Author Topic: Possible new OTS offering from John Brodak (Read 4701 times)

Robert Zambelli · « **on:** September 11, 2014, 08:38:58 AM »

Thanks to some great photos and information from Dennis Adamison, I have started construction on plane that should prove most interesting.
It's a twin, powered by two vintage Fox 19s and of course, OTS legal.

Anyone interested?

As soon as possible, I will post some pictures of the prototype.
If it goes well, John may offer it as a kit. If not, I'm sure the plans will become available.

Bob Z.

john e. holliday · « **Reply #1 on:** September 11, 2014, 09:35:23 AM »

Oh if I didn't have so many kits, plans and plane already.

Sean McEntee · « **Reply #2 on:** September 11, 2014, 10:01:45 AM »

Those nacelles sure are short. What are you planning on for power?

Robert Zambelli · « **Reply #3 on:** September 11, 2014, 10:23:24 AM »

Actually, they're not as short as they appear in the photo.

Two vintage Fox 19s.

Bob Z.

Avaiojet · « **Reply #4 on:** September 11, 2014, 12:50:46 PM »

Robert, I think it has a nice look!

I have two 25's.

What will the span be?

Bill Morell · « **Reply #5 on:** September 11, 2014, 12:59:35 PM »

I would be interested.

Jim Thomerson · « **Reply #6 on:** September 11, 2014, 04:05:08 PM »

I am very pleased to see this. I posted a photo of this or a very similar airplane a while back. Glad you are picking up the ball, so to speak.

Robert Zambelli · « **Reply #7 on:** September 13, 2014, 06:18:40 AM »

Hi, Gents.
Here is some preliminary info on the twin.
Wingspan: 54 1/2"
Wing chord: 10 1/8
Tailspan: 18"
Tail chord: 6"
Wing T/E to Stabilizer L/E: 10 1/2"
Fuselage OAL: 37:
Estimated weight, RTF: 45 ounces

I should have some pictures up by Monday

Bob Z.

Sean McEntee · « **Reply #8 on:** September 13, 2014, 08:00:35 AM »

Quote from: Avaiojet on September 11, 2014, 12:50:46 PM

Robert, I think it has a nice look!

I have two 25's.

What will the span be?

LA 25s I'm guessing? They have ALLOT of power. I flew my Primary Force with one for several years. Couple of LA 15s would probably be ideal.

Count me in too

Paul Smith · « **Reply #9 on:** September 13, 2014, 08:16:59 AM »

What's the name of the plane?

Who designed it?

John Stiles · « **Reply #10 on:** September 13, 2014, 10:45:57 AM »

Dayadgummit...I almost wet my leg.

I want one!!!

Robert Zambelli · « **Reply #11 on:** September 14, 2014, 08:32:51 PM »

Here is a photo of the basic framework. This work was accomplished in five days, partime.
The wing is viewed from the underside.
The total weight as shown is 15.2 ounces but note that nothing has been hollowed out - the tips are solid as well as the fuselge blocks.
I estimate that I can remove at least three more ounces.

ENJOY!!!

Comments, PLEASE.

Bob Z.

Robert Zambelli · « **Reply #12 on:** September 14, 2014, 10:00:22 PM »

Inboard nacelle.

Bob Z.

Mike Keville · « **Reply #13 on:** September 14, 2014, 10:06:42 PM »

Quote from: Paul Smith on September 13, 2014, 08:16:59 AM

What's the name of the plane?

Who designed it?

===========================
Can't recall the name, but would bet the designer was Hank Bourgeois.

John Stiles · « **Reply #14 on:** September 15, 2014, 05:20:25 AM »

After all these years, I finally realize I've got it bad! So bad, I was sorting through my balsa box last night before I went to bed!

Avaiojet · « **Reply #15 on:** September 15, 2014, 05:24:21 AM »

Robert,

With all due respect.

How can a model that is "made up" from photos, and not built directly from original plans, be OTS legal?

There would be no way to prevent differences in many areas?

All these differences add up.

From my perspective, they add up to a model that isn't the original one.

Not trying to nit pick, but some conversation about this would be appreciated.

You could take any pile of photos of any model where no plans were available and produce a "likeness" then call it OTS legal?

??

John Stiles · « **Reply #16 on:** September 15, 2014, 05:32:10 AM »

I bet he's working from a blueprint...I don't know how he could accomplish that much so quickly, without he has a plan or laser cut parts.

