GeeTee on a G33

[WillCarney]

It's not very often I get to fly my green tubes rocket "Gee Tee"
on a G33 blackjack. With the long length and tube fins it requires
a larger motor in any wind. So I thought I would share it.

The body tube is basically BT80 at the bottom. The tubes are
just slightly larger. Red Arrow Hobbies got some tubes one time
that was off size and sold them pretty cheap as BT-81. The top
tube transitions to BT-60 size.

Here's a few links for the launch last Saturday at Champaign.

https://cia-rocketry.smugmug.com/gallery/1878421/1/94553543

https://cia-rocketry.smugmug.com/gallery/1878421/1/94553561

https://cia-rocketry.smugmug.com/gallery/1878421/1/94553612

Hopefully those worked.

William

 

[jj94]

Nice pics. Ever try it on a redline?

 

[shreadvector]

Just in case beginners are here and reading this: this was posted in the mid-power forum and the G33 is legally a High Power Motor because of propellant weight.

https://home.flash.net/~samily/stuff/HPR_metric8.pdf

 

[WillCarney]

I have flown this rocket on many motors including a G80,
G38, G40, G75, G104, H97, H128, H238, H220, H268,
and a I200. I am thinking about adding a small EB to fly
it on some homemade G and H motors.

As far as the G33 being High power, that's questionable
and we can debate that in propulsion, I don't consider it a
high power motor. If the mods want to move this thread to High
Power Rockets then go ahead.

William

 

[Fore Check]

Originally posted by WillCarney

As far as the G33 being High power, that's questionable
and we can debate that in propulsion, I don't consider it a
high power motor. If the mods want to move this thread to High
Power Rockets then go ahead.

William

Agreed - it is a G impulse engine, therefore it is mid-powered.

Now, as far as being TREATED in the same way as high-power motors due to propellant weight, that's another story.

But a "G" is a "G". Total impulse = mid-power.

 

[kelltym88]

Nice pics.

 

[WillCarney]

Originally posted by kelltym88
Nice pics.

They were taken by Greg Smith at our local launch.

Here's the link to the CIA smug site for that day.

https://cia-rocketry.smugmug.com/gallery/1878421

William