RE: 90 four stroke IMAC plane
AeroWorks has some good ones that will fit the bill. One thing to remember is the YS91 has as a lot of power when run on 30%. I would look at something that was close to the weight of the plane the YS came out of and start there. I'm thinking the AeroWorks 60-90 Yak or Extra fits the bill quite nicely http://www.aero-works.net/store/ I had a YS91 in an older Goldberg Ultimate a few years ago and what a power combo that was. I then bought the YS110 and then it became ballistic. Don't remember the weight though
Posted on: 11/4/2009 1:35 PM by Author "bubbagates" in the forum "IMAC"
http://www.rcuniverse.com/forum/fb.asp?m=9227816

RE: Castrol Aviator Graphics
Check this page down near the bottom http://mikegoulian.com/photos-new/2008-photos There is also quite a few on this page near the bottom http://mikegoulian.com/photos-new Just do a search for either Mike Goulian or Michael Goulian. He was sponsor by Castro for a while on his Cap, Redbull Edge and his Extra Also, here is a side view of what looks like a newer scheme http://www.castrol.com/castrol/genericarticle.do?categoryId=9000657&contentId=7005216 And Yet another Castrol Sponsored pilot with a sightly different scheme http://www.castrol.com/castrol/genericarticle.do?categoryId=9000657&contentId=7005217
Posted on: 10/31/2009 11:21 PM by Author "bubbagates" in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=9218948

RE: GP Cap 580 1/3 scale
Guys, On the servo choices for the rudder, A single 8711 or 7955 will be plenty. I had my grubby paws on an Eagle version and it was setup with 7955's all around using a single one per surface and powered by the DA100L turning a 28x10 Mezjlik prop and I was able to do KE loops and not think twice. you'll save 2 ounces per servo going to singles so losing one per wing and one on the rudder you are looking at 6 ounces in weight not including the extra linkages and extensions so probably close to 9 or 10 ounces and lots a lot I mentioned the 8711 because I have been using one on a Comp-Arf Extra 260 at 29lbs for 2.5 years now and it will do KE loops all day long without any blow back You could easily get away with a 5955 on each elevator but I think I would want the 7955 on the ailerons and rudder and if you want even more reserve in the servo then the 8711 would be the way to go on everything and there is nothing wrong with having a little extra servo power especially if you are going to 3D the thing As far as the 6 channel Futaba, I would say that a better choice would be any of the 9 channel radios, both Futaba (sorry I'm not familiar with Futaba radios so I cannot recommend at certain radio) or a JR 9303 2.4 which you can get one for around 250 used and the 9303 is a great radio. You do not need a JR 10X or a JR 12x for this plane though it's certainly not bad having one. If you are getting glitches and have done everything else, I'd start looking at the receiver. It sounds like you are getting it on smaller planes (glow) though I'm not sure by your description The main difference is a 2.4 radio setup will be less likely to give you any glitching. However they are not fool proof, a loose spark plug, a bad plug cap, bad ignition or plug wire can swamp a 2.4 setup as well. Been there, experienced that, Another big difference with 2.4 is you will feel more connected with the plane, the resolution is much higher than 2.4
Posted on: 10/31/2009 6:34 PM by Author "bubbagates" in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=9218325

RE: Set up Help
Glad you got it worked out [:D] Don't feel bad, I can't measure as well let alone cut a straight line in a piece of wood, even with a laser line to follow [8|]
Posted on: 10/31/2009 6:18 PM by Author "bubbagates" in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=9218287

RE: Set up Help
[quote]ORIGINAL: Meekskin bubbagates, I have checked the straight and level flight at about 80 % power, chop throttle and the plane will stay on a level path until the airspeed drops. I have moved the fuel and smoke tank forward about 3'' and have also moved 2 batteries forward (still behind CG) about 6 to 8 inches. The balance point in the book says up to 7 1/4 back from leading edge
Posted on: 10/31/2009 4:41 PM by Author "bubbagates" in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=9218098

RE: Set up Help
I'd go along with tail heavy but Jake forgot to mention one thing, when doing the 45 degree line, once you are inverted, get the plane on the line again and let go of the sticks, if it stays on the line for a while, meaning a few seconds like 10 or more then you are neutral, if it starts to drop the nose you are nose heavy, if it raises the nose you are tail heavy. Another thing could be engine thrust. Fly straight and level at about 80 percent power and do not touch the elevator, now chop throttle and see what the nose does, it should stay level until the airspeed starts to drop then the nose will start to drop, this is perfectly normal, if it goes up you have too much down thrust and will cause what you are getting as well
Posted on: 10/30/2009 9:32 PM by Author "bubbagates" in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=9216441

