AnnihilaT
Key Veteran
Location: The Netherlands Force: The Dark Side
| Hey all,
There is a new video just posted today by Gary Goodrum from TPPacks.com with his 2nd test flight of the EP-8. Good stuff. I love the roll rate on this thing with the longer flybar. Already have one on order to do the same thing myself 
The video can be found here:
http://www.ep-8.com/videos.html
Also here is what Gary had to say about the testing today:
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I finished the video from yesterday's test flight. It was very windy yesterday, way too windy for the T-Rex and it was even blowing the Raptors around. That hampered things a bit, mainly because this was basically just the 2nd flight, the first with the longer flybar, and with the longer Swift version and the green Raptor paddles, it is very "twitchy".
The flight lasted about 6 minutes, and it used 1530 mAh, so 8 minutes should be doable. The configuration again is a Hacker A30-12XL 14-poled outrunner, a 14T pinion, a CC Phx 45 HV with the latest s/w (not the new one they are testing, just the latest on their website...) and two TP2100-4s PL T-Rex packs in series as an 8s1p-2100 setup. AUW with a lightened WattsUp is 3 lb 8.1 oz. The 100% h/s is about 2430-2450. It is using the "stock" CF 400 mm blades that used to come with these kits. It also has the stock plastic tail blades. I'm using three Futaba 3150s on the swash, with 17-18mm arms, and a 401/9650 combo on the tail.
The way it is setup now, it has +/-11 degrees of pitch. The motor does not get hot and it doesn't really bog either. To get the real "snappy" acceleration we're used to on the Raptors and the 4s-powered T-Rexes, it really needs about +/- 13 degrees, which is definitely doable with the longer main shaft. With the +/-11 degrees, however, it has very "respectable" power, about like the Swifts and Logos on 6s/7s setups. It hit a peak of 786W which translates to about 950-1000W for a 5 lb Swift of Logo 10.
Next, I plan to try some 395mm MS blades, just to see if they work any better or worse, and then a Hyperion Z-3025-12 with a 16T pinion, to see how it fairs. I have some 420 MS blades coming, along with some CF 72mm tail blades. The latter are really needed, as the tail is hard to hold with the stock plastic ones. This will require a slightly stretched configuration, with a bit longer belt, but I think the power system is definitely up to the task.
-- Gary
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Enjoy the video!
A day without sunshine is like, well, night. |
