RE: Introducing the NEW Aeroworks Pitts Python ARF QB!!!  
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RE: Introducing the NEW Aeroworks Pitts Python ARF Q... - 12/29/2007 1:39:25 PM   
shundley


 

Posts: 27
Joined: 9/15/2004
From: Lennon, MI, USA
Status: offline 		All the aeroworks I have gotten never came with a manual but the last thing on the disk click on that its the manual.

(in reply to elderair)
       Post #: 101

RE: Introducing the NEW Aeroworks Pitts Python ARF Q... - 12/29/2007 2:51:04 PM   
elderair



Posts: 304
Joined: 1/16/2002
From: Plattsburg, MO, USA
Status: online 		Did you use the included washers when you spaced the engine out from the firewall? I currently have 3" spacers on my D/A but that may cause a slightly nose heavy condition. I needed all the nose weight I could get with my Yak. I don't think the appearance of the spinner sticking out a bit would look bad. I may try them during assembly just to see. It would probably only be 1/4" more than you will end up having. You will probably have to add the washers to the left side just to keep your vertical line straight while flying.

_____________________________

The only time you can have too much fuel is when you are on fire!

(in reply to reyn3545)
       Post #: 102

RE: Introducing the NEW Aeroworks Pitts Python ARF ... - 12/29/2007 8:51:02 PM   
reyn3545



Posts: 953
Joined: 7/1/2006
From: Alpharetta, GA, USA
Status: offline 		Other than the washers I just added, I only used the 2 1/2 inch standoffs. With the washers added to the right side, it looks perfect against the dummy radial, just about 1/8 clearance all around. I'll probably have to either add additional washers on all 4 corners or use a little rudder adjustment... we'll see how bad it is when it gets in the air.

(in reply to elderair)
       Post #: 103

RE: Introducing the NEW Aeroworks Pitts Python ARF ... - 12/31/2007 4:56:34 AM   
reyn3545



Posts: 953
Joined: 7/1/2006
From: Alpharetta, GA, USA
Status: offline 		Mark... find the guy that said this was a 12-hour build... and buy him a new watch battery!! His is dead.

Well, I'm just about there. Like a dilbert, I forgot to order fuel dots... so, the wheels should be here earl this week, the dots may be a few more days. I went with a smoke system (Sullivan)... but may be pulling it out. With it installed (tank, battery, pump, lines), the plane weights just over 19 pounds .

I'll probably have to change prop sizes (yep.. wait another week for mail order) and see if it helps, but I don't expect much from the 22x8 that pulled the Extra 260 around like mad. We'll see.

Overall, I'm very pleased with the build. It looks great.

< Message edited by reyn3545 -- 12/31/2007 4:57:56 AM >

(in reply to reyn3545)
       Post #: 104

RE: Introducing the NEW Aeroworks Pitts Python ARF ... - 12/31/2007 6:32:39 AM   
elderair



Posts: 304
Joined: 1/16/2002
From: Plattsburg, MO, USA
Status: online 		Good thing it has two wings. A bit of a pig isn't it. Not going to be tail heavy is it? Let us know.

_____________________________

The only time you can have too much fuel is when you are on fire!

(in reply to reyn3545)
       Post #: 105

RE: Introducing the NEW Aeroworks Pitts Python ARF ... - 12/31/2007 6:55:40 AM   
reyn3545



Posts: 953
Joined: 7/1/2006
From: Alpharetta, GA, USA
Status: offline 		I balanced it before I weighed it... with the smoke pump mounted on the motor box and the batteries mounted in the main tray, it balances perfectly at 2 1/4 inches behind the leading edge.

I'm thinking about a Vess 22A if the NX doesn't fit the bill.