RE: Compsite ARF extra 260 crash.... trying to confirm the reason.
[quote]ORIGINAL: Ragz Thanks I am already in touch with Mr. Emmerich Deutsch, owner of powerbox regarding this issue. [/quote] Yea, he's a really good guy. I had the royal do some funky things on channel A as I explained below. Sent it back to him, got it back after they replaced the EEPROM and all is well now. I did mean channel by channel initialization and it's done at the same time as doing the end-points. I'm wondering if you had the same problem I did. It just took a bit longer to happen. One thing I failed to mention that happened with mine is when it locked up on channel A, the batteries would be drained really really fast but not before the wires would start to melt going out to the servos. I would try to power up the Royal and see if the settings are still there and the servos are moving exactly as you set them. I had to actually hook up spare servos to each channel in the same plug locations on the Royal to find the problem. The settings looked fine but once I had the servos on channel A and I would move the stick, they would go in opposite directions. Damndest thing I ever saw. Would I still use a Powerbox, yep, I just ordered the 12 channel one for my next project. As I mentioned, I've setup tons of different PB's for others. They are pretty straight forward. The only thing is if you change radios, then you have to go through the whole initialization process again. I do not use their batts though, I like having 10,000+ milliamps on board for the receiver so I use 5200MaH Fromeco's
Posted on: 10/27/2009 7:37 AM by Author "bubbagates" in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=9205397

RE: fuzzy velcro trick to stop vibration
[quote]ORIGINAL: smarks Yes, have done it. Works good, just make sure to not use too thick of velcro that it causes too much resistance. You really only need it on one side. This technique works good for servos with high resolution that chatter trying to find center. JR servos are known for doing this. Also, my Hitec 7955's do it. Make sure to check the gear wear after a while though, the gears on JR servos are known to wear out quickly. [/quote] I'm curious about using this method for getting a servo to stop hunting for center. My understanding is that if a servo is doing that then the servo needs to have work done on it. I just recently sent two 8711's back in for this problem. They came back and now I no longer have the problem, no cost at all to me. The only time I've seen 8611's does this is when there was slop in the linkage or servo geartrain. I cannot say about Hitec, I haven't used them for some time since I always would end up with them not returning to center after a while and for IMAC style flying, you definitely want them to return to center everytime and no hunting for center and no delay at all moving the surface. Again, just my experience, your mileage may vary [;)]
Posted on: 10/26/2009 2:25 PM by Author "bubbagates" in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=9203439

RE: fuzzy velcro trick to stop vibration
Wouldn't that effect centering of the surface as it comes back to neutral plus cause a delay in the surface moving in the first place not to mention the extra load on the battery as the servo fights to overcome the extra drag and quicker wear on the servo, and linkages themselves If someone is getting vibrations from a gas engine I'd be looking at prop balance, spinner balance and tuning, not to mention linkage setup and tightness
Posted on: 10/26/2009 12:54 PM by Author "bubbagates" in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=9203249

RE: Compsite ARF extra 260 crash.... trying to confirm the reason.
Since you lost complete control then something took power away to the point that it would not recover. Based on your description and the servos you used, I'd bet you overcame the 10amp limit and before it could recover, if it ever would recover it was too late. The other thing is that maybe the Royal and Emcotec overcame the limit but the receivers went into a reboot and never connected back to the transmitter. Also, and this is important when it comes to the Royal, did you set the Royal and Transmitter up to work together. There is a procedure you must do (called initialization) on a per channel basis and if you do not do that before you setup the servos on the Royal, you will have loads of issues. Like others have mentioned, the batteries may not have been able to deliver the load. My only question would be why did you use the Emcotec when the LCD screen that comes with the Royal will do everything you wanted to find out plus give you the load on a per servo basis (not history, just real time) and plugs directly into the Royal. Actually I just looked up the specs for the emcotec (PER CHANNEL) Max. continuous current per channel 10A (flow rate) Max. peak current per channel (10ms) 30A (flow rate) Something tells me you had some servos binding right from the beginning and as soon as you did the snap, you loaded the system to the point several things could not recover. Just a suggestion, the next time just use the LCD screen that comes with the Royal. A few simple button pushes on the regular on/off switch and you can get loads of info and can easily be mounted to make it act like a dashpanel. Several places that sell them make extensions for the cable it uses so that you leave on end plugged into the Royal and the other end just connects to the screen, That way if you are mounting the screen in the Canopy, you do not have to try to reach into where the Royal is mounted, just unplug the extension from the screen. BTW, the Royals do fail, I had one that was not holding it's setting on a single channel (adjustable channel A), I cooked 6 8611's in two days. Everything was fine until I shut the plane off for more than an hour, then all setting would go away for that channel. The second day we sat at the field and replaced the servos, we checked, checked and checked some more and everything was fine and I have configured quite a few of Powerbox products for people, I did 3 flights back to back then sat for an hour or so. Got up, fueled up, turned everything on and by the time I walked to the front of the plane from the side to start the engine, the same channel had already cooked the servos. (you know it's bad when smoke is coming from the root of the wing). Sent the unit back, they found the EEPROM was faulty as well as one regulator. They replaced it, sent it back,, it worked fine up until I sold the plane it was in, I know it's still in use today
Posted on: 10/26/2009 10:17 AM by Author "bubbagates" in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=9202898

