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

Logged in members see NO ADVERTISEMENTS!


Full size Cox Proprod Cox_ba12




Cox Engines Forum

The official forum for 24/7 Cox Engines and Model Discussion! Ask Questions, Answer Questions, Discuss Cox engines, Cox products, anything CL, FF, RC, 1/2A, and more! Although memberships are encouraged, guests are always welcome!

Full size Cox Proprod Pixel

Log in

I forgot my password

Search
 
 

Display results as :
 

Rechercher Advanced Search

Latest topics
» Wen Mac .049 - Conditioning.
by MauricioB Today at 9:54 am

» How's the weather?
by HalfaDave Today at 9:34 am

» Jim Walker Firebaby
by rsv1cox Today at 8:27 am

» Enya .09 II Questions
by sosam117 Today at 8:24 am

» music vids.. some of your favorites
by crankbndr Today at 8:03 am

» Draco Goes Flying, But Misses the Eclipse
by HalfaDave Yesterday at 9:59 pm

» A prototype Cox Reed-valve marine engine
by davidll1984 Yesterday at 9:15 pm

» Happy 53rd birthday Mauricio!!!
by MauricioB Yesterday at 11:47 am

» Testers Sprite engine swap
by Greenman38633 Yesterday at 10:57 am

» UV Restore of Yellowed Decals
by Levent Suberk Yesterday at 8:59 am

» 22mm 2-blade nylon marine prop and solid-shaft drive
by roddie Yesterday at 6:46 am

» Post edit??
by roddie Yesterday at 5:33 am

Info
Cox Engine of The Month
April-2024
OVERLORD's

"Kress ducted fan with new Cox Conquest 15 RC"

PAST WINNERS
CEF Traveling Engine
Win This Engine!
Gallery


Full size Cox Proprod Empty
Live on Patrol


Full size Cox Proprod

Cox Engines Forum  :: General Discussion :: Off Topic

Go down

Full size Cox Proprod Empty Full size Cox Proprod

Post  steze48 Mon Oct 29, 2012 3:22 am

Hello all I am new to your forum but not to cox...
I grew up with the Cox control line planes and cars...
I have been into RC planes for 20 years or more and graduated to full scale ultralights...
I got a crazy idea last January and decided to go with it...
I want to build a full size Cox Proprod...(early version) the one without the prop shroud and rear wheel fairings...
I am looking for a scale drawing of the Proprod that I can scale up to around 12 FT. in length...
I will be powering it with a military surplus 4A084 industrial flat 4 engine with a pusher prop 60D X 24P.
I will start with a basic space frame of ladder construction from 1" X .049 wall 4130 round tube...
The original had rigid suspension but I plan on building upper and lower A frames for each corner with a cantilever shaft with 4 coil springs from a motorcycle which will be inside the body...
These will be covered with a fiberglass airfoil shape as on the model but separate from the body to be able to henge up and down independently as the suspension moves...
Fuel tank will be built into the bullet portion in front of the engine mount...
I believe that the canopy will be the most difficult part to reproduce to scale unless I can come across the front portion of a military surplus jet canopy...
The size of the scale will be determined by the cockpit size...
Motorcycle wheels covered with an aluminum disc inside and out
That's as far as I got without a scale drawing to work with...
I had an early proprod but gave it to my Brother years ago so I have nothing to scale from...
This is a pretty far fetched idea but I know It can be done with your help...
Thanks in advance for any help with this...

Steve
steze48
steze48
Beginner Poster
Beginner Poster

Posts : 6
Join date : 2012-10-29

Back to top Go down

Full size Cox Proprod Empty Re: Full size Cox Proprod

Post  John Goddard Mon Oct 29, 2012 4:34 am

Hi Steve
Welcome to the forum.
It sounds an excelllent idea.
I'm sure once the guys Stateside start to get up
You'll have all the info you need.
Very Happy
John Goddard
John Goddard
Diamond Member
Diamond Member

Posts : 2447
Join date : 2011-11-24
Age : 59
Location : Leyton North East London

Back to top Go down

Full size Cox Proprod Empty Re: Full size Cox Proprod

Post  steze48 Mon Oct 29, 2012 11:10 pm

John Goddard wrote:Hi Steve
Welcome to the forum.
It sounds an excelllent idea.
I'm sure once the guys Stateside start to get up
You'll have all the info you need.
Very Happy

Thank you John...If I can find out how to load a picture I would...Have a drawing I have been working on...

