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Cox Engine of The Month
Testors 4800 BD-5 Jet
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Testors 4800 BD-5 Jet
Does anyone know or have any information on a plastic U-control model that Testors made #4800? Looks like it had a small cox engine installed. I can't find any information or photos anywhere.
Thanks for your help.
Dino
Thanks for your help.
Dino
Re: Testors 4800 BD-5 Jet
here's a pic of one I was interested in you said cox engine on a testors ?? http://www.worthpoint.com/worthopedia/testors-bd-control-line-airplane-52819223 I just googled it , what kind of info are you looking for ? , to the Forum DINO !!
getback- Top Poster
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Re: Testors 4800 BD-5 Jet
It will have a Testors "Pipe Bomb" engine like this.
They used a prop shaft extension much like a boat drive shaft to the prop.
Rod.
They used a prop shaft extension much like a boat drive shaft to the prop.
Rod.
Oldenginerod- Top Poster
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Re: Testors 4800 BD-5 Jet
Thanks,
I saw one that I found on Google which was #4880 and white. Looks much newer than the one I have.
Mines pretty busted up but its clear. Well it was clear at one point. Now more of a yellow tint from age.
Surprised that there's not much information about it that I can find. Manual, year of manufacture, sales brochure or ad.
Just wondering the history of this model. Thanks for your input!
I saw one that I found on Google which was #4880 and white. Looks much newer than the one I have.
Mines pretty busted up but its clear. Well it was clear at one point. Now more of a yellow tint from age.
Surprised that there's not much information about it that I can find. Manual, year of manufacture, sales brochure or ad.
Just wondering the history of this model. Thanks for your input!
Re: Testors 4800 BD-5 Jet
Welcome to CEF, Iceman.
Rusty
Rusty
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
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Re: Testors 4800 BD-5 Jet
Mark Boesen runs .049 Collectors group, he has these photos. James Bond flew em!!
https://groups.yahoo.com/neo/groups/049Collectors/info
https://groups.yahoo.com/neo/groups/049Collectors/info
crankbndr- Top Poster
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Location : Homestead FL
Re: Testors 4800 BD-5 Jet
Thank you. I have seen the white ones before but not the clear one as I have. Its weird. Wonder if this was a prototype or special clear edition at one point.
Re: Testors 4800 BD-5 Jet
.
Last edited by Mudhen on Mon Nov 15, 2021 11:17 am; edited 1 time in total
Mudhen- Gold Member
- Posts : 489
Join date : 2011-09-19
Re: Testors 4800 BD-5 Jet
Thank you very much for the great info.
The model is in very bad shape. The plastic is very hard and very brittle.
It has cracks and is missing a few broken pieces over the years. It would never be able to fly.
I do not think that this plastic was ever used in production either. I have had 30+ models in my hands where the plastic was still flexible.
The production kit seems to have the number 4880 on them. This has 4800
There also seems to be a film over the plastic in some areas. Sort of like PVA when we make our fiberglass fuses.
I have taped the pieces that I found in their place. I dont want to glue them. Still missing some tail pieces.
But this is all I have. :-)
Its very unusual to say the least.
I am new here, how can I post photos in the thread?
The model is in very bad shape. The plastic is very hard and very brittle.
It has cracks and is missing a few broken pieces over the years. It would never be able to fly.
I do not think that this plastic was ever used in production either. I have had 30+ models in my hands where the plastic was still flexible.
The production kit seems to have the number 4880 on them. This has 4800
There also seems to be a film over the plastic in some areas. Sort of like PVA when we make our fiberglass fuses.
I have taped the pieces that I found in their place. I dont want to glue them. Still missing some tail pieces.
But this is all I have. :-)
Its very unusual to say the least.
I am new here, how can I post photos in the thread?
Last edited by Icemanjr92 on Mon Jul 06, 2015 2:33 pm; edited 1 time in total (Reason for editing : Forgot a line)
Re: Testors 4800 BD-5 Jet
I have one of the Testors pipe bomb engines. I did not know who made this engine before I saw this post. How did this engine mount to the plane? It has a cast set of ears or slot on the off side.No drilled holes anywhere.Oldenginerod wrote:It will have a Testors "Pipe Bomb" engine like this.
They used a prop shaft extension much like a boat drive shaft to the prop.
Rod.
David S
David S- Gold Member
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Re: Testors 4800 BD-5 Jet
Would love to show you but I cant post any photos yet... Im on probation :-P
Re: Testors 4800 BD-5 Jet
David S wrote:I have one of the Testors pipe bomb engines. I did not know who made this engine before I saw this post. How did this engine mount to the plane? It has a cast set of ears or slot on the off side.No drilled holes anywhere.Oldenginerod wrote:It will have a Testors "Pipe Bomb" engine like this.
They used a prop shaft extension much like a boat drive shaft to the prop.
Rod.
David S
Testors used a "clam shell"type of mounting to hold the engine in place. See page 3 of this thread for a plane held together with just one screw!
https://www.coxengineforum.com/t8062p40-fun-with-generic-non-threatening-title#102571
As for posting pictures, you have to have a certain number of posts or length of time or something (probation?) . I can't search wile typing, but if you type" how to post pictures on forum" in a search box, you should find the easy to follow thread and instructions on what to do. Here it is........