(in reply to elderair)
       Post #: 106

RE: Introducing the NEW Aeroworks Pitts Python ARF ... - 1/1/2008 2:57:45 PM   
reyn3545



Posts: 953
Joined: 7/1/2006
From: Alpharetta, GA, USA
Status: offline 		If you don't have a servo programmer.... you'll need one to set up the ailerons. Since you're driving 4 servos with 2 channels, you have to take a couple steps to make sure that all 4 surfaces deflect the same with aileron input... make sure all 4 of your control horns are EXACTLY the same length, make sure your servo arms are as close to 90 degrees from the servo when the aileron is centered (don't worry about the angle of the control rod to the arm.. especially if you are going with 1 1/4 servo arms.

With all that setup properly, your ailerons should be very close to each other. If your ailerons aren't all centered on the wings, you'll need to get a programmer...or do what I did... borrow one from a buddy at the field. I was suprized at how easy they are to use, and you can really get everything dialed in perfect on the build table. Now we'll see how much adjustment it takes in the air!

While going through this exercise, I also apparently shorted out one of the 6 inch extension cables for the upper ailerons. I guess all the plugging and un-plugging that you do to check and adjust was too much. I may have made a few connections with the power turned on, I don't know.

When I determined that the cable was shorted, I thought back to the fuel tanks, lines, cabanes, all the electrical connections and everything else that I'd done since I put that cable in.... how much of that would I have to tear out just to remove and re-install?

As it turns out, all I had to do is remove the cabane. Since the lines run up to the rear cabanes, you can access the cabanes bolts without tearing out everything!

With the new cable in and everything set, all ailerons are dead on the trailing edge lines. I'm getting 50 degrees of deflection on high rates, both up and down! I set the elevators up also, with 50 degrees on high rates. For now, I've got the rates set at 10, 25 and 50 degrees, with increasing expo at each step... we'll see how that works out.

< Message edited by reyn3545 -- 1/1/2008 4:24:20 PM >

(in reply to reyn3545)
       Post #: 107

RE: Introducing the NEW Aeroworks Pitts Python ARF ... - 1/1/2008 3:43:46 PM   
F1 Rocket


 

Posts: 31
Joined: 11/23/2006
From: Melbourne, FL, USA
Status: offline
quote:

ORIGINAL: reyn3545 the plane weights just over 19 pounds .



Wow, that's a bit heavy. I thought these were coming in at around 17-17.5 with a DA-50. How much does your smoke system weigh?

Danny


(in reply to reyn3545)
       Post #: 108

RE: Introducing the NEW Aeroworks Pitts Python ARF ... - 1/1/2008 4:37:31 PM   
reyn3545



Posts: 953
Joined: 7/1/2006
From: Alpharetta, GA, USA
Status: offline 		I'm using a Sullivan pump (4 ounces) a Troy-Built 3-cell lipo battery (another 4 ounces) and I guess the tank, lines, etc.. might weigh another 4 (probably not that much). So, this explaines most of 1 pound.

I am running dual batteries and regulators to the receiver (another 5 ounces). I think with 7 digital servos (5985) and 2 analogs, I certainly don't want to find out the hard way that I needed a little more power through the receiver. Also, instead of a choke rod through the cowl, I'm running a servo on the choke, so there's a couple of ounces there.

All in all, I guess there's a pound I could shave off if easily, if I need to. I'll try another prop first. I think the smoke thing is a temporary "want".. I'll probably remove it once I get tired of cleaning it off! I set the plane up so that I can take the smoke pump and batteries out pretty quickly, and since the pump is up front and the battery is back, it should have limited effect on balance.

If props don't fix the problem, and I get tired of smoke, go to a manual choke, and its STILL too heavy, I guess I could start looking at titanium links, lighter wheels, tailwheel assembly, etc.. but I hate to start throwing dollars at fractions of ounces!

I think the 18 pound range is about as good as this plane is going to get. That's not really bad for a 50cc biplane, its not supposed to be a hovering machine.

