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Old Sep 30, 2012, 02:35 AM
Promoting Model Aviation...
Murocflyer's Avatar
United States, OK, Henryetta
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Originally Posted by HELModels View Post
^^^^^^That's funny!
Thanks!


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Originally Posted by Capt. Crunch View Post
That's right, I just couldn't rfemember the acronym when I was writing.

Thanks Frank,

Crunch
You are welcome Capt. Those guys are doing something really special in my mind as well. Hundreds of pilots all helping out, spending their time, efforts, and in some cases money, to help promote model aviation. I certainly applaud the efforts for all involved.

The goal of the WAA-08 adventure is to promote model aviation, I did not see what the geeks show's goal is. Is it to simply make the trip?

Frank
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Old Sep 30, 2012, 12:45 PM
Rocket Programmer
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Ratings? AD revenue?
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Old Sep 30, 2012, 03:50 PM
It's all fun till Crunch!
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Joined Jan 2002
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Personal voyage of discovery.

Do something most peeps say they can't.

Get out of the house and away from the wifey & kids.

Road trip.

Best water cooler stories.

Lots of good reasons out there.
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Old Sep 30, 2012, 04:19 PM
I fly 3-C Crash,Crunch,Crumble
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USA, NM, Clovis
Joined Feb 2010
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Originally Posted by Murocflyer View Post
I don't know what will happen. I suspect if the airplane is not repairable, game over. I mean that is the goal right? Flying across the USA in one go/trip?

I'm really surpised someone hasn't done this already by riding in the back of a pickup truck and flying their plane across the US.

Frank
1979 Trans Am Relay race in conjunction with the Jerry Lewis Telethon. Our club flew from Tucson ,Az to Blythe Ca. in the back of a pickup, and I still have the TX I used to do it. The plane was a giant Ugly stick with a .60 engine, and a 16 oz. tank. Had to make circles at times as we were only allowed to travel 55 mph. (the posted speed limit) with an official AMA observer with us. I don't remember the weight of the plane, but it was a blast and I would do it again in a heartbeat. Roy Creiglow AMA #8045/CD
ps: No the jacket no longer fits
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Old Sep 30, 2012, 05:19 PM
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Beaumont tx
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This was done in '76 with the "Liberty Bell" a Goldberg senior Falcon. Check Model Aviation -- history at AMA site for details. Detailsw which I no longer remember/


why reinvent the wheel?

howell
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Old Sep 30, 2012, 05:27 PM
I fly 3-C Crash,Crunch,Crumble
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USA, NM, Clovis
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Originally Posted by gwinhh View Post
This was done in '76 with the "Liberty Bell" a Goldberg senior Falcon. Check Model Aviation -- history at AMA site for details. Detailsw which I no longer remember/


why reinvent the wheel?

howell
H; here is a link to some info on the flight of the Liberty Bell, of which I had forgotten <https://www.modelaircraft.org/files/RichBob.pdf>
Royhttps://www.modelaircraft.org/files/RichBob.pdf
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Old Sep 30, 2012, 07:39 PM
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So... the 1.5 hr @ 70 mph thing... I know it seems they want to go electric, but could Saito's little 4 stroke gasser do the trick? http://www.espritmodel.com/saito-fg1...ngine-82g.aspx Sounds about right for a long distance 5 pound model that flies "on the wing". 20 oz of fuel would take you 1.5 hours with a 20 minute reserve. Would have to be a very sleek machine!
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Old Sep 30, 2012, 07:53 PM
It's all fun till Crunch!
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erkq,

I've only flown gliders and eledtric planes, no background in fuel models.
I've sometimes hear the expression "flies on the wing", but have never been able to figure it out because all aircraft fly because they have a wing.
Could you give me some insight on what it means?

Many thanks,

Crunch
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Old Sep 30, 2012, 08:19 PM
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I think it means, cruises with a small percentage of available power.
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Old Sep 30, 2012, 08:27 PM
It's all fun till Crunch!
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OK, now that I think of it, it makes sense. Like a 3D hover or Harrier isn't flying using the wing to keep it aloft.

Oh, and erkg, you're right, a small 4 stroke engine would go all day on modest fuel, but we're trying to see if an electric plane can do it, since Maynard Hill & the translantic guys proved it can be done on fuel, Maynard was diesel, don't remember on Atlantic crossing.
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Old Sep 30, 2012, 08:29 PM
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United States, CA, Sebastopol
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Originally Posted by Capt. Crunch View Post
erkq,

I've only flown gliders and eledtric planes, no background in fuel models.
I've sometimes hear the expression "flies on the wing", but have never been able to figure it out because all aircraft fly because they have a wing.
Could you give me some insight on what it means?

Many thanks,

Crunch
Quote:
Originally Posted by HELModels View Post
I think it means, cruises with a small percentage of available power.
Yes. Most models are grossly over-powered and sometimes RC pilots learn to rely on that to get themselves out of trouble. They "fly on the prop" and simply haul themselves out of stalls and other bad situations. Some 3D pilots fly almost in spite of having a wing... lots of hovering and below stall harrier flying. But this Saito is rated at 1.5hp... plenty of power for a 5 pound model. Flying "on the wing" is what most regular GA aircraft have to do... you have to pay attention to airspeed, angle of attack, plan ahead, etc.
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Old Sep 30, 2012, 08:36 PM
It's all fun till Crunch!
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Gottcha erkg,

BTW I just read the whole article on the Trans Atlantic crossing again, they used "Coleman Fuel" and the designer and project leader was also Maynard Hill!
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Old Sep 30, 2012, 08:37 PM
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Originally Posted by Capt. Crunch View Post
OK, now that I think of it, it makes sense. Like a 3D hover or Harrier isn't flying using the wing to keep it aloft.

Oh, and erkg, you're right, a small 4 stroke engine would go all day on modest fuel, but we're trying to see if an electric plane can do it, since Maynard Hill & the translantic guys proved it can be done on fuel, Maynard was diesel, don't remember on Atlantic crossing.
Ah... IC. Well I can fly my Bixler at about 20mph for 50 minutes on a 3Ah 3S battery. Scale up from there? I just can't see maintaining 70mph for 1.5 hours. That's going to be a tough one. But we'll be watching with 'bated breath!
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Old Sep 30, 2012, 08:42 PM
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Gottcha erkg,

BTW I just read the whole article on the Trans Atlantic crossing again, they used "Coleman Fuel" and the designer and project leader was also Maynard Hill!
Must be "white gas"... a very low octane gasoline with no additives.
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Old Sep 30, 2012, 09:43 PM
It's all fun till Crunch!
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As I see it the 70 mph is very unreasonable. I once talked to Dr. Selig about what to use for a model for long distance flights, he recomended a very low drag fuse and airfoil optimised for about 40-50 mph range, because the drag goes up as the square of the speed, ie drag at 30 = 1, at 60 = 4, pretty severe penality for increasing speed!

Jeff Keesaman won the last Calif. XC race at Baker using a mini pylon racer with an Astro 10 and 2 Li-Ion cells at less than 50 mph. Longest duration and longest distance for the day IIRC.
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