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AlignRC Thunder Power RC
coolingfan

Veteran

Grand Junction, Colorado

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Anyone flown with these blades. Just wondering how they stack up to others. Looking to try some different blades for trex 600 pro efl .

07-14-2016 02:04 AM
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Powerdyne

Heliman

Muncie, IN - USA

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The KBDD Extreme Editions would be the ones I would highly recommend. Either in the Orange, Lime, White paint theme or the new Black and White.

The other styles (Green and white or Green and black) tend to be a bit more flexible, and a bit heavier in weight. They also feel a little slower around center stick than the Extreme Editions do.

I have flown the EE blades and compared them to the Standard Edition ones, and much prefer the more snappy response of the EEs.

I have also compared them to a set of Edge 603mm, and the set of KBDD 600mm EEs I had were 6g lighter per blade compared to the Edge.

KBDD blades tend to be a bit wider in cord, and the rounded tip profile make them feel snappy around center, but in my limited skillset; a tad more difficult to do autorotations with due to tip profile slowing them down. Head speed seems to bleed off a lot quicker for me, but that could be that I am not super proficient in autorotations at this time.

In a hover, they tend to be pretty quiet, but once you get flying, hard stops, hurricanes, and any hard cyclic movement will bark them pretty well, They do bite the air pretty hard in fast maneuvers, and they will definitely give the audible feedback to show it.

All in all, I like them for general flying, but they can be apt to fartiness if you're really hard on the sticks, They have a distinct sound when oversped too.

Here's a picture of my 600N with a set of the Green/Yellow/White standard blades. I had a pic of it with black and white ones, I'l have to find it though.

Team Compass USA, KBDD Team Pilot

07-20-2016 12:58 AM
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Powerdyne

Heliman

Muncie, IN - USA

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Sorry for the double post.

Here is a picture of the White 600mm Extreme Edition blades.

Team Compass USA, KBDD Team Pilot

07-20-2016 05:30 AM
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coolingfan

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Grand Junction, Colorado

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Thanks. I ended up buying a set of Switch Blades 603mm Premium Carbon Fiber Rotor Blade Set (Flybarless) from amainhobbies. Tracking says they will be here today. I'll try them out this weekend.

07-21-2016 02:29 PM
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icanfly

Elite Veteran

ontario

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don't want to come in here and claim a certain hard criticism of their color scheme back in May or even Aprile had anything to do with the b+w only scheme but I like to think so. Also their tip profile and old school mold re-issue to kbdd from who knows who anymore the tip profile is the old Thunder Tiger design (the kbdd blade/shape is not TT however)

On the issue of auto-ing better or worse that would be subjective to the flyers own skills, and if one were really displeased at the blades they could cut off and round, epoxy seal the kbdd (yes I said to zip most of the big 1/4 crescent end off) if one is very adept at things of that nature (not everyone knows how to make it look factory so list them fs in stock form if your not entirely happy with them). Actually the solution to their huge rearward taper design is to taper the trailing edge only in the white section of the graphic at a good angle but not 45° completely and at least 20% forward to the original tip. The swept tip has a negative effect on the ability of the blade to properly "HINGE" at the leading edge. Without going in depth into aerodynamics of stall the swept tip without power may be actually dragging the blade to lag more in auto rotations. Nasa/Naca level aero engineering would have to be imparted to make the finer details of this theory clearly understood but we don't need that with a simple reply like this.

I'd suggest going slightly longer in length to your normal helis choice then going from there, unfortunately in 550 and 600's there's no other choice.

I'm not only a designer , I'm also inventive and have studied aeronautics, blade design and foil tech now for 45 years in the many applications it came by while spending the majority of the past 3 or so years studying and experimenting much more intensely.

Little things can make a significant difference.

07-24-2016 03:02 PM
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coolingfan

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Grand Junction, Colorado

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Flew today with the switch 603mm blades. A little noisier then the align blades. Tracking was dead on. I also install a set of rail tail rotor blades 96mm. All seem well.

07-25-2016 01:37 AM
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