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Cox Engine of The Month
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020 Glow Heads
Page 1 of 1
020 Glow Heads
John Goddard Wed Apr 18, 2012 8:25 am
Anyone know anything about the above?
Reason is I've got a couple Pee Wees and TD's with slightly differing heads but..
Young Fred from Texas kindly sent me two old TD (I think) types which are
knurled like the bigger TD's are and have an earth shattering 48 cents
price tag.
Anyone else familiar with them?
J
Reason is I've got a couple Pee Wees and TD's with slightly differing heads but..
Young Fred from Texas kindly sent me two old TD (I think) types which are
knurled like the bigger TD's are and have an earth shattering 48 cents
price tag.
Anyone else familiar with them?
J
John Goddard- Diamond Member
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Join date : 2011-11-24
Age : 59
Location : Leyton North East London
Re: 020 Glow Heads
microflitedude Wed Apr 18, 2012 8:40 am
Yep, the knurling was an early idea. Not high compression like I originally thought.
microflitedude- Top Poster
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Re: 020 Glow Heads
fredvon4 Wed Apr 18, 2012 8:40 am
packages I sent John had Cox on front
COX
29 10320: .90
on back of card and a store stick on price tag of $.48
COX
29 10320: .90
on back of card and a store stick on price tag of $.48
fredvon4- Top Poster
Posts : 4001
Join date : 2011-08-26
Age : 68
Location : Lampasas Texas
Re: 020 Glow Heads
nitroairplane Wed Apr 18, 2012 8:48 am
Knurling was present on all early 020 heads and on no later .020 heads.
The only difference between pee wee and tee dee heads was the combustion chamber volume and size.
Only visible from the inside.
The only difference between pee wee and tee dee heads was the combustion chamber volume and size.
Only visible from the inside.
nitroairplane- Top Poster
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Join date : 2011-04-11
Location : London -
Re: 020 Glow Heads
John Goddard Wed Apr 18, 2012 8:49 am
Slight 'problem' now Fred...
They look so nice I think they're gonna stay in their packets.
AAAAAAAAAAAAAAAAAAAAAArgh I think I'm have become a collector..........................................
They look so nice I think they're gonna stay in their packets.
AAAAAAAAAAAAAAAAAAAAAArgh I think I'm have become a collector..........................................
John Goddard- Diamond Member
- Posts : 2447
Join date : 2011-11-24
Age : 59
Location : Leyton North East London
Re: 020 Glow Heads
nitroairplane Wed Apr 18, 2012 9:04 am
Take one out and leave one inJohn Goddard wrote:Slight 'problem' now Fred...
They look so nice I think they're gonna stay in their packets.
AAAAAAAAAAAAAAAAAAAAAArgh I think I'm have become a collector..........................................
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Join date : 2011-04-11
Location : London -
Re: 020 Glow Heads
John Goddard Wed Apr 18, 2012 9:13 am
I've been having a bit of a play around with a TD Indra
I think pound for pound it may be the most impressive
Cox I've yet run up. I think the 051 is vast but it is
Twice the size.
Any idea when they switched? I've got early Seventies
And they have the smooth type.
I think pound for pound it may be the most impressive
Cox I've yet run up. I think the 051 is vast but it is
Twice the size.
Any idea when they switched? I've got early Seventies
And they have the smooth type.
John Goddard- Diamond Member
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Join date : 2011-11-24
Age : 59
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Re: 020 Glow Heads
Ivanhoe Wed Apr 18, 2012 9:14 am
John Goddard wrote:Slight 'problem' now Fred...
They look so nice I think they're gonna stay in their packets.
AAAAAAAAAAAAAAAAAAAAAArgh I think I'm have become a collector..........................................
I have this problem occasionally (Not that I get much NIP stuff) but then I think "These things were meant to FLY, not sit in a museum!"
Ivanhoe- Diamond Member
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Join date : 2011-09-30
Location : Northern Ireland
Re: 020 Glow Heads
John Goddard Wed Apr 18, 2012 9:32 am
I'm sort of torn between the 2 poles Wilf.
Happily/tragically my lovely new in box stuff
Is gradually getting fired up.
As one of the 'usual suspects' said to me
Recently "John, I love guys like you because you're
Steadily increasing the value of my 'never will be run'
Stuff".
Happily/tragically my lovely new in box stuff
Is gradually getting fired up.
As one of the 'usual suspects' said to me
Recently "John, I love guys like you because you're
Steadily increasing the value of my 'never will be run'
Stuff".
John Goddard- Diamond Member
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Join date : 2011-11-24
Age : 59
Location : Leyton North East London
Re: 020 Glow Heads
microflitedude Wed Apr 18, 2012 9:58 am
I have opened several OEM packages and used the parts. Some very old. 
Last edited by microflitedude on Wed Apr 18, 2012 10:17 am; edited 1 time in total
microflitedude- Top Poster
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Age : 26
Location : Columbia, SC -
Re: 020 Glow Heads
Cribbs74 Wed Apr 18, 2012 10:03 am
John!
Snap out of it!
Lol, I just opened up a NIP .020 with knurled head the the other day. Thanks Joe!
Snap out of it!
Lol, I just opened up a NIP .020 with knurled head the the other day. Thanks Joe!
Cribbs74- Moderator
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Re: 020 Glow Heads
Cribbs74 Wed Apr 18, 2012 10:17 am
Value is a funny thing......
Monetarily yes, NIP has more value. However, the real value is to those who get to play with it.
Monetarily yes, NIP has more value. However, the real value is to those who get to play with it.
Cribbs74- Moderator
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Posts : 11895
Join date : 2011-10-24
Age : 50
Location : Tuttle, OK
Re: 020 Glow Heads
Ivanhoe Wed Apr 18, 2012 11:03 am
cribbs74 wrote:Value is a funny thing......
Monetarily yes, NIP has more value. However, the real value is to those who get to play with it.
It's the difference between price and value, as someone said to me once "Price is what someone is stupid enough to pay for it, value is what it's really worth!"
Ivanhoe- Diamond Member
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Join date : 2011-09-30
Location : Northern Ireland
Re: 020 Glow Heads
ahrma_581 Wed Apr 18, 2012 12:50 pm
Is the TD 020 head noticeably trumpet shaped? I can remember (from the 60's) buying some glowheads that were, and thought it was all TD's.
But then recently I got back into planes and bought a TD 051. The head (and spare I got from Bernie) was more or less hemispherical.
Maybe I'm just imaging things??
But then recently I got back into planes and bought a TD 051. The head (and spare I got from Bernie) was more or less hemispherical.
Maybe I'm just imaging things??
ahrma_581- Gold Member
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Join date : 2012-03-21
Location : Sonoran desert
Re: 020 Glow Heads
Cox International Wed Apr 18, 2012 2:37 pm
As was correctly pointed out, Cox in later years did away with the TD version and used the regular heads on Tee Dee and Pee Wee.
The .020 heads we manufactured are somewhere in between TD and PW in regards to the combustion chamber shape. Reports show that they increase the RPM on a PW over stock head.
On the TD they also increase RPM compared to non-TD heads and compare favourably to the old TD heads.
The .020 heads we manufactured are somewhere in between TD and PW in regards to the combustion chamber shape. Reports show that they increase the RPM on a PW over stock head.
On the TD they also increase RPM compared to non-TD heads and compare favourably to the old TD heads.
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