Cox Engines Forum
You are not logged in! Please login or register.

Logged in members see NO ADVERTISEMENTS!


rodd - "Rodd-O-Gyro" - Page 3 Cox_ba12




rodd - "Rodd-O-Gyro" - Page 3 Pixel

Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» Duende V model from RC Model magazine 1983.
by TD ABUSER Today at 7:20 pm

» Roger Harris revisited
by rsv1cox Today at 10:46 am

» A Little 400 Mile Hop for Some Memory Lane Stuff, and to Hit a Swap Meet.
by getback Today at 7:48 am

» Free Flight Radio Assist
by getback Today at 6:39 am

» Happy 77th birthday Andrew!
by Kim Yesterday at 9:18 am

» Promote the forum with flyers!
by Admin Yesterday at 1:35 am

» Engine choice
by GallopingGhostler Mon Nov 25, 2024 4:03 pm

» My N-1R build log
by roddie Mon Nov 25, 2024 9:19 am

» Night flying at Walters RC park
by 1975 control line guy Sun Nov 24, 2024 7:29 pm

» Cox films/videos...
by GallopingGhostler Sun Nov 24, 2024 7:07 pm

» Cox 020 PeeWee rebuild questions
by LooseSpinner99 Sun Nov 24, 2024 6:13 pm

» Did you spot the Cox engine in this NASA research video?
by balogh Sun Nov 24, 2024 5:08 pm

Cox Engine of The Month
November-2024
Kim's

"A Space Bug Jr. pulls the Q-Tee up high over Sky Tiger Field"



PAST WINNERS
CEF Traveling Engine

Win This Engine!
Gallery


rodd - "Rodd-O-Gyro" - Page 3 Empty
Live on Patrol


"Rodd-O-Gyro"

Page 3 of 3 Previous  1, 2, 3

Go down

rodd - "Rodd-O-Gyro" - Page 3 Empty Re: "Rodd-O-Gyro"

Post  Brenda Fri May 01, 2015 10:24 pm

roddie wrote:My wife (God bless her soul..) comes down into my workshop and notices the Rodd-O-Gyro for the first time.. "What's this"? she asks.. "Oh.. just something I've been working on" I reply.. She picks it up.. and exclaims.. "it's heavy"... Shocked Shocked Shocked Laughing (thanks for the words of encouragement hon..) Rolling Eyes

You out to prove bricks can fly if you apply enough thrust? lol!
Brenda
Brenda
Bronze Member
Bronze Member

Posts : 58
Join date : 2014-10-06
Age : 53

Back to top Go down

rodd - "Rodd-O-Gyro" - Page 3 Empty Re: "Rodd-O-Gyro"

Post  roddie Sat May 02, 2015 10:48 am

Brenda wrote:
roddie wrote:My wife (God bless her soul..) comes down into my workshop and notices the Rodd-O-Gyro for the first time.. "What's this"? she asks.. "Oh.. just something I've been working on" I reply.. She picks it up.. and exclaims.. "it's heavy"... Shocked Shocked Shocked Laughing (thanks for the words of encouragement hon..) Rolling Eyes

You out to prove bricks can fly if you apply enough thrust? lol!

Were you and I ever married? Laughing

I got some odds and ends done over the last day or two. The gear struts were just pre-bent ones I had for the previous photos.. and were 5/64" (.078") music-wire. I bent-up a new gear of 1/16" (.062") wire and cut 1/16" ply-bracing for mounting to the firewall. This will make it easier for bushing the wheels I plan to use.

rodd - "Rodd-O-Gyro" - Page 3 5-1-1510
rodd - "Rodd-O-Gyro" - Page 3 5-1-1511
rodd - "Rodd-O-Gyro" - Page 3 5-1-1512
roddie
roddie
Top Poster
Top Poster

2024 Supporter

Posts : 8816
Join date : 2013-07-17
Age : 64
Location : N. Smithfield, Rhode Island

http://www.stilburnin.com

Back to top Go down

rodd - "Rodd-O-Gyro" - Page 3 Empty Re: "Rodd-O-Gyro"

