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Cox Engine of The Month
May-2024
1/2A Nut's

"Cox Tee Dee .051 RC Marine"



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Post  Greenman38633 Sat Mar 30, 2024 10:40 am

Not much info about this plane on this forum that I can find. I bought this a couple of months ago. It has a foam wing and is very lite weight. I was thinking about buying the Hyper Viper but this has less total wing area and the wings are swept back , not straight like the Hyper Viper. I’ll post exact weight and dimensions tonight Before I fly it I was hoping to get some info on it from the Cox community. Any takers ? Thanks. Mark Green. Pictures to follow
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Post  Greenman38633 Sat Mar 30, 2024 10:48 am

Cox Crusader Stunt trainer 08eb8a10
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Cox Crusader Stunt trainer 6e202010
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Post  Greenman38633 Sat Mar 30, 2024 10:49 am

The decals make it look much more airplane looking. Hehehe
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Post  Greenman38633 Sun Mar 31, 2024 6:54 pm

Ok here are more pictures with the decals on. It only weighs 6.4 ounces
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Post  Greenman38633 Sun Mar 31, 2024 6:56 pm

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Cox Crusader Stunt trainer 755be410
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Post  Greenman38633 Sun Mar 31, 2024 6:59 pm

But notice how big the elevators are Huge compared to other Cox planes. It should be extremely maneuverable. We will see if I can do some loops with it
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Post  Greenman38633 Sun Mar 31, 2024 7:00 pm

Cox Crusader Stunt trainer 02850410
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Post  GallopingGhostler Sun Mar 31, 2024 10:08 pm

Apparently you have a rarer one there, @Greenman38633. One more familiar would be Larry Renger, who was a Cox product development engineer (don't know his official title). He posts on Stunt Hangar occasionally still. He was as far as I know, involved with those.

Cox in the product line had a Dehavilland Chipmunk Super Stunter ARTF, and your looks like it was a part of that same series. I think they had an ME-109 also.

After, they marketed a universal wing kit after, based on this series. One would build a profile balsa fuselage, of which they had a couple templates of.

Some links:
https://www.coxengineforum.com/t14811-cox-super-chipmunk-fuselage-wing-or-kit
https://www.coxengineforum.com/t16482-cox-fw-190-wing-has-anyone-reproduce-it
https://www.coxengineforum.com/t11746-cox-super-stunter-balsa-build-40-years-later

By the way, nice restoration of a not oft seen Cox ARTF. Thumbs Up
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Post  HalfaDave Sun Mar 31, 2024 11:51 pm

Hi Greenman,
That has to be very rare,
At 6.4oz it somehow has a swept hollow foam Cox wing.
Looks like a 'Crusader Jet' to me.
If it was advertised by Cox in the day,
I would have bought one.
Ask Larry Renger, before flying it.
It could be very, very, rare.
Take care,
Have fun,
Dave
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Post  HalfaDave Mon Apr 01, 2024 2:28 am

Hi Greenman,
How do the leadout lines hook up to the nicely rivet detailed all flying stab?
Do the rivets help doing loops?
Cox fans want to know.
And is the canopy a tank hatch?
That is nice first for a Cox control line plane.
You can answer after noon, today. Smile
Take care,
Have fun,
Dave


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Post  Ken Cook Mon Apr 01, 2024 4:18 am

Elevator size doesn't correspond with maneuverability. I don't think that the plane would be maneuverable at all. It's heavy, the controls more than likely are far too fast which will cause the plane to stall and the trike gear is going to be very draggy. Cox only produced less than a handful of models that were per say maneuverable and even those were a grasp at that.
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Post  rsv1cox Mon Apr 01, 2024 7:29 am

That's a new one on me and I would have second thoughts about flying it, big risk of a bad landing or crash with this rare example. Did that large Cox decal come with it or is it after-market? I have that exact same decal in a reproduction. It looks a lot like my Gilbert Skystreak.
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Post  Greenman38633 Mon Apr 01, 2024 10:02 am

Hello Bob. Yes the decal I spotted on EBay and picked it up. I like to customize my stuff a little bit. Hehehe 😜
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Post  Greenman38633 Mon Apr 01, 2024 10:07 am

Hello Ken Cook. Thanks for weighing in on this. As far as weight is concerned it’s only 6.4 ounces. I will fly it carefully you can be sure and I will carefully explore its flight envelope. If I can see it is sluggish in its maneuvers then I won’t try it. But if it looks like a matter of not having enough power then that’s a easy fix
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Post  Greenman38633 Mon Apr 01, 2024 10:09 am

Hello Dave. I’ll take some more pictures tonight to reveal more of its hidden secrets 😆😆😉
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Post  Greenman38633 Mon Apr 01, 2024 10:12 am

Hello Galloping Ghostler. I will certainly try to contact Him. I would prefer All the information I can get. Thanks
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Post  Greenman38633 Tue Apr 02, 2024 4:22 am

Here is the fuel tank under the canopy. It appears to have a self sealing vent for inverted flight
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Post  Greenman38633 Tue Apr 02, 2024 4:23 am

Cox Crusader Stunt trainer 5f35e710
Cox Crusader Stunt trainer 50f19310
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Post  Greenman38633 Tue Apr 02, 2024 4:25 am

Cox Crusader Stunt trainer Eb23cb10
Cox Crusader Stunt trainer 40d5c710
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Post  HalfaDave Fri Apr 05, 2024 4:23 pm

Hi Greenman,
Thanks for the extra photos...
Very cool Cox product I have never seen. Cool
This is why I like CEF here!
I doubt the 'flying stab' will need much throw.
The tank/hatch/streamlined NV is very interesting !
With 'swept wings' it looks nose heavy to me.
Where is the CG ?
Take care,
Have fun,
Dave
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Post  Greenman38633 Fri Apr 05, 2024 8:14 pm

Dave. Actually it seems a little tail heavy but I’ll have to carefully figure out the CG on this one because of the swept wing. If it was a straight wing I would just balance it at 20% of the cord of the wing from the front
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Post  Greenman38633 Fri Apr 05, 2024 8:22 pm

Thanks Bob for the link of another Crusader
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