A twin with retracts,,the limitations are endless I say,,,
Counter rotating props Bob ??

Bob,
So is there a "Third Wind" which is which???

 Nice to see some progress with the finish Bob, hopefully we'll see it all wrapped up and flying soon.

I just noticed looking at the photo of the twin in Chromaseal that you have in the background exactly what I'm looking for :

I'm in the middle of making the worlds biggest game of monopoly - and I need giant Dice.

 

Looks great!

Now the final work and graphics, clear coat and flight.  The NATS are getting very close. I know that you have very good airplanes ready, but I hope that this will be your NATS plane.

The Crossfire canopy treatment is meant to simulate many of the modern jets that have such shaped canopies. The twin is supposed to be more of a private plane look. Although it's always madness on my part, there is often method associated with it.  

Later - Bob Hunt

 Yup, gotcha.

Wel l , That was quick . Like good wine , I suppose . 

I'll be waiting.   Have fun at the NATS.

I little bird told me that the first twin will be in the air, possibly in less than a week, weather permitting.

Looking forward to the first flight report and pictures.

Fantastic !  Way to go Bob.  I'm staying tuned for the next chapter ! 

Dan

Awesome Bob!!!

I think having the props turning in towards the fuselage will be best since it will eliminate having a critical engine. I'd imagine having a critical engine on an electric twin wouldn't be that huge of a deal because of the timer.

Wow !  Fantastic work !  You are the best Bob !  I really like your stab jig too !  What adhesive did you use to put the carbon onto the foam ?  Thinned white glue maybe ?

Dan

Dan;

  Back in post #354, Bob discusses the construction of the wing, what her terms his "Lost-Sheeting method", and the adhesive used.  You are correct in what you surmised regarding the adhesive used...

  Requoted here:

  "We used the same technique to build the wing for this testbed model as we did for the Joe Nall Cadet models. We call this construction the  "Lost-Sheeting method." There is no balsa sheeting on the wing. The wing is a solid foam core made from 1-pound density foam. There is a slot cut in the center of the wing cores to allow the leadouts to get to the tip and have some adjustment. There are slots cut into the top and the bottom of the wing at the high point to accept 1/2 x 1/8- inch basswood spars. The spars run the full span of the wing. There are several shear webs imbedded in the core between the spar slots to prevent the spars from "racking." That is the technical term for what the spars want to do on either side of the wing during maneuvering. In an inside maneuver the top spar in in compression and the bottom spar is in tension. If there were no webs between them, they would try to "clap hands" under stress. The webs prevent the spars from trying to move and hence impart a tremendous amount of strength. Enough not to break under maneuvering loads by themselves? Not quite. After the spars are glued into the slots and are firmly glued to the vertical grain shear webs, we apply .2 (two tenths ounce per square yard) carbon mat using water thinned Titebond wood glue. The carbon is first applied from the back of the spar on the top, around the leading edge and ends at the back of the spar on the bottom. A thin carbon strip reinforces the trailing edge area, and an additional piece strengthens the entire center section area."

r/
Dave

Nice photos of construction.  It helps me figure out how to convert my ARC Oriental to ECL.
Was wondering what the service ceiling was on engine out?

Very cool!

Derek

bob,

Yea, something I noticed (with my neophyte knowledge) flying my electric last weekend. The thing pulls like a truck but is easy to fly corners and maneuvers. With an IC plane pulling that hard, it would take hydraulics to make a turn.

"So much time and so few experiments to do ... wait, reverse that."
With apologies to Willy Wonka,
  Dean P.

Bob,

Ben said that was very cool.

James

Looks good in the air, Bob!  I know the "real" bird will be better!

Bill

Bobby, I am so excited to hear of the success you are having with the twin.   I guess the electrics is the big secret.  Tell Robby hi from the old man.

>>It still pulled like the Queen Mary out there<<

That's something I noticed with mine. The pulls like a truck. With IC planes, when the pull like that, they are usually quite hard to turn from level flight. Takes a ton of stick pressure to get them to want to turn. With this new electrical beast, it was pulling quite hard but turned very easily and precisely. I found that odd.

>>Actually I have found that the swept forward trailing edges that I use on most of my models yield very little stick pressure.<<

Well, there may be something to that. My current plane has some forward sweep to the trailing edge. Only way I could get enough flap area with the elliptical wing.

Now, if I can just get out the slight hunt, I will be pretty happy with my new bird.

>>It still pulled like the Queen Mary out there<<

That's something I noticed with mine. The pulls like a truck. With IC planes, when the pull like that, they are usually quite hard to turn from level flight. Takes a ton of stick pressure to get them to want to turn. With this new electrical beast, it was pulling quite hard but turned very easily and precisely. I found that odd.

Randy I notice that all my electric planes also pull like a truck, I think the pusher prop I use cause it but they fly so well that I just can't make myself try a tractor prop. to see what happens.

 Did I miss it, or has the full meal deal original not flown yet?