RE: Pitts Pythons in Customs now  
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All Forums >> RC Airplanes >> Giant Scale Aircraft - 3D & Aerobatic >> Aerotech R/C Models Support >> RE: Pitts Pythons in Customs now
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RE: Pitts Pythons in Customs now - 3/17/2007 12:26:11 AM   
Bosshossv8


 

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From: Schiller park, IL, USA
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I am also missing the elevator rods ..............were they in the same package??

Are they anything more than just plain jane 440 rod or are they special turnbuckles??

Any length info would be apreciated....I will just make my own.

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       Post #: 151

RE: Pitts Pythons in Customs now - 3/17/2007 12:36:15 AM   
Aerotech


 

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Hello,

The kit does not come with any push rods. So your not missing anything. We use H9 push rods and I use a Dubro Pull/Pull on the rudder.

Thanks

John

< Message edited by Aerotech -- 3/17/2007 12:38:40 AM >

(in reply to Bosshossv8)
       Post #: 152

RE: Pitts Pythons in Customs now - 3/17/2007 12:40:28 AM   
Bosshossv8


 

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Whew, I thought I might have thrown them out with the box. Thanks.

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       Post #: 153

RE: Pitts Pythons in Customs now - 3/17/2007 2:00:16 AM   
bonedaddy41



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Joined: 6/6/2003
From: Denton, TX, USA
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I used Hanger 9 Titanuim Pro-links. 4-40x2 1/2" on the ailerons, 4-40x5 1/2" on the elevators and heavy duty 4-40 pull/pull on rudder.

My wings and tail feathers are finished. Maybe I can can get the Evolution 58 mounted this weekend

Now I have to get my wing bag that I loaned out

< Message edited by bonedaddy41 -- 3/17/2007 2:03:50 AM >


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       Post #: 154

RE: Pitts Pythons in Customs now - 3/17/2007 2:22:12 PM   
Unleaded Gaz


 

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From: Lincoln, UNITED KINGDOM
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Recieved my Python yesterday - I think I am the first customer in the UK I bought the plane from Probuild who very kindly adapted the underside of the fusalage to accept a semi-recessed canister exhaust; noise is a real problem in the UK/Europe, mufflers are just not effective enough and any manufacturers looking to sell in Europe should build pipe tunnels in to their designs.

I look forward to seeing some build threads on the kit - I have downloaded instructions from the Aerotech site but can't see mention of down/right trust and flying wires etc.

My equipment list so far is straight out of my Chip Hyde Vision my only concern is whether the DA50 is powerful enough for 3d:

DA 50
Chip Hyde Canister
8511s on all flying surfaces
Lipo batteries for radio and ignition
Smartfly regulator

(in reply to Taildragger726)
       Post #: 155

RE: Pitts Pythons in Customs now - 3/17/2007 2:23:12 PM   
alpapilot


 

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Joined: 1/8/2005
From: Newnan, GA, USA
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I made my own pushrods from 4-40 threaded rod with carbon fiber tube epoxied over it. Not much heavier and many times cheaper. Two bucks for the rod and five for the CF tube verses seven or eight bucks a pair for the H9 stuff.

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       Post #: 156

RE: Pitts Pythons in Customs now - 3/17/2007 4:03:43 PM   
bonedaddy41



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From: Denton, TX, USA
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Yep. I never said they were cheap But the pro-links do have one benneift over all other control rod setups. They have righthand threads on one end and lefthand on the other. This allows for precise adjustments where all other rod setups only allow for 180 degree turns on each end for adjustment. That may not really be a big deal to most .... and .... I was being lazy and didn't want to make my own

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Don't knock on Death's door. Instead, ring the bell and run. He hates that.

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       Post #: 157

RE: Pitts Pythons in Customs now - 3/17/2007 6:23:35 PM   
V1 RO T8


 

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From: Copley, OH, USA
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We're getting along pretty good on the assembly. All four wing panels are done, Robart 307s are in, servos and linkages (CF tubes w/ titanium ends) installed. Vert stab glued in, working on the MLG and the pull-pull.

