RC flying at its best

[Lonnie in Orlando]

I know that there are some RC pilots, general aviation pilots, and wannbe pilots on the forum. Hope you enjoy this ...

- Lonnie

[jackellis]

I enjoyed it tremendously.

I suppose practice makes the difference but IMHO it's easier to fly from inside the airplane than from outside. This guy has obviously spend a lot of time and a lot of money honing his hobby...er craft...er skill. Very impressive.

[BobSch]

Is that an airplane or a helicopter? Talk about a great power to weight ratio!

[gerti]

Unbelievable! I guess even with a ton of practice that would not happen for me. I had a remote off road car and a yard with 3 trees. It seemed to find the tress every time! I finally gave up.

[Richard in Smithville]

That was just amazing!

[jdon]

My first car- a '61 Chevy with bad rings- trailed smoke like that

[Old Dutchman]

There is a fellow who probably wouldn't have to work again! He could play around at every Fair, and aviation get together around the US, Sell His talents and try to teach flying classes where ever He goes. I wish I was as good at building stuff in My shop as He is at flying that plane!

[chopnhack]

Wow, some serious hardware and talent! That must be one powerful powerplant spinning that prop...

[BadeMillsap]

Wow!!!

Way cool! Thanks for sharing

[jackellis]

That must be one powerful powerplant spinning that prop...

High power to weight ratio, but I'd bet on very low weight rather than a really powerful motor. The power to weight ration in my airplane when fully loaded is 1/12 HP per pound, (or 12 pounds per HP). When I flew out of Tahoe last Thursday, it was more like 10 pounds per HP with just me and 30 gallons of fuel and I could climb like a rocket. Tower Hobbies has airplanes in this size category and it appears they weigh around 20 pounds. I have no idea how much power the recommended 35cc engine makes.

[LCHIEN]

High power to weight ratio, but I'd bet on very low weight rather than a really powerful motor. The power to weight ration in my airplane when fully loaded is 1/12 HP per pound, (or 12 pounds per HP). When I flew out of Tahoe last Thursday, it was more like 10 pounds per HP with just me and 30 gallons of fuel and I could climb like a rocket. Tower Hobbies has airplanes in this size category and it appears they weigh around 20 pounds. I have no idea how much power the recommended 35cc engine makes.

this model airplane motor of 35cc says it has 17 pounds of thrust:
http://www.troybuiltmodels.com/items/ROTO35FS.html

to be able to basically hang vertically from the prop like he does would take more than one pound of thrust per pound of airplane.

[sscherin]

The plane is the video is a 104" Aj Slick 540
Specifications
Wingspan: 104"
Length: 96"
Wing Area: 2100 sq.in.
Weight (RTF): 25-28 lbs.

Recommended Components
Engine: 100-120cc Motor: Hacker A100-8 ESC: Castle Creations ICE-HV 160A Servos: Hitec HS-7955TG
Battery: Thunder Power 12S 10000mAh LiPo

The DA120 makes 50+lbs of thrust with a 28" prop.

Now this is a big one..
60% Extra 260 95 pounds 180" wing span 342cc engine
http://www.youtube.com/watch?v=TdSp32H7X30

60% hover
http://www.youtube.com/watch?v=6d4kZ..._order&list=UL

[gsmittle]

Impressive. How does the plane fly horizontally with one wing pointed at the ground and the other at the sky? How does it generate lift with the wings vertical?

g.

[gerti]

Impressive. How does the plane fly horizontally with one wing pointed at the ground and the other at the sky? How does it generate lift with the wings vertical?

The plane was pitched upward (sideward?) about 25º. So the prop was providing the lift (upward force) and forward (sideways to the ground) motion. The speed was relatively high, so air was moving around all the control surfaces allowing the (extremely skilled) pilot to maintain control.

Not that being able to explain it makes it any less impressive.

[chopnhack]

No wonder it was off the ground in ~3 seconds.... 50+ lbs of thrust is phenomenal. When I was younger I had an interest in model rockets and the engines were all small, no more than 2-3 lbs of thrust.