rcwarbirdbuilder

My Feedback: (104)

I have built two other Dynaflite PT-19 from kits and few of it's good flying cousin the Dynaflite DH-C Chipmunk,, refference photos are easy to find for the planes on sites like Airliners.com..
I kept the prints and the parts cutout blanks of the PT-19 from the last kit, which I well be working off ofto cut the new peices, The parts count on the ribs and formers on both are relatively low so it makes it easy,, I have a stack of 3/32" and 1/8" balsa sheets from Tower Hobbies I well be using to make the new parts.

spaceworm

One of my favorites!. I have a older Pilot PT-19 kit in stages of completion, and a Great Planes Giant Scale Chipmunk ARF, also being "built". Do you plan to make paper copies of the cutouts and a copy of the plan available to other interested scratch builders? I for one, amoung I think many, would be willing to pay for such.

Good luck with your build, please post picturrs during the build and as the finished (are they ever really finished?) plane. Thanks.

Sincerely,

Richard

hy flyr

My Feedback: (27)

One of my favorites also. I've built two PT-19's from dynaflite kits. The second one was scratch built since they discontinued the kit. I recently found a nib kit so I'll have another one soon. I really enjoyed building them and will watch this thread with interest. Have fun building!

TLH101

My Feedback: (90)

Do a search in RCU Classifieds, there was a guy selling copies of the plans and parts. He also included both the Dynaflite and Great Planes version of the build manual. I bought a set several months ago, and plan to build myself an electric version.
I will be following this thread.

rcwarbirdbuilder

My Feedback: (104)

If I went through the work of making copys of the parts outline and plans I would think in terms of about $75, maybe I could even make a short kit or something and include the ribs and formers all for about $150, that seems reasonable since the kits I track on E-bay sell for a low of $200+ shippingup to $350. The cowls with the original kits are not any good and would need to be bought anyway from Fiberglass Specialties, OK I am back to building and posting more pictures latter.

rcwarbirdbuilder

My Feedback: (104)

I should have known better than to think that I was the only one who enjoyed building these Dynaflite kits! and I did not take all the early construction pictures as I should have,, to make up for it, you guys who have built them before as well as the new- bees well like following the mods I well be doing on my new airplane, guaranteed!..

gene6029

I just finished building the Dynaflite Chipmunk. It was a really easy build. I test flew it for the first time two weeks ago & its a big trainer! I put a DL-50 in it & made every attempt to make it as scale looking as i could. I wish i could find a Dynaflie PT-19 kit, since it would be my next build. For me, it is my first airplane that i built that i can attend the warbird events with, & i didnt have to break the bank w retracts doing it. If the PT-19 flies anything like their Chippy, its a winner......Gene

rcwarbirdbuilder

My Feedback: (104)

Gene,I would say that the PT-19 flys even milder than the Chipmunk.. I like flying the Chipmunk but missed getting rid of the PT-19 so I am going to keep both for now this time and do some relaxed flying,, I am going to set this one up with a two peice wing and removable tail feathers,, George.

rcwarbirdbuilder

My Feedback: (104)

OK it was all pretty simple,, 1 - I layed the main bottom spar than glued the ribs on it,,2 - added the top spar, 3 - sheeted the center two bays and the flap area ( add-on not shown on Dynaflite prints, it well have split flaps that should be cool landing it ) and sheeted over the t.e ailon area.

gene6029

Good start.......Gene[8D]

rcwarbirdbuilder

My Feedback: (104)

To make a two peice wing, a straightaluminum wing tube is not practical on a plane with wing diahedral, so the brace at the bottom of photois a removable wood brace 28" long and 3/4" thick. Meister uses this set up on his plans. I do not like large one peice wings so I make all my wings two peice like this...
The wood brace well fit into a pocket in the wing spars, the spars need to be wide as the brace for the pocket so it can slide in. The spar narrows to 3/8" beyond the brace area. You can see the lower wing is the bottom veiw and the flap area is set up open for a split flap. Servo rails are set up for flap and airlon. I well post some construction close up of above details next..

