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HomeScaleAircraftHelicopterScale Model RC Helicopters Docs  Airwolf Turbine - My Build
05-26-2015 07:26 PM  3 years agoPost 61
Mojave

rrElite Veteran

Palos Verdes, Ca. USA

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It looks to be a very robust design and should work. My only advice to you is to be careful how much weight you add aft of the main shaft C/L. Scale machines are typically tail heavy to begin with. The more weight that you add back there, the more nose ballast will be required to get the CG correct. I think you'll be surprised at just how much you'll need to counter this additional weight. IMHO, you may want to make the actual box out of thinner ply...
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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05-28-2015 01:35 AM  3 years agoPost 62
ssmith512

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Indianapolis, IN USA

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My only advice to you is to be careful how much weight you add aft of the main shaft C/L
Thanks Barry. I had not really paid attention to that. But, based on your feedback, on I give you Version 2.0..................

Again, I welcome all comments, suggestions, advice and critiquing.

Watch at YouTube

Steve

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05-28-2015 01:53 AM  3 years agoPost 63
Mojave

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Palos Verdes, Ca. USA

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I think you have a winner there. It's functional, light weight and strong. A suggestion on the hatch for the bolt access, you don't need to hinge it, simple magnets will do the trick and save you time. If you take a splash mold of the top of the fuse before you cut it, then you can make a dummy panel that fits the fuse perfectly.
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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05-29-2015 01:43 PM  3 years agoPost 64
ssmith512

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Indianapolis, IN USA

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Thanks Barry! I love the magnet idea. Sure beats placing hinges!

You rock.

Steve

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05-30-2015 02:00 AM  3 years agoPost 65
ssmith512

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Indianapolis, IN USA

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Now that the removable tail boom has been finalized, moved on to some other stuff while I wait for some balsa core carbon sheet to arrive.........

Got the mechanics platform and fuel tank glued together. Exciting!!!

And started molding the carbon fiber front gear doors.
Started off with applying some plastic wrap (ClingWrap) to the fuse and using some modeling clay as a dam to keep any wondering resin from getting to places it is not allowed to be.....

Laid out and taped the edges of the carbon cloth to keep the woven fibers in check while cutting.......

And finally 3 layers of cloth with resin in place on the fuse. I'll let it dry overnight, say a few carbon prayers and hope I have a molded carbon sheet I can cut front gear doors out of tomorrow!

Steve

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05-30-2015 03:18 AM  3 years agoPost 66
Mojave

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Palos Verdes, Ca. USA

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Nice job, looks great! IMHO, for future reference, you can just apply a few coats of turtle wax to the fuse(polish between coats and the final coat), this will work very well. Or you can buy mold release agent and use that. That way you avoid the wrinkles from the cling wrap in the molded surface.
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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05-31-2015 09:22 PM  3 years agoPost 67
ssmith512

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Indianapolis, IN USA

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Thanks Barry. No kidding on the wax technique?? Really? Turtle Wax? Never would have guessed. Learn something new daily.

Progress is slow. I am at a point where I have tons of stuff to do - can do, but am hesitant to jump into all of it. Being my first major build, I find myself simply staring at things and doing a lot of thinking. I want to make sure I dont get ahead myself and do something "out of sequence" and cause me all kinds of headaches later.

Anyway,

Worked on the wiring and mounting fuel system components on the mechanics. Fuel pump mounting......

Fuel supply solenoid and Y-connector mounting......

And wiring and CGY750 mounting.......

Located the PowerBox Baselog and Jaka control units......


Added some carbon to reinforce the fuse where the removable tail boom plate will be attached.
Before carbon......

After carbon.....

And decided, after much internal debate, to go ahead and detail out the camera boxes (surveillance pods) to replicate the "full size". So I started with making a card stock mockup.......

And that is as far as I got. Ran out of materials LOL!! Was going to make the camera boxes out of 1/8" ply, but will use balsa instead. Dont got no balsa laying around, so I gotta wait until I can make a trip to get me some balsa. DOH!

