Author Topic: New Electric Twin project back on track (Read 149880 times)

55chevr · « **Reply #300 on:** April 01, 2014, 09:05:33 AM »

Looks fast sitting still ... has a very "aero" appearance. Beautiful.

JD

55chevr · « **Reply #301 on:** April 18, 2014, 06:02:07 AM »

Bob - I love the look of the "TwinFire". I want to this fly.

55chevr · « **Reply #302 on:** April 18, 2014, 06:16:38 AM »

Insert Quote

Bob - I love the look of the "TwinFire". I want to see this plane fly.

Mark Scarborough · « **Reply #303 on:** April 19, 2014, 07:05:06 PM »

Bob, those retracts are something huh,,

I have been reading some stuff on them,, it might be a good idea to make some form of strain relief for the wire exits,, I have heard of a few problems with wires fatiguing at the exit point,, MOSTLY on nose gear as a result of the steering portion from what I gather,, but it may be a good idea to be safer than sorrier,,

Mark Scarborough · « **Reply #304 on:** April 19, 2014, 09:36:39 PM »

Quote from: Bob Hunt on April 19, 2014, 07:24:57 PM

Hi Mark:

I'm not using the stock struts. I have had special ones made that are more robust. Also, I'm not using an actual E-Flite nose gear in the nose of this ship; it is a standard gear with no steering capability. I've researched these retracts quite a bit and am confident that they will perform well in this application. As a safeguard I might put "whisker skids" at all three gear points to protect the model in case of a malfunction. Of course these would only be used in practice; I'll remove them for appearance point judging and actual competition flights.

Thanks for your concern!

Later - Bob

knowing how hard you work on your finish,, Just thought I would pass it on,,
I agree, they are pretty well made units,, and of course,, it makes sense not to use a steering retract,,
Aside from the minor issue with the servo wire fatigue,, ( not the strut wire) I think they are pretty darn reliable from what I have seen,, I too have a set in the drawer,, waiting,,,,,,

wwwarbird · « **Reply #305 on:** April 19, 2014, 11:12:48 PM »

Quote from: Mark Scarborough on April 19, 2014, 09:36:39 PM

Aside from the minor issue with the servo wire fatigue,, ( not the strut wire) I think they are pretty darn reliable from what I have seen,,

How about a little fillet of silicone around the servo wire lead to help support it?

Crist Rigotti · « **Reply #306 on:** April 20, 2014, 11:55:12 AM »

Bob,
Very cool. I would think you'd have the spinners and props installed also when doing this sorta check?

MarcusCordeiro · « **Reply #307 on:** April 20, 2014, 08:16:10 PM »

Fabulous!!!

Marcus

Crist Rigotti · « **Reply #308 on:** April 20, 2014, 08:26:39 PM »

Quote from: Bob Hunt on April 20, 2014, 12:04:45 PM

You're absolutely right, Crist; I just threw the motors in place for the photos and I'll add the props and the spinners and check the CG before starting the drawings of the actual nacelles. I just had a few moments to take those last photos before having to go carve the bird for dinner... Some things take priority!

Later - Bob

I hope you and your family had a very happy Easter and wonderful dinner.

RandySmith · « **Reply #309 on:** April 21, 2014, 02:51:35 PM »

Quote from: Bob Hunt on April 20, 2014, 07:49:16 AM

Hi Wayne:

It is my understanding (please someone correct me if I'm mistaken...) that silicone emits a substance when it cures that will corrode wiring. Back when I was flying RC Pattern, I was told to never put any silicone anywhere near any electrical components.

I'd like to take this opportunity to say Happy Easter to everyone, to ask for God's blessings on us all, and to thank God for His gift of His Son, Jesus.

Bob Hunt

Hi Bob

You can use Silicone but you need to "sleeve" the wire or part, just use a piece of plastic tube, or heatshrink will also do, the just put the silicone on the part the sleeve covers, let air dry in "OPEN" ventilated space.
The substance or gas it emits is acetic acid, or vinegar taken to the next step.
Randy

Allan Perret · « **Reply #310 on:** April 26, 2014, 04:25:46 PM »

So what brand of long-curing epoxy do you use/like ?

James Mills · « **Reply #311 on:** April 27, 2014, 04:00:48 PM »

Very cool Bob, look forward to seeing it in person.

James

Noel Corney · « **Reply #312 on:** April 27, 2014, 04:17:20 PM »

Bob , You are using micro balloons in your epoxy as GAP filler!!!! I didn't think that at your level of craftmanship you would have those, But as for making the epoxy stronger I have avoided using it except when absolutly necessary as my understanding was that it weakend the joint!!! TIA . Noel.

wwwarbird · « **Reply #313 on:** April 27, 2014, 06:33:42 PM »

Quote from: Bob Hunt on April 27, 2014, 04:29:12 PM

Hi Noel:

Actually a man I know that worked in the adhesive/chemical business told me to never use epoxy glue without a binding agent such as milled glass fibers or microballoons...

