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Archive for the ‘Technology’ Category

GoPro HD Heli Cam

January 25th, 2010 No comments

Alot of us like to take videos of helicopters from the ground perspective, however, there are alot of us who want to do it from the sky. We have talked about alot of the systems out there here on the site but this camera is spectacular at capturing video in 60p as well as a very wide angle lens. I am really impressed how good this video looks. At $259.00 this thing is a great bargain. We are going to pick one up and do a full review on it. Check out the video.

GoPro-HD

www.goprocamera.com

Align 3G Flybarless

January 19th, 2010 No comments

I recently received my pre-production sample of the Flybarless system from Align. Even though I am not a big fan of flybarless systems, this unit looks awesome. It is very small and it comes with everything you need to convert your heli to flybarless, including the complete flybarless head assembly as well as the flybarless unit itself. I will be shooting video soon, mainly focusing on showing the unit along with some setup tips.
I have been told it will be available in the next few weeks. Align is releasing a unit for the T-Rex 500, 600 and 700. T-Rex 250 and 450 units will be released in the future.

www.bertrc.com

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Trex 600 6s-8s Scorpion 890KV Modification

October 14th, 2009 3 comments

Scorpion HK-4025 890kv - BoxI recently burnt out my Align 650L 1220KV motor on my Trex 600 and decided it was time for an upgrade (as a side note the 650L was a pretty good motor as far as Align goes it lasted over a year). One of my main goals was to allow me to initially continue to use my current configuration of 6s batteries and 100A Align speed controller. But at the same time allowing myself an upgrade path to an 8s setup once my current set of 6s batteries die (that also implies an upgrade to a high voltage speed controller).

 

Scorpion HK4025-890KVScorpion HK-4025 890kv

I finally decided on a motor, the Scorpion HK4025-890KV, which actually comes in slightly cheaper and lighter than a replacement 650L 1220KV with similar power consumption. The one main difference however is the KV rating, a difference if 330KV. The way to compensate for the lower KV was to use a larger pinion, as it turns out Mikado do a 20t pinion which fits a 5mm output shaft, which addresses the problem nicely (on the 650L 1220KV I was using a 15t pinion)

Mikado 20t Pinion

The Scorpion motor whilst shorter in length than the Align 650L is slightly wider, and the 650L was a very tight fit, hence a simple frame modification is required to get this badboy in. A small section of carbon just below the motor mount needs to be removed on both sides of the frame, nothing a couple of minutes of dremeling wont fix :)

Before Frame modificationTrex 600 Frame Mod

After Frame modificationTrex 600 Frame Mod

Once the frame has been modified the motor slides sideways into the frame easily, the next thing you will notice is the Mikado 20t pinion is so big it doesn’t clear the main gear (and if you took the main gear off it’s likely to be too tight or not fit at all).
Another small modification is needed, this time to the Align motor mount, again very simple, all that is required is the bolt holes need to be enlarged lengthwise towards the front of the model which can be done with a drill and 4mm bit. You don’t need much, I drilled one hole at the end of each bolt hole to enlarge it, which allows the motor to slide forward more on the mounting bolts.

Align motor mount after modificationTrex 600 Motor Mount Modification

Installed Mikado 20t pinion and modified Align motor mountMikado 20t Pinion Installed

All things considered this modification was very easy and other than the Mikado 20t pinion no other non Align parts are required. No one likes modifying frames but this was truely very quick and simple with the dremel and doesn’t compromise the frame at all in my opinion. Also as it turns out I came up 70g lighter which is always a bonus.

Scorpion 890kv Modification Complete

Flight testing on 6s with the Align 100A speed controller went very well, I don’t think I’ve gained or lost any flight time I’m still at 4mins hard 3D. The motor seems have good torque and be very resilient to bogging, the ESC and motor temperatures are also healthy. Overall performance with my setup is slightly above the 650L (…and I had good results with the 650L). Obviously with any 6s setup when flown aggressively will push the batteries limits in terms of heat, current draw and performance which is why in the future I will be moving towards 8s, which the Scorpion HK-4025 890kv should handle nicely.

JR 11X Zero Radio TX

October 9th, 2009 No comments

JR 11X Zero Spec (via google translate)
Pre-release spy shots and video

JR 11x Radio

JR 11x Radio

JR 11x Radio

JR 11x Radio

JR 11x Radio

Solid-G Gyro Discontinued

August 20th, 2009 No comments

CY Solid-G

We have just received notification from Curtis Youngblood Enterprises they have elected to discontinue the Solid G gyro. This is not due to any issue or defect in the Solid G but instead because the Mini-G popularity has shown to be much higher then expected. Originally CYE designed the Mini-G for 50 nitro size helis and smaller. However once they started testing the new gyro they discovered it works extremely well on any size machine including 90 size nitro and electric helis. For this reason, and the small footprint, the Mini-G once released became the most popular gyro from CYE.

If you own a Solid-G today, not to fret. CYE will continue to honor the manufacture warranty on the unit. They are also going to keep some units in stock to fill warranty replacements. Once that stock pile is exhausted they will use Mini-G as the warranty replacement.

http://www.rcheliresource.com