Cool G Sparky Flight =)

[n3tjm]

My EZI-65 with one of my G54 Sparky motors. (similar to my G53 but with a little more propellant).

http://www.youtube.com/watch?v=a3eHJ4RUVb8

 

[jj94]

Nice. If I remember, you said that you make these from scraps that AMW gave you, right?

 

[n3tjm]

That is correct. =)

 

[ben_ullman]

Do you just use 1/2 grains like loki or the I grains? I have some AMW38mm laying around I might mess with.

Ben

 

[AKPilot]

Nice! Who sells the G54 btw? Looks as if it'd be a good park flyer.

 

[ben_ullman]

Nice! Who sells the G54 btw? Looks as if it'd be a good park flyer.

Its an "EX" load so maybe this thread should be deleted :bangbang:

Ben

 

[n3tjm]

Do you just use 1/2 grains like loki or the I grains? I have some AMW38mm laying around I might mess with.

Ben

Yes. The G54 design uses a standard AMW 38mm Skidmark grain cut in half. Custom made nozzle with a 3/16" core.

 

[n3tjm]

Nice! Who sells the G54 btw? Looks as if it'd be a good park flyer.

Not sold. Closest thing that is sold is the PRO38 G Skid and the new 29mm G skids. I do believe the formula is different with the Pro series but I am not 100% positive on that. I think the classic AMW 38mm skids have more sparks

I designed this motor as a park flier, and flown it many times. Few times near Albany, NY, couple times in my Parents front yard, and several times at the school I fly at with the scouts. The motor was even used by AMW to do some tests but I don;t think I am at liberty to talk about that

 

[Rocketjunkie]

Here's a rocket on a Pro38 G69 skid: http://www.tripolisc.org/modules/xo...albun86/Jon_Chrisman_s_Matrix_on_sparky_G.wmv

 

[cjl]

Not sold. Closest thing that is sold is the PRO38 G Skid and the new 29mm G skids. I do believe the formula is different with the Pro series but I am not 100% positive on that. I think the classic AMW 38mm skids have more sparks

I designed this motor as a park flier, and flown it many times. Few times near Albany, NY, couple times in my Parents front yard, and several times at the school I fly at with the scouts. The motor was even used by AMW to do some tests but I don;t think I am at liberty to talk about that

Having just got back from a launch with many small CTI skids, I can tell you that they actually have significantly more grunt and noise than the AMW skids did in the same size. The I315 was less spectacular than many of the H loads that were flown. CTI has done skids properly. I don't think the sparks last as long, but there are plenty of them, and lots of noise.

I also saw some Pro54 J skids - they are excellent loads. I may need to get some CTI cases now.

 

[jj94]

Seems like the Cesaroni skids are faster than the AMW ones. Is it just me?

 

[MarkII]

Way to go, Sparky...err...Doug!

Is it my imagination (or an optical illusion) or did your EZI-65 get just a touch squirrely right after it cleared the rod (or rail - couldn't tell in the dark)?

MarkII

 

[cjl]

Seems like the Cesaroni skids are faster than the AMW ones. Is it just me?

I think they're about the same speed, but with a higher Isp. I know the 54-6XL load is a K990 or something like that, which would fit that assumption (since the old equivalent was a K1000).

 

[n3tjm]

Way to go, Sparky...err...Doug!

Is it my imagination (or an optical illusion) or did your EZI-65 get just a touch squirrely right after it cleared the rod (or rail - couldn't tell in the dark)?

MarkII

Yes it did. I think it was caused by the lower launch lug binding with the launch rod when the top cleared the rod.