Good Profile stunter for LA25 engine?

[Shug Emery]

I'm looking at the Shark 402 profile for my new LA25. Are there any other suggestions I may be missing out on?
Thankee for any info.
Shug

[Motorman]

Ringmaster

[wwwarbird]

 The Shark would be a great choice Shug, much better airfoil than the Ringmaster.

[Balsa Butcher]

Shark 402 would be my choice...in fact it is, great flier and has done really well in the .25 stunt class we have out here in NorCal. Build it light and stock to include the removable 3/32 wire single wheel main lg. A balsa tripler on the nose it not part of the design but could be added. With an FP or LA 25 it is really not necessary as they are very smooth running engines. Put a skid on the outboard wing tip if you must. I added a tailwheel to help tracking on asphalt and have no trouble making smooth take-offs and landings.

[Dennis Moritz]

Fancherize Twister built lite. A fellow in Philly flies a Shark 402 in Advance. Always does very well. Powered by electric.

[Avaiojet]

Shug,

I would suggest you build a Flite Streak. Thick wing, ahead of it's time, a great stunter and for sure, a good looker!

Here's mine. Just waiting for the clear coat!

[Clint Ormosen]

Ringmaster

I think he's looking for a good flying model.

[Douglas Ames]

Shug,

I would suggest you build a Flite Streak. Thick wing, ahead of it's time, a great stunter and for sure, a good looker!

Here's mine. Just waiting for the clear coat!

FLITE STREAK Flys great with a .25LA.

Nice model Charles, good movie too. I'm a 007 fan also. Some of the early ones seem corny compared to today.

[Avaiojet]

FLITE STREAK Flys great with a .25LA.

Nice model Charles, good movie too. I'm a 007 fan also. Some of the early ones seem corny compared to today.

Dug,

You're to kind. I went a bit overboard for a profile. But it was fun.

 Shug build the Flite Streak!

[Tim Wescott]

If 402 is the wing area, then a Shark 402 should work well.

Personally I'd go with a Skyray 35, or a Flight Streak stretched out to Skyray 35 dimensions.

The Ringmaster is a fun plane to build and fly, but you enter it into competitions so you can say "look how many points I got with a Ringmaster", not to win and learn stunt.

[Balsa Butcher]

Here's one that only became available recently and I would choose over all that have been mentioned so far: Topflite/RSM Tutor. Not the ARF Tutor II but the original Tutor that Eric over at RSM is taking orders for. Back in the day we would build them light and fly them in "A" stunt with with Veco 19's. They have flaps and Eric extended the tail moment by 1". With an LA-25 it would be a very competitive airplane.

[Brent Williams]

I am about 2 weeks away from flying my Corehouse Streak RST (Rugged Stunt Trainer.  It's supposed to be right there in the ballpark with the Shark 402 and the Skyray.  Nice big 440" wing, designed around the LA25.  It is a very easy kit to build and totally modular should the need arise to replace the foam wing.  A replaceable wing will be an advantage when I start the aerial campaign in the ground (stunt) war.

Another design that intrigues me is the Ground Fault, designed by Igor Burger.  Not much info out there on it, but Igor is the current world F2B champ.  
Classic, Flite Streak-esque aesthetics, but modern aerodynamics and numbers.  Slightly enlarged version of Igor's "Tiny"  
Plans at: http://www.hippocketaeronautics.com/hpa_plans/categories.php?cat_id=71

[kenneth cook]

             I'm very pleased with Brodak's Magician. Ken

[rich gorrill]

Shug, all choices given are fine options, I assume you just want a fun plane to fly, non-flapped, I have a Brodak Magician and a Flite Streak, my choice would be the Streak. Easy build, easy to keep lite and a blast to fly.

Rich

[Shug Emery]

I thankee everyone. Much to consider now.
Add the Feno into the mix.

[Balsa Butcher]

Feno is not a profile...

[George]

I thankee everyone. Much to consider now.
Add the Feno into the mix.

 
Although the Feno is not a profile, it is a great little plane.

If you are building from plans, take a look at the "Medic". It was designed by Ted Fancher and is available from PAMPA. 

George

[Russ Main]

If you haven't made a decision, consider the Mackey Profile by Walter Umland. The kit is great and flies fantastic.

[Shug Emery]

Feno is not a profile...

The Feno may sway me otherwise.....

[Shug Emery]

 
Although the Feno is not a profile, it is a great little plane.

If you are building from plans, take a look at the "Medic". It was designed by Ted Fancher and is available from PAMPA. 

George

I want to go from a kit...not that experienced of a modeler at this point!

[Bill Little]

Hi Shug,

You are definitely experienced enough to build the Medic from plans.  all the ribs are the same, everything else is very simple.

Also, I *believe* Walter Umland is making a kit!

BIG Bear
RNMM/AMM

[DanielGelinas]

I believe the medic is available as a kit from Walter Umland. THat would be a great plane for the LA 25

[Guy B Jr]

Yes, Walter Umland is producing a kit of Ted Fancher's MEDIC. I have one. It is a great looking laser cut kit. It is high on my build list as soon as I finish several that are half built now.

