Cox Engines Forum
You are not logged in! Please login or register! Guests are limited to posting in the "General Questions (Guest Posting Allowed)" section only. Becoming a member is fast, easy and FREE!


Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» Laying off building planes for a while.
by batjac Today at 2:35 am

» WTB driven gear(s)
by Jason_WI Yesterday at 11:28 pm

» Hey BOB, there's a market for your Enya's
by GallopingGhostler Yesterday at 10:44 pm

» Cox P-40 Parts
by crankbndr Yesterday at 7:05 pm

» 5 Sure Start Engine Radial
by getback Yesterday at 10:04 am

» Cox .01 /.02 /.05 Engines & Mods / Nano Speed Planes
by 1/2A Nut Fri Oct 19, 2018 9:32 pm

» High Performance Cox tools by Bob Oge
by roddie Fri Oct 19, 2018 9:08 pm

» Recent engine acquisitions
by KariFS Fri Oct 19, 2018 4:37 pm

» Shuriken cylinder with piston for sale
by ukanduit Fri Oct 19, 2018 3:07 pm

» Sterling 36-inch RTF CL P-51 Mustang w/Cox .15 Sportsman
by Ken Cook Fri Oct 19, 2018 2:42 pm

Cox Engine of The Month
October-2018
Mudhen's

"Prototype T.D. .010 c.1960"



PAST WINNERS
Speed Contest 2018
CEF Traveling Engine

Win This Engine!
The Traveling Prop
Gallery


World of Aviation

How do you make a spad for a cox 049

Go down

How do you make a spad for a cox 049

Post  Mad monkey on Tue Apr 15, 2014 1:13 pm

In the previous topic i asked questions about the tee dee 049 and i would be pleased if someone could tell me if a cox tee dee crank shaft can tolerate a diesel head or break.

Anyway i would like to build a plane for it. I would like to build a spad. I was thinking a pylon racer but i can't seem to find the info i need so could someone pls give me dimensions it would be great but i would also like to see 1/2a planes you have built, pylon racers or not .

Thanks i advance
Ben.D
avatar
Mad monkey
Guest


Back to top Go down

Re: How do you make a spad for a cox 049

Post  John's Pop on Sun Apr 26, 2015 10:33 pm

You'll probably want to head over to spadworld.net and check out the Lil Ones section. They've done pretty much everything you can do with 1/2a. Be prepared to trim, trim, trim the weight and trim some more. Some really interesting stuff though. :-)
avatar
John's Pop
Beginner Poster
Beginner Poster

Posts : 9
Join date : 2012-07-22
Age : 52
Location : Georgia

View user profile

Back to top Go down

Re: How do you make a spad for a cox 049

Post  pkrankow on Mon Apr 27, 2015 7:34 am

The tee dee has been dieseled before.  I have seen a number of examples in photo.  I do not think there was a different crank.

I would guess you have looked here
http://spadtothebone.net/
I didn't see 1/2a listed.

Try outerzone
http://outerzone.co.uk/
a search for pylon brings back many hits. Quite a few are 1/2a. Of course none are plastic, so the lines are all you are getting.

On the Balsa Beavers website
http://balsabeavers.com/
under information is the PT-19 in plastic

The biggest challenge is you are going to be limited by the material weight.  Larger fluted plastic builds work well because of large internal volume making the wing loading manageable.  With small builds there is little internal volume so the wing loading become much higher than reasonable.  Consider foam wings with a spar instead of fluted plastic wings.

Phil
avatar
pkrankow
Diamond Member
Diamond Member

Posts : 2965
Join date : 2012-10-02
Location : Ohio

View user profile

Back to top Go down

Re: How do you make a spad for a cox 049

Post  ian1954 on Mon May 04, 2015 4:48 am

I have several TD Diesels and have not managed to break the crank.

The weak spot on the TD is the con rod - I have broken these and had them puncture the crank case.

Bee crankshafts are a lot more fragile - even the heavy duty versions.

All due to careless flooding on my part!

https://www.coxengineforum.com/t5432-dieselised-cox-engines



avatar
ian1954
Diamond Member
Diamond Member

Posts : 2425
Join date : 2011-11-16
Age : 64
Location : England

View user profile

Back to top Go down

Re: How do you make a spad for a cox 049

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top

- Similar topics

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