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RE: need cg help
The worst flying quickie I ever flew had a positive wing and negative tail.. It didn't matter what I did I couldn't get it to fly right.. It wasn't mine but the guy that owned it told me to take it and fix it or trash it.. I cut off the tail and reset the wing making sure everything was at zero.. Set the CG and it flew pretty well.. Then, promptly midaired with the guy who gave it to me the week before.. Carma I guess.. [;)]
Posted on: 5/15/2013 6:50 AM by Author "diggs_74"
in the forum "Q-500 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11512134
RE: need cg help
I guess I would start looking at the incidence on the firewall, wing and tail.. The center line of the engine doesn't have to be the center line of the fuse as long as it's straight.. Assuming the firewall is only 2.25" square, it can't be that far off anyway..
Posted on: 5/15/2013 5:26 AM by Author "diggs_74"
in the forum "Q-500 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11512066
RE: AR-6 Wing mold construction
Not sure about the Johnson's but I'll probably pick some up and try it on the stab mold.. PVA for sure though.
Posted on: 7/25/2012 1:42 PM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11168952
RE: AR-6 Wing mold construction
Not being one to go back on my word, I am sorry to say I am once again attacking a FG wing mold for the AR-6. After learning that my foam core wing construction skills leave much to be desired, I figure a CNC plug and FG mold are the only solution. As Kevin posted above, he did some really top notch CNC plugs out of MDF that I will be finishing and make the mold from. This will ensure a straight and true finished product. Because the steps used are no different than what I've previously posted, I will not bore you all with the filling, sanding, priming, sanding etc and will just show the finished product. Hopefully, without bullet holes this time [8|]
Posted on: 7/25/2012 1:11 PM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11168915
RE: Quick Repair before the Nats !!
Minor correction to my previous post.. The tips are designed at 0 degrees.. However, this wing is at -0.5 degrees. I don't think my thumbs will notice but I thought I better set the record straight.
Posted on: 7/12/2012 12:00 PM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11152799
RE: Quick Repair before the Nats !!
Well, thanks for all the suggestions.. I ended up using Randy's version with a couple mods.. After a couple beers and finally a F**K it attitude I started hacking away. I started by blocking up the wing and making sure where I was at.. I had 2+ degrees of wash in on the left tip.. I also had about .5 of wash in on the right tip.. I figured since I was cutting I might as well fix them both.. Using my zona saw, I cut a diagonal line from the hinge opening on the bottom out to the LE of the wing tip. I then twisted it to where I wanted it and wicked in some foam safe thin CA.. After the smoke cleared, I put in some thick CA and kicked it.. This locked everything in place.. Other than looking like shit I now have both wing tips at .5 degrees of washout, like the original design has.. A little spot putty, some primer and a shot of paint and it's done.. I did end up heating the ailerons and twisting them to line up on the outboard side but they seem to be staying put. Thanks again.. See you in Muncie..
Posted on: 7/11/2012 8:45 PM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11152104
RE: Quick Repair before the Nats !!
Yep, that's the most likely fix I've been offered.. Looks like I'll be hacking on it tonight..
Posted on: 7/11/2012 1:34 PM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11151668
RE: Quick Repair before the Nats !!
Thanks Barry.. Like I said, it flies pretty good once it's trimmed but I'm trying to make it a respectable showing for this model as I plan on selling some in the future..
Posted on: 7/11/2012 11:53 AM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11151561
Quick Repair before the Nats !!
I posted this on the NMPRA site but thought I might as well post it here too. Ok, so all this work I've been doing on my AR-6 has the prototype ready for next weeks Nats(if you are going, please do not look at the paint job, it might be my worst ever, yes, it's that bad).. However, I have a severe warp in the left side that I can not get straightened out.. I've used the old Lyle trick with the heat gun and for some reason the wing will not set in the new/straight position.. I thought I would solicit any advice from the guys that used to, or still do, run foam core wings.. I had never attempted a Q40 foam wing before and won't again.. Molds are coming soon. If all else fails, I'll fly it with the 1/8" of aileron trim it requires but it would be nice to not have that as it will surely add to the normal crappy times I get in Muncie [8|] The only positive is that I've got a pretty good engine on it and once it's trimmed it seems to groove pretty well. I've got 2 days (including today) to make this repair.. If you've got something quick and dirty, that would be great. Thanks in advance..
