Cox Extra 300 EP RTF Park Flyer

This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.
Low Price: $149.99
Discontinued Online
This is the Cox Extra 300 EP RTF Park Flyer. Cox is back to doing what made them famous: making modeling more fun! Today, that means offering the most advanced and complete electric airplanes possible — and the Extra 300 qualifies on both counts. Its FlightFlex™ airframe, SafeProp™ protection system and 2.4GHz radio system put it on the cutting edge of durability and dependable control. When it comes to completeness, the Extra 300 is a star. It not only comes assembled — it comes with everything you need to start flying, from "AA" batteries for the radio to a battery and charger for flight power.

It's the easy way to move up from a trainer — and a great way to start enjoying aerobatics. If you have 5 minutes, you have all you need to get the Extra 300 in the air. It’s easy…you’ll be doing loops and rolls before you know it!


  • The Extra 300: All you do is plug in the landing gear and attach the bolt-on wing, and that takes less than 5 minutes. The onboard electronics and colorful trim scheme are already in place and ready to go!
  • Spare SafeProp: Protects your prop and plane like no other prop system. Virtually unbreakable — and amazingly easy to use.
  • 7.4V 250mAh LiPo battery: Compact and ultralight. Charge it, and you've got the power for up to 10 minutes of aerobatics per charge.
  • Balancing LiPo charger and AC power supply: With a balancing charger, each cell charges to the highest possible voltage. And with the AC power supply, you can charge at home as easily as you do at the field.
  • 2.4GHz radio system with dual rates and 4 "AA" batteries: Advanced 2.4GHz technology gives the most dependable, interference-free control possible. Dual rates gives you time to get comfortable with a low-wing aerobat and advance when you're ready. And with the Extra 300, batteries are included!
Wingspan: 20 in (508 mm)
Wing Area: 62.4 in² (4.02 dm²)
Weight: 3.35 oz (94g)
Wing Loading: 7.7 oz/ft² (23.5 g/dm²)
Length: 18 in (457 mm)

This product was added to our catalog on November 18, 2011.

Jon Koenig
Friday, Feb 24 2012 (about 5 years ago)
Cox Extra 300 EP RTF Park Flyer
It flies fairly well. Its definitely not a 3D flier with the stock power setup.

Pros- The foam this thing is made out of is fantastic. You can almost fold the wings in half and it wont break, it is fairly heavy though. I also liked the unique prop saver on this bird...initially.

Cons- The motor lasted about 5 flights. The battery lasted 4 flights. The cells are fine, but the pcb board inside went bad somehow. Finding any parts for this plane will frustrate you to no end. I did eventually find a replacement motor, a Blade heli tail motor that would fit, but I long ago ripped out the guts out of the Extra and converted it to brushless. Its underpowered, so you will be at full throttle for pretty much the duration of your flight. When the motor heats up, it softens up the plastic prop adapter and it will come off mid-flight as it is only pressed on. Also the shape of the radio made my hands cramp up, very uncomfortable.

Conclusion- Save yourself the headache and buy one of the many Parkzone ultra micros. Much better parts support, cheaper batteries, and just a much better flying experience. To Cox's defense, they do not produce this plane, but they really should have found a better plane to put their name on.)
Monday, Mar 5 2012 (about 5 years ago)
Cox Extra 300 EP RTF Park Flyer
Wish I had read John's review first. Bought mine from another Hobby Store, but similar issues. I only have 3 flights on mine, so the motor and receiver are still working, but I have already had the prop adapter fly off. Also, the run time is very short. I am not even getting 5 minutes at full throttle and with the stock motor you have to be at full throttle to have any fun.

Overall the plane is great and the electronics suck. Now the question is, do I like it enough to put a real motor in it?)