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General control line discussion => Open Forum => Topic started by: larry richards on October 23, 2011, 10:10:02 PM

Title: PT-19 by Hemstrought
Post by: larry richards on October 23, 2011, 10:10:02 PM
I have a copy of Dave Hemstrought's PT-19 plans.  I would like to build the model and was wondering if anyone know's of a laser cut rib package for this model.  I believe the wing span is 55".  Really a nice Army aircraft.  Any help would be most appreciated.  Larry
Title: Re: PT-19 by Hemstrought
Post by: wwwarbird on October 23, 2011, 11:00:33 PM
 Larry,

 Check with Walter Umland, he offered a kit of it and may be able to supply a rib set.
Title: Re: PT-19 by Hemstrought
Post by: larry richards on October 23, 2011, 11:22:47 PM
Thanks for the info!  Called Walter and he can do the ribs for me.   #^
Title: Re: PT-19 by Hemstrought
Post by: Bill Little on December 02, 2011, 02:25:45 PM
Thanks for the info!  Called Walter and he can do the ribs for me.   #^

Hi Larry,

You will love the model.  I still miss seeing Dave fly his at local meets.  He's doing a lot of R/C with his son now, he told me.  His used K&B .40s set up by Stan Powell like the ones Stan built for Les Mc.  The last version I remember had been changed to an Aero Tiger .36.

Bill
Title: Re: PT-19 by Hemstrought
Post by: larry richards on December 02, 2011, 03:59:25 PM
Hi Larry,

You will love the model.  I still miss seeing Dave fly his at local meets.  He's doing a lot of R/C with his son now, he told me.  His used K&B .40s set up by Stan Powell like the ones Stan built for Les Mc.  The last version I remember had been changed to an Aero Tiger .36.

Bill
Title: Re: PT-19 by Hemstrought
Post by: larry richards on December 02, 2011, 04:03:34 PM
Model is coming along just fine.  Fuselage is framed and the engine mounts are in.  I'll be using a LA-46.  At this time I'm carving out the cowling.  I don't have a tank yet, and am trying to figure out the size (4 or more Oz.)
Title: Re: PT-19 by Hemstrought
Post by: kenneth cook on December 02, 2011, 05:05:57 PM
              My son Shawn has been flying his for 5 years now. This plane flies very well. We have a Brodak .40 for power. I have a 4 oz. tank in it and it will make the pattern in the hotter months. It barely makes it when the temps get cool. This plane presents well in the air. It certainly was a great plane to build and it has several awards behind it. I'd like to thank Paul Taylor for taking the picture a few years ago. Ken
Title: Re: PT-19 by Hemstrought
Post by: Brian Massey on December 02, 2011, 06:10:55 PM
Model is coming along just fine.  Fuselage is framed and the engine mounts are in.  I'll be using a LA-46.  At this time I'm carving out the cowling.  I don't have a tank yet, and am trying to figure out the size (4 or more Oz.)
I fly a 52 oz plane powered by an LA 46 and it takes close to 5 oz of fuel for the pattern.

Brian

Title: Re: PT-19 by Hemstrought
Post by: Phil Spillman on December 02, 2011, 07:48:07 PM
Hi Larry, Nice to hear that you'll be using the LA 46 my overall most favorite engine! I fly mine on 11 X % Pro Zinger or regular Zingers of the same dimension. These engines on a rare day will do a peattern on 4 oz. of fuel most really to be comfortable use at least a 4.5 oz tank. I prefer muffler pressure others don not! I know you will be most happy!

Phil Spillman
Title: Re: PT-19 by Hemstrought
Post by: Bill Little on December 04, 2011, 12:26:41 PM
Model is coming along just fine.  Fuselage is framed and the engine mounts are in.  I'll be using a LA-46.  At this time I'm carving out the cowling.  I don't have a tank yet, and am trying to figure out the size (4 or more Oz.)

HI Larry,

I would look at going down a little bit in size from the "stock" venturi.  Something like the OS .20-.25FP or .25LA.  Jim Lee makes slightly smaller venturis which will give the needed fuel mileage (as low as 3 1/2oz.) and not kill the power enough to notice in that size model.  Pat Johnston has led the charge in using the .20-.25 size venturi in models this size.

Bill
Title: Re: PT-19 by Hemstrought
Post by: Larry Fernandez on December 12, 2011, 02:35:35 PM
I have a copy of Dave Hemstrought's PT-19 plans.  I would like to build the model and was wondering if anyone know's of a laser cut rib package for this model.  I believe the wing span is 55".  Really a nice Army aircraft.  Any help would be most appreciated.  Larry

Here is one built from American modeler plans.
In keeping with the spirit of the classic event, it has a Johnson .32 Stunt, old Veco wheels and an old Top Flight prop.
The coolest thing about this design, is that with an open cockpit you can be pretty creative with the detailing.
This model took on a severe wing warp and I have given up hope for it to be a "World Beater" so I'm building a new one, only better.
Post pictures as you build.

Larry, Buttafucco Stunt Team
Title: Re: PT-19 by Hemstrought
Post by: David M Johnson on December 12, 2011, 03:29:44 PM
Interesting muffler for the Johnson .32. How well does it diffuse the noise?
David Johnson
Title: Re: PT-19 by Hemstrought
Post by: Larry Fernandez on December 12, 2011, 03:36:49 PM
Interesting muffler for the Johnson .32. How well does it diffuse the noise?
David Johnson

Not well.
It can be configured to take out a little more of the bark, but the old Johnson dosn't take kindly to mufflers.

Larry, Buttafucco Stunt Team
Title: Re: PT-19 by Hemstrought
Post by: David M Johnson on December 12, 2011, 04:01:51 PM
I had to ask as that was something that was running through my head last night as I was trying to get to sleep.  In the time of "You can't fly here without a muffler"  That is a solution.
David
Title: Re: PT-19 by Hemstrought
Post by: John Kelly on December 12, 2011, 06:14:53 PM
   Hey Larry... Enjoy the build and please post some pics of it. It's been one of my favorites for quite some time.
Title: Re: PT-19 by Hemstrought
Post by: billbyles on December 12, 2011, 08:58:07 PM
A PT-19 would be just the airplane to make Gordy look good!
Title: Re: PT-19 by Hemstrought
Post by: Larry Fernandez on December 13, 2011, 12:54:58 AM
A PT-19 would be just the airplane to make Gordy look good!

Gordy looks good with any airplane. He's always been one of my stunt heros.

Larry, Buttafucco Stunt Team