Well, I got the fuel and smoke dots installed today, that's everything except the pull-pull turnbuckles for the rudder, the new wheels and wheelpants. Those should all be in by the time I get back home next weekend. I took it out in the backyard this afternoon to start it and check the smoke system. Thank God for tie-downs... yep, I forgot to check and reverse the throttle servo! Also, the Sullivan smoke pump was running backwards. No problem, I just swapped the tubes on the pump.

Everything seems fine, so now its just a waiting game until I'm at home for a weekend and the weather is nice.

< Message edited by reyn3545 -- 1/1/2008 11:21:35 PM >

(in reply to F1 Rocket)
       Post #: 109

RE: Introducing the NEW Aeroworks Pitts Python ARF ... - 1/2/2008 2:33:39 PM   
fmnspooch


 

Posts: 31
Joined: 6/6/2006
From: Howell, NJ, USA
Status: offline 		Did anybody else get these funky looking aluminum washers, about 20 of them... there about 1/4 inch thick X 1/2 inch round. WHAT ARE THEY FOR?????

_____________________________

Its better to ask for forgiveness, than permission.

(in reply to reyn3545)
       Post #: 110

RE: Introducing the NEW Aeroworks Pitts Python ARF ... - 1/2/2008 2:59:17 PM   
elderair



Posts: 304
Joined: 1/16/2002
From: Plattsburg, MO, USA
Status: online 		They are engine spacers as far as I know. I just used 12 of them to mount my LCD TV to the wall!!!!!! reyn3545, I can't believe Sullivan hasn't corrected their instructions yet. I had my pump burried on my Yak and had to tear a bunch of junk out and swap the lines. The instructions specifically show the inlet and outlet but they are backwards. Really agitating.

< Message edited by elderair -- 1/2/2008 3:09:10 PM >

_____________________________

The only time you can have too much fuel is when you are on fire!

(in reply to fmnspooch)
       Post #: 111

RE: Introducing the NEW Aeroworks Pitts Python ARF ... - 1/2/2008 3:42:33 PM   
reyn3545



Posts: 953
Joined: 7/1/2006
From: Alpharetta, GA, USA
Status: offline 		Yep, the funny washers are for engine mounts. and YES, I hate when Sullivan gets the wiring backwards in their pumps then leaves it up to us to fix it! Mine was pretty easy to get to, but I had to remove the spinner, prop and cowl. They do put a note in the instructions to say if it doesn't work, try swapping the lines... I guess that's all we get.

(in reply to elderair)
       Post #: 112

RE: Introducing the NEW Aeroworks Pitts Python ARF ... - 1/3/2008 2:31:42 PM   
fmnspooch


 

Posts: 31
Joined: 6/6/2006
From: Howell, NJ, USA
Status: offline 		Anybody plan on using a 2.4Gh for the RX? I am a little concerned that the fuse is sheeted, I wonder if it will diminish or interfere the signal at all? I have the 2.4 in all my other planes, but none of them are sheeted that far back on the fuse.

_____________________________

Its better to ask for forgiveness, than permission.

(in reply to reyn3545)
       Post #: 113

RE: Introducing the NEW Aeroworks Pitts Python ARF ... - 1/3/2008 3:18:07 PM   
elderair



Posts: 304
Joined: 1/16/2002
From: Plattsburg, MO, USA
Status: online 		I'll be using 2.4, having sold all other radio systems. I've seen em used in fiberglass fuses with out problems. Don't see it as an issue. You may have to play with the position of your satellite Rx and you could plug in one of the data recorders to see if you are losing signal at all.

_____________________________

The only time you can have too much fuel is when you are on fire!

(in reply to fmnspooch)
       Post #: 114

RE: Introducing the NEW Aeroworks Pitts Python ARF ... - 1/4/2008 12:43:36 AM   
shundley


 

Posts: 27
Joined: 9/15/2004
From: Lennon, MI, USA
Status: offline 		Got the same washers for my 75% yak use them for standoff mounts work great I will use just 1 on each bolt for my