Cox PT-19's blog View Details
Posted by Cox PT-19 | Jun 22, 2020 @ 08:26 AM | 7,819 Views
After letting multiple calm days pass by with not a single R/C plane circling the hill, today, the Q-Tee got a work-out.

Cox/Sanwa "Q-Tee" and It's Engines (6 min 32 sec)

Posted by Cox PT-19 | May 21, 2020 @ 09:02 PM | 7,445 Views
Still got some work to do to convince it to fly upside-down!

Kingpin's First Flights (2 min 1 sec)

Posted by Cox PT-19 | May 03, 2020 @ 04:14 PM | 5,838 Views
Had some fun out in the pasture before the thunderstorms rolled through.

The Q-Tee is flying well, and having no trouble packing along it's little cameras.

Cox Sanwa "Q-Tee" gets some Flights after Restoration (5 min 21 sec)
...Continue Reading
Posted by Cox PT-19 | Apr 08, 2020 @ 08:35 AM | 6,140 Views
Got all these projects various degrees of storage ranging from "Cold", to "Warm", to "Hot" status.

So naturally, the smart and prudent thing to do is---start ANOTHER project!

Back to the past yet Scientific Model Airplane Company's "Zipper" building notes from the Cox Engine Forum:

So, Bob's one little, though enthusiastic, comment about his fondness for Walt Musciano's 1/2A "Zipper" was just enough to push me over the edge into starting one. Went to bed thinking about it...drank coffee this morning thinking about it, so what the heck...

I built the original Scientific kit back in 1969 or so, powering it with the Babe Bee from my PT-19 QZ. A couple decades ago, I got a copy of the plan sheet, along with a nice note from the Man himself, Mr. Musciano. Been talking about building it since then.

Now, in the midst of a shop totally cluttered with tapes, dope cans, and spray equipment, I've started cutting templates from the 10% enlarged copies I made from the original plan sheet. I wanted this Zipper to be a bit larger, as I remembered the original to be better suited for a healthy .020, instead of the Babe Bee that took it around the circle like a combat wing.

Anyway, we'll see how this goes along. So far, the whole "Social Distancing" thing has turned the shop and front yard into a booming model airplane flying, dope spraying, resurrection of stalled projects, and engine test-running affair.

Everybody take care and stay healthy,
Dopey Hermit Kim
Posted by Cox PT-19 | Apr 07, 2020 @ 08:43 PM | 6,775 Views
And the Madness Continues...

The 1960's Scientific Model Company's "Thunderbird" gets more paint...and check out that purple thumbnail!...Continue Reading
Posted by Cox PT-19 | Apr 05, 2020 @ 06:59 PM | 6,258 Views
Flying 1/2A Control Liner models in the front yard on a beautiful Spring Day.

The planes are two designs from Walt Musciano; a "Big Otto" and "Golden Hawk", that were kitted by Scientific Models through the 1950's and 60's. Big Otto is powered by a Cox "Black Widow" .049, and the Golden Hawk's engine is a 1950's Cox "Space Bug" .049.

The third is a "Beginner's Ringmaster", and is powered by a Cox "Golden Bee".049.

The little Ringmaster is built from free plans that are available in the files section of the Annual Worldwide Ringmaster Fly-A-Thon FB Page

Front Yard Flying Big Otto, Golden Hawk, and a Beginner's Ringmaster (7 min 54 sec)

Posted by Cox PT-19 | Mar 30, 2020 @ 09:49 PM | 5,420 Views
Got some front yard flying time with my Hyper Viper today, though it took some prep for each flight. The plane's plastic engine mounts are deteriorating and came loose on both flights, so I'm gonna have to do some serious thinking on the best way to keep it's engine from "departing the area".

Still, got in a couple flights in some fairly smooth air (which has been a rarity lately!).

Front Yard Flying...2003-'06 Cox "Hyper Viper" (3 min 46 sec)
...Continue Reading
Posted by Cox PT-19 | Mar 28, 2020 @ 11:18 PM | 6,750 Views
The front yard was right on the verge of becoming somewhat solid...before this latest "Gully Washer" rolled through and returned it to a near-marsh condition, so no circle-turning gonna happen out there.

Didn't feel like working on any projects, and couldn't spray paint in the liquid air, so decided it was time to turn some fuel to noise, and jam it all together on Movie Maker.

I promise that SOMETHING will actually fly at some point, and I'll video it!

Model Airplane Engine Runs (4 min 38 sec)

Posted by Cox PT-19 | Mar 24, 2020 @ 12:37 PM | 10,774 Views
Photo 1.---drawing the fuel out of my beautiful Goldberg "Shoestring" back in 1978, after cartwheeling the model across the grass.

What would really be thought of as a friendly sport model nowadays, the 1960's racer was a hand-full for me after learning to fly on Kevin's good-natured Kadet, and building a little time on my own Navigator. A painful lesson in that, just because a tali-dragger is on the ground, DOES NOT mean that it's finished flying.