Later - Bob

Hmm, really? How about when laminating?

Robby Hunt · « **Reply #314 on:** April 27, 2014, 10:59:10 PM »

Lookin' badass Bubba!

Noel Corney · « **Reply #315 on:** April 27, 2014, 11:41:24 PM »

Thanks Bob,I have been wary of using micro balloons in my epoxy, Makes it easier to use in my opinion. Are there any ratios recommended?? Noel.

Allan Perret · « **Reply #316 on:** April 28, 2014, 07:33:02 AM »

Good info at West Systems about use of fillers in epoxy:

http://www.westsystem.com/ss/filler-selection-guide/

http://www.westsystem.com/ss/adding-fillers/

Microballoons is a good filler for fillets/fairings, but there are better fillers for joint strength.
I have a container of the 410, the stuff is so light you have to be careful not to breath when you open it up.

Larry Renger · « **Reply #317 on:** May 06, 2014, 05:57:02 PM »

This is the third one, actually, isn't it? Whatever became of the first one and the test one? Or am I losing track?

Larry Renger · « **Reply #318 on:** May 06, 2014, 06:05:30 PM »

Absolutely interesting! I guess we have less patience than you do.

wwwarbird · « **Reply #319 on:** May 06, 2014, 10:23:59 PM »

Quote from: Bob Hunt on May 06, 2014, 06:02:46 PM

I just thought that the building process of these ships might be of interest to the readers on this forum.

Later - Bob

Yup, very much so. Sure am anxious to see some color though!

Allan Perret · « **Reply #320 on:** May 07, 2014, 06:59:45 AM »

That nacelle alignment process is pretty impressive. And it does look like a lot..

Just curious, when doping the cf on the rudder/fin do you have a fixture to hold model with wing vertical so the rudder surfaces are horizontal.

I use a cardboard box about 3ft tall, and the 20" x 20" top opening is lined with foam pipe insulation to protect model. Works great.

wwwarbird · « **Reply #321 on:** May 07, 2014, 09:36:08 PM »

Quote from: Bob Hunt on May 07, 2014, 04:33:24 AM

Gee Wayne, it has dark gray on it now...

Trust me, I'm working just about as fast as I'm able to.

Later - Bob

Just keepin' ya on your toes Bob!

MarcusCordeiro · « **Reply #322 on:** May 08, 2014, 10:17:59 AM »

Marcus

Tom Niebuhr · « **Reply #323 on:** May 14, 2014, 10:14:39 AM »

Thanks for another update. Looking goooooood!

I hope that you don't run out of time to fly the twin at the Nats.

MarcusCordeiro · « **Reply #324 on:** May 15, 2014, 03:14:29 PM »

Such a beautiful job!!

Marcus

Chris Cox · « **Reply #325 on:** May 15, 2014, 06:25:55 PM »

Great fit on the gear doors Bob. They are virtually invisible

wwwarbird · « **Reply #326 on:** May 15, 2014, 09:55:20 PM »

Quote from: Bob Hunt on May 15, 2014, 02:34:29 PM

Primer goes on Sunday!

Chris Cox · « **Reply #327 on:** May 15, 2014, 11:04:13 PM »

All kidding aside Bob, it looks great! Can't wait to hear how it flies.

That said, the bomb door idea isn't too bad!

Alan Resinger · « **Reply #328 on:** May 16, 2014, 07:51:49 AM »

Bob,
What size props are you going to use? I know a guy that might be able to supply you with a RH and LH pair for the project.
Alan

john e. holliday · « **Reply #329 on:** May 16, 2014, 08:32:38 AM »

With that carbon finish it reminds me of some of the military jets that are flying. It's looking great and I hope is worth the effort.

Tom Niebuhr · « **Reply #330 on:** May 16, 2014, 09:14:45 AM »

Bob,

Remember that AMA does not allow things dropping off airplanes during official flights....so......keep the bombing runs for demos only!!!!!

Tom Niebuhr · « **Reply #331 on:** May 16, 2014, 09:47:02 AM »

Bob, Chris,

Now that the real purpose of this magnificent project has been revealed, a name change is in order. Electro Bomber; Hi Voltage Bomber; Electron Bomber; Shocking Bomber:

Robby Hunt · « **Reply #332 on:** May 16, 2014, 11:08:46 AM »

"Voltage Drop" anyone? Haha.

Bill Little · « **Reply #333 on:** May 16, 2014, 03:11:10 PM »

Hi Bob,

As usual your workmanship is awesome. I hope it flies beyond your expectations! Looking forward to seeing it in paint and hearing the flight reports.

Bill

Tim Wescott · « **Reply #334 on:** May 16, 2014, 03:16:06 PM »

I think that electric planes have been around long enough that we don't need to have electron-themed names for the things.

