I've now had a chance to see and test virtually all the EasyStar clones out there, so this post will compare them all and make recommendations. There are a few others out there by different names, but I think most are just rebadged versions of the ones below. Bottom line: I think the HobbyKing Bixler (see below) is the best option.
First, the baseline: The classic Multiplex EasyStar ($72 for basic airframe, no electronics)
Pro: Lots of cockpit room, tough, flies well.
Con: Only 3 channels, comes with terrible brushed motor that must be upgraded, rudder too small and must be enlarged. Quite expensive once you add all the stuff you need. See our post on upgrading it here.
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HobbyKing Bixler
It's available as a kit, a RTF with a 4 channel radio, and an ARF without radio. I recommend the ARF version, which is just $52. Add a 20a ESC, battery (plus battery and motor connectors), a charger, a 7ch RC radio and the APM 2 autopilot and you've got a UAV for under $500.
Some of the advantages of the Bixler, compared to the EasyStar and the other clones:
- Ailerons
- Big cockpit area, with tail servos on the outside
- Decent brushless motor
- Available in ARF form with servos installed but not a useless radio that you have to throw away
- Inexpensive
This is a comparison the Bixler cockpit (left) with the EasyStar (right). The Bixler has a bit more room.
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Dynam HawkSky ($99 with everything you need: servos, brushless motor, LiPo and charger). See our review here.
Pro: As much interior room as the EasyStar, has ailerons, comes ready to fly.
Con: Plastic motor pylon is noisy. Included FM RC system should be thrown away and replaced with proper 7+ channel digital radio.
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Xen Phoenix ($48 for airframe with brushless motor. Servos etc not included). See our review here.
Pro: Brushless motor and ailerons
Con: Fuselage is too narrow. Not enough room for autopilot electronics. Fragile. Weird four-bladed prop.
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Sky Surfer ($130 with everything you need: servos , brushless motor, LiPo and charger, 2.4 RC system)
Pro: Comes with digital RC system (only 4ch, however, so must be replaced for UAV use). Solid design w/ailerons
Con: Sadly, the design has changed and what appears in the product listing to be servos on the outside of the body, like the EasyStar and HawkSky, are now on the inside, taking up valuable interior room. Here's a picture of what the current cockpit is actually like:
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AXN Floater ($50 with servos and brushless motor). Formerly known as the Cloud Sky
Pro: Inexpensive, solid design w/ailerons
Con: servos on inside of cockpit like SkySurfer, robbing interior of valuable room for electronics. Narrow nose makes 2200 LiPo a tight fit.
Stay tuned :
This is the Official thread : http://www.virtualrobotix.com/forum/topics/multipilot-20-ap32-building