[Phil Krankowski]

If 402 is the wing area, then a Shark 402 should work well.

Personally I'd go with a Skyray 35, or a Flight Streak stretched out to Skyray 35 dimensions.

The Ringmaster is a fun plane to build and fly, but you enter it into competitions so you can say "look how many points I got with a Ringmaster", not to win and learn stunt.

So...what would happen if a ringmaster was stretched out to Skyray35 dimensions? (and would it still look "ringmaster"?)
Phil

[Tim Wescott]

So...what would happen if a ringmaster was stretched out to Skyray35 dimensions? (and would it still look "ringmaster"?)
Phil

In descending order of importance, the problems with a Ringmaster are:

• The pollywog airfoil is prone to stalling
• The elevator is too big
• The tail is too short

If you stretched a Ringmaster out to Skyray dimensions, and gave it a Skyray airfoil, then kept the huge elevator (because otherwise it just wouldn't look right, then it may be pretty good.  You'd want to use a huge bellcrank that's really "geared down", because you wouldn't need much elevator throw.

It'd mostly look like a Ringmaster when you're done.

[John Craig]

http://stunthanger.com/smf/index.php?action=dlattach;topic=34331.0;attach=141656;image

I just finished my Gotcha Streak RST a couple of weeks ago, about a dozen flights.  I added a gear & wheels. Almost trimmed to my liking, flies as well as anything I have ever flown (2 FliteStreaks, 3 Ringmasters, Banshee, SkyRay & Smoothie).  Id est. it flies better than I can. Beginner pattern on about 1.5 oz. of fuel, OS 25 FP.  It will be the plane that allows me to do a respectable Beginner pattern. It could be built in a week of evenings.  The construction is not that much different from a U-key.

[Brett Buck]

In descending order of importance, the problems with a Ringmaster are:

• The pollywog airfoil is prone to stalling
• The elevator is too big
• The tail is too short

If you stretched a Ringmaster out to Skyray dimensions, and gave it a Skyray airfoil, then kept the huge elevator (because otherwise it just wouldn't look right, then it may be pretty good.  You'd want to use a huge bellcrank that's really "geared down", because you wouldn't need much elevator throw.

It'd mostly look like a Ringmaster when you're done.

  Bob Reeves took it one step further and designed the Twistmaster. If you want something with a Ringmaster-y look but flies well, that is probably the ultimate development of the idea.

    Brett

[Tim Wescott]

  Bob Reeves took it one step further and designed the Twistmaster. If you want something with a Ringmaster-y look but flies well, that is probably the ultimate development of the idea.

You overlook Pat Johnson's Ringmaster 575, I think.  That's a bit big for a 25, though.

[DanielGelinas]

You overlook Pat Johnson's Ringmaster 575, I think.  That's a bit big for a 25, though.

If it's too big, then there is the ringmaster +P

[wwwarbird]

I think he's looking for a good flying model.

[Andrew Saunders]

A ringmaster or a flite streak

[wwwarbird]

 Here's a couple of examples Shug, a Shark 402 built from a Brodak kit with a few of my own mods including a sheeted wing L/E and also Super Combat Streak built from a Walter Umland kit. I added two wheel L/G to each of them to be able to enjoy and practice "normal" takeoffs and landings. Each of these are great flying models for their size. Mine are powered with .35's but an LA.25 would do well on them. I'm still curious about the Magician, it's a neat 'ol design, I've got to bust open the box on my shelf one of these days.

[Steve Hines]

I just built the Corehouse RST. Started it on a Friday and it was flying on Sunday. I used a os 20,  the Buck setup. Sam could fly the pattern with it. the only think is it crashed on take off with me when it hook a weed. The front lead out is up. It was the best airplane that I flown, and I not a good flyer. Its the only plane that I have been able to fly inverted for more than a lap with out bailing.

Steve

[Shug Emery]

Here's a couple of examples Shug, a Shark 402 built from a Brodak kit with a few of my own mods including a sheeted wing L/E and also Super Combat Streak built from a Walter Umland kit. I added two wheel L/G to each of them to be able to enjoy and practice "normal" takeoffs and landings. Each of these are great flying models for their size. Mine are powered with .35's but an LA.25 would do well on them. I'm still curious about the Magician, it's a neat 'ol design, I've got to bust open the box on my shelf one of these days.

This sorta clinches it.........the Shark 402 is my first choice. Thanks Wayne, that picture sealed the deal.
My runner-ups are the Medic but it is much more expensive but will get added later. And the RSM Stuka which I must build when I want a full fuse.
Thanks for all the input everyone.....
Shug

[GonzoBonzo]

Great choice!

