New BME Aircraft 30% Extra330L
01-28-2007, 11:07 PM
#526
RE: BME Aircraft 30% Extra330L
ORIGINAL: Digger44
Well I got the stabs and rudder hinged and the control horns drilled and mounted. After all that it got real slow. When inserting the stab on the fuse and tube, the anti rotation pin broke the ply doubler off from the inside of the fuse. That was a real bugger to get back on with no real access to it. Kinda surprised me when it broke as I wasn't really putting that much pressure on it. Once I got that back on and was inserting the screws that hold the stab in place and the first one popped out the ply doubler the blind nut was mounted in. Looks like I am going to have to cut the covering on the bottom rear section to get to it and re-glue it. Not a big problem just slowing me down. On a positive note, I measured the stab incedance with the fuse level and it was real close , about 1/4 deg negative. The control horn was drilled as called out in the manual and came out on the money, pivot right over the hinge line.
Tried twice to upload pics, no luck they are HUGE. Somethings up with the pics again.
Well I got the stabs and rudder hinged and the control horns drilled and mounted. After all that it got real slow. When inserting the stab on the fuse and tube, the anti rotation pin broke the ply doubler off from the inside of the fuse. That was a real bugger to get back on with no real access to it. Kinda surprised me when it broke as I wasn't really putting that much pressure on it. Once I got that back on and was inserting the screws that hold the stab in place and the first one popped out the ply doubler the blind nut was mounted in. Looks like I am going to have to cut the covering on the bottom rear section to get to it and re-glue it. Not a big problem just slowing me down. On a positive note, I measured the stab incedance with the fuse level and it was real close , about 1/4 deg negative. The control horn was drilled as called out in the manual and came out on the money, pivot right over the hinge line.
Tried twice to upload pics, no luck they are HUGE. Somethings up with the pics again.
On both sides...front and rear of the stab tube location on the fuse there should be some lightening holes. If so, cut the covering there if it will give you enough access to the location. You won’t need to do any covering repairs if you can get in there. I would cut out the opposite side that the double ply popped of.
Ken
01-28-2007, 11:11 PM
#527
RE: BME Aircraft 30% Extra330L
ORIGINAL: newflyguy
Thanks Steve,
I had four more flights today cg at 5.75, flew allot better, but still litlte nose heavy, this is one fantastic flying airplane, does great knife edge spins, and inverted flats, this thing flips over in waterfalls so quick, wow, also did some slow rolls and harriers and elevators, and a few knife edge passes, Herve, and Ken thanks for all the support, I know I am going to really enjoy this plane. The Taurus seems to be a very nice match for it, very smooth transition, idles smooth at 1600 rpm, and turns aSkorepa 22-8 @ 7200 and with less then 1 tank through it. Can hardly wait to put on the PAU 23-3da on this engine. I still have no wieght but it has had no lightening done at all, I have 2 2500 6 volt nmhd's for rx , and 1 2500 4.8 volt nmhd for the ign., and three switches. Still waiting for the decals from Maudib, for the finshing touches. Digger44, hope you get it done soon, it is one GREAT plane. Brad.
Thanks Steve,
I had four more flights today cg at 5.75, flew allot better, but still litlte nose heavy, this is one fantastic flying airplane, does great knife edge spins, and inverted flats, this thing flips over in waterfalls so quick, wow, also did some slow rolls and harriers and elevators, and a few knife edge passes, Herve, and Ken thanks for all the support, I know I am going to really enjoy this plane. The Taurus seems to be a very nice match for it, very smooth transition, idles smooth at 1600 rpm, and turns aSkorepa 22-8 @ 7200 and with less then 1 tank through it. Can hardly wait to put on the PAU 23-3da on this engine. I still have no wieght but it has had no lightening done at all, I have 2 2500 6 volt nmhd's for rx , and 1 2500 4.8 volt nmhd for the ign., and three switches. Still waiting for the decals from Maudib, for the finshing touches. Digger44, hope you get it done soon, it is one GREAT plane. Brad.
Glad to hear! Looking forward to hearing more flight reports with that motor and prop. Was out again this weekend with mine. Little colder this time and was not out too long...burrrrr!
Ken
01-29-2007, 02:32 PM
#529
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RE: BME Aircraft 30% Extra330L
Thanks. I have a pair of 8511s on hand but I have no idea what they provide in terms of torque (all I found was 25 Kg - European SKU). They do look to have the same case as the 8611...
ORIGINAL: Maudib
They sure are...
The manual calls for a 130 oz in minimum... the 8411's are 155...
In reality I think we overkill the elevators more than any other surface... they work hard... but they have leverage advantage on the plane on it's CG...
And since we use two (one each) there really is plenty of power there.
I'd not think twice about using those servos... nice coreless digitals... good stuff.
They sure are...
