rrTV-PHOTO   New HD TV
HOME   rrTV-PHOTO   GALLERIES   MY GALLERY   HELP-FAQ
myHOME PM pmRR MEMBERS 339 ONLINE 21 EVENTS SEARCH REGISTER  START HERE
 
10 pages [ <<    <     1      2     ( 3 )     4      5     NEXT    >> ]3711 viewsPOST REPLY
Thunder Power RC . Mikado Modellhubschrauber . GrandRC

.
.
Gasser Model RC Helicopters > My Spectra arrived - Cracked canopy and all!
 
 
Eyefly
Veteran
Location: Charlotte, NC

Congratulations. Would a few youtube videos be too much to ask for? Mine is in the mail and I will be doing the next build thread...
06-26-2008 09:06 PM
 
 
Eury
rrProfessor
Location: Ankeny, IA, USA.

I'll do a video or two, but it'll be a while. My first few flights are just going to be shakedown flights, then I like to go through the heli to check that everything is tight and working properly. I didn't fly it today, I noticed that just in my working on it the boom shifted back just enough to only partially engage the torque tube, so I'm going to pull the boom and boom block off and make sure that the tube is fully engaged, then add a screw on each side to hold it in place. It would have been funny to have that happen in the air and have to either auto it in or crash it. I had the exact same thing bring down my 1005 a few years ago. It'll fly tomorrow.


Nick Crego
Still wanted by the government, I survive as a soldier of fortune.
06-26-2008 10:33 PM
 
 
rbort
Elite Veteran
Location: Franklin, MA - U.S.A.

Hmmmm.

Quote 
I noticed that just in my working on it the boom shifted back just enough to only partially engage the torque tube

How could that happen? 4 screws in the clamp not tight enough? If I tighten those well, the boom can't go anywhere. Furthermore when you tighten the boom support camp screw, the boom supports serve as further holding power preventing the boom from moving.

Are you sure the boom moved, or, perhaps the tail box did? The tail box is alot more likely to move, the boom goes all the way down into the clamp and stops at the lip on the clamp. You did put the lip towards the mainshaft side right?

Don't forget to put grease in the torque tube couplers. It extends their life and keeps slop out of the tail.

On the tail rotor side, a piece of tape under where the clamp goes helps alot to prevent the tailbox from rotating on the boom slightly.

Hope this helps.

-=>Raja.

1005 Xcell Gas, BHH G26 3D Plus, Jewel Generator
Spectra-g, BHH G26 3D Plus, Jewel Generator
06-27-2008 01:48 AM
 
 
Eury
rrProfessor
Location: Ankeny, IA, USA.

Those 4 bolts were as tight as I could get them, and it shifted back 1-2mm. I made a mark on the boom so I could see if it happened. It's not unusual, I had it happen on my 1005 as well, and if you do a search in the MA forum, it looks like you're the only one who hasn't seen it happen, Raja. The MA forum is loaded with guys putting a screw in, wrapping the boom with tape, heck, some epoxy the boom into the boom block.

The tail box isn't going anywhere, it's already got 2 screws through the clamp, through the boom, and into the tail box itself. It's the front of the boom that moved.

I'll post a pic I took this morning in a little bit. Unfortunately it no longer looks like that, my clear coat ate the paint and ruined the paint job, so I've got to strip and repaint. It's bad enough that no repair is possible. Oh well, I wasn't 100% happy with the old paint job.


Nick Crego
Still wanted by the government, I survive as a soldier of fortune.
06-27-2008 03:47 AM
 
 
Toadster25
Veteran
Location: Iowa

I've heard of the boom sliding out too but I've never felt the need to put a screw in the front. I always figured with the boom supports and the front blocks tightened down that it wouldn't come out. I also like it to be able to slide out in a crash but it hasn't saved me from striping the crown gear in either of my 2 crashes. I don't do any 3D type of flying so I can't see me doing anything crazy enough to have the boom slide out.
06-27-2008 04:07 AM
 
 
rbort
Elite Veteran
Location: Franklin, MA - U.S.A.

Lets step back a bit

How on earth did the boom shift out 1 to 2mm and you haven't even flown the bird yet? Are you carrying it around by the boom or something?

Quote 
it looks like you're the only one who hasn't seen it happen, Raja.

I GUESS so!!! Just like toadster I never put screws in my boom clamps or had any issues with either my 1005 or my Spectra-g, way too many flights too. I did have issues with the tail box, mostly on the 1005, rotating on the cf boom. I put tape back there below the clamp to fix that problem.

I'm still confused as to HOW it shifted. When I'm working on my heli and I'm trying to shift it on purpose, I can't even move the damn thing with all my twisting motion until I've loosened all 4 screws on the boom clamp. I must be some weakling or something!

-=>Raja.