[wwwarbird]

 Shug,

 That's great, but just a reminder that the stock 402 doesn't have the sheeted wing L/E or hollowed wingtip blocks like you see on mine. Just for kicks when I built it I had a new rib set cut (I forget by who here???) so that I could build it with the sheeted L/E. It still uses the stock airfoil externally but with a slightly trimmed down rib outline to allow for the sheeting. Next time we're all at the field remind me and we can compare mine to Keith's 402 side by side, his is built straight from the kit except he added two wheel L/G to his too. We both used the Sig "Fazer" aluminum profile gear on them. I made a few other slight cosmetic mods to mine as well but nothing that would affect flight performance either way. Go ahead and build a stock one and I'm confident that you'll be very happy with it.

[Shug Emery]

Shug,

 That's great, but just a reminder that the stock 402 doesn't have the sheeted wing L/E or hollowed wingtip blocks like you see on mine. Just for kicks when I built it I had a new rib set cut (I forget by who here???) so that I could build it with the sheeted L/E. It still uses the stock airfoil externally but with a slightly trimmed down rib outline to allow for the sheeting. Next time we're all at the field remind me and we can compare mine to Keith's 402 side by side, his is built straight from the kit except he added two wheel L/G to his too. We both used the Sig "Fazer" aluminum profile gear on them. I made a few other slight cosmetic mods to mine as well but nothing that would affect flight performance either way. Go ahead and build a stock one and I'm confident that you'll be very happy with it.

I love the full fuse one Keith has,,,he was flying it the other day. Silver and very Sci-Fi looking in flight.
Thanks for the info. Did you add that fuse doubler on the inboard or is that the kit?
These are my Winter projects. Time to learn to silkspan/polyspan and paint.

[wwwarbird]

I love the full fuse one Keith has,,,he was flying it the other day. Silver and very Sci-Fi looking in flight.
Thanks for the info. Did you add that fuse doubler on the inboard or is that the kit?
These are my Winter projects. Time to learn to silkspan/polyspan and paint.

 Huh??? Keith's isn't full fuse, the Shark 402 is a profile design. Both of ours do have nose "triplers" on them though. I believe the "tripler" is per the kit design but I don't recall for sure without digging out my plans. If not it's easy enough to just make one and I do recommend it on most any profile.

[Shug Emery]

Huh??? Keith's isn't full fuse, the Shark 402 is a profile design. Both of ours do have nose "triplers" on them though. I believe the "tripler" is per the kit design but I don't recall for sure without digging out my plans. If not it's easy enough to just make one and I do recommend it on most any profile.

I could be mistaken but I thought he had a full fuse Shark at the field. Maybe another name.
***Nope....it is a profile Shark 402!

[David_Stack]

Good Morning Shug;

  A few decades ago, there was a series of full-bodied "Shark" stunters, designed by Lew McFarland.  Versions were 'sized' for .15's, .45's, and I think .35's as well.  That may be the model you are thinking of...

  The Shark 402 is designed by Pat Robinson IIRC, and is a profile as several have mentioned.  I think it was inspired by the earlier generation of Sharks from an aesthetic perspective.

  As others have said, it flies very well (to this neophyte), and with a forward c/g and appropriate control throws is serving as my stunt trainer.  http://s1325.photobucket.com/user/DRStack/media/Shark402_zps6e65d1c1.jpg.html

All the best,
Dave

[Geoff Goodworth]

Pat Johnston, David.

[David_Stack]

Thanks Geoff!

Pat Johnston it is...  (that's what I get for typing 'off the cuff' and without the aid of coffee) 

r/
dave

[Tony Drago]

How about a Jetco Sabre Sonic.

[Shug Emery]

How about a Jetco Sabre Sonic.

I have already ordered the Shark 402. But will put it on my later-list....
Thankee.

[Akihiro Danjo]

Then put this on the next list.
Doodlebug440 from BuiltrightFlyright.
The model in this photo is not LA but FP25.
I recommend 17 to 17.5 meters .015" wire (e to e) for F2B.
Aki

[Shug Emery]

Then put this on the next list.
Doodlebug440 from BuiltrightFlyright.
The model in this photo is not LA but FP25.
I recommend 17 to 17.5 meters .015" wire (e to e) for F2B.
Aki

That is very much on the list now.....Arigato.
Shug-san

[wwwarbird]

 A pair of Shark 402's here, Fox .35 powered...

[Shug Emery]

Got my Shark 402 kit from Brodak on Friday. Was nice to see the side by sides today and the rudder, flap and leading edge mod that you did Wayne.
I'll more than likely build as it is.
Shark On)))))
Shug

[John Miller]

Several years ago,  I was asked by one of our Brazilian forum members, if I could, or would, re-draw the .40 sized pathfinder into a smaller size for .25 - .35 engines. The area of this smaller Pathfinder is 530 sq, inches.  Should be pretty good with a .25-.30.

 Cheers

John Miller

[FLOYD CARTER]

I'm sitting here, looking at my Ringmaster S-1, and wondering why it doesn't look right.

Now I have it!  The wing is sort of squared-off, with straight lines.  The tail end is all rounded-off.

^The parts just don't match.

So my next project:  cut off the stab and rudder and build one that matches the wing, with straight lines and all.

Would still fly the same, but would look much better.

F.C.