Steve
steze48
steze48
Beginner Poster
Beginner Poster

Posts : 6
Join date : 2012-10-29

Back to top Go down

Full size Cox Proprod Empty Re: Full size Cox Proprod

Post  mitchg95 Mon Oct 29, 2012 11:49 pm

one big baby bee would be sick....200cc?
mitchg95
mitchg95
Diamond Member
Diamond Member

Posts : 2103
Join date : 2011-12-19
Age : 28
Location : Geneva, mn, USA

Back to top Go down

Full size Cox Proprod Empty Re: Full size Cox Proprod

Post  steze48 Tue Oct 30, 2012 8:21 pm

mitchg95 wrote:one big baby bee would be sick....200cc?
LOL! Yes, It would but I already have an engine....Could build a replica giant Bee housing to surround the engine!
steze48
steze48
Beginner Poster
Beginner Poster

Posts : 6
Join date : 2012-10-29

Back to top Go down

Full size Cox Proprod Empty Re: Full size Cox Proprod

Post  WingingIt74 Tue Oct 30, 2012 8:33 pm

Your best bet would be to buy one on ebay and then reverse engineer. Besides, they would look cool side by side.
WingingIt74
WingingIt74
Top Poster
Top Poster

Posts : 3189
Join date : 2011-08-11
Age : 49
Location : Waterloo, IL

https://www.facebook.com/wingingit74/

Back to top Go down

Full size Cox Proprod Empty Re: Full size Cox Proprod

Post  steze48 Tue Oct 30, 2012 8:50 pm

WingingIt74 wrote:Your best bet would be to buy one on ebay and then reverse engineer. Besides, they would look cool side by side.

Yes...I have one on my watch list...
I have a simple drawing but did not get it to load up...Followed the directions listed here...
I'm on dial-up...Might be the problem...
Full size Cox Proprod Propro15
Steve
steze48
steze48
Beginner Poster
Beginner Poster

Posts : 6
Join date : 2012-10-29

Back to top Go down

Full size Cox Proprod Empty Re: Full size Cox Proprod

Post  WingingIt74 Tue Oct 30, 2012 9:14 pm

Boy I wish I had a CAD program, I'd sure help you out.
WingingIt74
WingingIt74
Top Poster
Top Poster

Posts : 3189
Join date : 2011-08-11
Age : 49
Location : Waterloo, IL

https://www.facebook.com/wingingit74/

Back to top Go down

Full size Cox Proprod Empty Re: Full size Cox Proprod

Post  WingingIt74 Tue Oct 30, 2012 9:24 pm

I could give you some advice, looking at your 2D drawings, the Prop Rod resembles a Belly Tanker (aka Belly Tank Streamliner or Belly Tank Lakester).

Full size Cox Proprod So-cal-belly-tank

I would suggest to do some research on Belly Tankers and go from there to make a full-size Prop Rod.

Full size Cox Proprod Attachment


Last edited by WingingIt74 on Tue Oct 30, 2012 9:40 pm; edited 2 times in total
WingingIt74
WingingIt74
Top Poster
Top Poster

Posts : 3189
Join date : 2011-08-11
Age : 49
Location : Waterloo, IL

https://www.facebook.com/wingingit74/

Back to top Go down

Full size Cox Proprod Empty Re: Full size Cox Proprod

Post  WingingIt74 Tue Oct 30, 2012 9:34 pm

WingingIt74
WingingIt74
Top Poster
Top Poster

Posts : 3189
Join date : 2011-08-11
Age : 49
Location : Waterloo, IL

https://www.facebook.com/wingingit74/

Back to top Go down

Full size Cox Proprod Empty Re: Full size Cox Proprod

Post  steze48 Tue Oct 30, 2012 10:00 pm

WingingIt74 wrote:Boy I wish I had a CAD program, I'd sure help you out.

I sorta' drew this up using paintbrush on my Macbook and looking at several Proprod photos...YES! a cad program would be great for scaling...

Steve
steze48
steze48
Beginner Poster
Beginner Poster

Posts : 6
Join date : 2012-10-29

Back to top Go down

Full size Cox Proprod Empty Re: Full size Cox Proprod

Post  steze48 Tue Oct 30, 2012 11:06 pm



Great info Wingingit! Would be a great starting point...I like the Mark II Drop Tank Shells
24" in diameter and 132.5" long for $600.00 That would be the approximate size I need...
Full size Cox Proprod Belly_10
steze48
steze48
Beginner Poster
Beginner Poster

Posts : 6
Join date : 2012-10-29

Back to top Go down

Full size Cox Proprod Empty Re: Full size Cox Proprod

Post  sdjjadk Wed Oct 31, 2012 9:03 pm

A full size Shrike / Prop Rod would be kewl! I'll be watching this one.
sdjjadk
sdjjadk
Platinum Member
Platinum Member

Posts : 640
Join date : 2012-04-07
Location : Southern Maryland

Back to top Go down

Full size Cox Proprod Empty Re: Full size Cox Proprod

Post  WingingIt74 Wed Oct 31, 2012 9:48 pm

Now you got me thinking about building one... DAMMIT!
WingingIt74
WingingIt74
Top Poster
Top Poster

Posts : 3189
Join date : 2011-08-11
Age : 49
Location : Waterloo, IL

https://www.facebook.com/wingingit74/

Back to top Go down

Full size Cox Proprod Empty Re: Full size Cox Proprod

Post  WingingIt74 Mon Nov 05, 2012 4:53 pm

You need a pusher with adjustable pitch, so you can fine tune that last bit of speed.
WingingIt74
WingingIt74
Top Poster
Top Poster

Posts : 3189
Join date : 2011-08-11
Age : 49
Location : Waterloo, IL

https://www.facebook.com/wingingit74/

Back to top Go down

Full size Cox Proprod Empty Re: Full size Cox Proprod

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top

- Similar topics

Cox Engines Forum  :: General Discussion :: Off Topic

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