc etc etc etc...we found NOTHING that would have contributed to the Roll and Death of the plane. Heck even the air system still had air in it. Batteries had full charge and all surfaced moved in the right direction when checked individually. We had absolutely NO CLUE as to what happened. Back to the drawing board. Have fun guys with yours. Mine will be creamated this evening. Slo signing off.

(in reply to adetoyinbo2)
       Post #: 154

RE: KMP Beechcraft Bonanza's! - 9/29/2008 8:11:59 AM   
cristini


 

Posts: 9
Joined: 9/18/2008
From: Pretoria, SOUTH AFRICA
Status: offline 		Wow sorry for the loss, sound strange that all surfaces were going the right way ! Made a range check ?
Lost a student's trainer this week end, he forgot to put back the screw on the aileron servo...
Eric

(in reply to SLONLOW)
       Post #: 155

RE: KMP Beechcraft Bonanza's! - 9/29/2008 1:59:55 PM   
SLONLOW


 

Posts: 60
Joined: 6/29/2002
From: Brownsville, TX, USA
Status: offline 		YUP ranged checked. Using DX-7 Spectrum all around. Hi torque servos on airlerons and elevators. Completely dissasembled the plane yesterday and laid out all the electronics as installed. Went over everything over and over and they all moved in the right direction. I replayed what I did from throttling up (throttle servo totalled) to picturing it going down the runway, lifting and rolling, and me inputing commands. After retracts went up, its a total mind boggle. All control surfaces moved correctly to compensate for roll but plane kept rolling. My conclusion was that it was a Torque Induced Roll. TOO much Power. Saito 220 swinging a 16 x 8 3-blade.

(in reply to cristini)
       Post #: 156

RE: KMP Beechcraft Bonanza's! - 9/29/2008 6:35:49 PM   
molyhotdog


 

Posts: 33
Joined: 11/5/2007
From: , MN, USA
Status: offline 		That sucks, sorry man.

Did the throttle respond when you cut it or did everything quit but the throttle?

Wouldn't the torque rotate the plane to the left?

(in reply to SLONLOW)
       Post #: 157

RE: KMP Beechcraft Bonanza's! - 9/29/2008 6:51:31 PM   
cosmo64


 

Posts: 25
Joined: 1/20/2008
From: Murrieta, CA, USA
Status: offline 		What kind of retracts? I fly behind a spektrum system and have found that with certain electrical loads it is possible for the rx to have a low voltage issue and go into fail safe or rebind mode. Even with the new quick bind mode it is often too late. I run the voltage stabilizer capacitor, this make sure that the rx receives the proper voltage for a transient voltage loss try P/N - SPM1600.

(in reply to molyhotdog)
       Post #: 158

RE: KMP Beechcraft Bonanza's! - 9/29/2008 7:40:21 PM   
SLONLOW


 

Posts: 60
Joined: 6/29/2002
From: Brownsville, TX, USA
Status: offline 		Yup Throttle responded ok, once inverted and nosing in i cut power....Torque did not affect it running down runway, but once in the air up 50 feet.....beautiful torque roll..heheheh, I can laugh now since I cried al last night hehehehe.......

retracts are air up air down. single servo operated so NO i would say retracts are not a factor. I used Dual MPI on/off switched with built in power meters, with Dual 6v 2200 mAh packs in parallel. So RX was ok. Fail safe was ruled out. Even after wreckage was gone over, voltage was still OK using two diff meters.

My mind is dead on Torque Effect once it left the cushion of Ground Effect.

(in reply to cosmo64)
       Post #: 159

RE: KMP Beechcraft Bonanza's! - 9/30/2008 5:15:56 PM   
molyhotdog


 

Posts: 33
Joined: 11/5/2007
From: , MN, USA
Status: offline 		Wouldn't the plane roll to the left if it were torque? Like in a torque roll.

(in reply to SLONLOW)
       Post #: 160

RE: KMP Beechcraft Bonanza's! - 9/30/2008 6:31:34 PM   
SLONLOW


 

Posts: 60
Joined: 6/29/2002
From: Brownsville, TX, USA
Status: offline 		NO, its induced right due to the Thrust. Picture plane running down runway and you input Right Rudder to break Left induced effect by prop wash hitting left side of Rudder. Now Picture it in the Air. Right wing will drop, Left will go up inducing Roll. Left induced Torque Rolls are purposely induced by the pilot inputing aileron while plane is in hover. Turning against the or opposite engine spin is easier than with it of course.

(in reply to molyhotdog)
       Post #: 161

RE: KMP Beechcraft Bonanza's! - 10/3/2008 5:34:01 AM   
cristini


 

Posts: 9
Joined: 9/18/2008
From: Pretoria, SOUTH AFRICA
Status: offline 		I would really be surprised by a torque problem, you would have felt it on the ground, your steering was ok ?
It is so painful to loose a brand new plane.....
Jet flying this week end :-))))

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize

(in reply to SLONLOW)
       Post #: 162

RE: KMP Beechcraft Bonanza's! - 10/11/2008 1:05:11 PM   
alanc


 

Posts: 685
Joined: 12/15/2003
From: manchester, AE, UNITED KINGDOM
Status: offline 		was it range checked power on? i perform a circular range check, both power on, and off, before a commitment to fly, we have had nothing but praise for the flying qualities of this model, in both types, i hope you find the problem, its not nice to lose a ship on the first flight, my commiserations


_____________________________

ALAN, UK sales and promotions, YT INTERNATIONAL,

(in reply to cristini)
       Post #: 163

RE: KMP Beechcraft Bonanza's! - 10/11/2008 8:45:39 PM   
SLONLOW


 

Posts: 60
Joined: 6/29/2002
From: Brownsville, TX, USA
Status: offline 		Thanks Andrew for the offer on a new one. I will hold off for now. Too painful..hehehe..after extensive research, and tests, the issue was with the receiver. It, for some reason was not receiving inputs on channel 1 nor 4. It was sent in for testing and yup there it was. Coupled with the fact that I was way over powered. At 75 yards, the receiver failed. Up close it worked fine. Bummer. AR7000 fyi guys. I am using these on 4 other models and none have given me any issues. Bad apple in every batch im sure 1 in a million and I was it.

(in reply to alanc)
       Post #: 164

Page:   <<   < prev  1 2 3 4 5 6 [7]
All Forums >> RC Airplanes >> ARF or RTF >> RE: KMP Beechcraft Bonanza's!
Page: <<   < prev  1 2 3 4 5 6 [7]





Jump to: