Roban Airwolf 800 build

[Keyrigger]

The only part in a swash plate that rotates in the ball bearing between the part that the servos move and the part that the ball sits in. The swash plate will work either direction that the main blades rotate. If what your friend said is true, have him point out left hand and right hand rotating swash plates to you so that we can all learn from that but I seriously doubt his information has any merit. Blades are a different story. Those can be right hand rotation, left hand rotation, or symmetrical which can rotate either direction. Take care.

Don

[keong]

I do think that too.. Cos i flew about 3 mins and havent got any issue
Blade yes.. hope can get some feedback for those getting a roban model and thinking to get the swash upgrade to trex700 swash

[mastrg]

Latest progress: I have installed landing lights, navigation lights. Went to Radio Shack for 3mm led lights, total waste of time. They need to change their to something like phone shack. But thanks to the F and F fads found plenty of accent lights in a parts store marked down for clearance. Amazing how many things have to be modified to put this bird together, misdrilled holes, tail section needs to be reinforced with cf, as it is a tail first is going to crack the joint for sure. Back to work to finance this hobby.Hi ho hi ho Gary

[mastrg]

Can anybody identify these two pieces on airwolf fuselage. They look like they attach to the tail stabilizers but the predrilled holes don't line up.
Also trying to pitch, I got -1 to -2 low stick, I go to center I get almost 3, at full I at 12-13 what am I missing. Also threw some landing skids so I could mount to my stand easier. Gary

[treotraveler]

Originally Posted by mastrg

Can anybody identify these two pieces on airwolf fuselage. They look like they attach to the tail stabilizers but the predrilled holes don't line up.Attachment 506736
Also trying to pitch, I got -1 to -2 low stick, I go to center I get almost 3, at full I at 12-13 what am I missing. Also threw some landing skids so I could mount to my stand easierAttachment 506737. Gary

The plastic gizmos are fixed trim tabs that go on the leading edge of the horizontal stabilizers. The pins and holes line up on mine.

You are using micro beast, correct? Set the MB up per instructions, swash mixing is done in the MB. Swash in TX set to 1 servo normal, level your swash, zero pitch at mid stick, blue light at +6, correct servo direction, test for correct swash correction on tilt, etc....

After you set the beast up, adjust your pitch curve in the TX. I go for -3 to -5 at low stick, +5 at mid stick and +8 to +10 at high stick on my scalers. I'm sure others will chime in on what pitch they use.

Third and fourth pics are left and right side horizontal stabs of real Airwolf on how it's suppose to look with the trim tabs installed....

[mastrg]

I appreciate that info Treotraveler . I will check into pitch curve of my radio. My new one should be here soon. Thanks Gary

[keong]

Originally Posted by mastrg

Can anybody identify these two pieces on airwolf fuselage. They look like they attach to the tail stabilizers but the predrilled holes don't line up.Attachment 506736
Also trying to pitch, I got -1 to -2 low stick, I go to center I get almost 3, at full I at 12-13 what am I missing. Also threw some landing skids so I could mount to my stand easierAttachment 506737. Gary

since its a CCW rotation heli, it should be low stick +4, mid stick -2 , high at -9 to -10

if you are getting a +12, can it fly up ?

my Bell 429 set at Low 4 deg Mid -2 High -10

[treotraveler]

Originally Posted by keong

since its a CCW rotation heli, it should be low stick +4, mid stick -2 , high at -9 to -10

if you are getting a +12, can it fly up ?

my Bell 429 set at Low 4 deg Mid -2 High -10

It does not matter if the head is CW or CCW rotation. Those numbers you posted are for the grip links being backwards and on the trailing edge of the blade. Rotate the grips around so the links are on the leading edge of the blade. You would have positive pitch at mid stick and high stick. Negative pitch at low stick.

Your 429 manual says on page 13 to set up a linear collective pitch from -2 or -3 to +9 or +10....
.

[mastrg]

I figured it out, I had not configured my pitch and throttle curves. Not ready to spool it up, because I need to balance the blades. They are really off from each other, when I spun it up at 1/4 voltage there was a lot of vibration. What I am looking for are 2 of the lighting kits that came with this heli, not so much the controller and lights. Just need 2 more of the clear globes used on the tail fin, tried Aerodyne but did not get anywhere.
I found some lights at an auto parts store, to use for spotlights, extremely bright trying to decide how I want mount them.. Well back to waiting for FedEx and the postman. Cheers Gary

[keong]

u can check my post regadring the blades...got a hard hard time find out the root of the problem , but airwolf is 2 blade, easier to handle.

treo , for the blade i still cant understand what you mean... we flew the cobra and 429 already using the setting -10deg

my heli is at the LHS , waiting for the replacement parts frm Roban.

also pls do try to change all the main frame screws to better ones before locktite...most of my screw ( locktited ) were stripped... i think i will take another whole day to remove one by one...