GoTo: https://www.coxengineforum.com/t367-how-to-post-an-image-in-a-topic
Marleysky- Top Poster
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Re: Testors 4800 BD-5 Jet
Marleysky wrote:David S wrote:I have one of the Testors pipe bomb engines. I did not know who made this engine before I saw this post. How did this engine mount to the plane? It has a cast set of ears or slot on the off side.No drilled holes anywhere.Oldenginerod wrote:It will have a Testors "Pipe Bomb" engine like this.
They used a prop shaft extension much like a boat drive shaft to the prop.
Rod.
David S
Testors used a "clam shell"type of mounting to hold the engine in place. See page 3 of this thread for a plane held together with just one screw!
https://www.coxengineforum.com/t8062p40-fun-with-generic-non-threatening-title#102571
As for posting pictures, you have to have a certain number of posts or length of time or something (probation?) . I can't search wile typing, but if you type" how to post pictures on forum" in a search box, you should find the easy to follow thread and instructions on what to do. Here it is........
Thank you for the link on your P51 testors plane.I have not seen this plane.It must have been cheap to produce!
David S
GoTo: https://www.coxengineforum.com/t367-how-to-post-an-image-in-a-topic
David S- Gold Member
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Re: Testors 4800 BD-5 Jet
https://i.servimg.com/u/f18/18/06/36/59/img_7813.jpg" /> with a little help from your friends
getback- Top Poster
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Re: Testors 4800 BD-5 Jet
.
Last edited by Mudhen on Mon Nov 15, 2021 11:18 am; edited 1 time in total
Mudhen- Gold Member
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Re: Testors 4800 BD-5 Jet
I would not attempt to take it apart or clean it.
It's just too brittle. Also, the color will never get back to clear.
The age has discolored it. I may use a glue aside of CA to piece it together.
CA will haze the plastic. I'm afraid of losing the parts so I'll figure something out.
It's a pretty amazing piece. Just wish we knew exactly what it's purpose was for.
Someone who works for Testors now or then must have a vault or archive of info somewhere....
A friend of mine gave the model to me.
It's just too brittle. Also, the color will never get back to clear.
The age has discolored it. I may use a glue aside of CA to piece it together.
CA will haze the plastic. I'm afraid of losing the parts so I'll figure something out.
It's a pretty amazing piece. Just wish we knew exactly what it's purpose was for.
Someone who works for Testors now or then must have a vault or archive of info somewhere....
A friend of mine gave the model to me.
Re: Testors 4800 BD-5 Jet
Very cool!!!! I've never see this version as well, its gotta be very rare. I would do your best to preserve it, clean it up and display it out of sunlight. You might consider Testors glue (lol) on some broken parts instead of tape. If it cracked its cracked and tape or glue shouldn't really matter.
Re: Testors 4800 BD-5 Jet
Thanks Mark,
Tape is just to hold the pieces in place so I don't lose them.
I'll glue them when I figure out the best glue. Wish I had the rest of the tail pieces
but this is all I have.
It's mostly there and makes a great conversation piece!
Tape is just to hold the pieces in place so I don't lose them.
I'll glue them when I figure out the best glue. Wish I had the rest of the tail pieces
but this is all I have.
It's mostly there and makes a great conversation piece!
Re: Testors 4800 BD-5 Jet
If it's polystyrene as Mudhen suggests then most of the popular glues for building plastic (styrene) models will do the job. The Testors 3501 plastic cement should work. It actually causes the surfaces of the join to melt together, making a stronger bond than just glue that sticks one piece to another. You could test it out on one of the more damaged pieces first.
Oldenginerod- Top Poster
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Re: Testors 4800 BD-5 Jet
One thing to note is that polystyrene cement will discolour clear parts. Not as bad as cyano but still somewhat. I used to build plastic models as a kid (and will build again someday), and this often happened. Plastic modelers nowadays use white wood glue (pva) for clear parts such as canopies. Of course on a static plastic model the canopy just sits on top of the fuselage with no load so a weaker glue is OK.
You may want to try some clear epoxy, that won't react with the plastic but will stick. Epoxy also fills gaps if there are any.
That is an interesting piece you got, most likely an exhibition demonstrator, to show the unconventional power arrangement.
You may want to try some clear epoxy, that won't react with the plastic but will stick. Epoxy also fills gaps if there are any.
That is an interesting piece you got, most likely an exhibition demonstrator, to show the unconventional power arrangement.
KariFS- Diamond Member
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Re: Testors 4800 BD-5 Jet
Ill check with Frank Tiano at FTE. Maybe the Plasti zap wont create a haze like most CA's. I doubt white glue will hold.
Could this BD-5 be a one off? Id love to hear about this more if anyone knows.
Could this BD-5 be a one off? Id love to hear about this more if anyone knows.
Re: Testors 4800 BD-5 Jet
Dino this article has a contact at the bottom of the page may be worth a shot to see if there is away to get more info, http://www.referenceforbusiness.com/history2/77/The-Testor-Corporation.html that is very difft. I like Eric
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