The manual calls for a 130 oz in minimum... the 8411's are 155...
In reality I think we overkill the elevators more than any other surface... they work hard... but they have leverage advantage on the plane on it's CG...
And since we use two (one each) there really is plenty of power there.
I'd not think twice about using those servos... nice coreless digitals... good stuff.
01-29-2007, 05:17 PM
#531
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RE: BME Aircraft 30% Extra330L
I believe they rate their servos as KG/CM or kilograms/centimeter. So 25KG/CM= 346 oz/in. Everything I could find about the JR 8511 is that they are rated at 15KG at 4.8V, which equals 207oz/in.
ORIGINAL: yarom
Thanks. I have a pair of 8511s on hand but I have no idea what they provide in terms of torque (all I found was 25 Kg - European SKU). They do look to have the same case as the 8611...
Thanks. I have a pair of 8511s on hand but I have no idea what they provide in terms of torque (all I found was 25 Kg - European SKU). They do look to have the same case as the 8611...
ORIGINAL: Maudib
They sure are...
The manual calls for a 130 oz in minimum... the 8411's are 155...
In reality I think we overkill the elevators more than any other surface... they work hard... but they have leverage advantage on the plane on it's CG...
And since we use two (one each) there really is plenty of power there.
I'd not think twice about using those servos... nice coreless digitals... good stuff.
They sure are...
The manual calls for a 130 oz in minimum... the 8411's are 155...
In reality I think we overkill the elevators more than any other surface... they work hard... but they have leverage advantage on the plane on it's CG...
And since we use two (one each) there really is plenty of power there.
I'd not think twice about using those servos... nice coreless digitals... good stuff.
01-29-2007, 07:10 PM
#532
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RE: BME Aircraft 30% Extra330L
Thanks. This beats the 8411s by quite a bit - especially on 6V. I would hate installing servos that are just the right size. This goes against our very basic instinct to overpower everything by as much as possible.
You are right, it's the 8711 that dishes out 25kg/cm, which we already know is somewhere around 407 oz. , or just enough for a throttle servo...
01-29-2007, 07:13 PM
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RE: BME Aircraft 30% Extra330L
Thanks Ken. That means I should put new top cases on them, with the appropriate 8611 sticker - send them to JR and they will replace them with whatever they provide instead...
They have replaced all my 8611s so far...
01-30-2007, 04:52 PM
#534
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RE: BME Aircraft 30% Extra330L
I ended up cutting a small opening in the bottom of the fuse to get to the ply doublers for the stab attachment screws. While I was there I reglued all four of them. The one I knocked out had no glue at all on it. The small holes in the fuse for lightening were not big enough to work through. Patching the bottom will be no problem at all. I just happen to have some white Ultracoat on hand.
01-30-2007, 07:14 PM
#535
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RE: BME Aircraft 30% Extra330L
Few more pics on the progress. I have all the hinges glued up and all the horns drilled in and set. I drilled the horns on the ailerons half the distance from the 90 deg line off the servo arm.
01-31-2007, 10:39 AM
#536
RE: BME Aircraft 30% Extra330L
Hey Digger,
Looks like your getting close. Yeah, I had one of the blind nuts for the stab fall out when I was assembling mine. I was able to get in there with the suggestion to you I made. I wasn't sure if it would work for you or not. It's looking good and hopefully you'll get some nice Georgia sunshine for the maiden.
Yarom,
Glad to hear those servos are going to work for you. I still have some old 8611's with the case, no problems from those. I probably send them in soon and have them looked at. I do love these servos.
Ken
Looks like your getting close. Yeah, I had one of the blind nuts for the stab fall out when I was assembling mine. I was able to get in there with the suggestion to you I made. I wasn't sure if it would work for you or not. It's looking good and hopefully you'll get some nice Georgia sunshine for the maiden.
Yarom,
Glad to hear those servos are going to work for you. I still have some old 8611's with the case, no problems from those. I probably send them in soon and have them looked at. I do love these servos.
Ken
01-31-2007, 11:13 AM
#537
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RE: BME Aircraft 30% Extra330L
Hi,
Sorry to barge in.
What SWB servo arms are you using ( 1.25 " or 1" ) ? I browse the thread and could not find the info. Should I order the longer ones to be safe? For the rudder the 3" is fine ?
I got my airframe a few days ago. Put it on scale right out the box and it came out pretty close to Maudib's one. Now, after sitting in my house, the wings are full of wrinkles but I lost 1oz on each. Did not weight the fuse again.
The QC slipped on mine, warped cowl and cracked wheelpant but the replacements are already on the way. Top notch customer service.
Boby
Sorry to barge in.
What SWB servo arms are you using ( 1.25 " or 1" ) ? I browse the thread and could not find the info. Should I order the longer ones to be safe? For the rudder the 3" is fine ?
