AutoGyros All about autorotational flight, sport and scale autogyros! User friendly!

Begi Autogyro Kit

Reply

Old 03-25-2007, 04:41 PM
  #1  
floridagyro
Senior Member
Thread Starter
 
floridagyro's Avatar
 
Join Date: Feb 2002
Location: Wimauma, FL
Posts: 511
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Begi Autogyro Kit

Hi,

Just completed building Mickey's Begi gyro. Got a few flights in yesterday and this morning. If the winds would slow down a little it would be more enjoyable but so-far so-good.

I have up-loaded a couple of video's. Just click on the pictures in this link:

http://www.auav.net/sh/friedlander.html

Phil
Attached Thumbnails Click image for larger version

Name:	Yw67741.jpg
Views:	4335
Size:	50.6 KB
ID:	649716  
floridagyro is offline  
Reply With Quote
Old 03-25-2007, 05:04 PM
  #2  
mnowell129
Senior Member
 
Join Date: Aug 2004
Location: longwood, FL
Posts: 469
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Begi Autogyro Kit

Thanks Phil!
That pink is really pink!
mnowell129 is offline  
Reply With Quote
Old 03-26-2007, 07:52 AM
  #3  
rcflyerfl
My Feedback: (1)
 
Join Date: Dec 2001
Location: Lakeland, FL
Posts: 838
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Begi Autogyro Kit

Phil,
I would guess now that you are so old you need the Co-Pilot..Maybe thats what I need. Looks good and smooth. I see you have the pre-rotorator also. You built that fairly quick as I believe I seen you pick that up at Spring Hill.

Jim
rcflyerfl is offline  
Reply With Quote
Old 03-26-2007, 08:18 AM
  #4  
mnowell129
Senior Member
 
Join Date: Aug 2004
Location: longwood, FL
Posts: 469
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Begi Autogyro Kit

Really quick since I forgot to bring the hardware package to Spring Hill and
sent it a week later!
mnowell129 is offline  
Reply With Quote
Old 03-26-2007, 11:34 AM
  #5  
floridagyro
Senior Member
Thread Starter
 
floridagyro's Avatar
 
Join Date: Feb 2002
Location: Wimauma, FL
Posts: 511
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Begi Autogyro Kit

Hi,
I didn't really build it quick. It took at least 3 days, part time. Everything was put together with epoxy, vs. super glue and it takes longer. It allows more flex and seems to hold together better. Also, I use expoxy on the wood blades by mixing epoxy with alcohol and burshing it on. Makes a nice finish when sanded.

I made my debut at a large local flying club this morning. This is the real reward for flying gyros. Nobody at seen anything like this and they all had 50 questions after I made two very good flights. Now this is one of those clubs where you must stand in the flying stand, fly a pattern and be in the air with at least 3 other aircrafts controlled by pilots that should have given up flying 10 years ago so that means you fly the gyro while watching 3 orther aircrafts.

Jim, the FMA Co-pilot is there for emergency if I get really misoriented and I'm not sure if it will work. My first flight lasted 10 seconds with the Co-pilot set at max gain and it lifted off about 10 feet and then dove almost straight into the ground before I got control. After minor repair, the gain got turned way down so I'm not sure if it's doing anything. Mickey told me, without a horizontal stab, don't give it down elevator but I forgot that the Co-pilot is not aware of that.

Anyhow, if you do try the FMA Co-pilot, set the gain pretty low and maybe just put it on the roll servo.

Phil
floridagyro is offline  
Reply With Quote
Old 03-26-2007, 09:41 PM
  #6  
billf
Senior Member
 
billf's Avatar
 
Join Date: Feb 2002
Location: Hudson, WI
Posts: 263
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Begi Autogyro Kit

Hi Phil...
Looks very nice indeed. What engine do you have installed? It doesn't sound 'electric'.
By the way, the temp here today was 79...unusual for March in Wisconsin. Lots of guys flying,
including my PT Gyro.

BillF
billf is offline  
Reply With Quote
Old 03-27-2007, 09:49 AM
  #7  
floridagyro
Senior Member
Thread Starter
 
floridagyro's Avatar
 
Join Date: Feb 2002
Location: Wimauma, FL
Posts: 511
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Begi Autogyro Kit

Hi Bill,

Yes, it's electric. I'm using the Himax 2812-0850 Brushless Outrunner motor. Lots of power and the APC 10X3.8 prop makes it loud. I just returned from the field this morning after several more flights and lots of touch-and-go. The pre-rotator works really nice and gets the gyro in the air quickly. You should try one. I think you would like it.

Some place in Wisconsin made the news here as it was 83 degrees yesterday.

How is that twin gyro with the rotating booms doing?

I think you have a winner there.

Phil
floridagyro is offline  
Reply With Quote
Old 03-27-2007, 08:27 PM
  #8  
nightnav
Member
My Feedback: (2)
 
Join Date: Jan 2003
Location: Claymont, DE
Posts: 31
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Begi Autogyro Kit

Hi Phil,
The BEGi looks great! Very nice job flying! Are those high-tension wires as close as they look in the video?
I just took delivery of one of Mickey’s G3P0s. I went with the pre-rotator as well.