Later alligators!

Steve

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06-01-2015 02:06 PM  3 years agoPost 68
Notar

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Taxachussetts

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Dont think either of those electronic boxes are in a good spot, considering that is where the exhaust will exit the turbine. You may want to rethink those postions. Also, some of the leads to the Jako box may need extensions, in that location.

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06-01-2015 03:21 PM  3 years agoPost 69
ssmith512

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Indianapolis, IN USA

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Joe,

It's hard to tell from the pics, but the control boxes are actually located at the front, in front of the fuel tank, right behind the front doors, so well away from the exhaust. The Jaka box is located on the right side of the fuse, which is the same side the wires from the turbine unit exit, so I should be OK on wire length.

Thanks for double checking though!

Steve

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06-14-2015 07:46 PM  3 years agoPost 70
ssmith512

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Indianapolis, IN USA

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As usual, progress has been slow. It's that time of year when outdoor stuff takes over and takes the place of indoor build time.

After getting the help I needed regarding the removable tail boom system, and waiting for parts and materials to arrive, I started on that process.

Got the boom plate cut out and here I am gluing the blind nuts in pace....

This pic show the top plate that will be affixed in the fuse bolted to the boom plate to help locate the blind nuts while the hysol sets up......

And started on the switch plate. Doing the layout......

And all cut out and test fitted. Pretty carbon fiber................

And got the tail boom finished and glued together......


Worked on the front retracts and tried to make doors but my attempts are failing miserably. May have to shelve that idea. Right now, trying to concentrate on getting the bare fuse "flying". Goal is to get it in the air before late fall this year. Then spend the winter on detailing and painting the fuse.

Next on the list is to finish up the removable tail boom system, then move on to getting the fuel tank glued in and the mechanics located and bolted in.

Steve

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06-15-2015 12:05 PM  3 years agoPost 71
Ironside

rrApprentice

Baltimore, MD

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You may want to reach out to Dennis Ideue ("advancedmerchant" on ScaleRCHelis.com) over at DennisRC.com! He did a really fantastic job on his Airwolf which included retract doors and a host of other things. Here are a couple of links to his build. They may come in handy.

http://www.dennisrc.com/site/airwol...ild_page_24.htm

http://www.scalerchelis.com/phpBB2/...=11340&start=75

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06-26-2015 11:39 PM  3 years agoPost 72
ssmith512

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Indianapolis, IN USA

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Get it on the floor! (a toss out to bwellmaker!)

Finished up the removable tail boom and am very pleased with the result. Very light, very strong, simple and easy. Just what I wanted.

Got out my shark with a frickin laser beam on its head and used it to ensure proper boom alignment.........

Here is a fantastic action shot of the mini clamps holding things together while the hysol sets up........

And the final assembly.......

I dont know how else to describe my jubilation!!!

Also been working on the front gear doors. I think I finally got something that will work. Almost gave up on them twice, but couldnt let it go. It was a problem that needed solved dangit! Gotta wait on some parts and pieces to arrive, and then hopefully I can get a working prototype in place and show you all what I came up with soon.

Steve

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06-27-2015 02:15 AM  3 years agoPost 73
doorman

rrProfessor

Sherwood, Arkansas

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Looking Real Good.,
You are "checking" all the right boxes..
Your going to have a beautiful machine..
Stan

AMA 2918-Team Spin Blades,,Castle Creations, Unique Aircraft

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06-27-2015 06:10 AM  3 years agoPost 74
HoverCharlie

rrNovice

Kitsap, WA USA

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Holy cow! what an amazing job. I really appreciate you sharing this with us. I've come up with several ideas to some some of my problems from watching and reading your posts.
Cheers

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06-27-2015 04:18 PM  3 years agoPost 75
Mojave

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Palos Verdes, Ca. USA

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Very nice work! This is coming along quite nicely.
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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06-28-2015 12:47 AM  3 years agoPost 76
ssmith512

rrKey Veteran

Indianapolis, IN USA

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Hey!!! My thread got moved to DOCS. Does that mean I am no longer on "scale probation"?? LOL!!!

