STOCK STATUS IS NOT 100% ACCURATE, BUT VERY CLOSE.
| Versions |
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S - STANDARD HP - HIGH PERFORMANCE HP versions include: -CF reinforced wings -Hinges installed -Canopy installed -Firewall installed |
| TBM EXCLUSIVE HP FUEL SYSTEM! |
| Included is Fuel Tank | Fuel Filter | Fuel Dot | Pre Installed and Safety Wired 
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| Shipping - Shipping is from Florida |
| Version, Color |
Part # | Order | Status | Shipping |
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| HP #02 |
SDYAK-87-02-HP | In Stock $549 |
$89* | |
| HP #10 |
SDYAK-87-10-HP | In Stock $549 |
$89* |
*Quoted shipping prices: 30%, 33%, 35% ship via UPS. All planes are double boxed with plywood between the two boxes for added protection. Prices above are within the 48 contiguous states. 37.5% and 40% ships by 18-wheeler to a business address only . Note! Some 33%-35% planes may need to ship by 18 wheeler, we will let you know if this is the case. There is no price difference for the shipping.
| PHOTOS: | |
Color Schemes: | |
| Red & Blue |
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| Orange/White/Black Color #01 |
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| TEAM SCHEME Color #02 |
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| Russian Thunder Color #06 |
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| Russian Sunrise Color #10 |
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| FEATURES: |
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The 35% Yak has the largest wingspan and largest wing area of any 35% plane. For instance the 35% TOC-Xtreme Yak has 15% more wing area than the Aeroworks 35% Yak, so the plane is the most forgiving and the best for slow flight than any plane that I am aware of. TOC-Xtreme are the best planes in my opinion. The have great pricing, they have the best supply, and they are constantly improving their product. They are thelowest wing loadings in most cases, and they fly the best. They are almost perfect. Aeroworks planes build faster, but they are heavier and don't fly as well. Garrett Morrison is one of the best pilots in the world and he is helping out tremendously with the design and testing of the new planes. They use Ultracote. They should be the ones that you consider first. Lee Lamury, above, is extremely helpful in having planes built to our specifications. Lee is the reason that the quality of the TOC-Xtreme planes is so good. - Great aerodynamic design - Designed for precision aerobatics and 3D - Strong, Light Weight Construction - Complete and Detailed Instruction Manual available online - Unpainted Aluminum Landing gear - Hardware Package Included - Aluminum Wing Tube - Aluminum Stab Tube - Professionally covered in Ultracote - not "Chinacote" - Large control surfaces double beveled for maximum throw - Fiberglass Cowl and Wheel Pants are painted extremely well with automotive type paints. - Canister & Pipe READY! - 25 to 40 hour assembly Time - Hinges: Robart type - not glued in. Included Hardware: -Aluminum spinner -fuel tank -aircraft grade aluminum wingtube -aluminum main gear -rubber wheels -aluminum stab tube for removable stab -control horns -hinges -wheel pants -SAE bolts and nuts and much more. Note: A tailwheel is included for the 30% only. It is an an inexpensive plastic tailwheel, not a CF one. If ordering a 33% or larger plane, please order a tailwheel if you need one. The new TBM tailwheels are the best. They are the least expensive, lightest, easiest to install, most reliable, and uses the largest tire. |