Posted on: 7/11/2012 10:56 AM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11151483
RE: September Fury - a new Q-40 design
I may take it on once I get the AR-6 wing mold done.. I'm doing another fuse mold for the AR-6 this winter to ease the manufacturing.. Other than that I will be without a project and we can't have that..
Posted on: 7/10/2012 8:51 AM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11149985
RE: AJ-2 Construction Revisited
Looks great Scott.. Can't wait to hear how it flies..
Posted on: 7/6/2012 11:08 AM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11145462
RE: AR-6 Construction Thread
[quote]ORIGINAL: GSJames Hopefully, after this years Reno race, there will be a new F1 to model. ''Fraid Knot'' should make it this year and has a unique wing planform that should make it stand out from the crowd. [/quote] I wonder if the designer would let us do a Q40 of it.. [;)]
Posted on: 7/2/2012 10:22 AM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11139936
RE: AR-6 Construction Thread
I remember when I started the AR-6 thinking there wasn't one.. Then one day I open up the NMPRA site and there yours was.. I just about didn't even do it.. Obviously, I did it anyway.. Looking back, my racing life would have been much less frustrating had I quit back then [:D]
Posted on: 7/1/2012 3:46 PM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11138959
RE: AR-6 Construction Thread
Don't worry Gary, yours is coming.. After the nats [;)] As far as the thumbs go, they fly great when set up properly.. It's the one shot at landing that gets most into trouble when they start flying them..
Posted on: 7/1/2012 7:55 AM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11138513
RE: AR-6 Construction Thread
Instruction will come, just not high on the priority list at the moment. I won't be doing any more until after the nats.. They aren't perfect yet but this was only the 5th one I've done. After the Nats I will finish the wing and tail molds and be offering a full composite kit. Please PM me with any questions regarding the "builder" version. Thanks Scott, can't wait to see how it goes.
Posted on: 6/28/2012 5:46 PM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11135752
RE: MUBU II F5D Build
Neat little servos for sure.. However, since I'm already adding weight with the 426 engine, I'll stay with something beefier [;)] I bet they would be great on the v-tail though.
Posted on: 6/28/2012 11:49 AM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11135294
RE: i want speed plane
That's not far from the truth CP.. When I'm flying a Q40 at the local field everyone asks "how can you fly that?".. I try telling them that they fly great and only go where you point them.. As long as you don't point them at the ground you're ok..[;)]
Posted on: 6/7/2012 6:05 AM by Author "diggs_74"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11109836
RE: AR-6 Wing mold construction
Hey Kevin, I sent you a PM.. Let's talk.. Thanks.
Posted on: 5/23/2012 1:42 PM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11092044
RE: North Central Pylon first 426 race of 2012
No worries Scott, I leave that in the car [:D]
Posted on: 5/21/2012 1:11 PM by Author "diggs_74"
in the forum "Q-500 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11089135
RE: North Central Pylon first 426 race of 2012
Yep, that's like 4 years in a row I've had a mid-air at your race.. Luckily the plane flew like sh!t so it wasn't a huge loss.. Maybe next year I'll cook the brats and guard the beer instead [:D]
Posted on: 5/21/2012 9:22 AM by Author "diggs_74"
in the forum "Q-500 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11088843
RE: Battery use info
[quote]ORIGINAL: luv to race I have put 17 flights on a Q40.. using the Team Orion 600mah LiFe pack.. ALL ''high voltage'' JR 3711 digital servos, 4 in total.. Maybe 4 or 5 minutes per flight with the radio on, that's a guess of course.. Charged the pack.. Only put about 285mah in the pack. So that was about 16.5mah per flight.. Technically you could fly many more flights.. But that was about my limit [:D] Randy Bridge [/quote] Wow, I probably don't get 17 Q40 flights in a year.. If I do, it's not much more than that. I suppose if they would fly with skis on them I could do better [;)] I'm still old school, 1000mAh NiMh packs I build my self.. After a day at the Nat's last year I think I put in about 90-100 mah back in depending on set flights and that sort of think. 9650's on everything but the fuel shut-off.