Lesse -- twin engine, looks like a mosquito but it's not. Musquito, bug, interesting bug, interesting flying bug -- lightnin' bug!

Robby Hunt · « **Reply #335 on:** May 17, 2014, 11:38:15 AM »

Quote from: Tim Wescott on May 16, 2014, 03:16:06 PM

I think that electric planes have been around long enough that we don't need to have electron-themed names for the things.

Are you positive? Don't be negative.

Tom Niebuhr · « **Reply #336 on:** May 17, 2014, 02:03:27 PM »

Tim,

Bob mentioned the bomb doors in jest. I have known Bob since we were both in our teens. Certainly Robby knows his dad pretty well. So Robby, Chris and I are having some fun at Bobby's expense, and I am sure he is laughing with us.

So like Robby suggested, don't be negative.

I sort of like Robby's "Voltage Drop". After all, Bob said it is a bomber! Maybe someone else can come up with another name.

Robby Hunt · « **Reply #337 on:** May 17, 2014, 02:23:41 PM »

Quote from: Tim Wescott on May 16, 2014, 03:16:06 PM

Lesse -- twin engine, looks like a mosquito but it's not. Musquito, bug, interesting bug, interesting flying bug -- lightnin' bug!

I'd say Tim is right there too!

wwwarbird · « **Reply #338 on:** May 17, 2014, 10:44:34 PM »

Since it's a twin, having two "thrust generators", I think Bob's "Second Wind" name is really cool and actually applies to the entire project. Beyond that, it may take Howard to resurface here to come up with a topper.

Dean Pappas · « **Reply #339 on:** May 19, 2014, 09:51:20 PM »

Quote from: Robby Hunt on May 17, 2014, 11:38:15 AM

Are you positive? Don't be negative.

I ought to say something clever about staying grounded during these discussions ... but I won't.
Dean

Robby Hunt · « **Reply #340 on:** May 20, 2014, 05:33:50 AM »

Quote from: Dean Pappas on May 19, 2014, 09:51:20 PM

I ought to say something clever about staying grounded during these discussions ... but I won't.
Dean

Uncle Dean, I know deep down you're still pulling for "Fred" in the name game, but surely you won't impede.

Shawn Lenci · « **Reply #341 on:** May 20, 2014, 04:06:51 PM »

Since Bob designed the "Hole Shot"...how new twin being called the "Double Shot"?

Shawn

Eric Viglione · « **Reply #342 on:** May 21, 2014, 06:06:03 AM »

Quote from: Tim Wescott on May 16, 2014, 03:16:06 PM

I think that electric planes have been around long enough that we don't need to have electron-themed names for the things.

Lesse -- twin engine, looks like a mosquito but it's not. Musquito, bug, interesting bug, interesting flying bug -- lightnin' bug!

Tim, Bob could just go with the thread title, but I do like your wind idea...so... how about "New Electric Wind Twin" ? The best part of this name is obviously that we would get to call it "The NEWT" for short.

MarcusCordeiro · « **Reply #343 on:** May 21, 2014, 11:11:22 AM »

Bob

Only the truth....
It's threads like yours that get us, normal people, motivated to dare try to build something that vaguely resembles what you and the other top builders do here.
If I am a better builder now, I owe it all to the people who post here.

Marcus

wwwarbird · « **Reply #344 on:** May 21, 2014, 10:39:38 PM »

Bob,

Did the primer happen last Sunday?

PJ Rowland · « **Reply #345 on:** May 21, 2014, 10:50:02 PM »

I've seen a lot of talk, and a lot of Photo's - as impressive as this is.. I just want to know if its NATS Ready ?

And if so - will this be the year ? Only a few more weeks.....

Larry Renger · « **Reply #346 on:** May 22, 2014, 08:30:09 AM »

Fly it in primer if you have to, I bet you still get 10 points for appearance! It's beautiful in just carbon veil!

Dean Pappas · « **Reply #347 on:** May 22, 2014, 08:29:34 PM »

F.R.E.D. shall rise again!

Dean

Robby Hunt · « **Reply #348 on:** May 22, 2014, 09:12:15 PM »

Quote from: Dean Pappas on May 22, 2014, 08:29:34 PM

F.R.E.D. shall rise again!
Dean

I retract my jest.

PJ Rowland · « **Reply #349 on:** May 22, 2014, 11:23:17 PM »

Sometimes real world issues arise ?

I got married, and am coming over on a Honeymoon to fly in the Nats - From Australia.. dont tell me you can't get that finished.

PRIORITIZE !!!!!

:-)

Im sure you will take your time and have something amazing.

Author Topic: New Electric Twin project back on track (Read 149880 times)

Robby Hunt

Robby Hunt

Robby Hunt

Robby Hunt

Robby Hunt

Eric Viglione

Robby Hunt