RE: Question for Yakers
You better make that a case for Jake, I've seen him suck up a 6-pack in no time at all....and that's when he's just warmin' up
Posted on: 10/26/2009 9:49 AM by Author "bubbagates" in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=9202837

RE: Question for Yakers
You will be buying the beer. The prop will lose some efficiency and you will notice it on the uplines
Posted on: 10/25/2009 12:53 PM by Author "bubbagates" in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=9200703

RE: PA glowin' videos
replied
Posted on: 10/18/2009 11:48 AM by Author "bubbagates" in the forum "Giant Scale Aircraft - General"
http://www.rcuniverse.com/forum/fb.asp?m=9182691

RE: ign causing failsafe
Joe, Even 2.4 can get swamped if the signal is strong enough. Since you have been pulling on the plug cap improperly with pliers and most likely from the side and also had to repair the cap at the joint in the wire, that would be my first bet. Vibrations, especially from a big single cylinder engine will eventually show you the weak points on any plane. To give you an idea, I installed a DA170 into my 42% Extra, 45 flights later I was taking hits and the engine was roughing rough. I got the plane down and found both plugs a bit loose. I tightened them and have not had a problem since. I t was my own fault for not checking them when installing the engine. Yes, carbon wires can be a bit of an issue, especially when treated roughly. Also, if any of the protective braiding around the wire is damaged, which is also the ground for the plug/ignition connection, you will also get interference even on a 2.4 if the damage is severe enough If you are flooding enough to have to do pull the plug every so often, then you are way too rich as well on the low end. Remember, you never ever have to run a gas engine rich, you do need to properly tune it and if cooling is an issue and you are running it rich to get it to run cooler, I'd be looking at airflow as well as oil mixture. Oil mix and airflow are what keeps a gas engine cool. Running one rich robs it of power and fouls the plug and causes flooding. The low end needle on a DA85 is very sensitive, so start out with no more than a 1/16th of a turn at a time until it can idle for a long time without the idle speed changing. Then do the high speed needle to get max rpm and drop it back around 100 rpm. You are looking to get instantaneous response to the throttle. Fly it and go vertical for all it's worth and listen to make sure the engine is not sagging on the upline, if it is, then it's too lean. Do all the adjustments with the cowl on.
Posted on: 10/18/2009 11:45 AM by Author "bubbagates" in the forum "Giant Scale Aircraft - General"
http://www.rcuniverse.com/forum/fb.asp?m=9182686

RE: PA glowin' videos
where was this flown at. I see you're in Mt Joy and I'm in E-town and need a new local club to fly at with my 40% planes
Posted on: 10/18/2009 11:28 AM by Author "bubbagates" in the forum "Giant Scale Aircraft - General"
http://www.rcuniverse.com/forum/fb.asp?m=9182641

2009 North East Regional points are finalized
Just got word the final numbers are posted for the region, there were no ties so we have all clear winners Here is the link to see the Regional contest results as well as the regional points winner http://www.mini-iac.com/Regions/Northeast/NEContestResults/tabid/100/Default.aspx I will need the first three winners in each class to contact me via email at nerd@mini-iac.com or if you have my private email address feel free to use that one I will need your mailing address in that email so I can have the awards made up and sent directly to you. Just in case, here are the first three regional winners in each class My sincerest congratulations to all the Regional Points winners. I will be writing a full region report this week that will be posted on the IMAC site. This report will also include the happenings at the regional contest. I wiil post back in this thread once I have it finished Basic: Puccio, Frank 4994.88 Stanton, Steve 4703.10 Stang, Phil 4592.97 Sportsman: Harrison, Scot 5000.00 Davis, Alex 4992.57 Meiselbach, Roy 4888.35 Intermediate: Deslauriers, Isabel 5000.00 Berger, Stan 4967.30 Lairsey, Bill 4890.43 Advanced: Buyukgurel, Ray 5000.00 Banks, John 4988.49 Wallace, Troy 4908.91 Unlimited: Westdorp, Neil 5000.00 Michael, David 4879.40 Foveaux, Brian 4858.92 Seniors: Lairsey, Bill 3950.95 Gleicher, Jerry 2752.50 Melville, Scott 968.99 -Bill James NE Regional Director
Posted on: 10/12/2009 12:17 AM by Author "bubbagates" in the forum "IMAC"
http://www.rcuniverse.com/forum/fb.asp?m=9165556

