Archive for the ‘product review’ Category

Click here to read assembly log

Image for Carbon-Z® T-28 BNF Basic with AS3X® Technology from HorizonHobby

Key Features

  • Easy to complete final assembly
  • AS3X technology delivers flight performance that’s rock-solid
  • Electric retractable tricycle landing gear (installed)
  • Operational flaps with individual servos (installed)
  • Rigid Carbon-Z construction for a rigid airframe
  • Scale appearance with cockpit and radial engine detail
  • Spektrum 6-channel AR636A DSMX® receiver (installed)
  • Powerful 60-Size brushless power system (installed)
  • 7 × High-quality, metal-gear servos (installed)
  • Accepts a range of 6S 22.2V Li-Po batteries from 3500–5000mAh
  • Large canopy hatch with latch closure
  • Two-piece, bolt-on wings and stabilizers
  • Vivid trim scheme with U.S. Navy inspired graphics
  • 2-blade propeller (included)
  • Flat-style pin hinges on the ailerons, rudder and elevator
  • Scale landing gear strut details and two-piece main gear doors


The Friendly Warbird

The E-flite® Carbon-Z® T-28 airplane is a big warbird model with all the benefits that make RC flight fun. Exclusive Carbon-Z construction allows a large airplane such as this to be rigid like a conventional all-wood airframe, yet lightweight so it can have friendly flying characteristics. Plus, the durability of the Z-Foammaterial means that any bumps along the way are simple to repair. Numerous scale details include a cockpit with instruments and pilot figure while the fitted cowl highlights a dummy radial engine. Of course, no warbird would be complete without functional flaps and operational retracts—both are factory installed.

Since the boom of practical electric power, foam has been an important construction material for RC aircraft. Stable and lightweight, revolutionary Z-Foam material came along to add a level of resiliency and reparability that made RC flight more fun, especially for pilots with very little free time. Exclusive Carbon-Z construction combines the durability of Z-Foam, the strength of lightweight plywood and carbon-fiber with a specially designed hollow-core airframe to take high performance flight beyond any other construction method. Today, Carbon-Z delivers “Big Foam” with a platform that’s as friendly as the iconic ParkZone® T-28, yet maintains all of the above benefits for an experience that’s impressive at the field and in flight.

The advanced AS3X® (Artificial Stabilization – 3-aXis) system built into the Spektrum 6-channel AR636A receiver is what helps give the E-flite Carbon-Z T-28 an incredibly solid look and feel in the air. It works behind the scenes to help counter the effects of wind and turbulence by combining 3-axis sensing with specially tuned flight control software. As a result, an impressive model like the T-28 is made even better because your workload to fly smoothly is significantly reduced.

Start flying right away with your full-range 6+ channel transmitter with Spektrum DSM2®/DSMX® technology, a 3500–5000mAh 6S 30C 22.2V Li-Po flight battery and suitable charger.

Carbon-Z® Construction

Exclusive Carbon-Z technology features composite construction that allows the wing to be chambered, significantly reducing weight while increasing rigidity comparable to all-wood construction.

The AS3X advantage

The AS3X® technology that’s a part of the AR636A receiver installed in the T-28 BNF Basic version significantly reduces your workload to fly smoothly. Only its specially tuned electronics and software offer flight performance that feels rock-solid, right out of the box.

Electric retracts

The tricycle landing gear of the Carbon-Z T-28 feature nose wheel steering and the reliability of servoless retraction. Split-main gear doors and strut covers add to the scale appearance.

Operational flaps

The operational flaps feature movement much like the full-scale T-28 and independent servos for the most reliable system of control possible.

Scale detail

Under the clear canopy sits a pilot figure and additional cockpit detail. The cowling features a dummy radial engine and the scale-inspired paint scheme offers excellent in-flight visibility.

Powerful 60-size motor

The potent 60-size brushless power system drives a custom 2-blade propeller and is able to use a wide-range of 6S Li-Po battery packs from 3500–5000mAh (battery sold separately).

Easy assembly

The main-wing separates into two pieces for easy transport and features a fiberglass wing joiner. Each plug-in horizontal stabilizer half attaches to the tail section with a single screw.

High-quality metal gear servos

Seven servos throughout the airframe help deliver the primary control functions. The single micro-class servo for nosewheel steering saves weight while offering precise ground handling.

Key Specifications

Material: Z-Foam
Wingspan: 78 in (198 cm)
Length: 63 in (162 cm)
Wing Area: 1073 sq in (70 sq dm)
Flying Weight: 12.0 lbs (5.5kg)
Motor Size: 50-60 Size
Recommended Motor Battery: 22.2V 5000mAh 30C 6S LiPo
Minimum Required Radio: DX6
Recommended Fuel: Electric
Flaps: Yes
Retracts: Yes
Approximate Flight Time: 8 minutes
Approximate Assembly Time: Less than 1 Hour

Just installed a new Fourtitude R/C fuel tank in my new 50cc Aeroworks Sport Cub. The cub only had a few flights on it and dead sticked. Turned out the fuel tank was empty after a 5 minute flight. Removed the stock tank and saw that there were three splits at the bung hole.