Post  Oldenginerod Sat May 02, 2015 11:01 pm

roddie wrote:
The rotor-blades..  Huh...  Here is where I'm unsure when using conventional propellers; whether to mount them facing into the airstream.. or away from it. My thinking is; to orient them where they will be "more" resistant to turning. This may seem to be a strange approach.. but I want them to "catch" the wind at a given AOT to provide lift. I don't know whether facing toward or away will create the most resistance in a freewheeling configuration... or whether the contra-rotating props will even work. I've tried to design this thing to easily try an infinite number of configurations. It only needs to become airborne.. and I'll consider it a success.
I'll probably end-up with a tether-car!! lol!

The rotor blades are wings, so to gain the most lift they need to have the convex side facing up to provode lift.  It's not the pitch of the blade that provides lift, but the airfoil (aerofoil in my language) section as it passes through the air.  The lower side, being concave, would make better use of the airflow to be able to spin the "wing" through the air at maximum speed, providing the greatest lift from the airfoil section.  So Roddie, from your pictures, I would suggest that the rotors would be far more efficien in providing lift if turned over the other way.

Rod.
Oldenginerod
Oldenginerod
Top Poster
Top Poster

Posts : 4019
Join date : 2012-06-15
Age : 62
Location : Drouin, Victoria

Back to top Go down

rodd - "Rodd-O-Gyro" - Page 3 Empty re-visit

Post  roddie Sun May 14, 2017 3:31 pm

Now that I have some parts to assemble more reed-valve engines.. I hope to get back to this project. I'd gotten a lot of it built... when I was avidly working on it last. I'm not going to fuss much further with my unproven theories. I need to try to balance it for a C/L lead-out connection.. and see if I can get it off the ground. Stay-tuned.. Laughing
roddie
roddie
Top Poster
Top Poster

2024 Supporter

Posts : 8816
Join date : 2013-07-17
Age : 64
Location : N. Smithfield, Rhode Island

http://www.stilburnin.com

Back to top Go down

rodd - "Rodd-O-Gyro" - Page 3 Empty Challenge auto-gyro

Post  roddie Fri Apr 10, 2020 7:58 pm

I've been thinking about model-projects started.. and stalled. Wanting to re-start some. Smile Thought I'd revisit this design. Then I had another thought.. Shocked  Maybe you'd like to join me in an obscure experiment in U-control auto-gyro design!! Eyebrows Eyebrows

It's unfamiliar territory.. ripe for more experimentation by brilliant minds like ours..  Very Happy

Look!



I want that plan/lay-out for one of my COX ENGINES!!! Small Cox Logo
roddie
roddie
Top Poster
Top Poster

2024 Supporter

Posts : 8816
Join date : 2013-07-17
Age : 64
Location : N. Smithfield, Rhode Island

http://www.stilburnin.com

Back to top Go down

rodd - "Rodd-O-Gyro" - Page 3 Empty Re: "Rodd-O-Gyro"

Post  rsv1cox Sat Apr 11, 2020 7:05 am

Top of the page, my first thought...……..Brenda's back. But no, May 2015.

Enjoyed the video. Wonderful, flat terrain, plenty of room, distant trees. Not West Virginia.

rsv1cox
rsv1cox
Top Poster
Top Poster

2022 Supporter

2023 Supporter

2024 Supporter

Posts : 11260
Join date : 2014-08-18
Location : West Virginia

Back to top Go down

rodd - "Rodd-O-Gyro" - Page 3 Empty Re: "Rodd-O-Gyro"