The photo was also a lesson in the need to "pin" control surface hinges, as it's right aileron has pulled loose. If this happened gradually over time, it'd eventually result in a violent "re-kitting" of the plane.

But, she flew again, and had a pretty long life as my dumb thumbs got educated....Continue Reading
Posted by Cox PT-19 | Mar 22, 2020 @ 01:18 AM | 5,278 Views
Sleepless and messing with my video program.
Nothing but old engines, making racket and slinging castor oil.

Playing with Engines Out in the Shop (2 min 34 sec)

Posted by Cox PT-19 | Mar 15, 2020 @ 08:48 PM | 12,713 Views
The Navigator and Skylark are now ready for their white base coats, but need some less blush-worthy weather before I point a paint gun at them.

The Q-Tee is ready but for a little cosmetic stuff, which I wasn't in the mood for, so the Swap Meet Rescue Veco "Brave" became my first test of the doctor's exam table paper Andrew sent me a while back (thanks again Andrew!).

The paper's fibers don't seem to be quite as strong as my original silkspan, but it held together enough for me to dip it in water and blot it on some paper towels before doping it to the Brave's wing. It looks pretty good, so now, so I'm gonna gamble a couple coats of Brodak clear to see how it works.

It's builder had covered it with silkspan that had gone brittle with age, and also had done some filling work on it's forward fuselage. I intend just to clear-coat the bare wood (with sanding between coats) 'till I get a shine, then go with some base orange, with black & white trim. That's the plan at the moment......Continue Reading
Posted by Cox PT-19 | Mar 10, 2020 @ 07:22 AM | 6,809 Views
Yes...yet ANOTHER model airplane engine test.
You've been forewarned, so no whining allowed!

The spoils of last week's "Engine Sniping", this little Anderson Royal Spitfire (MAN, I love that name!) arrived yesterday, and went straight from the mail box to it's waiting test stand.

Test Running My 1950's Anderson Royal Spitfire .065 (1 min 26 sec)

Posted by Cox PT-19 | Mar 09, 2020 @ 09:01 AM | 6,692 Views
Still brushing on coats of Brodak clear dope on the Navigator, along with adapting engines to the Q-Tee's changeable firewall. While I was at it, I cut out a firewall for two Cox Tee Dee .020's I'm gonna fly on the little parasol. I'd originally called this mod "Hammerhead", 'till flying bud Tony "xplaneguy" referred to it as a "Board of Engines"...and the name stuck!

Hopefully have it ready to fly this coming weekend.

Test Run of the Q-Tee's "Board of Engines" (1 min 44 sec)

Other "Board of Engines" Applications:

Great Planes 'Fling' Sailplane Flying with Cox Tee Dee .010 Engines (2 min 8 sec)
...Continue Reading
Posted by Cox PT-19 | Mar 07, 2020 @ 05:47 PM | 8,438 Views
So, brushing another clear coat on one project while trying to decide whether or not to drag out the paint gun and shoot some color at the other, I split the difference and went to work on a third project (this why I 'bout never get these suckers finished).

My late Cousin Bill built this Cox/Sanwa "Q-Tee" back in the 1980's, eventually giving it to my Uncle Wayne. When Wayne gave it to me several years ago, it was in fair shape, though the wing's silkspan was very brittle, and it had some "nose rot" from all the castor oil that had been slung on it.

I finally got around to re-covering the wing, and while rebuilding it's snout, I decided to beef-up the area behind the new firewall, and modify it to take detachable "plates" of ply, that had engines pre-mounted to them. This way, I could cut a stack of ply plates, coat them with epoxy, and put any of my orphans on them without drilling multiple holes in the Q-Tee's firewall to match their mounting patterns.

My shop now has the aroma of both Brodak clear dope, and Sig 5-Minute Epoxy wafting through it.

Smells like "Model Airplane" in there!
Posted by Cox PT-19 | Mar 06, 2020 @ 03:29 PM | 5,176 Views
Got the little Ohlsson and Rice .049 going this morning.

I had to use a hair dryer to heat-soak the venturi area to free the needle valve and the unseen reed valve. It's mixture setting/RPM wandered around for a while (probably as old chunks of goop were breaking loose inside), before finally settling into a fairly steady run.

It's no power house, turning a 5-3 gray at around 10-12K, but the old dog is still running strong enough to drag a 2-channel plane around the sky.

Ohlsson and Rice 'Mite' 049 Test Run (1 min 5 sec)

Posted by Cox PT-19 | Mar 02, 2020 @ 07:44 PM | 7,205 Views
So, the "Engine Sniper" moves stealthily through the tall grass of internet anonymity, eyeing his Ebay target in the manner of a mountain lion stalking a fawn, with his PayPal locked and loaded as the time ticks down.