Avaiojet · « **Reply #17 on:** September 15, 2014, 05:44:27 AM »

Quote from: John Stiles on September 15, 2014, 05:32:10 AM

I bet he's working from a blueprint...I don't know how he could accomplish that much so quickly, without he has a plan or laser cut parts.

John,

Probably used an existing wing from some other model? Like I do sometimes!

It's a nice sleek looking model.

Paul Smith · « **Reply #18 on:** September 15, 2014, 06:11:28 AM »

Maybe it's a European or Asian design. To be OTS (or classic of N30) legal there needs to be timely documentation of publication or kitting.

On the up side, it does have engines.

Jim Thomerson · « **Reply #19 on:** September 15, 2014, 06:50:42 AM »

There was some discussion of this airplane several years ago. Photos appeared in a couple of pre 1952 publications. I think, at the time, it was said that someone had plans.

http://stunthanger.com/smf/index.php/topic,21931.0.html

peabody · « **Reply #20 on:** September 15, 2014, 07:37:39 AM »

Hi Bob...Is that the plane that Randy Holcroft built a couple decades ago?
Very cool.

John Stiles · « **Reply #21 on:** September 15, 2014, 10:59:12 AM »

Quote from: Avaiojet on September 15, 2014, 05:44:27 AM

John,

Probably used an existing wing from some other model? Like I do sometimes!

It's a nice sleek looking model.

That certainly would be his prerogative, but the picture is of the bottom of the wing, nacelles are flat on the bottom, wing might be sorta too. In the picture, the air foil looks really petite, yet; it's hard to tell because the graininess of the photos. But that right there tells you its OLD. Robert's wing looks short and stubby with a rather plump air foil....but I think I'll reserve judgement till its all finished and sitting upright. It's still going to look different because of the modern photography compared to those old box cameras. TJMHO

Robert Zambelli · « **Reply #22 on:** September 15, 2014, 03:19:48 PM »

Here are some photos of the Twin Joker.

Bob Z.

Dan McEntee · « **Reply #23 on:** September 15, 2014, 04:04:28 PM »

Quote from: Robert Zambelli on September 15, 2014, 03:19:48 PM

Here are some photos of the Twin Joker.

Bob Z.

Well I'm kinda confused. The original photo looked all out of proportion to me for a 54" model with two Fox .19s. The one looks atthe middle photo in the last group that quotes it havingtwo Torp .29s. From the cylinder shap and size, I would buy that. Then one looks at the photo of the original builder holding the model, and it looks like it would be over powered with two Norvel .061s! Is the model under construction an enlarged version? The photo with him holding the model raises my questions. One way or the other, it will be a fast model and no threat to a Humongous or Jaimeson.
Type at you later,
Dan McEntee

John Stiles · « **Reply #24 on:** September 15, 2014, 06:26:07 PM »

The one on the kitchen table is outstanding...that's the one I'm interested in!

P/S, did I mention I was born in '49' LOL!

john e. holliday · « **Reply #25 on:** September 16, 2014, 10:19:05 AM »

Talking to guys from that era, the planes did fly fast.

PerttiMe · « **Reply #26 on:** September 16, 2014, 12:14:41 PM »

A twin? Only if it isn't hard to convert to electric

john e. holliday · « **Reply #27 on:** September 17, 2014, 08:53:37 AM »

Bobby Hunt makes twin electric look easy. Go look in the electric section.

Robert Zambelli · « **Reply #28 on:** September 28, 2014, 04:38:16 PM »

Here's the Joker Twin as of today.
Weight is 13.4 ounces.

Bob Z.

Douglas Ames · « **Reply #29 on:** September 28, 2014, 04:58:35 PM »

Quote from: Robert Zambelli on September 15, 2014, 03:19:48 PM

Here are some photos of the Twin Joker.

Bob Z.

Hand lettering is a lost art!

John Stiles · « **Reply #30 on:** September 28, 2014, 05:31:06 PM »

Geeeeze that's really looking cool, Robert! Whats up with the black ribs? I hope they don't ask you to put a stopper on that pointed nose!

Motorman · « **Reply #31 on:** September 28, 2014, 06:46:22 PM »

If the inboard engine quits for some reason will it stay out on the lines?

MM

john e. holliday · « **Reply #32 on:** September 28, 2014, 09:05:45 PM »

I like it already. And John I think that might be a carbon laminate. At least that is what it looks like to me.

RknRusty · « **Reply #33 on:** October 03, 2014, 08:59:04 PM »

That's looking really sharp, can't wait to see it fly.
Rusty