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Century Helicopter . MTA Hobbies . MRC/Altech Marketing USA

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Audacity Models Pantera 50 - Tiger 50 > BBC update
 
 
jbeech
rrAdvertiser
Location: Sanford, FL (Orlando area)

We had an issue in manufacturing the clutch hubs and are re-making them now and expect to complete them next week at which point we'll enter final QC and packaging stage, so when I say not much longer I really mean not much longer.

61 - an awful lot of folks have an OS 61SX-HWC laying around in a drawer gathering dust from back in the day. I've seen them trade hands for 35 bucks, and this included the muffler!

In fact, the power of a 61SX is both a little higher than a Hyper, and more importantly, it makes a fair bit more torque. Rememeber, torque is what keeps blades moving, not horsepower. Hence, I disagree a 53 Redline is a better choice because even if you only consider the money issue, i.e. the cost of the conversion kit, you're still more than a hundred bucks to the good because the used engines are to be had for next to free. This and if you have the engine you proably also have the muffler! Furthermore, for most folks flying around and doing some aerobatics, the little bit of extra weight simply won't matter especially since the 61SX is hands down higher quality, easier to tune, and makes more torque. As a consequence, a fellow could build up a Pantera very inexpensively if he uses a 61SX that otherwise is of no use to him, understand?

He ends up with a model that weighs a little bit more but is super reliable, far smoother, and easier to tune, which is very improtant to most folks. In my opinion, the OS61SX is a superb piece of machinery and I am pleased to give it new life in a Pantera.

70 - this may be an even better choice because once again, there's no substitute for cubic inches and phhysically it's the exact same size.

91 - this is sick . . . very, very sick. However, even sport flyers who try their hand at our prototype love it. And it's not just because they can do climbing tick-tocks, but because it's simply exhilerating to fly!

With any of the BBC engines shoehorned in a Pantera climbs like a rocket. And many pilots can do things with her he can't otherwise do with a normal 50-powered helicopter. Hence, for the highly practiced pilots reading this, please remember, not everybody has the time to go fly a lot. Stuffing a big block into a Pantera results in one heck of a lot of fun, especially in the hands of a weekend pilot.


John Beech - GM (and janitor)
Audacity Models
04-15-2008 04:18 PM
 
 
MartyH
Veteran
Location: Lawrenceburg, Indiana

In regards to the OS61 BBC, I agree, for people that have them on hand it's a great way to breath new life in an engine otherwise stuck in the drawer though they look like they still do pretty well in the Raptor 60 as well. I'll let you know on that one because my latest purchase is a Raptor 60 coming with an OS61. I do have an OS70 to put in it if it turns out the 61 is worn.
Anyway, the OS61 is an awesome engine. It is well made, durable, predictible, etc. The only problem with this engine is parts. It has long been discontinued and you cant buy the cylinder liner so it'll be good for you until you have a lean run then you are screwed. Thats why I suggest you stay with a 50 class engine unless you want at least the 70. If you want to do the BBC, the OS70 would be a great choice. The OS91 would work too though I do wonder about someone trying to use a 91 in a Pantera at sealevel. Thats an aweful lot of power for a 620mm blade, short tail machine. Just be careful and have fun!

Marty,
6 Raptors, Hawk Pro
EVO 50, Knight 3D
2 Audacity Panteras & Tiger 50
04-16-2008 12:38 PM
HOMEPAGE  
 
 
billm
Key Veteran
Location: Liberty Lake, WA

Marty, Did the teardown tonight. Yup loose nut on the main shaft. I am going to wait for a few days before I submit the parts to the shop. Worried about the run out and other things.
Nice to know that JB is just a few weeks out with the real deal.
When the BBC mode was working the fight was awsome before the nut came loose.

My name is Billm. Cough, and I'm a Heli Holic
04-18-2008 03:42 AM
 
 
jbeech
rrAdvertiser
Location: Sanford, FL (Orlando area)

I hope to receive parts in another week, or two. We're about to finish manufacturing of stage 1 parts and are making molds for stage two gear, which will be another week though that won't slow down release of stage 1 bits. Anyway, then we go into QC, which I tend to never rush. Final step is cleaning and packaging. Thus, not much longer I hope.


John Beech - GM (and janitor)
Audacity Models
04-18-2008 02:48 PM
 
 
billm
Key Veteran
Location: Liberty Lake, WA

Got my BBC flying today with the snow falling. Yup mid April and the snow is still here. Thanks Marty for the info. He found a socket that fits the nut and does not require machining the sucker. My BBC is a kludge but it is flying. Punch outs using a set of SWE blades are awsome. Can not wait for the real BBC mod.

My name is Billm. Cough, and I'm a Heli Holic
04-21-2008 03:19 AM
 
 
billm
Key Veteran
Location: Liberty Lake, WA

Got off work early and had the BBC ready to fly today.
She has the MultiGov installed and WOW.
Still running rich on the settings but she tried to get on the pipe a few times with great results....Then the snow started to fall.
It's April for crying out loud.

My name is Billm. Cough, and I'm a Heli Holic
04-25-2008 03:25 AM
 
 
tim tompkins
Senior Heliman
Location: Boston, Georgia sw Ga. Thomas County

Must be global cooling. TimT
04-25-2008 03:27 AM
 
 
billm
Key Veteran
Location: Liberty Lake, WA

Tim, LOL! I'm not sure but it could be all the rotor heads spining the vortex around. I tried to fly at lunch today and it started to snow again today.

My name is Billm. Cough, and I'm a Heli Holic
04-26-2008 03:40 AM
 
 
billm
Key Veteran
Location: Liberty Lake, WA

Flew the BBC today. I first flew the Pantera and it was getting tossed around a bit with the 15MPH winds. The BBC flew like a 90 in the wind. I was able to hover rock solid and FFF was on rails.
The MultiGov worked per the book on the BBC.

My name is Billm. Cough, and I'm a Heli Holic
04-28-2008 01:07 AM
 
 
billm
Key Veteran
Location: Liberty Lake, WA

Just did some tweeking of the BBC home brew tonight.
Yup it snowed on me again.
She is flying like a champ.
Hey John. Ya got anything ready for shipment of the real BBC?
I have a fun fly this May and would like to show off the real deal.

My name is Billm. Cough, and I'm a Heli Holic
05-02-2008 03:42 AM
 
 
billm
Key Veteran
Location: Liberty Lake, WA

YEEEEEE HAAAA!
The BBC motor has been broken in and the ship is like a rock.
She is awsome in the wind. Rock solid. Collective managment is the key with the BBC. With the MultiGov singing she flips and rolls like a champ. The SWE blades are working great with this high power combo.
I had a fellow shoot some vids and hope to have them soon.
I have a fun fly comming up in two weeks and hope "if JB lets me fly it"

My name is Billm. Cough, and I'm a Heli Holic
05-05-2008 01:31 AM
 
 
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Audacity Models Pantera 50 - Tiger 50 > BBC update
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