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RE: need cg help
This is the old Hobbico Viper low wing I believe? They never did fly very good, at least I didn't think so and most were heavy pigs. The 2 5/8 - 2 3/4 sounds about right to me, could you possibly have a sloppy servo in there that is not centering properly? I'd swap out the elevator servo and see if that helps.
Posted on: 5/15/2013 8:21 AM by Author "daven"
in the forum "Q-500 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11512218
RE: Stumbled on a VORTEX!!!
ha ha, will that be a predator in cognito?
Posted on: 9/13/2012 7:12 AM by Author "daven"
in the forum "Q-500 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11227179
RE: Stumbled on a VORTEX!!!
I thought it was a great joke!
Posted on: 9/11/2012 2:49 PM by Author "daven"
in the forum "Q-500 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11225400
RE: DKT Q40
Current USA rules do not allow the DKT motor in 422.
Posted on: 8/10/2012 8:36 AM by Author "daven"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11188159
RE: My new Q40 STREGA airmodel
Those molds look spectacular.
Posted on: 8/9/2012 9:29 AM by Author "daven"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11186989
RE: OS AX 46 needs more power
[quote]ORIGINAL: BiggerDanno [quote]ORIGINAL: daven The OS AX .46 is faster the OS FX .46, well documented in our area as we have been racing those motors for somewhere around 15 years. Ignore your RPM / PITCH calculations, I won a ton of races using a standard APC 10x7 Sport Prop. A couple of the APC pylon props do work, I believe many of them are using the 9 1/2'' x 8.5 N (Single N
Posted on: 8/3/2012 12:20 PM by Author "daven"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11179839
RE: OS AX 46 needs more power
Witht those mods, your motor will be illegal for racing.
Posted on: 8/3/2012 12:16 PM by Author "daven"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11179832
RE: OS AX 46 needs more power
The OS AX .46 is faster the OS FX .46, well documented in our area as we have been racing those motors for somewhere around 15 years. Ignore your RPM / PITCH calculations, I won a ton of races using a standard APC 10x7 Sport Prop. A couple of the APC pylon props do work, I believe many of them are using the 9 1/2" x 8.5 N (Single N, not double NN). Good luck.
Posted on: 7/31/2012 2:05 PM by Author "daven"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11176260
RE: carbon fiber rods (where to order)
Another source, a bit cheaper. www.darrolcady.com
Posted on: 7/6/2012 6:46 AM by Author "daven"
in the forum "Composites Fabrication And Repair"
http://www.rcuniverse.com/forum/fb.asp?m=11145121
RE: Q40 Piston height
I ran most of my SS heads at .016 on Q40 motors, not quite as tight as Randy. Also, don't get hung up on ground RPM numbers. Start at .015- .016, and fly it (if you can use a gun, or other speed measuring device) and find out where you are. Then lower it a bit and do it again and compare. You may get higher ground RPM with the tighter head, but that doesn't mean you will go any faster. These motors unload more than your standard sport motor, and leaving the head a little higher with a slightly smaller pitch prop and your unload could easily wipe out any gain from a higher pitch prop with a tighter head.
Posted on: 7/3/2012 7:40 AM by Author "daven"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11141164
RE: Q40 Piston height
Does it run ok? Its most likely correct if it is. I would only mess with it if it was running poorly. Its a tricky subject unless you have the right tools, is there anyone in your area that races that could show you? There is a lot of nelson guys in CA, but I understand it is a big state...
Posted on: 6/26/2012 5:13 AM by Author "daven"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11132154
RE: i want speed plane
A great planes viper ARF and a .46 sport motor will get you right around 120 mph.
Posted on: 6/2/2012 6:16 AM by Author "daven"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11103615
RE: Telling difference between Nelson Q40 LS & Q40 SS
Does the muffler have "LS" engraved on it near where it connects to the motor?
Posted on: 5/25/2012 1:05 PM by Author "daven"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11094561
RE: Racing Sticker, Application and Removal
they get really bad when you don't wax and don't take it off for over a year :) I like the race glaze, easy to apply and remove... Good enough for the WC, good enough for me.
