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AlignRC Thunder Power RC
knightofcarnage

Elite Veteran

chicago

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07-15-2016 03:55 AM
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pitfall

Senior Heliman

england

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will it be a new heli or an upgrade, they have already started to change the 700

07-16-2016 04:44 PM
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knightofcarnage

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chicago

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just like the 700 , its a head upgrade and tail upgarde kit.

07-16-2016 04:51 PM
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knightofcarnage

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chicago

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07-18-2016 04:02 PM
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ticedoff8

Key Veteran

Morgan Hill, CA. USA

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I bought this for my 600E Pro DFC and/or my 600 nitro DFC Pro.

It is not a drop in replacement for the 600 head on either one.
I am still figuring it out

It fits better on the 600E Pro - mainly because the 600 nitro has the Custom Heli Products (CHP) 600N-DL conversion. The CHP 600N-DL conversion uses the old style anti-torque guide rather than the newer A-arm and the top of the anti-torque guide comes within 1mm of hitting the bottom of the blade grips
If I raise the head, it is not a problem.

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09-13-2016 08:42 PM
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getsuyoubi

Heliman

Queens, NY - USA

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Have you flown it yet?
I'm wondering whether this would be suitable for scale models with their low head speeds. Can you comment on that?

09-15-2016 01:33 PM
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ticedoff8

Key Veteran

Morgan Hill, CA. USA

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I flew it, and it is nice at 1800 RPM headspeed.

I was having unrelated issues with tuning the governor, so I didn't get a chance to wring it out "at speed".

The head ships with DFC head dampers (hard, black, plastic). But, you may be able to see that the spindles are mounted so they can flap and the head block is machined such that the spindles can flap a lot.
I suspect, you could use softer dampers and a much lower headspeed.
But, that is just my opinion and I do not plan to test anything lower than 1800 RPM

I was flying at 2100 RPM with the 2 blade head and I think that is my starting point for the 3 blade head.

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09-19-2016 05:03 PM
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getsuyoubi

Heliman

Queens, NY - USA

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Thanks, that's very useful information.
Just one more question: What's the distance from the Jesus bolt to the blade grips - in other words, how high does this head build on a given main haft?

09-19-2016 05:57 PM
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ticedoff8

Key Veteran

Morgan Hill, CA. USA

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I did not measure it.
I would have to disassemble it to take measurements.
I'd rather fly it right now.

The head ships with a 550 DFC main mast.

You can see (in the pictures) that the head block has 2 jesus bolt holes.
And, the 550 DFC main mast has 2 jesus bolt holes.

When the head is fully seated on the 550 main mast, all the jesus bolt holes line up within 1mm and the bolts slide in.

I used the Align Trex 600 nitro main mast.
This has 1 jesus bolt hole.
I lined up the lowest jesus bolt hole on the head block with the existing hole on the 600N DFC main mast.
This was the best fit in terms of swash height, clearance and almost "drop in" head replacement.
But, at that point, the head was not fully seated by a long shot.
I estimate that if the mast was about 10mm longer on top, it would be a better fit.

If I lined up the upper jesus bolt hole on the head block with the existing jesus bolt hole on the main mast, the head was almost fully seated, but the main grips were too low and would scrape the swash anti-torque guide and the swash links would have had to be replaced with 10mm shorter links.

After I lined up the lower jesus bolt hole in the head black with the existing hole in the 600N DFC main mast, I marked the upper the location on the main mast where the upper jesus bolt hole was, and drilled the main mast to match.
The two new holes are about 5mm below the top of the main mast.

We will see if it hold up.

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09-19-2016 06:22 PM
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getsuyoubi

Heliman

Queens, NY - USA

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There's no need to disassemble anything for the measurement I'd like to get. All I need is the distance from the upper Jesus bolt to the center of the blade grips (the main rotor plane, so to speak). Doesn't have to be very precise; within a few millimeters is good enough for my purpose.
Can you please do that for me?

Thanks a lot!

11-22-2016 10:55 PM
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