BTW
I did receive the info on Little Manatee Springs.
Thank you,
Frank
nightnav is offline  
Reply With Quote
Old 03-27-2007, 09:09 PM
  #9  
floridagyro
Senior Member
Thread Starter
 
floridagyro's Avatar
 
Join Date: Feb 2002
Location: Wimauma, FL
Posts: 511
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Begi Autogyro Kit

Hi Frank,

The power wires are not as close as they look in the video but I have tangled with them a few times but not with a gyro. I'm just starting to get confortable with this gyro but the problem has been the wind. We're getting 20 plus mph winds everyday so my flying is pretty limited. Just when I think the winds have died down I go up and as usual the winds pick up also then I just worry about getting back down in one piece.

We'll be interested in your opinion of Mickey's gyro. You'll love that pre-rotator.

When are you moving to Florida? It's too cold up there.

Phil
floridagyro is offline  
Reply With Quote
Old 03-29-2007, 11:07 AM
  #10  
nightnav
Member
My Feedback: (2)
 
Join Date: Jan 2003
Location: Claymont, DE
Posts: 31
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Begi Autogyro Kit

Hi Phil,
I'm waiting for a few parts to arrive but once they get here it should go together quickly. I have the head together but have not yet made the mods for the pre-rotator. I'll let you know how it all works out.
Not sure when we will make the move to Florida, still a lot of items to sort out.
Frank
nightnav is offline  
Reply With Quote
Old 03-29-2007, 06:43 PM
  #11  
floridagyro
Senior Member
Thread Starter
 
floridagyro's Avatar
 
Join Date: Feb 2002
Location: Wimauma, FL
Posts: 511
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Begi Autogyro Kit

Frank, I think you will like that little gyro. I'm flying Begi in the park now and space is pretty limited. I did a little demo for some of the residents and as you will see, not much room. It's not in the video but I came a lot closer to one of the trees than I really wanted to.

Anyhow, here are a couple more videos flying in the park. The pictures are the same but the videos are different.

http://www.auav.net/sh/begilms.html

Phil

floridagyro is offline  
Reply With Quote
Old 03-29-2007, 08:06 PM
  #12  
mnowell129
Senior Member
 
Join Date: Aug 2004
Location: longwood, FL
Posts: 469
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Begi Autogyro Kit

Phil,
Looks like you've found how well BEGi flies low and slow in a small area.
mickey
mnowell129 is offline  
Reply With Quote
Old 03-30-2007, 07:06 AM
  #13  
rcflyerfl
My Feedback: (1)
 
Join Date: Dec 2001
Location: Lakeland, FL
Posts: 838
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Begi Autogyro Kit

Phil,
Nice little flying site for small Autogyro's.

Jim
rcflyerfl is offline  
Reply With Quote
Old 03-30-2007, 08:35 AM
  #14  
floridagyro
Senior Member
Thread Starter
 
floridagyro's Avatar
 
Join Date: Feb 2002
Location: Wimauma, FL
Posts: 511
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Begi Autogyro Kit

Hi,

Yes, the Begi is an amazing gyro. It's the only thing that I bring to the field now for a couple of reasons. It gets a lot of attention and I can taxi out on the runway and takeoff and land, like the big boys. If you want to fly slow or hotdog around it does both very well. The rudder response is incredible.

The swashplate type control responds much faster than a flapping blade design, no question. It appears to be more efficient but perhaps that's due to the power to weight ratio, not sure.

Mickey, perhaps can explain how increase lift is created by the rotor blades in a swashplate control vs. a tilting head.

Also, how does handling compare between your three gyro designs?

Paul Tradelius, who writes the helicopter column for Model Airplane news and a member of our club made a few comments about Begi. I think he liked it?

Phil
floridagyro is offline  
Reply With Quote
Old 03-30-2007, 10:42 AM
  #15  
mnowell129
Senior Member
 
Join Date: Aug 2004
Location: longwood, FL
Posts: 469
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Begi Autogyro Kit

What I set out to do was make a completely functional aircraft so you can
do what you describe, taxi out on the runway, takeoff and land like the big boys.
I got my first model to fly and land, but only hand launch. I didn't quit until
I solved all the ground handling problems and takeoff reliably. Then the pre-rotator stopped all
the hand spinning business so I didn't have to walk out into the runway and
hand spin to takeoff (this was kind of embarassing at my field).

Interesting comment on the swashplate vs flapping head as to control response.
BEGi does have pretty good control response.

I don't know it the extra lift is attributable to the swashplate as much as
other design factors. The blades are probably the optimum aspect ratio.
The blade tip speed is high, this alone makes the rotor very efficient.
Also due to the method that the blades are attached, they can't change
pitch while flying. This makes things more efficient.
I tried to argue that this was important, having the
blade be sandwiched between the blade holders, not just bolted on top,
but it fell on deaf ears so I gave up. Also the blades
having CG correction makes them run true, also increasing the efficiency.

BEGi is the liveliest flier. And BEGi can turn on a dime with just rudder.
G3PO is just about as agile as BEGi but is more
directionally stable in a cross wind, and handles better on the ground.
GT17 is the most stable and easiest for the beginner to fly.

I'm glad you're having fun with it.

I'd be interested in hearing Paul's comments.
mnowell129 is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service