Cold-blooded, he has little compassion for his fellow model airplane nerds that he KNOWS are lusting after the same treasure...for THEY are JUST as cold and unfeeling...and deserve no mercy.

In a low whisper that barely crosses the darkened room, the Engine Sniper's utterance is more breath than spoken word,
"Not today, my friends...not today..."

With a few moments to spare, he allows himself to recall his victory of the previous evening, when he snapped an Ohlssen & Rice .049 from the midst of a group of week-long competing bidders...
With a sum so massive, it was akin to aiming a cannon at a hamster, he'd waited 'till the last 5 seconds to unleash the Fury of "Auto Bid". He then punched the "B" button.

His fellow nerd bidders were scattered like so many hyenas forsaking fresh carrion to a pride of hungry lions.

The surge of electronic money swamped and exhausted all other efforts, and then shut itself down after claiming it's prize with only a few dollars above the previously highest bidder. Before the dust had settled, it's seller had received payment, and the Engine Sniper once again disappeared into the internet marsh.

Now, the target is a fairly nice Anderson Royal Spitfire 065. From the 1950'...Continue Reading
Posted by Cox PT-19 | Feb 28, 2020 @ 08:21 AM | 4,237 Views
Got in some more work on the Goldberg Jr. Skylark project that's slowly creeping along.

The note is written to be understandable by those who have never experienced this type of old school finishing (and maybe flash-back material for those who have!).
Doping out in the shop...butyrate that is...

So the Skylark gets a layer of light silkspan applied to it's fuselage..."painted on" with Brodak clear dope, along with a little shaping work on it's tail cone.

This is the most "crafts-like" stage, with a lot of tissue trimming and using clear dope to bond it with the balsa, then using sand paper to trim away the excess. Makes the whole shop smell like "Model Airplane"...which, when I was kid, used to get me evicted from the front room to the front porch. Mom just didn't appreciate my version of "Aroma Therapy".

It'll get sanded and clear-coated 'till it starts to get a shine, or until I start seeing purple dust bunnies in my closed-window, winter time shop....Continue Reading
Posted by Cox PT-19 | Feb 21, 2020 @ 03:47 PM | 4,190 Views
Back in the 1980's (or maybe 90''s all starting to meld), my flying bud Neal and I got a couple of the newly released Cox R/C PT-19's. Made of molded foam, these are good-looking planes, with moderate performance from it's .049 Ranger (coincidentally, also the name of the full scale PT's engine).

We DID experience problems with getting the CG correct...even moving all the gear as far forward as we could, the model was still a bit tail-heavy, and would snap inverted if it's pilot got too frisky with pitch input. A chunk of lead ballast fixed the problem, but gave the .049 still more weight to drag through the sky.

I finally decided to "make the ballast work", and bolted a Medallion RC .09 to it's snout, spaced forward by a block of ply, and fed by a metal wedge tank suspended behind the firewall. The .09 was the exhaust band type, and worked really well...helping with the balance problem, AND turning the PT into a mean little ankle biter.

Neal followed suit...though his may have been powered by an O.S. .10, and we put on many impromptu Sunday pylon races, or dog fights (it was often difficult to tell the difference), with both planes amazingly surviving our crazy flying.

I'd like to get my old relic going for this year's S.M.A.L.L., again with it's .09 engine. The foam has survived in great shape, but the harder plastic parts are turning into cookie crumbs and will take some shoring up to be airworthy.
Posted by Cox PT-19 | Feb 04, 2020 @ 03:03 PM | 8,066 Views
Got the heat turned up in the shop on this cold, damp day.

The subject of my attention, for the moment, is the faithful Jetco Shark that flew it's heart out last Saturday.

It got a little Monokote patching, and some cleaning/oiling of it's old Enya .19 engine.

As I mentioned earlier, this is the same engine that flew in my Uncle Wayne's Shark in the 1960's. The .19 was on the large side for the .15-sized kit, but we flew what we had back then. It later powered another Shark I built in 1975, which was literally worn out and busted up when it hit the ground at a friend's farm in the 1980's. The carcass of this one now graces the entrance of my shop.

So this is the Enya's third ride in the nose of the Jecto kit. Below are some photos of us flying Sharks back in the day. Great memories, and in particular, the day flying bud Kevin and I smacked a couple Sharks together over Olmsted's ball park.

We'd painted them in very similar schemes/colors...maybe TOO similar as we forgot who was flying what...with our two Sharks doing a model airplane version of JAWS.

Kevin's plane rose up into mine, getting holes punched through it's left wing by my Shark's landing gear. I pulled up, unhooking the two models, but with my prop walking down the chord of Kevin's wing, chopping up his flap, and then cutting off most of his left stabilizer and elevator for good measure.

I got off easy...with a couple punctures and a broken prop, my Shark glided to the ground. Kevin's Shark,...Continue Reading