Akibas Newest Ride
 

http://www.ctt.ne.jp/~wcraft/fanta.htm

Beautiful plane!

Chuck

RE: Akibas Newest Ride
 

Love the belt drive. I need one for my 30 cc gassie

The plug together two piece, one piece wing is also nice. We did that many moons ago and it works well.

Can the Japanese finish an airplane? Nice finish!!

Would be interesting to learn how well the rectangular wing planform and huge stab work in F3A

RE: Akibas Newest Ride
 

Wow.. what does the Belt drive do that a regular MAXON Gear Box won't do?

RE: Akibas Newest Ride
 

It adds complexity and makes people ask questions! :D

RE: Akibas Newest Ride
 

I would hate for a loose bolt to get caught up in that system.

Other than that it looks AWESOME!!! :D

RE: Akibas Newest Ride
 

Belt drives, Straight wings, big stabs... all part of F3A Planned Obsolescence dude.<div>Every time YS bring out a new engine, CPLR brings out a new design, Hacker a new motor , Hatori a new pipe.... everything we have becomes so, last year, so, non competitive, so, just not right for the new patterns. </div><div>The producers understand the the biggest ego related budgets in RC flying reside in F3A and IMAC.</div><div>Yeap... All you guys that kitted up with last years latest goodies...</div><div>Prepare your selves for a new season of fleecing.</div>

RE: Akibas Newest Ride
 

I saw photos of this belt drive on one of the Japanese sites last year, so it has been in development for a while.

What are the potential advantages of it? With all those gears and belts, from an engineering standpoint how much efficiency is lost? Maintenance must be a nightmare!

The thing is, it appears it might have been made obsolete already by Brenner's Contra drive.

Or maybe it can be used in combination with the Contra drive? Scary thought, eh?

RE: Akibas Newest Ride
 

Oh NO!!! You mean my 4 year old Integral is no longer competitive and should not even show up at a contest or even the practice field? The shame of it all..... Please don't tell my plane she is no longer capable nor am I[:o]

Just kidding of course. But, you do have a valid point David.

Woodie
Team Acme LG
Team Blenderm

RE: Akibas Newest Ride
 

Is it red?

Tim

RE: Akibas Newest Ride
 

I would dump the integral on some unsuspecting competitor or lower classmen and spend another 4K getting updated so you might win!

Chuck

RE: Akibas Newest Ride
 

I thougth that would be the result when I got the Integral, but my points per maneuver showed little if any improvement on average , I must have not spent QUITE ENUF on the upgrade, maybe another $1K would have made a .1000 point per maneuver improvement..... Now, I guess I am off to raid the retirement fund!!!! :D

Woodie
Team Acme LG
Team Blenderm - 3M

RE: Akibas Newest Ride
 

An Integral? You must be a fashion icon.
What about my Hydeout?http://www.rcuniverse.com/forum/js/f...what_smile.gif
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RE: Akibas Newest Ride
 

Hydeout? The laws of aerodynamics and lift have expired on that design, it probably won't even take off...... :D Now back to our discussion on the latest and greatest!!!

It will be interesting to see if the Proline 'square' wing planform will make any difference in flight performance.

Woodie
Team Acme LG
Team Blenderm - 3M

RE: Akibas Newest Ride
 

Lighter with easy replacement of parts while u sleep

RE: Akibas Newest Ride
 

Also probably much quieter than a gear drive.

With some of the "giant" props the tip speed with the gear noise has sometimes been a problem.

Harley has used a toothed belt drive for years - no noise - no maint (lubrication) - no adjustment as the belts they use don't stretch like chains.

Just the thing for a Stealthy Pattern Ship (New Category and Class).

Just a thought from a geeky "lurker"

RE: Akibas Newest Ride
 

Yeah, but a Harley doesn't have enough grunt to pull a skin off a rice pudding, let alone stretch a drive belt.

That's why real touring bikes are shaft drive and real sports bikes use a chain...Toothed rubber belts are for driving camshafts....

Just Kidding :-)

RE: Akibas Newest Ride
 

None taken as I've never owned a Harley, although in your neck of the woods your statement borders on heresy.
I think the V-Rod was/is belt drive.

I know off topic I'm done.....

RE: Akibas Newest Ride
 

Dean Koger used a belt reduction back in 90 or 91 as I recall (the Masters) on a fairly large model for the day. It drove what then was a "huge" prop (around 16") that Dean had carved. Oh yeah, the driver was a 60 on pipe because 61 was the max displacement allowed. I don't remember if Dean used a Toothed or a Vee. The only thing you heard was the whine of the 60 spooling up to around 15K rpm

You are quite correct..... Rubber belt drives are inherently quiet. That's the main reason Akiba san designed it that way

A few years ago one F3A Finalist competitor who flew electric gear reduction drive actually failed the sound check at the Nats. His score was tossed for the round

RE: Akibas Newest Ride
 

Dean used the belt drive that Wayne Ulery designed and built for him, along with the airplane Wayne did called the Vortex. Wayne also made all the props. That was in 1989, so 1.20 4-cycles were allowed. But they were not as much HP as a 2-cycle then. He made the team along with myself and Chip. It was a single belt. I guess noise might be an issue, but using two belts for a double stage reduction seems inefficient to me. And I doubt gear noise is much of a concern on the meter. Maybe in the air.

RE: Akibas Newest Ride
 

I thought it a called an EU-1?

RE: Akibas Newest Ride
 

What prop size he is using on this plane? & also what amps & cells?

RE: Akibas Newest Ride
 

The plane he flew the belt drive in was a Vortex. My dad talked to him several times as we were looking at building one with his setup at the time,

Arch

RE: Akibas Newest Ride
 

It wasn't so long ago that RCU pilots were claiming that T-cannalizers were a "band aid" for airplane design flaws, and that a properly designed airplane didn't need them. I think that CPLR's design theories have been more than validated. Good to see another F3A platform with the larger T on it.
Jim

RE: Akibas Newest Ride
 

I think the "T-Canalizer" is just the design tactic of someone who can't commit to a biplane!! lol

What does it do? What are the aerodynamic principles??

RE: Akibas Newest Ride
 

Not to mention the energy it absords. http://www.rcuniverse.com/forum/js/f...ey/msn/eek.gif

Advantages: quite and low mantainance.