RE: Chapman Cap 580 Third Scale(Splat Vers)
Phil, That's exactly the numbers I use on my 40% Carden Cap 232 and he same numbers the 27% Great Planes Cap 232 has, at least that is what the Great Planes support people told me 2 years ago when I asked
Posted on: 10/5/2009 11:20 PM by Author "bubbagates" in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=9150014

RE: IMAC Prop Selection????
Tom, Sorry, I cannot give you any input on the Biela. I know a few that use them and love them but no one on a DA170. I suspect that since they are a wider/thicker blade you might be better off with something 3-Blade in the 28 inch range. That would keep the RPM's up and allow for a better upline and still have the downline braking
Posted on: 10/5/2009 10:09 PM by Author "bubbagates" in the forum "IMAC"
http://www.rcuniverse.com/forum/fb.asp?m=9149837

RE: IMAC Prop Selection????
Tom, I'm using a 29x12 Mejlik 3-blade on a 42lb Jtec with the same exhaust setup. Nice and quiet and still more than enough power for the uplines with 2 snaps. I suspect that once I get another 5 gallons through it I'll be changing out to a 30x12 3-blade as I can rip the 29x12 if the air is cool enough and I'm only 7 gallons into the engine A good 30x13 2 blade works fine but you can rip that one pretty good
Posted on: 10/5/2009 9:30 PM by Author "bubbagates" in the forum "IMAC"
http://www.rcuniverse.com/forum/fb.asp?m=9149747

RE: A little more Lanier 30% Edge 540T help please
[quote]ORIGINAL: petec I have my Edge getting closer to being complete but need a little more help from you guys. [/quote] Congrats. [quote]What covering is on this bird? Monokote? Ultracote? Chinacote?[/quote] Sorry, not sure [quote]Any suggestions on tank placement? I fly pattern primarily and my YS engines allow me to put my tank on the CG. Will a walbro carb pump fuel from that far?[/quote] It sure will, you'll be fine. On large scale (30% and larger} typically have the tank on the CG. [quote]Does anyone have any left over parts taking up space you would like to send to a nice new home so I can have a spares if something bad happens? even if the stuff is banged up I might be able to use them as patterns for new parts. [/quote] Nope, sorry
Posted on: 10/3/2009 8:26 PM by Author "bubbagates" in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=9144333

RE: Great planes ultimate 160
[quote]ORIGINAL: OldFart1 Problem solved!! As many (or all) of you suspected, it hinged around ''how and where'' I picked the plane up (and having another two pairs of eyes and hands last night didn't hurt either) What I did was to transfer the 6-3/8'' mark to the top of the top wing, and extend it laterally out to the wingtips (all on that blue painters tape). My buddy and I then picked the plane up by the bottom of the top wing at those marks - voila!, we're real nose heavy. Removed the lead, back to neutral/slightly down CG. I'll maiden it this way, then probably move the RX battery back to the plate I put in the fuse when I decide to shift the CG aft. Whew!!! [/quote] Glad you got it sorted out
Posted on: 10/3/2009 5:45 PM by Author "bubbagates" in the forum "3D Flying!"
http://www.rcuniverse.com/forum/fb.asp?m=9144071

RE: IMAC maneuvers
BTW, you answered my question on the Cap the other day and to let you know I flew it last night and OMG what a puddy tat she is. I used 1 degree positive, balance on front of the wing tube and just perfect for my style of flying. Absolutely no elevator trim, hands off inverted 45 degree upline pulls to the nose ever so slightly. Weight is roughly 39lbs on a DA170 on MTW110K cans and yes I am still able to get to the front wing bolts, I used a set I had for my Jtec 330L and just leave it in the fuse with the threaded part hanging out and I can just get my hand down between the can tunnel and fuse side Now I remember what I was missing when I lost my last Cap. This one and I will have a very long relationship in IMAC.... Thanks again for the help on that one
Posted on: 9/29/2009 8:39 AM by Author "bubbagates" in the forum "IMAC"
http://www.rcuniverse.com/forum/fb.asp?m=9132561