Posted on: 5/22/2012 10:10 PM by Author "daven"
in the forum "General Racing Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=11091311
RE: Battery use info
I think I'm the only guy still using NIMHS :)
Posted on: 5/22/2012 10:08 PM by Author "daven"
in the forum "General Racing Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=11091310
RE: head shims
Contact Mike, I'm sure he can sell you some, he is now producing the Nelson motors. Mike Langlois 6024 Smithwood Rd. Liberty, NC 27298 PO Box 216 Julian, NC 27283 Tel no: 336-685-0016 Fax: 336-685-9195 Email: ml@aeroprecisionmachine.com
Posted on: 5/8/2012 8:25 AM by Author "daven"
in the forum "Q-500 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11072954
RE: AR-6 Wing mold construction
just two cans of bud?
Posted on: 4/16/2012 6:55 AM by Author "daven"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11043987
RE: skinned hinge materal
I love your idea with the Tape Denis!
Posted on: 4/12/2012 1:25 PM by Author "daven"
in the forum "Q-500 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11039284
RE: skinned hinge materal
It wasn't me actually but a local racer here that showed me... I just showed you guys :)
Posted on: 4/12/2012 1:24 PM by Author "daven"
in the forum "Q-500 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11039282
RE: New to me Profi engine
I like the cox conquest .15 in the background :)
Posted on: 4/11/2012 9:39 PM by Author "daven"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11038462
RE: AR-6 Wing mold construction
building a parting board on the bar, only in Wisconsin :)
Posted on: 3/28/2012 5:44 AM by Author "daven"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11018269
RE: Intimidator II Construction Thread
Gary, Scott, I have never used the 1/8" tube over the CF tubes and never had an issue, just not sure it is necessary.
Posted on: 3/27/2012 7:39 AM by Author "daven"
in the forum "Q-500 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11016950
RE: Havok and Rattler....New Q500 Kits
Looks very nice.
Posted on: 3/26/2012 11:37 AM by Author "daven"
in the forum "Q-500 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11015806
RE: Intimidator II Construction Thread
that hayes mount listed above works fine and accoplishes two things. 1. Its a long mount so you can move the light .25 sized motor out on the beams to help balance the plane. 2. The bolt pattern for that mount matches the commercially avaialble back plate moutns for 426 and 424
Posted on: 3/19/2012 12:20 PM by Author "daven"
in the forum "Q-500 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=11007152
RE: September Fury - a new Q-40 design
I'm one of those Lee :)
Posted on: 3/8/2012 2:24 PM by Author "daven"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=10991881
RE: September Fury - a new Q-40 design
I think it looks great, and I'm not sure why a trough / dimple wouldn't work just fine... From the pictures it looks like the motor is mounted upright? Is that how you are intending to do it...?
Posted on: 3/6/2012 8:22 AM by Author "daven"
in the forum "Q-40 Racing"
http://www.rcuniverse.com/forum/fb.asp?m=10988672
RE: V-Tail surface movements
another way to remember is that they move the opposite way of the ailerons....
Posted on: 3/4/2012 2:48 PM by Author "daven"
in the forum "General Racing Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=10986327
RE: Klass Kote paint issues
I tend to over reduce as well, but not a whole lot... Don't have an exact amount, but approximately 5-10% more thinner than color and catalyst would be a good ballpark. I use the cheap harbor freight guns as well and have been relatively happy, just do a good job of cleaning them when you are done and they last.
Posted on: 2/20/2012 8:05 AM by Author "daven"
in the forum "Composites Fabrication And Repair"
http://www.rcuniverse.com/forum/fb.asp?m=10967383
RE: WHY!!!
I agree with you on this one, I wouldn't want a performance motor from someone that had treated it that way. If they didn't care about the case, did they care about the break in? How did they run it? etc...
Posted on: 2/20/2012 4:38 AM by Author "daven"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10967131
RE: Jett muffler Red vs black on ASP XLS 52
the question is, ground rpm means little, whats it doing in the air while the motor is unloading on the prop?
Posted on: 2/8/2012 5:31 PM by Author "daven"
in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10950444
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