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MARCH AND APRIL 2009                                                                              
                  
NEWSLETTER OF THE SKYLINERS

President: Byron Barker                                                                             
Vice President: Allen Burnham
Secretary: Jim Pirtle 
Treasurer: Jim Pirtle
Safety Officer: Eric Taylor
Newsletter Editor: Byron & Jane Barker

AMA Charter # 3465

      Meetings are held on the first Tuesday of the month, beginning at about 7:00 P.M.  Meetings are held at the Clark County Airport Flying Site during the summer and at Aircraft Specialists, Inc., on the Airport grounds when Daylight Savings Time is not in effect.

    The SKYLINERS Model Airplane Club is a club devoted to building and flying of model aircraft.  The only requirements for membership being interest in model aviation, and payment of dues to the Treasurer.  Visitors are always welcome, however, if you intend to fly with us on a regular basis, you must become a member of the club.  AMA membership is required to fly

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HAPPY BIRTHDAY TO ALL -IN- MARCH and APRIL
SKYLINERS



Net News 


Hanger 9/PT19 




From SSW/Steve Pierce

 

HANGER 9 / PT-19

 
Let me add some detail to what is included above. Planes like this (with all the ad space they are getting and general buzz among RC flyers) could be a game changing catalyst for more past C/L flyers returning to the fold. H-9's choice of a PT-19 may have been brilliant. How many RC flyers today had the little Cox wonders when they were kids. For fun, I've attached pictures of the two together.

My H-9 PT-19 arrived at my local hobby shop on Friday. It would have been built and flown on Saturday if the central AR weather had cooperated. Yesterday was rain and today I woke up to 23 degree temps.

The PT-19 is very much targeted at the R/C flyer. They are used to opening a Hangar 9 box and seeing a great looking, high quality and truly almost ready to fly ARF. In this case, the tank already has the tubing and clunk installed. This model is a 4 hour build (and that INCLUDES time for the 30 min epoxy to cure on the one-piece wing install).

Other aspects of the kit that target the R/C pilot who is giving C/L another try:
* Fit, finish and overall quality is exactly what modelers have come to expect from Hanger 9. The covering was so well applied that not one place on plane was covering wrinkled or in need of heat. Edges were sealed down too.
* EVERYTHING needed is in the box. Even though most R/C modelers will have most of the stuff stored someplace, they need not take the time nor worry about wheels, collars, fittings, connectors or anything. Just like an RC ARF, it's all in there.
* 2.5 oz tank and directions that explain that this tank is small on purpose- so the new/returning pilot won't get overly dizzy (max of 3.5 min flights).
* Directions only discuss muffler pressure plumbing for ease of set-up. There's no mention of standard or uniflow methods to confuse the newbie or delay the build.
* Control handle and 0.15" X 60' lines, as well as all connectors, are included.
* CA hinges are supplied (but no mention of why these don't belong on a C/L ship).
* Trick control rod that uses set screws to quickly and easily get the rod length spot on. No soldering or collars to mess with.
* No flaps- to keep things simple.
* The plane does have adjustable wingtip leadouts. But the directions simply tell the modeler to lock them in a certain place. No mention is made of what the adjustment is for. Weight box also has minimal attention to how to adjust.
* It is offered with or without an EVO .36 C/L engine.
* The modeler is not overwhelmed with pages of possible maneuvers, plumbing options or exotic fuel combinations. Instead, the only flying directions are to fly smoothly, control by moving the ??? WRIST ??? and to go out and have fun, "... relearn the skills you used to have".
* R/C type 5-15% nitro with 18% oil (no mention of castor vs synth) is the only fuel type mentioned. R/C flyers will have that.
* The R/C flyer will already have everything else needed.

Thus, an R/C flyer whose C/L experience is decades in the past, or with none at all, can open the box, build a well planned and documented ARF, set-up the tank/engine as they are already used to doing (all in one evening) and go fly the next morning. I hope H-9's marketing focus groups got this one right. Everyone knows the old tale about the high tide floating all boats. C/L purists will read the above and cringe. R/C flyers may open the box and re-join the ranks of the C/L flyers because H-9 has made it so easy. They can learn all about flaps, uniflow, tank adjustments, 4-2-4, high castor fuels and adjustable leadouts if they survive the build and their first few flights.

