Found Kosdon 1" Nozzles

[John Kemker]

Need nozzles for the 1"-35, 1"-105, 1"-200, 1"-250, 1"-310 motors.

Also need a nozzle for a 1.12"-160 casing.

 

[3stoogesrocketry]

Need nozzles for the 1"-35, 1"-105, 1"-200, 1"-250, 1"-310 motors.

Also need a nozzle for a 1.12"-160 casing.

I have all of them if you find someone to machine them, I'll pass along the throat diameters.

 

[John Kemker]

I have all of them if you find someone to machine them, I'll pass along the throat diameters.

I'll see if I can find someone. In the meantime, would you mind sending me a PM with the dimensions? OD, Groove specs, throat diameter, etc?

 

[jsdemar]

I finally got around to making the Nozzles. Here are the pics. Second from left is the original Kosdon 0.201" nozzle. I'll post a drawing for the 0.201 nozzle and the specs for the others.

 

[jsdemar]

Drawings are attached for the 1" Kosdon Nozzles.

 

[John Kemker]

VERY nice!

John has done a very good deed and made some nozzles for me. For those who bought Kosdon 1" casings from @DabCat, those are the dimensions for making your own.

AP arrives today...time to make some 1" motors!

 

[ZEDL1]

Thank you to everyone who has contributed to this Kosdon-centric thread. I miss Frank. He was a one-of-a-kind. We had some fun times together. years ago. This latest post activity brought back those thoughts.

Would anyone have information detailing the nozzles specific to his 3"M casings? One was listed as 7600 NS, and the longer casing detail I don't have close at hand at the moment, My memory isn't as good as it once was. I think that it may have been an M5100? Not sure. About 48 - 50 inches long?
I have both casings and forward closures, only the 7600 here now, but the nozzles remain missing.
Thank you for any help.
Jim

 

[jsdemar]

Thank you to everyone who has contributed to this Kosdon-centric thread. I miss Frank. He was a one-of-a-kind. We had some fun times together. years ago. This latest post activity brought back those thoughts.

Would anyone have information detailing the nozzles specific to his 3"M casings? One was listed as 7600 NS, and the longer casing detail I don't have close at hand at the moment, My memory isn't as good as it once was. I think that it may have been an M5100? Not sure. About 48 - 50 inches long?
I have both casings and forward closures, only the 7600 here now, but the nozzles remain missing.
Thank you for any help.
Jim

Here's the Kosdon 3" motor configurations. Nozzle throat is the same as the AMW 7600 nozzle. 37" liner according to AMW, but I'm not sure if Kosdon had liner overlaps on the nozzle and forward closure.

Size	Certified	Old	Burn	Burn	"L"	"C"	# of	Nozzle​
Outside Dia.	Description	Description	Time	Type	Len	Core	Grains	Diameter​
	(newton-seconds)	(newton-seconds)	(sec)		inch	inch		inch
3.0" *	M3200P-7600NS	M3300 - 6776 NS	2.45	F	8.4	1.156	4	0.9218
3.0" *		M1500 - 6776 NS	4.5	DH	8.4	1.156	4	0.9218
3.0" *	M1845P-7520NS	M1947 - 6776 NS	3.96	S	8.4	1.156	4	0.9218
* - Motor has full diameter delay

 

[3stoogesrocketry]

Thank you to everyone who has contributed to this Kosdon-centric thread. I miss Frank. He was a one-of-a-kind. We had some fun times together. years ago. This latest post activity brought back those thoughts.

Would anyone have information detailing the nozzles specific to his 3"M casings? One was listed as 7600 NS, and the longer casing detail I don't have close at hand at the moment, My memory isn't as good as it once was. I think that it may have been an M5100? Not sure. About 48 - 50 inches long?
I have both casings and forward closures, only the 7600 here now, but the nozzles remain missing.
Thank you for any help.
Jim

55.675 long for the 10kns case. It's the one in the back left to right. The un anodized case in front of it is a 54mm 3300 case

 

[John Kemker]

Here's the Kosdon 3" motor configurations. Nozzle throat is the same as the AMW 7600 nozzle. 37" liner according to AMW, but I'm not sure if Kosdon had liner overlaps on the nozzle and forward closure.