1005 Xcell Gas, BHH G26 3D Plus, Jewel Generator
Spectra-g, BHH G26 3D Plus, Jewel Generator
06-27-2008 05:04 AM
 
 
Eury
rrProfessor
Location: Ankeny, IA, USA.

While working on the heli, the boom shifted back, so I put a screw in it. Why would that bother you? Don't worry, I'm not going to come to your house and drill a hole to add a screw to yours. I can't explain it, but I had it happen on a 1005, and I saw it happening on this one just on the bench while working on it, so for security, it's now got a small screw. It's not going to shift again.


Nick Crego
Still wanted by the government, I survive as a soldier of fortune.
06-27-2008 01:54 PM
 
 
xcellgasman101
Elite Veteran
Location: WOODWARD, OKLA....

Nick, although this has never happened to me either, I have read about it happening to others, and your correct to use the screw thru the clamp and into the boom, as long as your carefull not to get into the torque tube, and I'm sure you were,,, I wonder if MA has a problem with the company that makes that part,, and are letting some out of spec parts to pass,,, Either way, you have the problem fixed, Congrats,, XGM/VGM

John Crotts
www.soonerhelicamproductions.com
06-27-2008 02:12 PM
HOMEPAGE  
 
 
Eury
rrProfessor
Location: Ankeny, IA, USA.

I think that's what the root of the problem is, that not all booms are exactly to the same spec. some are just a little smaller, some are just a little larger. I got a small one.


At any rate, like I mentioned yesterday, my clear coat ate the paint on my canopy. It's going to take me a while to get it prepped and painted again. So, it went from looking like this:



To being blasphemous. I don't have time to prep and repaint the canopy if I'm going to fly this weekend, and I had this Canomod Synergy canopy sitting on the shelf. Surprisingly, it fits very well, actually, it fits better than the stock canopy. All I needed to trim was the bottom to clear the baseplate and switch, and drill 2 new holes for the front mounts. For those front mounts, I put a set of 42mm long canopy mounts in the front holes that they say to use if you have a front mounted engine, marked and drilled the holes int eh canopy and it matches up perfect. The front mounts that I used came from my Predator spares. I need to clean up the cuts on the bottom, but I think it looks good. I'd actually just keep it on there, but the reason that canopy was sitting on the shelf is that I have a hard time seeing it in certain skies. It turns into a grey blob at distance on a blue sky. Surprisingly, it's fine in a grey sky.




Nick Crego
Still wanted by the government, I survive as a soldier of fortune.
06-27-2008 02:55 PM
 
 
j.8
Senior Heliman
Location: Denmark

Hey Eury

That Synergy canopy looks nice on the Spectra.

Regards Bo
06-27-2008 03:05 PM
 
 
xcellgasman101
Elite Veteran
Location: WOODWARD, OKLA....

Quote 
I got a small one.

Man that's one nice looking canopy!!! XGM/VGM

John Crotts
www.soonerhelicamproductions.com
06-27-2008 03:06 PM
HOMEPAGE  
 
 
Eury
rrProfessor
Location: Ankeny, IA, USA.

Thanks, wish I could take credit for the paint job. It's been a decoration in my shop for a few months since I discovered that it was tough to see in the air while flying it on my Freestyle. Those Synergy canopies fit everything.


Nick Crego
Still wanted by the government, I survive as a soldier of fortune.
06-27-2008 03:12 PM
 
 
pgkevet
Veteran
Location: surrey UK

Nice job! .. just remember those vids

pgk
06-27-2008 04:29 PM
 
 
Eury
rrProfessor
Location: Ankeny, IA, USA.

Under the hood

Here it is under the hood. I used Raja's fuel tube routing, it's a very clean solution. All the wires have expandable sleeving to cover them where they come near the frames, and the excess is tucked in between the frames. You can see in the detail pic what I do to protect the wires. I cut a large piece out of a mousepad (it's a nice foam rubber material) and lined the inside of that section of the frame with it, then placed the wire bundle inside of that. It protects the wires from wear, and is nice and soft.

For the battery I chose a 1900 Nicad. The servos I'm using are 8717s, which have a VERY high amp draw, and those 1900 SCRs have the lowest impedence of any of the packs I looked at. So, that coupled with the generator means I shouldn't have any problems at all as far as power goes. That's mounted on a couple pieces of tape along with a velcro strap. It's very secure, I can literally pick the heli up by it.

The only thing I'm not really happy with is how I have the regulator for the generator mounted. It's on a couple pieces of tape with a velcro strap, so it's not going anywhere, and it's got plenty of airflow, I just don't like how it's hanging out there.




Nick Crego
Still wanted by the government, I survive as a soldier of fortune.
06-27-2008 06:02 PM
 
 
rbort
Elite Veteran
Location: Franklin, MA - U.S.A.

Good stuff!