Changes I plan to make in the build-
* The H9 lettering on the fuse is pretty rough. I'll probably cover with a big flag.
* Sullivan, round 4oz tank with uniflow plumbing
* Must swap out control handle. I'm 6'5" with a hand to match. By the time I grind out enough clearance in the supplied unit...
* Pitch the CA hinges and use pinned hinges instead.
* Thunder Tiger GP .42 with tong muffler and pinned RC carb
* Need to look really hard at landing gear. Some of H 9 models, of late, have had weak gear mounts causing retracts at the wrong time. PT-19 is wing mounted on hardwood rails, and look stronger than H 9 Stick/Twist/Tango/Funtana fuse mounts.

To most of us, our C/L expectation as kids was quite simple. We had a great day if we could get the old Fox/McCoy hand started, run through a couple fuel tanks, fly a few laps inverted, maneuver through a few loops, maybe get through a few lazy 8's, and do so without re-kitting the airframe. This plane should do all that with ease. If we had a Cox PT-19... that's another story.

There are few other things worth mentioning about the model.

* With it's wingspan of 54" and a wing area of 519 sq in, it is quite a bit larger than a Ringmaster or Flight Streak. At the same time, it is quite short coupled, like they are. The length is only 28.25 ". By contrast, my Pathfinder has a 55in wingspan, but is 43" long. A .40 size Cardinal is just over 40" long. The PT-19 also has a few degrees of dihedral???? It does have a fully (or almost fully) symmetrical wing. It should be able to perform both inside and outside maneuvers, but will add extra pilot load to keep them uniform. BUT- the "Precision" aerobatic C/L pilot is not the target market.

* The model seems a bit expensive. Street price without engine is right at $120. The model with engine is just under $200. Compared to the price of Brodak or Top Flight ARF's this seems high. Here is where the modeler pays the price for having everything all wrapped up in one big box. This price also includes ALL hardware plus the handle and lines. As yet, there is no PT-19 extra light for those of us who already have control handles, lines, wheels, tanks and so on.

* The kit says it's weight comes in between 38 to 44 oz. That would seem about right, as my Pathfinder comes in (ready for fuel) at 47oz. The fuse is a built-up unit. For lightening, it has cut out bays behind the wing. Check the photo looking straight down the fuse. IT IS ACTUALLY STRAIGHT WITH NO TWISTS ! The Tutor II ARF and Pathfinder ARF fuses I received were not even close.

* A close inspection of the wing construction shows that future addition of flaps may not be that difficult. It looks as if the flaps are there, they are simply sanded flat (no bevel) and glued to the trailing edge of wing.

The experienced builder and flyer in me would like to see a 2nd manual included to help the new/returning flyer develop. Or, reference to a Hangar 9 web site with all that info and links to PAPMA and others would suffice. A lower priced ARF without the hardware or control lines would attract more experienced C/L flyers to the model. But, when I think of the target market, the above comments become null.

Once I get some line time, I'll know better how it actually flies. I suspect it will become a trainer plane for friends who I want to expose to this aspect of model aviation.

Shoot me a note or respond to this post if you have any comments or questions.

POST NOTE ON EVO .36
I did not acquire the version with the EVO .36. I'll leave my decision with the simple statement that EVO's and I have too much history. But, it does look like a lot of effort went into this engine. It comes with three different sized venturies. It also comes with BOTH a traditional muffler and a tong muffler. I couldn't find any directions for the use on the various venturies and multiple mufflers. But they could have been hidden inside something else. Like so many other things about the plane, the modeler will have to learn this elsewhere. But for the beginner- mount what they gave you and go fly!

I've had some time to work with my PT-19 since I posted the "Open Box" introductory pictures. I too, agree that H9 hit the mark on this plane. But, that mark may not be what some dedicated C/L flyers want to see. No doubt any more- this plane is targeted at the RC pilot who has flown C/L before, but it's been a very long time. That's probably most RC flyers above the age of 45. A pure C/L newbie, even if a seasoned RC pilot, would have a low chance for success trying to learn to fly this plane without any assistance other than the assembly manual.


more next month