[mastrg]

Easiest way I have found to loosen thread-locked fasteners, is heat from a pencil tipped soldering gun, be it electric or butane fueled. Just hold it on the screw head for a couple of seconds, works on any thread locker blue, red and green, even have used it on stud and bearing lockers. Gary

[Andy01]

Originally Posted by keong

treo , for the blade i still cant understand what you mean... we flew the cobra and 429 already using the setting -10deg

Treo is quite right. The direction of rotation is irrelevant to the pitch setting. A heli cannot fly upright with negative pitch - simple as that.

I agree with Treo, the only you could get your settings is is to measure the pitch at the blades backwards and have the heli set up with trailing edges blade control. This means that when the swashplate goes up, the blade pitch goes negative, and to get positive pitch, the swashplate travels down.

I did make this mistake on my first CCW heli because I set it up the same as a little 450 pod & boom (that was obviously CW). When I spooled it up, I wondered why it would not lift off - it was because the swash moving up was giving me -11° of pitch, so I pulled 2800W and nearly bent the skids on my Long Ranger . I was using a standard Align pitch gauge at the time and didn't realise that it was reading backwards because the blade was facing the "wrong" way. It is harder to make the mistake with a digital pitch gauge.

So, either set it up with leading edge control and swash moving up at full stick, or have trailing edge control with the swash moving down at full stick (I think I have this right )

Colin

[treotraveler]

Originally Posted by keong

treo , for the blade i still cant understand what you mean... we flew the cobra and 429 already using the setting -10deg

If you got your 429 in the air, you where most likely at +10 degrees, and not -10 degrees.

If using a digital pitch gauge, you had it on the blade backwards. A digital pitch gauge needs be on the blade with the lcd screen facing the main shaft to get correct positive and negative readings on a CCW rotating head.

If using a standard, non digital pitch gauge, you need to rotate the gauge and set it on the blade so the numbers on the gauge are on your right. Numbers above zero would be positive, numbers below zero would be negative.

[mastrg]

Been slowly adding to my build, wiring up the leds and controllers. Installing spot/landing lights flush to the bottom





I even put the war bird lights in the guns and rocket launcher. All right where is that FedEx truck Gary

[treotraveler]

Originally Posted by mastrg

Been slowly adding to my build, wiring up the leds and controllers. Installing spot/landing lights flush to the bottom

Attachment 508730

I even put the war bird lights in the guns and rocket launcher. All right where is that FedEx truck Gary

Ok...Let me know how that Nos injection to the electric motor works out. I may try some of that toooo.....

[mastrg]

It would keep the motor and the ESC cool when your running at the max. But seriously it belongs in the 1/4 scale truck using a 32 cc weed eater motor pushing a pocket bike constant velocity trans. I think it flew better then the heli will.Gary

[mastrg]

Happy days, FedEx delivered three different orders on same day. Turn buckles and metal swash plate for today, Got a lot of reading for the DX 18, when setting up the swash for FBL is the normal setting considered one servo swash control? Added telemetry as well as gps . Just have to locate everything.Gary

[treotraveler]

Originally Posted by mastrg

Happy days, FedEx delivered three different orders on same day. Turn buckles and metal swash plate for today, Got a lot of reading for the DX 18, when setting up the swash for FBL is the normal setting considered one servo swash control? Added telemetry as well as gps . Just have to locate everything.Gary

Yep, swash type setup in the DX18 set to "Normal" under System Setup, is correct for 1 servo normal for the Beast. See my post #65 above....

[mastrg]

Thanks Treotraveler, I appreciate that info. I ordered a new swash plate but now that it is here the outer ring diameter is about a 1/4" smaller than the original. Will this cause me any problems. I think for sure I will start with your pitch values, then fine tune from there. Thanks again, Gary

[treotraveler]

Originally Posted by mastrg

Thanks Treotraveler, I appreciate that info. I ordered a new swash plate but now that it is here the outer ring diameter is about a 1/4" smaller than the original. Will this cause me any problems. I think for sure I will start with your pitch values, then fine tune from there. Thanks again, Gary

Did you get a Trex 700 swash? The Trex swash is machined aluminum with a different size bearing than the plastic Roban swash that comes out of a mold. There is only a 1.5mm distance difference with the linkage balls between the two swashplates. This will not cause any issues...