RE: IMAC maneuvers
Thanks Danny for the correction, time for me to go refresh my memory on the families.
Posted on: 9/28/2009 9:30 PM by Author "bubbagates" in the forum "IMAC"
http://www.rcuniverse.com/forum/fb.asp?m=9131493

RE: H9 27% Extra 260 rudder vibration
Is the engine running a bit rich? A rich engine will not run smooth and cause lots of vibrations. Also, remember the bigger the prop the more mass is turning. Also, did you balance the hub of the props as well as the blades? Easy to tell if the hub is out of balance, jsut put the blades at a 45 degree angle (10 and 4 on the clock as well as 2 and 8) and see it stays there. If not the hub is out of balance
Posted on: 9/28/2009 9:27 AM by Author "bubbagates" in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=9129546

RE: IMAC maneuvers
from a level horizontal line Pull to a wind corrected, wings level vertical upline Pull to a wings level inverted 45 degree downline execute one half roll to upright Pull to a wings level, wind corrected horizontal line Things to look for The pulls must be the same radius with the first pull dictating how the rest of the pulls should be done, the half roll must be centered on the 45 degree line Sharp pulls are a no-no and will get points taken off The vertical line can be as long as you like, same as the 45 degree line, just make sure you have a line before and after the roll on the 45 and that line MUST be equally, this is the biggest points killer of them all. Most important, you wings MUST remain level at all times and the proper amount of wind correction must exist at all times. You are not judged on the "look" of the plane, you are judged on the track of the plane, which means the CG must remain on a given line at all times. You could be pulling a vertical line, yet be yawed to one side 30+ degrees and that would be perfectly acceptable as long as the CG is tracking a perfectly straight line
Posted on: 9/28/2009 9:22 AM by Author "bubbagates" in the forum "IMAC"
http://www.rcuniverse.com/forum/fb.asp?m=9129534

RE: Great planes ultimate 160
[quote]ORIGINAL: OldFart1 Chad hit the nail on the head. CG is CG, it's a point (or a range) irrespective of weight, engine type, etc. It shouldn't make a difference whether I use the ''handle method'' or the ''traditional'' method - both should (and do, based on rereading this thread) arrive at the same conclusion. The handle method is just a lot more convienient :) I'll see what putting it on a CG machine tells me, plus I'll have a second set of eyes tonight to look at it. [/quote] Jeff, The handle method works well. I understand the need to try it both ways but after doing two the exact same way I had the follwoing results IN FLIGHT, where it matters most using the handle. I pulled a 45 degree upright climb, rolled inverted, got the plane back onto the 45 degree line and let go of the sticks, the nose slowly dropped to level in about 5 to 7 seconds which, for me is perfect. I do all IMAC planes like this, I get the CG close to mid-range of what the manufacturer says, then go fly it. Since I pretty much do all IMAC style flying, slightly nose heavy works best for me for spins and snaps
Posted on: 9/24/2009 2:48 PM by Author "bubbagates" in the forum "3D Flying!"
http://www.rcuniverse.com/forum/fb.asp?m=9120772

RE: Mini Me ??
Now that's cool....[sm=thumbs_up.gif] Wanna guess which one has the better climb rate [:D]
Posted on: 9/10/2009 7:02 AM by Author "bubbagates" in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=9083664

RE: 50cc WildHare 260-Need graphics,decals
Here's my WH 33% Edge he did 3 years ago The pics do not do it justice, all the checkboards, Edge logo's and WH bunny is all in halographic My early Aeroworks Yak is also on his website in the lower right corner of this link http://www.badbradgraphics.com/photo_1.html He also did all hte logos that are on my trailer, but I do not have pics of it
Posted on: 9/4/2009 8:47 AM by Author "bubbagates" in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=9069075

RE: 50cc WildHare 260-Need graphics,decals
check Bad brad Graphics http://www.badbradgraphics.com He'll do one for you if he doesn't already have one and he is very reasonable price wise and just a gret person to deal with
Posted on: 9/4/2009 8:01 AM by Author "bubbagates" in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=9069008

RE: minimum size for IMAC planes
[quote]ORIGINAL: lassecfc we dont have IMAC in denmark yet... :) 19 sep. we have the fist IMAC introductionshow.. http://www.rc-unionen.dk/nytforum/topic.asp?TOPIC_ID=43610 [/quote] Congrats!!!!
Posted on: 9/3/2009 10:42 AM by Author "bubbagates" in the forum "IMAC"
http://www.rcuniverse.com/forum/fb.asp?m=9066744