Thanks friends!!

HoverCharlie, sharing is caring! I would have NEVER attempted a build like this without all the other folks who have taken the time to share their builds. Only way I know to how to "pay it back" is to keep the sharing train rolling down the track!

Worked on the landing gear.

First Vario supplies some rather "toy-ish" plastic wheels. Simply not acceptable.......

So, sourced some nice looking aluminum wheels with proper tires.......

The Vario setup uses 4mm axles, the new wheels are 5mm, so I needed to drill out the forks (forgot to take pics of that operation, so picture a drill press with a 5mm drill bit drilling through some aluminum forks ) Also needed to make new 5mm axles. So cut down some 5mm stainless rod....

Made some brass spacers to keep the wheels centered in the forks....

Turned out nicely!

Also started the process of modifying the side pods to get them ready for some chain gun action later on. Some layout before taking the knife to it....

First rough cut done.....

And test fitting them in place to see what kind of clearance I have with the retract servo....

And a random and unnecessary pic of the Cobra, 'cause!!!

Steve

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07-04-2015 01:42 AM  3 years agoPost 77
ssmith512

rrKey Veteran

Indianapolis, IN USA

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Say it with me...UPDATE TIME!!!!!!

This shiiii....stuff is bananas!

You all know my removable tail boom? Well, need to have access to these bolts holding the boom on......

so we got out the sledge hammer and started making holes!

One final look at the pristine fuse from the top (tail boom bolts are directly below this area) before we go all postal on it....

Access hatch laid out....

OH NO!!! What have I done!!!!

Oh ya, I cut an access hatch. Not perfect, but I am pleased with the results..

Here's a shot of the magnet and resting tabs...

And a side shot showing how awesome I am at making the hatch fit perfectly flush!! LOL!! (OK so I got lucky!)

Just needs some final detail sanding and blending and it will look the shiznit. I'll add a "handle" that will simulate an aerial or antennae later to facilitate removal.

Also painted up the front retract housing with flat black. Didnt really want the pretty blue resin color showing through the windows when complete. The unpainted parts are at the glue joints.

Gonna let that paint dry and then we can glue the front housing in the fuse and then I can move on to getting the mechanics platform glued in.

Gotta order up some M-blades. I have heard they can take a while to get.

Happy 4th ya'll!

Steve

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07-12-2015 06:37 PM  3 years agoPost 78
ssmith512

rrKey Veteran

Indianapolis, IN USA

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Get it on the floor!!

Front retract housing all ready to go. SBUS servo programmed, end points set, speed set, retract assembly shimmed, lubed and working perfectly.....

Rough cut the front retract hole in the fuse to help with alignment of the housing. Hole is cut a few millimeters small. Will hand file to the correct size after the front housing is fully cured in place....

Front housing in place while while the hysol dries....

And she is sitting on her gear!!! WHOO!! WHOO!! Major milestone for me at least LOL!!

Steve

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07-12-2015 07:13 PM  3 years agoPost 79
doorman

rrProfessor

Sherwood, Arkansas

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Looking Good!!!
Baby looks good on her legs!!!!!

Nice job...

Keep on keep'n on!!!

Stan

AMA 2918-Team Spin Blades,,Castle Creations, Unique Aircraft

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07-12-2015 08:43 PM  3 years agoPost 80
ssmith512

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Indianapolis, IN USA

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Thanks Stan!

I am getting anxious and nervous. Two big milestones will hopefully happen soon:

#1 First ever turbine start and run.

#2 And then, as long as there are no setbacks, first test flight before Halloween.

SCARY!

Steve

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HomeScaleAircraftHelicopterScale Model RC Helicopters Docs  Airwolf Turbine - My Build
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