I used this opportunity to install a 16oz fuel tank from Fourtitude R/C. As you can see in the picture these come pre-assembled and ready to install right out of the packaging.

Another great feature is that you can see through the tank to visual inspect the clunk line and confirm the fuel level. I put a couple of flights on the Sport Cub and had no issues with the new tank.

I enjoy watching documentaries and there are so few about the R/C hobby.  I haven’t seen this one yet but it looks interesting.

Update –  3/3/2012:  I received my DVD today and promptly hit the play button.  First off, this is a very well done documentary.  Thoroughly enjoyable and engaging.  Jay Thames, the director, did a good job telling his story through the personalities of the professional indoor R/C car racer.  You won’t be disappointed that the majority of the film is commentary and interviews (it is a documentary) and not lap by lap racing (go to YouTube to watch that) because the film never felt stale. I liked the way the interviews were done and the commentary at race side is fun.

I also enjoyed the throw back in time with the inclusion of commentary from Joel Johnson.  I was into R/C cars in the early 80’s and Joel’s name was everywhere. Brought back some fond memories.


A funny, yet dramatic, in-depth look inside the subculture of professional, competitive radio control race car drivers. Carpet Racers explores the lives of the men (and women) who’s love affair with RC is timeless.

Click here to read the build log

From the designer:

The Knockabout 46 is recognized across the country as one of the best sport flyers ever designed. Although it has been out of production for 2 years, I still get new inquiries and previous buyers calling, looking for another Knockabout 46.

The Super Knockabout is the same airplane, but enlarged to 80” wingspan and with a new semi-symmetrical airfoil. It flies just as well as the smaller size and actually lands a little slower. It has plug in wings to ease transportation and storage, and it’s perfect for large glow engines or 160 size electric power.

The Super Knockabout is now available as a built-it-yourself kit. The cowl, wing tube, landing gear and wheels are included. You supply the the pushrods and horns of your choice. This kit is made in very small quantities right here in the USA and that makes it expensive, but you cannot buy a better or more fun IMAA legal sport
plane for any price.

• Wingspan…………….. 80.5 inches
• Wing Area…………….. 1200 sq. in.
• Overall Length……….…64 inches
• Ready to Fly Weight……13 – 14 pounds
• Radio Equipment……….4 – 5 channels
5 – 7 servos
• Power……………Glow 1.20 – 1.80
Electric 2200 – 2700 watt

• IMAA legal
• Plug in wings
• Convenient battery hatch
• Fast and easy, self jigging, assembly
• Over 100 laser cut parts included
• All parts except sticks and sheeting are laser-cut
• Tail dragger and float mounts are built right in
• Designed, cut and boxed in the USA

Wings can be a pain installing when you have lots of servos to connect.  Besides having a rats nest of wires stuffed into the fuse, it’s important to be sure you have the connections correct.  Adding to the pain is finding out after you installed the wing you missed plugging in a servo.

The Ashlok connector solves this problem by combining all those servo connections into a single connection.  Ashlok has connectors for up to four servos.  If your wing has more than four servos, you group them using a “Y” harness.

I found a couple of sources for these connectors.  Thunderbolt R/C in Canada has the best information about the connectors and a source in the U.S. is Shulman Aviation.

The DSMX take away is “Frequency Agile”.

DSM2 uses two frequencies across the spectrum to hop on. DSMX uses 23 frequencies to hop on and uses a random frequency selection method.

I’d say that this approach is similar to the Futaba FASST system.  One difference being, if I’m not mistaken, is FASST hops on frequencies from one end of the spectrum to the other. DSMX randomly hops frequencies across the spectrum.

This reduces the chance of frequency collision with other 2.4 transmitters.  Not a big deal at a local club but becomes an issue with hundreds of pilots at large events.

DSMX has been in the field for over a year.  It’s claimed to have been thoroughly tested.

DSM2 transmitters can use new DSMX receivers and new DSMX transmitters can use DSM2 receivers.

DSM2 transmitters can be upgraded to DSMX.  The DX8 transmitter can be upgraded through the internet.  Other Spektrum and JR DSM2 transmitters can be sent to Horizon and for a fee upgraded to DSMX.

New from TLT Aviation.

Dual switches in a very nice anodized aluminum case. These switches can be used on airplanes with redundant batteries or on a gas airplane that uses one switch for the receiver and one for the ignition. Either way this will be a very attractive addition to your airplane. Comes in anodized purple, blue, black or gold.


Also available in a dual switch and fuel dot and a single switch with fuel dot: