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Gyro Hobbies . E-flite . Next D

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Century Hawk - Falcon - Raven - Predator > NEW! Hawk Pro
 
 
rcsoar4fun
Veteran
Location: Corpus Christi, TX

Anyone looked at sticking some 600's and a 50 in it? I can see how Century would not want to steal from the Falcon/Raven series, but a Hawk pro 50 would be too good to pass up.

Kristopher
04-24-2005 Over year old.
HOMEPAGE  
 
 
oldfart
Elite Veteran
Location: Vancouver, Canada

I would not consider it without changing to the 6mm spindle, rotor head thrust bearings, triple bearinged tail rotor and the metal head hub from the Falcon/Raven series. The 4mm flybar is a big plus also. Not to mention the longer boom.

When stepping from a 32 to the new OS Hyper 50, one is stepping into a lot more power that will have to be harnessed properly and safely. This means a lot higher forces to deal with, consequently a number of components would have to be changed in order to safely do so.

By the time you add the cost of these components to the price of the Hawk Pro you would be well in the price park of the Raven 50.

Phil
04-24-2005 Over year old.
 
 
NewHeli
Key Veteran
Location: State College, Pennsylvania, USA

Any chance that the metal head block fits the Hawk Sport?

NewHeli

Nathaniel Rice
Team Empire Hobbies
Team Miniature Aircraft USA
04-24-2005 Over year old.
 
 
perfesser zero
Key Veteran
Location: Dublin, VA., USA

Metal head block...

NewHeli,
Yes it does and it looks "Marvelous". PN HI3160D. It's a bit spendy, but looks nice and should last forever. However you need PN HI3167G to go with it. The tie bar and associated parts are different than the regular head parts for the fly bar. You will also need the two 3X7mm CNBB0730 ball bearings. That's another $26.00 added to the $25.50 for the head and guide pin bracket. Also the head button is different and that's another $10.00.

One thing I have noticed in all this is that the 3X7mm ball bearings are used in allot of the assemblies in this heli. Do yourself a favor and just buy an extra ball bearing upgrade kit and be done with it. That's if you need any extras you've got them and haven't paid allot extra for them. Two 3X7mm ball bearings will cost right at $14.00 without shipping. 12 in the ball bearing upgrade kit will cost $23.00. Another thing you might consider in the future is going to a 4mm flybar, which needs different bearings and flybar arms, paddles and such.

Later...

Tiger 50 - OS 50SX-H
Hawk Sport - OS 37SZ-H
Raptor 30 - OS 37SZ-H
JR 10X/R950S
04-24-2005 Over year old.
HOMEPAGE  
 
 
AGRAV8
rrProfessor
Location: Mosquito Coast......Houston Texas

Testing

Well, I have a problem. It is probably one that LOTS of folks WISH they had.

Just got in from some flying. Toki is running its ass OFF ! 13 degrees positive on WOODIES and it overspeeds them. Imagine the surprise when I had 10 degrees set up off the bench

GOT to rethink my pitch curves on pos/negative. More work in the dungeon for me. A real shame, isn't it !

Oh, and the motor temps are LOW still.
04-25-2005 Over year old.
 
 
NewHeli
Key Veteran
Location: State College, Pennsylvania, USA

You must NOT have an antirotation bracket on yours, because it doesn't allow for that much pitch.

Still, that's insane! Are u sure ur pitch gauge is accurate? (Which one do u have?)

NewHeli

Nathaniel Rice
Team Empire Hobbies
Team Miniature Aircraft USA
04-25-2005 Over year old.
 
 
AGRAV8
rrProfessor
Location: Mosquito Coast......Houston Texas

Oh, yes I do.......

installed the anti-rotation bracket yesterday.

Vario pitch guage used today at the field, I will verify it with my JR guage tonight.

Had several experienced heli pilots look at it as well in dis-belief. With the pitch gage.

It is almost there. Maybe 1/2 degree more will get a grip on it. If I were not trying to keep it stock (except for the anti-rotation guide) I would strap some 600's on an see just whats up !

Tail is locked in tight as well. Still got some tweaking to do, but so far......
04-25-2005 Over year old.
 
 
Scooterpilot
Key Veteran
Location: Southern, California

MISC

Great infromation about the Pro.

Everyone, thanks for the post, pics etc.

Will it be ready for shipment this week? Inquiring minds would like to know?????????

Regards

Two N-9's,600N, MagnumFuel Rep, YS Rep
04-25-2005 Over year old.
 
 
DMehalko(DM)
Senior Heliman
Location: Colorado

Suposedly they're shipping them tomorrow......

I will be ordering one this week for sure, just stumped on the engine i want

Trex450se, Trex600CF, HyperRaptor 90 3d
04-25-2005 Over year old.
 
 
NewHeli
Key Veteran
Location: State College, Pennsylvania, USA

A modified bracket? Even if u can get 13 degrees pitch, then u can't give it forward cyclic...

NewHeli

Nathaniel Rice
Team Empire Hobbies
Team Miniature Aircraft USA
04-25-2005 Over year old.
 
 
AGRAV8
rrProfessor
Location: Mosquito Coast......Houston Texas

Supposeded NOTHIN.......

I have it from reliable sources that they hit the streets on Monday.

Matter of fact, I'll wager anyone that wants some of this action $50 that kits start leaving on Monday.

Ya want to cover that bet, guys??

(C'mon.....Daddy needs a new pair of SHOES )

James
04-25-2005 Over year old.
 
 
HeliNick
Senior Heliman
Location: Bay Area, CA

Corey,

How long is your flying time with the Toki 40 on the Hawk Pro?