Post  Ken Cook Sat Apr 11, 2020 9:05 am

Roddie, somewhere amongst the items I have hoarded, there's a gyro article that uses the crankcase and crank of a Cox .049 for the rotor blades. I will take a look and see if I can post them. Since I've been on Coronacation, I've been just throwing things out left and right so I hope I didn't toss them. I have saved so many plans and boxes of models I've built, for years. I opened up the bag and dumped it all to make room in a double closet that stored this stuff. When do you really know that you've owned something long enough? Planes that were wrecked that have been sitting in the corner, well they went too. Sad, but I have to make room for the new.
Ken Cook
Ken Cook
Top Poster
Top Poster

Posts : 5644
Join date : 2012-03-27
Location : pennsylvania

Back to top Go down

rodd - "Rodd-O-Gyro" - Page 3 Empty Re: "Rodd-O-Gyro"

Post  Cribbs74 Sat Apr 11, 2020 10:11 am

Well done Ken, it sometimes isn’t any fun throwing things away, but you are better off in the long run.

Nice video Roddie, that thing actually flys really well for what it is.
Cribbs74
Cribbs74
Moderator

2022 Supporter

2023 Supporter

2024 Supporter

Posts : 11907
Join date : 2011-10-24
Age : 50
Location : Tuttle, OK

Back to top Go down

rodd - "Rodd-O-Gyro" - Page 3 Empty That's Cool

Post  akjgardner Sat Apr 11, 2020 11:04 am

Thats Pretty Cool Roddie, I'd line to make an RC one
akjgardner
akjgardner
Diamond Member
Diamond Member

2023 Supporter

2024 Supporter

Posts : 1603
Join date : 2014-12-28
Age : 65
Location : Greensberg Indiana

Back to top Go down

rodd - "Rodd-O-Gyro" - Page 3 Empty Cox Apache Rotor

Post  roddie Sun Oct 06, 2024 11:33 pm

So.............. (cough cough..) dust on this thread.. K..... I've done nothing outside of peering into a parts-bag at my design; on and off.. for the last how-many years?

No matter.. This is how projects put on the back-burner... get heated-up.

I have a Cox Apache replacement rotor-blade coming from Bernie (Canada)

rodd - "Rodd-O-Gyro" - Page 3 Apache10

and it's going to be slipped-into the Rodd-O-Gyro Bag... to be dealt with at my discretion... Neutral I'm wondering about an RTP app. I SoOoOo want to do an RTP thing...
roddie
roddie
Top Poster
Top Poster

2024 Supporter

Posts : 8816
Join date : 2013-07-17
Age : 64
Location : N. Smithfield, Rhode Island

http://www.stilburnin.com

Back to top Go down

rodd - "Rodd-O-Gyro" - Page 3 Empty Re: "Rodd-O-Gyro"

Post  GallopingGhostler Mon Oct 07, 2024 12:19 am

How about a variation of https://outerzone.co.uk/plan_details.asp?ID=14730 RO49 Autogyro by John Stroud from Aeromodeller July 1981, 20in span (IC - .049) (C/L)

rodd - "Rodd-O-Gyro" - Page 3 14730v10
Outerzone photo.

rodd - "Rodd-O-Gyro" - Page 3 00313
Outerzone photo.
GallopingGhostler
GallopingGhostler
Top Poster
Top Poster

2023 Supporter

Posts : 5735
Join date : 2013-07-13
Age : 70
Location : Clovis NM or NFL KC Chiefs

Back to top Go down

rodd - "Rodd-O-Gyro" - Page 3 Empty Re: "Rodd-O-Gyro"

Post  Oldenginerod Mon Oct 07, 2024 4:54 am

Remember Blackhawk Models Kellett Autogiro?  Brenda posted these videos years back. Looks to fly pretty good!!
Oldenginerod
Oldenginerod
Top Poster
Top Poster

Posts : 4019
Join date : 2012-06-15
Age : 62
Location : Drouin, Victoria

Back to top Go down

rodd - "Rodd-O-Gyro" - Page 3 Empty Re: "Rodd-O-Gyro"

Post  Sponsored content


Sponsored content


Back to top Go down

Page 3 of 3 Previous  1, 2, 3

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum