Author Topic: First advanced stunter (Read 5438 times)

Fred Quedenfeld jr · « **on:** December 28, 2015, 11:24:00 AM »

What would you recommend
would like to use an LA 46
not a profile but not a lot of balsa blocks to carve
the HOBO seems a bit small for a 46
thanks
Fred Q

Akihiro Danjo · « **Reply #1 on:** December 28, 2015, 11:52:51 AM »

How about DQ Master by Kaz from RSM?

Aki

proparc · « **Reply #2 on:** December 28, 2015, 12:17:22 PM »

Quote from: Akihiro Danjo on December 28, 2015, 11:52:51 AM

How about DQ Master by Kaz from RSM?

Aki

Great recommendation! I always wondered why I didn't hear that one more often.

Crist Rigotti · « **Reply #3 on:** December 28, 2015, 12:37:40 PM »

Legacy 40.

Tim Wescott · « **Reply #4 on:** December 28, 2015, 12:46:16 PM »

Hey Fred:

The LA 46 is incredibly versatile; you could probably fly a Hobo with it just fine. However, you could also take a set of Hobo plans, blow them up by 10 or 20%, and that would fly even better on an LA 46, too. (Hobo Grande?)

My recommendation kind of hinges on whether you're crashing any more.

If you're still crashing, then you want a wing with no LE sheeting, ala the Hobo. One with a rectangular planform (like the Hobo) will be easier to build. If you know how to scratch-build, see if you can get your hands on a set of Fancherized Twister plans and a set of Hobo plans, build the wing and tail feathers of a Fancherized Twister, and marry it to a slightly enlarged version of the Hobo fuselage -- or make a "3D" version of the Fancherized Twister fuselage and use that.

If you're NOT still crashing, then you want a wing with LE sheeting. The reason revolves around the fact that a wing with LE sheeting is stiffer -- this makes it fly better, but that same stiffness means that the wing and fuselage are damaged more in a crash. The wing construction is more involved, but the extra build time translates straight to better performance (assuming you build a straight wing). In that case, I'd suggest that you get something like a Legacy 40 kit from Brodak, and "Hoboize" the fuselage, either by extening the top of the fuselage sides by about 3/8" and putting a flat fuselage top on it, or by making a triangular turtle deck on it like the Hobo.

Or, just build a Legacy 40 straight from the kit -- really, most of the construction time is taken up with making a good, straight plane -- if you're spending more time carving blocks than making the parts square to each other, then you're either way better than most of us at making a square airframe, or you've got your priorities crooked.

Keep in mind that if you're competing, and if you're in an area that has a profile class, a profile will let you get twice as many flights in at a contest with the same plane. Nothing will advance you faster than lots of competition flights, and a profile doesn't hold you back that much until you get up into Advanced.

Avaiojet · « **Reply #5 on:** December 28, 2015, 12:51:05 PM »

Would a Nobler ARF fit into this category with upgrades? Or possibly some other ARF?

Brent Williams · « **Reply #6 on:** December 28, 2015, 12:56:17 PM »

The Pathfinder is a great choice.

Jim Svitko · « **Reply #7 on:** December 28, 2015, 02:09:00 PM »

You have many planes to choose from for that LA 46. Much depends on how fast you want to get in the air and your skill level of building and flying. One of the ARFs will work if you do not want to spend too much time building but be wary of the controls supplied with some ARF kits.

If you want to build a little I can recommend the Time Machine. The foam wing builds fast and straight and the rest of the plane goes together quickly as well. Both the Time Machine 40 or 50 can be powered with the LA 46.
As Tim said, it is a versatile engine. It was also inexpensive, reliable, fuel efficient, and user friendly out of the box. It was so good that it was only a matter of time for it to be discontinued.

Tim Wescott · « **Reply #8 on:** December 28, 2015, 02:14:10 PM »

Quote from: Jim Svitko on December 28, 2015, 02:09:00 PM

It was so good that it was only a matter of time for it to be discontinued.

While it is discontinued, there's still a ton of lightly used ones on eBay, with RC carbs on them. They'll run pretty well with the RC carb if you make sure you have a fresh O-ring, and they're easy to convert to "pure" CL with a venturi.

So I think the engine has legs even yet.

SteveMoon · « **Reply #9 on:** December 28, 2015, 07:20:44 PM »

Buccaneer 740, designed by Allen Brickhaus. This is a very good flying
airplane that is also quite easy to build. It has 575 sq in of wing area
and is perfectly suited to the OS LA 46.

Steve

Brett Buck · « **Reply #10 on:** December 28, 2015, 07:29:34 PM »

Quote from: SteveMoon on December 28, 2015, 07:20:44 PM

Buccaneer 740, designed by Allen Brickhaus. This is a very good flying
airplane that is also quite easy to build. It has 575 sq in of wing area
and is perfectly suited to the OS LA 46.

Steve

I agree with that one. It's a simple box fuselage with more-or-less conventional aerodynamics, pretty sharp-looking when finished neatly.

Brett

Motorman · « **Reply #11 on:** December 28, 2015, 09:40:14 PM »

Quote from: Crist Rigotti on December 28, 2015, 12:37:40 PM

Legacy 40.

Nailed it.

Freddy, I'd suggest one of the sub 600 Brodak kits. They are fairly priced and come with detailed instruction book and the laser cutting is best I've seen. The Vector 40 and the Legacy 40 have modern numbers and you would have plenty of power to run in a flat 4 stroke with an LA46/11-4 on 10%.

