Posts: 12
Joined: 2/27/2005 From: Lincoln, UNITED KINGDOM Status: offline
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 Lipobatteries for radio and ignition Smartfly regulator
Posts: 139
Joined: 1/8/2005 From: Newnan,
GA, USA Status: offline
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.
Posts: 411
Joined: 6/6/2003 From: Denton,
TX, USA Status: offline
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.
Posts: 54
Joined: 10/7/2004 From: Copley, OH, USA Status: offline
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.
Posts: 411
Joined: 6/6/2003 From: Denton,
TX, USA Status: offline
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.
Posts: 54
Joined: 10/7/2004 From: Copley, OH, USA Status: offline
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.