| Specs | 30% Yak 54 | 33% Yak 54 | 35% Yak 54 |
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| Wingspan | 87'' | 95'' | 107''*** |
| Wing Area | 1422 sq in | 1742 sq in | 2223 sq in |
| Length | 75.5'' | 89.3'' | 95'' |
| Weight | 16.5 lbs | 21.5 lbs | 30 lbs |
| Wing Loading | 26 oz/sq ft | 26 oz/sq ft | 31 oz/sq ft |
| Engine | 50cc | 75 - 80cc | 100cc |
| WingTube (alum) |
25mm x 915mm 7.5 oz | 38 x 848mm 13.5 oz | 38x933mm 14.6 oz |
| Wingtube (Optional CF) |
save 4.3 oz | save 6.5 oz | save 6.6 oz |
| Stabtube(s) (alum) |
12.5mm x 450 1.8 oz | 18 x 440mm 2.2 oz | 18x490mm 2.4 oz |
| Stabtube (Optional CF) |
save .9 oz | save 1.1 oz | save 1.1 oz |
| Landing Gear (alum) |
9 oc | 14 oz | 15 oz |
| Landing Gear (Optional CF) |
save 4 oz | save 7 oz | save 5 oz |
| *** The 35% Yak has the largest wingspan and largest wing area of any 35% plane. For instance the 35% TOC-Xtreme Yak has 15% more wing area than the Aeroworks 35% Yak, so the plane is the most forgiving and the best for slow flight than any plane that I am aware of. | |||
| Specs | 37.5% Yak 54 | 42% Yak 54 |
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| Wingspan | 121'' | 129'' |
| Wing Area | 2854 sq in | 3247 sq in |
Length |
108.5'' | 124.5'' |
| Weight | 37.5 lbs | 44 lbs |
| Wing Loading | 30 oz/sq ft | 31 oz/sq ft |
| Engine | 150cc | 150 - 200cc |
| WingTube (alum) |
50x1025mm 22 oz | 50x1200mm 24 oz |
| Wingtube (Optional CF) |
save 9 oz | save 9 oz |
| Stabtube(s) (alum) |
25x600mm 4.7 oz | 25x760mm 6.2 oz |
| Landing Gear (alum) |
28 oz | 2.3 lbs |
| Landing Gear (Optional CF) |
save 17 oz | N / A |
| FULL SCALE INFORMATION: | ||||||||||||||||||||||
YAK 54
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| NOTES: |
We put together a 40% TOC-Xtreme Yak with a ZDZ-210. It has three HS-5955 servos on each wing, two on each elevator and a Seiko on the rudder. This plane flies like a 14 oz foamy plane! Notice the 70 degrees of throw on the elevators, the 50 degrees of throw on the ailerons and the enormous rudder. For the utmost in power we used TBM 4-cell batteries into a Fromeco regulator and Power Expander. Each servo plugged into its own port on the Power Expander. We ran the servo voltage at 6.5v and the servos were flawless. The ZDZ-210 performed perfectly. We used the standard ZDZ starting procedure of 5/5/1 (5 flips choke on, full throttle, ignition off, 5 flips choke off, full throttle, ignition off, 1 flip at idle, choke off, ignition on) and it started up on time every time. We put this plane into full throttle blenders, and the plane spun so fast it was just a blur. It does knife edge loops that are really, really tight. If you want to put on a show at any flying field in the world, this plane will do it. In the first minute of the first flight I put the plane into a torque roll. The plane was so stable in a torque roll that I could take both hands off of the transmitter and hold them over my head for 5 seconds. I never flew a plane that torque rolled so easily. I have flown all the sizes and I prefer the 33% about the best. Teaming this with a ZDZ-80 the 33% has the most power to weight ratio of any plane that I have ever flown, including foamy planes! Of course the large versions are more impressive to fly, so I prefer flying the 40% for showing off. All 5 sizes of the TOC-Xtreme Yaks fly great, better than any other brand I've tried. Which ever size you choose, you will enjoy the heck out of one of these planes!