MM

Dave_Trible · « **Reply #12 on:** December 28, 2015, 10:03:03 PM »

There are very many good designs to be built from plans but for an available kit at a good price right now the Sig Super Chipmunk wouldn't be bad. Your LA .46 would work well. The best one I ever saw had a McCoy series 21 .40 in it- roughly the same weight and power. I think I saw where they are even on sale right now. It makes a good looking airplane that flys pretty well and isn't a difficult build.

Dave

Bill Johnson · « **Reply #13 on:** December 29, 2015, 07:03:40 AM »

My Vector 40 was a solid flyer with an LA46.

Also, Kaz Minato still has a dozen new OS 46LA-S' for sale @ $87.34 each. I ordered a pair from him and he shipped fast and cost wasn't bad at all.
http://www.shop-online.jp/mnti/index.php?body=list&category_id=88348&PHPSESSID=71402653cd6a62ed1e9924e0fb3e28e5

john e. holliday · « **Reply #14 on:** December 29, 2015, 09:14:30 AM »

Hey Fred the Hobo and the LA 46 is a great combo in my mind as that is what is powering mine.

Tom Niebuhr · « **Reply #15 on:** December 29, 2015, 01:09:02 PM »

Fred,

The "Hobo" is good for .35 through .46 engines, and has been flown with all of them.

I sent a private email to you from my email address.

Motorman · « **Reply #16 on:** December 29, 2015, 03:55:15 PM »

That Hobo looks like a short coupled design, how old is it?

MM

Tim Wescott · « **Reply #17 on:** December 29, 2015, 04:00:29 PM »

Hey Fred:

You asked about building the Twister wing. Here's a link:

http://stunthanger.com/smf/building-techniques/fancherized-twister-build/

Tom Niebuhr · « **Reply #18 on:** December 29, 2015, 05:06:20 PM »

Motorman,
(I wish people would use their real names)

The Hobo was published in Model Aviation 5 years ago.

It is not a large airplane and is meant to be a step up from profiles that is simple to build. And will fly much, much better.

The span is 46", Area = 477 sq. in.

The moments are Nose = 8", Hinge to hinge is 14.5"

This is not short coupled for an airplane of this size.

It also has a modern airfoil , not the thin pointy airfoils of the past.

The "Hobo" has met all of my design objectives.

Everyone who has built a "Hobo" is very happy with it.

Tom Niebuhr · « **Reply #19 on:** December 30, 2015, 03:08:36 PM »

Motorman,

Here are pictures of my Hobo. Not at all short coupled.

JIM Nordin · « **Reply #20 on:** December 30, 2015, 07:15:08 PM »

Does someone kit the HOBO ?

Randy Cuberly · « **Reply #21 on:** December 30, 2015, 07:57:19 PM »

Quote from: JIM Nordin on December 30, 2015, 07:15:08 PM

Does someone kit the HOBO ?

Yes! The Fellow in the photo just above. He also designed it and it flies very well! His name is Tom Neibuhr.

Randy Cuberly

Motorman · « **Reply #22 on:** December 31, 2015, 09:06:37 AM »

I'm starting to build my first Advanced stunter (Thunder Gazer) and I can see the features on the Hobo that make it easy to build. Sheet tail, external push rod with surface mounted control horns, no leading edge sheeting, box fuselage with bubble canopy, straight wing, no wing tips, external tip weight, bolt on landing gear, no engine cowling. The only thing I can see is that it's small. A good step up from ringmaster/flight streak planes but can you scale up the kit to 575?

MM

Chris Belcher · « **Reply #23 on:** December 31, 2015, 09:48:20 AM »

I second the Bucaneer 740 with an LA46. I had one of these back in the 90s with a Stalker 46 and it got me from Intermediate to...well...good Intermediate. It is very easy to build...(mine was foam wing) the hardest part is some hollowing for the cowl, but nothing like a nobler. A little more than just a box fuse and competition worthy in advanced I'd say. Wish I still had mine...it was a great flyer and would be even better with the extra power of the LA46. Lots of sqaure inches and 54" wing if I remember correctly...mine weighed 49 ozs with silk and dope.

Chris Belcher · « **Reply #24 on:** December 31, 2015, 10:07:13 AM »

Well...now i want a new bucaneer!!! Does anyone still kit the foam wing 740?

Crist Rigotti · « **Reply #25 on:** December 31, 2015, 01:08:50 PM »

If Allen Brickhaus were still around he'd say to enlarge the tail percentage to at least 25% or more of the wing area for both the B-740 and the B-746.

Fred Quedenfeld jr · « **Reply #26 on:** January 06, 2016, 05:32:15 PM »

Quote from: Tom Niebuhr on December 30, 2015, 03:08:36 PM

Motorman,

Here are pictures of my Hobo. Not at all short coupled.

Tom
Thanks for the ribs
Can you talk someone into cutting the fuselage
the laser cut parts would ensure a square fusse
Fred Q

Daniel_Munro · « **Reply #27 on:** January 06, 2016, 05:58:07 PM »

Quote from: Crist Rigotti on December 28, 2015, 12:37:40 PM

Legacy 40.

I'll second the Legacy 40. Easy to build and an awesome flier.

phil c · « **Reply #28 on:** January 09, 2016, 03:28:03 PM »

Build the Hobo. Very easy build. An LA 46 would be perfect, as long as you get the balance point on target. Fits right in with the big motor/easy running crowd.

bob whitney · « **Reply #29 on:** January 10, 2016, 11:29:07 AM »

no one has mentioned the Oriental . simple to build ,flys good