Here's a nice tip: Sealing of your control surfaces can be done with 100% silicone. First, thouroughly clean the monokote along both sides of the hinge gaps with denatured alcohol, then run a thin bead of silicone along the length, underside. Smooth out, and wipe away the excess by using some soft balsa stock, sanded to a gentle curve, for a "trowel".
Leave the control surface in the neutral position, and allow to dry overnight. Easier and much quicker than cutting and ironing on monokote gap sealers...

Has anybody gotten close enough to completion to get a feel for the CG?
I suspect this model builds "tail heavy" due to John's comments to "put the batteries all the way forward, and use the longer, 3" standoffs for the DA-50."

Just received my pilot figure from Aircraft International; the "D" size is just a bit too tall, but can easily be trimmed to fit. You need the "D" size so the head will be large enough for scale. See the picture of a full-scale 12...

Also received the PT Models 23X8 CF prop from TBM. You guys are right--much lighter than a Mejlik, and just as pretty

One more tip: Rather than wood dowels, we're going to use PVC inserts in the ends of the CF wing tubes. Cut off 3/4" of PVC pipe, then split it lengthwise with a 1/4" cut; it will then compress to fit inside the CF tube. You can then drill and tap for the wing retention screws. If the PVC threads ever strip, just pop a new piece in. Used this method on Chip Hyde's DV, and it worked fine.

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       Post #: 158

RE: Pitts Pythons in Customs now - 3/18/2007 2:23:17 AM   
V1 RO T8


 

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Nix the PVC inserts; it pulls the CF tubes out of round.
Will have to use wooden dowels after all.

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       Post #: 159

RE: Pitts Pythons in Customs now - 3/19/2007 6:12:23 AM   
bonedaddy41



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Thanks for the update. I bought dowel and PVC. I will stick with the dowel now.

I finished my cowl ring today. I think that is going to be a nice, clean setup. Thanks for the extra ply John. You had that planned all along, didn't you?

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Don't knock on Death's door. Instead, ring the bell and run. He hates that.

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       Post #: 160

RE: Pitts Pythons in Customs now - 3/19/2007 10:06:47 AM   
V1 RO T8


 

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Sorry for the false alarm on the PVC; when I had used it on my Double Vision, it was with aluminum tubes...CF tube's walls are so thin, and not stiff enough, radially.
Glad you made a cowl ring; I think you'll like it.

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       Post #: 161

RE: Pitts Pythons in Customs now - 3/20/2007 1:58:30 AM   
V1 RO T8


 

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With the lighting and the angle of this belly shot, it is hard to tell if the air exit area is sufficient for proper cooling.

John, is this still the way your Python is set up, and if so, is it sufficient for cooling the DA-50?

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       Post #: 162

RE: Pitts Pythons in Customs now - 3/20/2007 1:56:56 PM   
Aerotech


 

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Hello,

Yes its the same. So far we have hard no cooling issues.

Thanks

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       Post #: 163

RE: Pitts Pythons in Customs now - 3/20/2007 9:10:17 PM   
LowKey3D



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From: Orlando, FL, USA
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John

Whats the recommended measurement from firewall to spinner backplate.
I need to know to order my standoff for a Evolution 58..

Thanks

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       Post #: 164

RE: Pitts Pythons in Customs now - 3/20/2007 9:20:14 PM   
Aerotech


 

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Hello,

Roughly 7" will give you clearence from the cowl and the distance for the CG.

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       Post #: 165

RE: Pitts Pythons in Customs now - 3/21/2007 12:46:43 AM   
V1 RO T8


 

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John,

Thank you for the speedy reply.

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       Post #: 166

RE: Pitts Pythons in Customs now - 3/23/2007 2:03:20 AM