Low Headspeed

[jcflyer]

Anyone here ever run their Diabolo at low headspeed with 700 size blades? If so what was your set up? I have Rail 716 mains and I am thinking about running at low headspeed just to do something different, 16T pinion 4525-520 Jive 120 HV.

[Raptorapture]

Originally Posted by jcflyer

Anyone here ever run their Diabolo at low headspeed with 700 size blades? If so what was your set up? I have Rail 716 mains and I am thinking about running at low headspeed just to do something different, 16T pinion 4525-520 Jive 120 HV.

I think plankdriver ran his Diabolo 700 at 1000 rpm. There was a video of it.

[michalp]

try it, but there are better helis for low rpm in my opinion...

i personally don't like headspeeds below 1600 on the diabolo

[trillian]

The Triabolo is great at about 1375 but it's not really a direct comparison because of the three blades.

[F1 Rocket]

Originally Posted by jcflyer

Anyone here ever run their Diabolo at low headspeed with 700 size blades? If so what was your set up? I have Rail 716 mains and I am thinking about running at low headspeed just to do something different, 16T pinion 4525-520 Jive 120 HV.

Just put a single 6s pack in it, turn your tail gain to 100% and go have fun. No other changes needed.

[Luvmyhelis]

Originally Posted by F1 Rocket

Just put a single 6s pack in it, turn your tail gain to 100% and go have fun. No other changes needed.

This is pretty much the same advice I got when running my Tri800 on a single pack earlier. Man, all I can say is cyclic management is def needed when doing this. My biggest issue was tail authority. I ended up adding in an RcTek tri rotor tail. Which handles anything still using smaller blades.

[Magneto]

Originally Posted by jcflyer

Anyone here ever run their Diabolo at low headspeed with 700 size blades? If so what was your set up? I have Rail 716 mains and I am thinking about running at low headspeed just to do something different, 16T pinion 4525-520 Jive 120 HV.

Jay 1750 is a blast and flight times increase significantly! With your setup and the 16t pinion will be perfect for the Jive at that HS

[jcflyer]

Joe,
Been flying at 1750 for a while want to go lower...

[jcflyer]

Danny,
I might just try that...

[Luvmyhelis]

Originally Posted by jcflyer

Danny,
I might just try that...

Danny is the one who talked me into trying it on my Tri and deserves all the credit for my own experience.
I did have to go back in and change my gov settings with my Skookum and also program my Yge to run on 7s instead of 14 in my case. I also played with my Jeti and ran the throttle at 100% without any gov.

[plankdriver]

Essentially did what F1 Rocket descrived, used a 6S pack in a 12S setup for 2000rpm, so it yields 1000rpm.
Is fun like walking on eggshells, for over 10minutes.

2012-10-13_1000rpm Diabolo Santiago (8 min 42 sec)

Santiago's Diabolo on 6s (8 min 39 sec)

Santiago

[jcflyer]

Thanks Santiago that is pretty cool...

[DT75]

Originally Posted by jcflyer

Anyone here ever run their Diabolo at low headspeed with 700 size blades? If so what was your set up? I have Rail 716 mains and I am thinking about running at low headspeed just to do something different, 16T pinion 4525-520 Jive 120 HV.

I have the exact setup you describe, except I use the NHP 742's.

"Non calibrated" Jive gives me headspeeds from 1350 - 1700 rpm.
Flat 35, 45, 55, 65% throttle.

I've also bolted on Rotor Tech 720mm "SG" F3C blades, they are also not as wide as the NHP's, and I really had to "catch" the heli with the collective at 1350 HS, when flipping inverted.
Not an issue with the NHP's.

I mostly fly in ID1 / 45% th.

[jcflyer]

Originally Posted by DT75

I have the exact setup you describe, except I use the NHP 742's.

"Non calibrated" Jive gives me headspeeds from 1350 - 1700 rpm.
Flat 35, 45, 55, 65% throttle.

I've also bolted on Rotor Tech 720mm "SG" F3C blades, they are also not as wide as the NHP's, and I really had to "catch" the heli with the collective at 1350 HS, when flipping inverted.
Not an issue with the NHP's.

I mostly fly in ID1 / 45% th.

Cool thanks for the info, I had the 742's at one time but crashed and have not ordered anymore...

[Seasick78]

Originally Posted by jcflyer

Cool thanks for the info, I had the 742's at one time but crashed and have not ordered anymore...

I've got a set I'm not in need of anymore.

[jcflyer]

Made the first few flight the other day with lower headspeed, 1578, 1748, and 1784. I need to adjust my TC some to lower them all a bit, collective management is more crucial so taking it easy for now. I did get over 10 minutes flight time at 1578!!!