Size	Certified	Old	Burn	Burn	"L"	"C"	# of	Nozzle​
Outside Dia.	Description	Description	Time	Type	Len	Core	Grains	Diameter​
	(newton-seconds)	(newton-seconds)	(sec)		inch	inch		inch
3.0" *	M3200P-7600NS	M3300 - 6776 NS	2.45	F	8.4	1.156	4	0.9218
3.0" *		M1500 - 6776 NS	4.5	DH	8.4	1.156	4	0.9218
3.0" *	M1845P-7520NS	M1947 - 6776 NS	3.96	S	8.4	1.156	4	0.9218
* - Motor has full diameter delay

Remember, AMW used to be known as "Kosdon East" back in the day. When I certified Level 3, it was on a "Kosdon East" 75/6000 motor. I *think* it was the M1130, but I'm not 100% sure of the designation.

 

[ZEDL1]

Here's the Kosdon 3" motor configurations. Nozzle throat is the same as the AMW 7600 nozzle. 37" liner according to AMW, but I'm not sure if Kosdon had liner overlaps on the nozzle and forward closure.

Size	Certified	Old	Burn	Burn	"L"	"C"	# of	Nozzle​
Outside Dia.	Description	Description	Time	Type	Len	Core	Grains	Diameter​
	(newton-seconds)	(newton-seconds)	(sec)		inch	inch		inch
3.0" *	M3200P-7600NS	M3300 - 6776 NS	2.45	F	8.4	1.156	4	0.9218
3.0" *		M1500 - 6776 NS	4.5	DH	8.4	1.156	4	0.9218
3.0" *	M1845P-7520NS	M1947 - 6776 NS	3.96	S	8.4	1.156	4	0.9218
* - Motor has full diameter delay

Thank you very much for this John. You'd responded to me in about the same time that it took me to post for help.

Thanks again!
Jim

 

[ZEDL1]

55.675 long for the 10kns case. It's the one in the back left to right. The un anodized case in front of it is a 54mm 3300 case

Thank you very much for this, and the the amazingly-quick reply to my request for help.
I do recall that the 55.675 casing used a 2-peice phenolic liner. I have the case and liner and (if I can locate it) back in Toronto (I'm a transplanted Canadian living in America) but much of my rocket hobby inventory won't be here until May or so. I'd forgotten about the 54/3300 motor that Frank made. I have that hardware set back north of the border. Never flown..yet. Having seen one fly years ago, it's a pretty brutal motor. Frank liked that type...

Thanks again.
Jim

 

[jsdemar]

Remember, AMW used to be known as "Kosdon East" back in the day. When I certified Level 3, it was on a "Kosdon East" 75/6000 motor. I *think* it was the M1130, but I'm not 100% sure of the designation.

I certified on same motor.... AMW / Kosdon East M1350WT in the 6000 case. Paul Robinson gave me the reload after I helped him with some AMW stuff.

 

[John Kemker]

I certified on same motor.... AMW / Kosdon East M1350WT in the 6000 case. Paul Robinson gave me the reload after I helped him with some AMW stuff.

THAT'S the one! I could never remember the designation off the top of my head.

Time to update my .sig

 

[tfish]

Remember, AMW used to be known as "Kosdon East" back in the day. When I certified Level 3, it was on a "Kosdon East" 75/6000 motor. I *think* it was the M1130, but I'm not 100% sure of the designation.

Tony

 

[John Kemker]

View attachment 625415

Tony

So, I was right. Time to re-edit my .sig

/sigh

 

[jsdemar]

So, I was right. Time to re-edit my .sig

/sigh

Depends on the date you got the motor.

 

[John Kemker]

Depends on the date you got the motor.

2000, just two years after the catalog date.

 

[tfish]

2000, just two years after the catalog date.

Tony

 

[John Kemker]

View attachment 625492

Tony

Hadn't changed. Still M1130.

 

[John Kemker]

Got my nozzles, today. Thanks, John!

 

[DabCat]

Thanks for the drawings. And thanks to everyone that bought hardware off me. I need to make myself some nozzles. I've got a grand total of 2 1" nozzles... and a ton of reloads...

 

[ZEDL1]

55.675 long for the 10kns case. It's the one in the back left to right. The un anodized case in front of it is a 54mm 3300 case

I'm sorry for forgetting to say that you have a very impressive of motor hardware.
Thank you again for your help.

Jim