The laboratory has been buzzin' again

[nightflyr]

Due to the sudden loss at Castle East, things have been put on hold for the past few weeks...

But as with all things in life.... you must move on.

That being he case, the first prototype of the new tail casing has arrived in the belt drive format.

It is being fitted to the beta test ship for flight testing ( which has to be postponed due to foul weather )

This design also has a little few tricks up its sleeve that will soon be revealed.

[mhoebrec]

Looks promising

[pril250]

Why 'the sudden loss of Castle East', what happened there.

[nightflyr]

Originally Posted by pril250

Why 'the sudden loss of Castle East', what happened there.

https://www.helifreak.com/showthread.php?t=524678

[Ivor Hill]

I missed that. So sorry Richard, I know how you feel. You can't replace him but if Hercules could tell you he would now want you to give a good loving home to another dog. Take care. Ivor

[pril250]

Originally Posted by nightflyr

https://www.helifreak.com/showthread.php?t=524678

So sorry to hear and belated condolences. I know how how strong your connection was and how he will be missed. I hope that in time a new friend will join you.

[nightflyr]

Originally Posted by Ivor Hill

I missed that. So sorry Richard, I know how you feel. You can't replace him but if Hercules could tell you he would now want you to give a good loving home to another dog. Take care. Ivor

Originally Posted by pril250

So sorry to hear and belated condolences. I know how how strong your connection was and how he will be missed. I hope that in time a new friend will join you.

Thank you gentlemen..

[pril250]

I believe your next friend is already waiting for you in the county's rescue pen.

[nightflyr]

Well the first test hop of the new boom block upgrade has been good.
Now heading out to the field to give it a proper spankin'

CNC Effects Boom Block (4 min 28 sec)

[pril250]

Is the balance and C of G ok on this setup?

[nightflyr]

Yes.. but the winds were being a bit of a challenge

[pril250]

I see, it has been pretty much the same over here, not ideal for a project maiden.

[Stumblebee]

Night, I don't know what it is but every video you have ever posted has been against the back drop of a perfectly manicured lawn. This lawn never has crab grass or dandelions. There are never any leaves and the shrubbery and trees are always perfectly trimmed. In the meantime, you manage to work and spend who knows how many hours building aircraft like the world has never seen. How do you do it?

[nightflyr]

Trust me all is not cream and sugar...
Weeds.. OMG we've been battling them for weeks.. and only now getting a little head way.
As to the trees and bushes, that was a 2 weekend project last month.

BTW this to be the final design for the new boom block.....
Setup for a separate tail drive...

[R_Lefebvre]

That's an interesting... but unusual setup for a separate tail drive. What's the impetus behind it?

[nightflyr]

To drive a 1000 class stretch tail with a HS running around 7 - 800 rpm

[aramb]

Originally Posted by nightflyr

To drive a 1000 class stretch tail with a HS running around 7 - 800 rpm

Richard, why a separate motor versus gearing a torque tube appropriately for that headspeed?

[runesb]

With a motordrive to the tail, its easier to keep up the tail speed when going so low on the hs, and you wont be needing to go bigger tailblades.

[nightflyr]

Originally Posted by aramb

Richard, why a separate motor versus gearing a torque tube appropriately for that headspeed?

1) There are limited gearing options.
2) Allows for a constant tail.
3) Allows for the use of conventional size tail blades.
4) Load reduction of the main motor.

[R_Lefebvre]

Ok, so, many of the typical reasons to go with a DD tail. Then why not just put the motor right at the back as well? Are you planning aerobatics with this thing? Making the tail true direct-drive really simplifies things.