When you have a propeller, you want power.. Serious power. Power to pull through complex maneuvers, take off from the runway like a man and fly with authority. At DAW, we vowed that no electric powered model would leave our factory without satisfying these demands. The result? Take a look at these...
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Specifications:Span: 30", Length: 22", Area: 150 Sq.In., Flying Weight: 16 to 17 ounces, Airfoil: NACA2412 root, 1410 tip. Control functions: Aileron, Elevator, Rudder, Throttle. Power: 6V Speed 400, ESC with BEC, 7 cell 500 to 600 mah battery pack, four micro servos. Not Available. |
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The Extra 300S is a plane well on it's way to being one of the most easily recognizable and highest performance civilian aircraft in history. A model of this famous design needs to live up to the reputation of it's full-scale counterpart, which is indeed a tough act to follow! This plane can do it all - point maneuvers, inverted flight, spins, snaps, lomchevaks, you name it! Vertical performance is very impressive and provides enough excitement to surprise and satisfy even the most skeptical glow power pilots. Tired of doggin' around the sky? Strap this baby on and get a taste of some real turn 'n burn fun!
See below for General Information on the kits..
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Specifications:Span: 30", Length: 22", Area: 150 Sq.In., Flying Weight: 16 to 17 ounces, Airfoil: NACA2412 root, 1410 tip. Control functions: Aileron, Elevator, Rudder, Throttle. Power: 6V Speed 400, ESC with BEC, 7 cell 500 to 600 mah battery pack, four micro servos. Not Available. |
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The Staudacher S300 is a little more obscure example of the modern IAC (International Aerobatics Club) unlimited aerobatics ship. The full-scale aircraft are all custom made, by hand, by Jon Staudacher for world-class aerobatics competitors. It's clean, functional lines give it an assertive look of strength and confidence. The main differences between this model and our Extra 300S are a lower thrust line and slightly higher stabilizer position. The wing planform, airfoil and tail volumes are the same across both models, and the Staudacher will offer you the same sparkling aerobatic performance as it's stable mate, the Extra 300S. For those looking for a ship that's a little out of the ordinary, this model is sure to please and will turn heads both on the ground and in the air no matter where it goes!
See below for General Information on the kits..
These models are for experienced pilots! You will be in command of a 30 inch span plane moving at about 60 MPH... if you have any doubt about being able to handle this sort of thing, take some time to consider if it's really for you.
This gives a general idea of what is included in the airframe kits...
Construction is typical DAW, with basswood spars, a balsa wing trailing edge and balsa tail group, as used on our mini warbirds. The fuselage is made from the stiff 1.9 lb. density EPP which allows use of the sectional areas required by a model this size to be practical. Covering is Ultracote, and there's no tape used in the construction. The motor mounts on a ply cowl plate and is removable by using the motor's own mounting screws without doing any surgery on the airframe. This allows a motor to be swapped in minutes. A monocoque battery box is built into the bottom of the fuselage below the wing and has a hatch to allow changing a battery in less than one minute, as well as fore/aft movement for CG adjustment. The landing gear do more than just complete the scale effect, as the plane is capable of taxiing and performing a rolling takeoff in about thirty feet. Be forwarned, planes like these can't be made totally crash-proof, but we've stuffed a couple of 'em pretty bad and never spent more than 45 minutes making repairs to put them back in prime condition, so it's still a great alternative to delicate composite models. Building time is about 8 hours for the airframe, and 2 to 6 hours for covering (depends on how extreme you get on the color scheme). All hardware including landing gear and wheels is included in the kit.
Note - See our foamie construction tips page for an overview of the above items
4 channel - Aileron/Elevator/Rudder/Throttle. Recommended radio equipment includes (4) micro servos, and a mini receiver. Servos we've tried and like include the FMA S-80, Cirrus CS-10BB and Ace R/C 8112. Other servos that will also work include the FMA S-90 and Cirrus CS-20. Obviously, there's no way we can possibly test every micro servo on the market, so just realize that it's imperative on models like these to have servos that center extremely well! Having a servo double-neutral on these models is sure disaster. We've used Hitec HS-50's, but have had mixed results, so beware. Can you get away without a rudder? Yes, but you'll limit your aerobatic capabilities.
We used the Hitec 555 and 535 receivers throughout the test program. The 555 is 1/4 inch shorter than the 535, but the 535 also fits nicely. Any receiver of comparable size to these will work perfectly fine, though we've found that models utilizing a vertical pin block fit a little better and make wire routing a little easier. Full-scale drawings are included in the instruction manuals so you can compare component sizes before buying.
Motor:
The Foamie Aerobats were designed around the widely available, inexpensive, 6 volt rated 'Speed 400' motors (Mabuchi RS-380). Any company's Speed 400 motor will work fine. Naturally, if you want even more power, there's several 'hopped up' Speed 400 motors available from various makers, as well as exotic brushless types designed to fit in airframes aimed at Speed 400 power.
Spinner / Prop adapter:
Surprisingly (at least to us), the only company that makes a good spinner / prop adapter assembly is Graupner, whose model 1298.2 assembly was used on all our prototypes.
Propeller:
Our favorite propeller has been the APC 5x5 for Speed 400 motors. Works great, is very tough and also inexpensive. The Graupner CAM 5x5 will also work just fine, and it's actually quite difficult to tell the difference between the two in flight performance. For a more 'torquey' setup, you can also try the APC 5.5x4.5 prop.
Electronic Speed Control (ESC):
Both the Jeti JES-10 Compact ESC and the Kontronic Rondo 400 are really ideal for these models, and are very elegant designs; they bolts or solder right onto the motor's backplate. NOTE.. the JES-10C has been superseded by a new model, the JES-14; either is suitable. Although the Jeti controller specifications indicate it's only designed to run three servos on it's battery eliminator circuit (BEC), we've had no problems running four servos on any of the prototype models using this controller. Again, there are several ESC's on the market, so if you decide on a different model be sure it meets these specifications:
The last of these topics may be the only stumbling block for many ESC's you may see. Although we haven't tried one ourselves, we've been told the Pixie 14 or Sprite 25, available from New Creations R/C, might be good candidates. We have an Aveox A-20 as well, which will work, but it's an extremely tight fit in the cowl. The Jeti JES-20 would also be a possibility, but it's a little weighty.