Can you put the regulator on the back side right above the battery? That is where I have mine. Also, maybe you can put the battery down first on the radio tray lengthwise and then put the receiver/gyro on top of it to make some more room if you need it for the regulator? Just a thought. Also make sure that regulator has some double sticky tape or velcro between it and the frames so that the shrinkwrap doesn't wear through over time and short out the electronics on the frame. No governor as of yet?

Let us know how it all works out for you once you get some flights under your belt!

-=>Raja.

1005 Xcell Gas, BHH G26 3D Plus, Jewel Generator
Spectra-g, BHH G26 3D Plus, Jewel Generator
06-27-2008 06:10 PM
 
 
Eury
rrProfessor
Location: Ankeny, IA, USA.

I could probably move it over there. Honestly, it was laziness that made it go on that side, I taped the round piece from the generator up top on the left and went from there. I didn't want to cross over the frames with the regulator. I may mess with it after I fly a bit, it's got 2 layers of tape underneath it, so it's fine where it is, I just think it looks tacked on. Since I used a big battery, I wanted it to go rearwards more, just for balance. As it sits now, it's slightly tail heavy without fuel, with half a tank it should be dead on.

I've got the TJ Pro on it, you can see it sitting on top of the receiver. I use the stock hall sensor to pick up the magnet on the crank, you can just see the top of the sensor bracket peeking above the muffler in one of the pics. That setup works great, nice and light, simple, and no additional pieces to buy, you just have to spend a little bit of time experimenting to find the right position for the sensor.

Thanks for the feedback, I'm going to fly it this evening, when I get back I'll look at maybe putting the re over on the right side.


Nick Crego
Still wanted by the government, I survive as a soldier of fortune.
06-27-2008 07:10 PM
 
 
rbort
Elite Veteran
Location: Franklin, MA - U.S.A.

Yes look at my photos

The rectifier is where mine is. Then I cross over the frames just behind the gyro to the other side and mount the regulator there with double sticky tape.

Balance wise I think if you're level empty its fine. You'll be able to put the big battery up front with no issues in my opinion. Actually my battery is not quite big enough and I have it moved forward to put more nose weight on it. But don't sweat heli CG too much, I don't see much difference from slightly nose down to slightly nose up on the different models that I've flown.

I can't wait for your flight update, I'm just as excited as you are to hear the field report! By the way, didn't see a battery monitor, do you have one on there? I found a good place to stick it is inverted right on the switch so you can see the LEDS from a nose in hover (inverted makes the LEDs lower).

P.S. Are you going to keep track of how many flights?

-=>Raja.

1005 Xcell Gas, BHH G26 3D Plus, Jewel Generator
Spectra-g, BHH G26 3D Plus, Jewel Generator
06-27-2008 07:29 PM
 
 
jschenck
Elite Veteran
Location: La Vista, NE.

Quote 
By the way, didn't see a battery monitor, do you have one on there?

That's a good item to have! - I flew for 20 minutes on Wednesday at lunch. Landed and took note the gyro said 4.6V (!!) - verified that with the Flight log (flashing) and the GV-1.

I didn't see anything wrong right off so I started packing it all away. After I had it loaded in the heli hauler (Saturn wagon) just starring at it puzzling I reached over and spun the motor/alternator. It moved free, both directions. Ah-HA! Even with a flat spot I put on the output(input?) shaft and loctite on the grub screw it slipped. So two takeaways:

1. Some type of visual clue to the health of the electrical supply. I'm going to use an LED bar, it should always be full lit once the engine is up at speed.
2. The note that suggests replacing the flat blade grub screws on the spider gears is a REALLY GOOD IDEA!

...yep...
06-27-2008 08:24 PM
 
 
Eyefly
Veteran
Location: Charlotte, NC

Once again, I am going to require a video of the Synnergy-G
06-27-2008 09:11 PM
 
 
Eury
rrProfessor
Location: Ankeny, IA, USA.

No Voltwatch, the LHS is out, so I won't have one until next week. I put a tap coming right out of the receiver that I can hook my tester to and see if the generator is working. If I do that after I start, it'll be fine until the Voltwatch comes in.

Something you might want to consider when mounting the Generator is using some green locktite on the motor and start shafts when you put it together, then put the set screws in. Even if the screws fail, the locktite should hold it just fine. I do that on my start couplings on all my helis, and I've actually had one where I went to do service on it, and discovered that the set screws were gone for who knows how long, and it never slipped even with the force of the starter.


Nick Crego
Still wanted by the government, I survive as a soldier of fortune.
06-27-2008 09:19 PM
 
 
10 pages [ <<    <     1      2     ( 3 )     4      5     NEXT    >> ]3711 viewsPOST REPLY
CanoMod . Futaba-RC . A Main Hobbies

.
.
Gasser Model RC Helicopters > My Spectra arrived - Cracked canopy and all!
 PRINT TOPIC Advertisers 

Subscribe to This Topic

Friday, December 5 - 11:51 am - Copyright © 2000 - 2008 runryder.com | email | link to rr | runryder needs cookie