DFC head upgrade to 500ESP

[Deet]

shorten the links more, they cam wind in further than you think

Also do you have the balls and link rods on the grips as short as they can go?

[Deet]

Originally Posted by Mike2112

Deet, do you know if the new head is lighter, or heavier than the original Align FBL head that comes in the 3G kit?

I didn't measure it, but it must be

The shaft is shorter, there is no swash lock.

The grips and arms would probably be about the same weight

the block looks shorter so probably lighter too

Only thing that might add weight would be the links

My current RTF weigh is 1.9 kgs exactly, I did post a RTF weight recently on another thread, that may give you an idea

[pmikeyg]

Just installed the new thrust bearings...still not smooth???? I guess the next step is checking the bearings in the grips. They were new grips, bearings should be good? This is turning into a project!

[Deet]

your doing something wrong

I've lost count of the number of Align heads I've built and never had any notchyness

Other brands of head yes...

I have fixed notchy heads, usually its the order the bits were fitted, or loctite getting into bearings

[2Drum]

Originally Posted by Deet

shorten the links more, they cam wind in further than you think

Also do you have the balls and link rods on the grips as short as they can go?

Again Deet, you were right on the money. I thought they were all the way in, but alas I was wrong.

Thanks again!

[PauloG]

Subscribed, thanks for putting this list together. I just wish I had read your thread before.

Thanks Deet


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[Way2evl]

Does anyone know where I can get the shorter jesus bolt and screw for the head?

[snjbird]

Originally Posted by Way2evl

Does anyone know where I can get the shorter jesus bolt and screw for the head?

+1 I'd like to know too...

[Way2evl]

Let me get this straight also. If you already have a head from an esp, all you need are the DFC kit, jesus bolt for the head and the main shaft spacer??

[Way2evl]

So I did some measuring. The jesus bolt for the main shaft is a Socket screw M2.5X19mm. I put that throught the dfc head and it looks like a M2.5X14m would get the job done. Can anyone measure their screw to confirm this? If this is correct, A Main Hobbies has it, but I'm sure you could get it anywhere. Here is a link.

http://www.amainhobbies.com/product_...-Cap-Screws-10

[hooverit]

forced auto today second time this has happend.having troulbe getting the ball links in uk so we found its the same from 600 elevator link,but you only get one in a packet so you have to buy two packs.i no thier has to be a week link somewhere i think the threaded bar could do with being a bit longer.

[Deet]

Originally Posted by Way2evl

Let me get this straight also. If you already have a head from an esp, all you need are the DFC kit, jesus bolt for the head and the main shaft spacer??

the jesus bolt comes with the kit

yes you need the spacers

you will also need the Pro grips if you have the ESP head

all you use from the ESP head is the feathering shaft, brass spacers, and thrust bearings

[krauley]

Originally Posted by hooverit

forced auto today second time this has happend.having troulbe getting the ball links in uk so we found its the same from 600 elevator link,but you only get one in a packet so you have to buy two packs.i no thier has to be a week link somewhere i think the threaded bar could do with being a bit longer.

are you saying that the ball links are coming loose from the link rod? or is that because of a crash or another problem?

[pmikeyg]

Originally Posted by Deet

your doing something wrong

I've lost count of the number of Align heads I've built and never had any notchyness

Other brands of head yes...

I have fixed notchy heads, usually its the order the bits were fitted, or loctite getting into bearings

I found a bad outter bearing on one of the blade holders. I contacted the shop I bought them from and they are sending me a new set. The inner race of the bearing was dented/dimpled.

[ragge1]

I've crashed several times with my compass head and mostly inverted but never had a bendt link / Delrin links
that didn't look good hooverit

[rdarby777]

ITS HERE!!!!
now just waiting on my sk-720

[Mateyhv]

Originally Posted by rdarby777

ITS HERE!!!!
now just waiting on my sk-720

Hmmmm, lucky guy! Just report how well both sistems match!

[krauley]

Originally Posted by rdarby777

ITS HERE!!!!
now just waiting on my sk-720

Heh first thing i thought when i saw the parts and the local was son of a gun best not be messing with my mailbox



now just waiting on ar7200bx

[Wildcards]

So I'm taking a counter IED course this week and today during our practical application they asked us what a DFC was, I had to hold my breath ( by the way, DFC stands for directional fragmentation charge )

[krauley]

Originally Posted by Wildcards

So I'm taking a counter IED course this week and today during our practical application they asked us what a DFC was, I had to hold my breath ( by the way, DFC stands for directional fragmentation charge )

That doesn't sound so fun when using it as a helicopter related term