I got my airframe a few days ago. Put it on scale right out the box and it came out pretty close to Maudib's one. Now, after sitting in my house, the wings are full of wrinkles but I lost 1oz on each. Did not weight the fuse again.
The QC slipped on mine, warped cowl and cracked wheelpant but the replacements are already on the way. Top notch customer service.
Boby
01-31-2007, 02:07 PM
#539
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RE: BME Aircraft 30% Extra330L
Hey Ken, send them to JR, they get replaced pretty much automatically. I got every single 8411 and 8611 sent in for revision, replaced with a new one.
I think JR has finally come to grips with the failure of some of their servos and are moving on to new models with better QC.
Too bad I have no time to fly right now. Plane is ready and weather looks great (50 and sunshine in the afternoons)... I still have to tweak the radio as I replaced the trusty 9303 with a new DX7 and need to rework the programming quite a bit...
02-02-2007, 10:11 PM
#540
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RE: BME Aircraft 30% Extra330L
My Extra330L is on sell. Anyone interest?
http://www.rcuniverse.com/market/item.cfm?itemID=259254
http://www.rcuniverse.com/market/item.cfm?itemID=259254
02-05-2007, 08:15 PM
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RE: BME Aircraft 30% Extra330L
Little more progress, Finished the canopy and started with the push rods and sealing hinges lines. Noticed a little play in the horn linkage right where the screw attaches at the pivot, maybe 1/16" play. Hope that's not too much. On the Elevator linkage, the play was more like an 1/8", found that the coating on the horn connector had worn down and it was moving a bit on the horn itself. I don't feel real good about that. I wonder what could be put on the threads to tighten them back up??
02-05-2007, 08:31 PM
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RE: BME Aircraft 30% Extra330L
Thanks David, Just one little way I can show my patriotism!!
I plan to use the 1" position on the servo arms and am still getting around 38 degrees of throw on the ailerons. Hooked the servo's up to the programmer and reset the endpoints to 32 degrees. That control horn looks like it could do some damage if I messed up and overshot with the radio .
I plan to use the 1" position on the servo arms and am still getting around 38 degrees of throw on the ailerons. Hooked the servo's up to the programmer and reset the endpoints to 32 degrees. That control horn looks like it could do some damage if I messed up and overshot with the radio .
02-05-2007, 09:00 PM
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RE: BME Aircraft 30% Extra330L
The Pull-Pull setup is next. I have most of the stuff to finish now except for the batteries and the spinner(True-Turn bo'd). By the time it all arrives I should be close to setting the balance at CG with the batteries and switches.
02-05-2007, 09:28 PM
#545
RE: BME Aircraft 30% Extra330L
Digger,
Lookin good. I still have to get a spinner also. My linkages loosened up a bit also where the horn screws onto the bolt, after whatever goop they use was gone, and I just used a very small amount of thin CA to tighten them up. Very Small Amount,, or you won't be getting it off again. Now there is no play at all.
Lookin good. I still have to get a spinner also. My linkages loosened up a bit also where the horn screws onto the bolt, after whatever goop they use was gone, and I just used a very small amount of thin CA to tighten them up. Very Small Amount,, or you won't be getting it off again. Now there is no play at all.
02-05-2007, 10:15 PM
#546
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RE: BME Aircraft 30% Extra330L
Hey guys, my controls loosened also, I used the teflon thread sealent from permatex, it seems to be working and I don't think it will be a big issue to take them back off after, this is the liquid paste stuff not the tape. Brad
02-06-2007, 06:11 AM
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RE: BME Aircraft 30% Extra330L
Thanks for the suggestions, I might try a little CA on the threads with the horn removed and let it dry before re-installing the horn. I'de hate to have to cut them off later.
02-09-2007, 09:29 PM
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RE: BME Aircraft 30% Extra330L
Ok, I fianlly got my linkages tight. What I ended up doing on the threads was the thin CA and letting it dry before putting the horn on. That feels pretty solid for now. I tried teflon tape on the threads but that didn't feel to solid. I didn't have any liquid permatx teflon so I didn't have a chance to try it.
I also fond that the bushing in the horn hinge was loose and had some end play. I had some .003 brass shim stock handy so I cut a small strip, enough to wrap the bushing almost once, and placed it back into the pivot end. When replacing the screw I used extra strength thread lock. Set the tension on the screw for desired resistance in the pivot. This mod is very easy and takes about 5 minutes each and is well worth it. Absolutely no slop at all after the shim.
I also fond that the bushing in the horn hinge was loose and had some end play. I had some .003 brass shim stock handy so I cut a small strip, enough to wrap the bushing almost once, and placed it back into the pivot end. When replacing the screw I used extra strength thread lock. Set the tension on the screw for desired resistance in the pivot. This mod is very easy and takes about 5 minutes each and is well worth it. Absolutely no slop at all after the shim.