Posted on: 5/18/2012 10:35 AM by Author "diggs_74"
in the forum "General Racing Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=11085880
RE: Frustrated with hangar rash!
Gary, just think of the dents as vortex inducers.. You know, like the dimples on a golf ball [:D]
Posted on: 5/15/2012 10:38 AM by Author "diggs_74"
in the forum "Q-500 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11081692
RE: AR-6 Wing mold construction
That could be Dave.. I didn't cook the mold while building it but I did have some lights on it as my basements a bit cool.. You may be on to something there..
Posted on: 5/10/2012 10:53 AM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11075951
RE: AR-6 Wing mold construction
First of all Gary, I'm a very good shot, it's just that the mold didn't do much with the 9mm, even with 13 rounds thru it.. That's why the 12 gauge came out [;)] Scott, if I have them CNC cut I would have the female cut.. No more mold making for me, well, not wings at least..Probably...maybe.. Let me win Randy? You guys called me a cut on #3 every heat last Saturday!! Must have been my caller [:D]
Posted on: 5/9/2012 5:45 AM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11074060
RE: AR-6 Wing mold construction
Thanks Dave.. Yeah, I'll figure something out.
Posted on: 5/8/2012 5:41 AM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11072763
RE: AR-6 Wing mold construction
Well, it's final.. I guess I'm going to find someone with a CNC to cut some molds.. The bottom half of the wing mold is unrepairable.. Especially now.. I had to yell at my dog for trying to retrieve it before I was finished with it.. Yes, I'm a yankee redneck.. I'm still not sure what happened to cause the issues.. Possibly the paint wasn't cured and the solvents broke down the wax.. I guess we'll never know. [link]http://youtu.be/FqY97FZ42AQ[/link]
Posted on: 5/7/2012 5:45 PM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11072264
RE: AR-6 Wing mold construction
I was used Part-All on this then some Flex 2.0 release agent I've been using on my fuse layups.. It worked really well on that, not sure what the issue was here.. I think I can make it work, at least well enough to get a plug done.
Posted on: 5/7/2012 7:16 AM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11071407
RE: AR-6 Wing mold construction
Thanks Scott.. The parting board is fine, it's sitting on the workbench in the garage.. However, I may have been a little hasty with my conclusion.. I was able to clean up the top half of the mold and it looks usable, and actually turned out pretty good.. The bottom half is worse off but I may be able to make use of it if I can get it cleaned up. The thing I can't figure out is that I can see the wax under the paint from the plug when I was scraping it off with a old credit card.. I'm still not sure why it stuck so bad.. I may try and dissolve the paint with some lacquer or acetone.. It shouldn't hurt the mold surface other than stripping any of the wax that's left on there.. When I get home from work tonight I'll try that on a small area. Even if I can get it fixed up it's going to take a while to get it ready for use..
Posted on: 5/7/2012 5:16 AM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11071268
RE: AR-6 Wing mold construction
Got up early this morning to pop the mold apart.. The flange area came apart nicely followed by the plug coming apart just as nicely.. The skins of the plug are more glued to the inside of the mold than the foam core they were originally glued to.. That's right, it's all junk.. Hundreds of dollars and countless hours and I haven't got a f'ing thing to show for it.. Sorry to everyone who wasted their time following this thread. I'm not sure what happened just yet.. It was waxed numerous times and I PVA'd what I thought would be the difficult areas and even some of those stuck.. I may try and clean it up but I'm guessing that's a waste of time..[:o]
Posted on: 5/7/2012 3:49 AM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11071183
RE: AR-6 Wing mold construction
One side down, one to go.. Yeah, more waxing [8|]
Posted on: 5/2/2012 7:51 PM by Author "diggs_74"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11066221
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