WE FLEW THE DA-85! RUNS GREAT! 33%
Yak is 21.5 lbs as shown. I flew the 33% Yak with the DA-85 for the first time on Sunday 7/23. This is the finest 3D machine I have flown. The enormous rudder allowed me to do knife edge flips. I could hover at 1/4 throttle, then punch it to full throttle and hit full rudder, and the plane would spin around 270 degrees and fly off in a knife edge without losing altitude. Incredible. It hovers hands off. Highest quality wood ARF available. The video shows off the Aviation Models Yak 54's 3D capabilities as well as its ability to fly precision. You get the best of both worlds. The huge wing offers a wing loading so low that it flies like a trainer. This is one of the best planes available for a pilot's first gas plane, however, in the hands of an experienced pilot, this plane will do any maneuver with ease as well. The Yak is one of the best designs for precision aerobatics. The most obvious proof of this is to simply look at pattern planes. Pattern planes are not scale planes. Pattern planes are simply the best shape of an airplane to fly at the very highest level of precision. Pattern planes have been tweaked and tweaked for decades. The shape of the rudder, the placement of the rudder, the placement of the stabs, the placement of the wing towards the centerline of the plane, the use of double tapered wings, the thrust line of the engine, all have been massaged to make the ultimate flying machines. Is it true that no pattern plane has a round cowl or fuselage like a Yak, however this fuselage design is not too bad, and the rest of the characteristics are as good as then can get! Design Three important design factors of a great flying aircraft follow. The Aviation Models Extra 260 is well designed in all of these areas. 1) Low pitch coupling - when the rudder is applied, most aerobatic planes pitch to the belly. Reducing this is extremely difficult to do. The relationship between the thrustline, wing location, stab location and rudder shape are critical. Typically the stab is located on the thrustline, the wing is just a little low, and the rudder area above and below the thrustline is as even as possible. If incorrectly designed, serious flying problems result. When you are flying straight and level and you use the rudder to adjust the flight path, or if you are flying knife edge, or if you are simply flying a loop and you are using rudder to stay on track, the last thing you want is the plane to pitch down with the application of rudder. This can be controlled with mixing in a computer radio, but cannot be eliminated in all aspects of flying. If the plane isn't designed for low pitch coupling, then it will be a real handful to fly precisely. 2) Low roll coupling - when the rudder is applied the plane may roll. This is due to the dihedral in the wing and the shape and position of the rudder. The more the dihedral the more the plane will roll with rudder (called proverse roll coupling), however, too little dihedral will make the plane roll the other way (called adverse roll coupling). This must be designed in during the prototype stage so that there is none. This can be designed into any aerobatic plane. Just the same as above, when you apply rudder, you want yaw only, no pitching, no rolling. This really shows up in slow rolls. You will noticeably see the roll rate of the plane speed up and slow down when you use the rudder. This makes you look like a bad pilot. 3) Wing Loading - the relationship between the weight of the plane and the size of the wing. When you get a plane, starting off with a plane which comes out light is the first step. Starting with a heavy airframe is difficult (and expensive) to overcome. Keeping weight to a minimum is critical to many aspects of performance. This is something that the designer has control over - but the pilot can have a large influence on this as well. When we recommend parts to the pilot we suggest the lightest parts possible. |
WARNING - Gasoline and Turbine powered aircraft are not manufactured to withstand unlimited G's. Any aircraft can fail, be it a wing folding up or a fuselage breaking in half under too high of a load. Just as any full size aircraft, model aircraft have a maximum G rating. Because you are not in the plane flying it and experiencing the G's and reading the G-meter, it is more difficult to judge the G's on the aircraft, and it is very easy to exceed the limits of the aircraft. Understand that if you perform a snap roll, parachute, wall, blender, knife edge loop, or pull hard on the elevator at almost any speed, you can be putting in excess of 15 G's, even in excess of 30 G's, and most aircraft can only designed to take 10-12 G's. If you perform any violent maneuver, you can break your plane. When I perform hard maneuvers, especially for the first time on an airframe, I am prepared for a failure and am prepared for it as best I can be. This mainly includes performing the maneuver far enough away from spectators that in event of a failure that I am not endangering others. In addition, be prepared for the manufacturer to not pay for a new airframe which is broken during flight. It is common practice for any manufacturer to not replace an airframe which breaks in the air or upon landing. I have only seen manufacturers replace airframes when they have received many of the same failures and the manufacturer determines that there was a design or manufacturing error. If you break an airframe, and you are the only one to do so, then it is probably not the fault of the manufacturer. Please fly safely, and avoid full throttle operation other than at low airspeeds.
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