TLH101

My Feedback: (90)

I want to build mine with a 2 piece wing and flaps as well. I am hoping to be able to calculate the correct position of the holes in the ribs for a tube, to get the correct dihedral. I am also planning to sheet the whole wing. Oh yeah, mine will be electric.
I was recently given a D/F PT-19 built by someone else, with a G-26, that I converted to electric. Had a enough power to fly, but the wing was so warped that I was unable to salvage much of the model after the crash.

rcwarbirdbuilder

My Feedback: (104)

Terry, It is near impossible to use a wing tube if the wing has diahedral, what happens is that you can't get the lenght on the tube before it sticks out from the bottom because the wing is on on upward slant. Meister got around this by using a diahedral brace which matches the wing diahedral on the bottom so the brace can extend far enough into the wing to add support, I well post some pictures of this on my wing construction,, this is my Meister 109 with a 100" wing span, about 35 pounds flying fine and secure with the wood diahedral brace in the wing, George.

rcwarbirdbuilder

My Feedback: (104)

In this picture you can see the 3/4" wide ply strip going on a slant between the ribs before adding the shear webs, the tapper matches the wing brace, which well slide in. than the other side of the wing slides in the opposite side.

smkrcflyer

I'm very interested in how your doing the two peice wing. I would like to build a top flite GS P-47 but the wing is to long. I also have all the parts I need to build the Dynaflite PT-19.

TLH101

My Feedback: (90)

A wood joiner will not work in my part of the country. The humidity is so bad, and changes radically during the day, causing the box and joiner to swell and retract. If it's built to a nice tight fit, it goes together in the morning, but may not come apart later in the day, or vice versa. Been there done that. May try 2 smaller diameter tubes, one front and back.
BTW, there is a D/F PT-19 instrument panel listed in the RCU classifieds right now, if you need one.

rcwarbirdbuilder

My Feedback: (104)

I can see where it is real humid you can have a problem, I have not encountered that problem with the wood brace slipping in or out, I found it helpful to rub a bar of dry bath soap on the brace which acts as a lubricant on the wood parts.

rcwarbirdbuilder

My Feedback: (104)

My last giant Top Flite P-47 was set up with the two peice wing as well as my two 102" span Meister P-47, at about 48 pounds powered with a Quadra 100, flys great

spaceworm

Back in the day we used talcum powder on our bamboo slide rules to keep them smooth and sliding nicely. The baby powder we had to use sometimes also seemed to attract the girl co-eds maternal instincts, although we were two nerdy to see that as a come-on.

I use talcum powder on my Sig J3 plywood wing joiners with good effect. However, I do not see any female stalkers lurking nearby.[]



Regards,

Richard

gene6029

Slide rules!!!!, you must be as old as me....Gene

rcwarbirdbuilder

My Feedback: (104)

Well, here is what the fuselage looks like, the first picture is the basic fuselage... I well be posting some finish details as the fabric covering goes on the wings and fuselage.. I used a ply sadle base and placed the wing in to hold the ply base in shape as the epoxy cured. I am using tri stock on the ply base for the fillet and sanding it to shape. ( Dynaflite does not show the fillets on the plans). but sure makes for a more realistic looking airplane at the feild.

spaceworm

Likely older![]

Most young puppies do not even know what a slide rule is and how to use it. Or how to actually "do" real math. I just hope their batteries do not run out before the end of the world, or if they do, actually cause it!

Regards, Richard

"Old age and treachery can overcome youth and skill anyday of the week"

ARUP

Funny! I must be a couple of years younger for my slide rule didn't need talcum powder- it was made of plastic! Then the TI-55 came out and all the nerds wore them on their belts! I was an anti-nerd, long haired, (almost) brainiac for I bought a Unisonic calculator. The Unisonic was counter culture to the TI-55. History proved me the 'smarter' of the bunch because all modern calculators operate similarly.

Sorry for the hijack- the PT-19 will be a neat airplane. I have a Pilot kit of it but it is a smaller scale version. Could easily enlarge plan and patterns, though!

spaceworm

Later in the "Day", Pickett came out with their green anodized aluminum slide rule. It was noisy, cold and unfeeling, and did not smell as good as the seasoned bamboo 'rules. I had both the Dietzgen and the K&E bamboo "rules and even a 6 inch one and, later, a plastic circular one.

Electronic calculators were not available to the student back in the day, and even the engineering labs used Monroe mechanical calculators.

Back to the topic. also have a Pilot PT-19, were there more than one version by Pilot? Mine is built but I need a wing half to complete. I have the plans so i can cut a set of ribs and build the wing, unless someone has a spare one to sell?

Regards,

Richard

gene6029

Man that PT-19 is moveing along!! Im getting the bug just following along with your build. 10-4 on the wing fillets, the do make a difference. I included them on my Dynaflite Chipmunk. Here is a pic of my Chippy with the fillets......Gene