Nick
04-25-2005 Over year old.
 
 
perfesser zero
Key Veteran
Location: Dublin, VA., USA

600mm blades...

AGRAV8

Yeah but can you go that far and not have to extend the tail boom? You also might have to flatten the power curve to keep the overspeeding down. How touchy is this thing with the Toki 40? Is anyone in the bunch that are testing it using the OS .37? Or is there a bunch? Could this engine be to much for this little beast? Since this release is still using the 5mm feathering shaft could we see a need to go straight to the 6mm shaft for safetys sake? Maybe even the metal head?

Later...

Tiger 50 - OS 50SX-H
Hawk Sport - OS 37SZ-H
Raptor 30 - OS 37SZ-H
JR 10X/R950S
04-25-2005 Over year old.
HOMEPAGE  
 
 
AGRAV8
rrProfessor
Location: Mosquito Coast......Houston Texas

600's

I would put a longer boom on it. Also note that a set of carbons might NOT have that much pitch in them to keep the engine loaded.

It is a matter of harnessing the power it puts out. No, I don't know of any "bunch" of testors with it, just Corey and myself. I will find a machine with a 37 in it at Mayday, and stack them up toe to toe.

I'm not worried about a 6mm axle or metal head. The engine seems to want to pull great, and now I need to figure it out WITHOUT using a governor.

I would HATE to have to get the throttle curve pulled down from 100%. Wouldn't you???

Touchy?? In what respect? It does take throttle well, and the needle settings have been pretty generous considering. Right now I am probably at 4.25 turns out on the high needle, and have opened up the low end just a smidge (maybe a 1/4 turn).
04-25-2005 Over year old.
 
 
DMehalko(DM)
Senior Heliman
Location: Colorado

So do you think it is overpowered with the .40?

Are there any cons to overspeeding?

Trex450se, Trex600CF, HyperRaptor 90 3d
04-25-2005 Over year old.
 
 
AGRAV8
rrProfessor
Location: Mosquito Coast......Houston Texas

No....

but those wood 550's are NOT a challenge to it, that much is for sure. Might look at some 570mm carbons. Note that the intent of this machine is to see how it can perform out of the box (again, note I added the antirotation guide upgrade) and I have not added a header tank to it on purpose. So far, no lean out issues when the tank gets low, but note that the carb is above the top of the tank already.

One reason I am glad to see this power is that I will be adding a rotopod to it to simulate beginner training. The extra weight might be just right, we'll see. The rotopod testing will be this week sometime.
04-25-2005 Over year old.
 
 
NewHeli
Key Veteran
Location: State College, Pennsylvania, USA

I'd like to see some pictures of your bracket...to believe it

NewHeli

Nathaniel Rice
Team Empire Hobbies
Team Miniature Aircraft USA
04-25-2005 Over year old.
 
 
oldfart
Elite Veteran
Location: Vancouver, Canada

James,

I believe NEWHELI is making a good point. Unless they have very recently changed the design of the anti rotation bracket (e.g made them longer), then installed as per the instructions that come with them, you will have a relatively limited collective/cyclic pitch range - one more suited training with a standard 32 type engine then for 3D, specially with a higher powered engine.

I have found on my Ravens and Falcons that if one wanted a +10/-10 of collective pitch range with 7 degrees additional for cyclic or +11/-11 of collective and 6 degrees of cyclic, one would have to raise the verticle slotted part of the bracket. Otherwise when at full collective and full forward (back in the Raven) cyclic the pin would bind at the top, forcing the swashplate down and removing collective. This can make for some really weird responses through some flipping maneuvers etc.

Without changing the verticle location of the slotted piece the only alternative is to limit either the amount of full collective or full cyclic pitch.

If one does not want to sacrifice any of either, then the simple solution is to mount the verticle slotted piece higher on its frame. The slot is long enough to accomodate more pitch range, it is just that in its' stock configuration it sits too low.

To raise it, all one has to do is mount it with the bolt through the upper hole instead of the middle hole. This will mean the lower "dimple key" will then key into the middle hole and the upper "dimple key" will be above the frame and not be keying into anything. The bolt and the lower dimple key are more then enough to secure it vertically. Now the slot has been moved up enough to allow a much greater pitch range.

I covered this here on RR and in other forums a number of times a few years ago.

IMHO, the instructions of the units that are sold seperately as upgrades and the ones that are provided as stock with the Ravens should be rewritten to show the mounting this way.

Phil
04-25-2005 Over year old.
 
 
wedge
Elite Veteran
Location: Victoria BC, Canada

Speaking of antirotation brackets, I have one I am not using, its a purple one off my Hawk Sport when I converted it to Raven, if anyone is interested with all the new pros comming out now, good cheap upgrade.

Let me know

Victoria BC, Canada, Century Swift,Trex SA 450, Hummingbird V3.
04-25-2005 Over year old.
 
 
AGRAV8
rrProfessor
Location: Mosquito Coast......Houston Texas

Agreed

When I reached the effective limit of the anti-rotation bracket for pitch/cyclic, then I began increasing the length of the pushrods to find a pitch setting that would provide the maximum loading the engine would take. In doing this, my pitch curve is no longer symmetrical, nor do I have 0 degrees at mid stick.

Simply for testing purposes. I may put on a set of 555 MAH carbons to see how they stack up against the toki. I also have a set of 600 Rotortechs I can borrow from my Raven 50 to try, but I think they WILL be in conflict with the tail disk using the stock boom.

One other idea: This mechanics set (with the metal lowers) and the Toki might be the ticket for scale fuselage operations. CopterDoctor has used 30's in 50 class bodies before.....hmmmmmm wonder if they have any pre-painted 50 size 222's that catch my eye over in California???
04-25-2005 Over year old.
 
 
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