Does this look stable?

[Sparkyflyer14]

Using your expert opinions, do you think this looks stable? Estes Bt-80. Plenty of nose weight, but I don't think the fins look big enough. 6 ft launch rod. Big motor. Should have lots of speed coming off the rod. Help me be lazy and not have to do this the real/proven to be safer way of putting it in rock sim or something. Thanks

 

[afadeev]

Stable?
What about the lower end of the airframe that appears to have been chewed by rabid racoons?
How "plenty" of nose weight are we talking about here?

If in doubt w.r.t. stability, consider modeling the rocket out in OpenRocket:
https://openrocket.info/

 

[Sparkyflyer14]

Nose weight makes cg about one caliper into the blue from the red-blue zone. You're not too far off about the fin section. I've never tried Open Rocket, thanks I'll have to check it out.

 

[bobbyg23]

If cg is up in the blue with motor installed, you are good.

 

[bobbyg23]

Mentally though, not stable at all.

 

[cbwho]

It doesn't look pretty. I do think aesthetic does have some value...

 

[MadRocketer]

You have a launch lug up there by the nose, but not down by the fins. I like to have my launch lug or lugs as far back as possible to take as much advantage of rod or rail length as possible.
Leaving the lug up there effectively cuts about 20 inches off your launch rod.

 

[Sparkyflyer14]

You have a launch lug up there by the nose, but not down by the fins. I like to have my launch lug or lugs as far back as possible to take as much advantage of rod or rail length as possible.
Leaving the lug up there effectively cuts about 20 inches off your launch rod.

That's actually a camera. Come to think of it, I don't think there are any launch lugs on there. I bet if I put some on it would help a bit.

 

[Sparkyflyer14]

Mentally though, not stable at all.

It doesn't look pretty. I do think aesthetic does have some value...

Its had a hard life...

 

[neil_w]

https://openrocket.info
It takes 5 minutes to enter a rocket like that.

 

[techrat]

Why not just do a swing test? Wrap some cord around the CG, and swing it around your head. If it flies nose first, it's stable enough.

 

[techrat]

One thing for sure, the camera wasn't stable when you took that photo. I get dizzy just looking at it.

 

[Sparkyflyer14]

Why not just do a swing test? Wrap some cord around the CG, and swing it around your head. If it flies nose first, it's stable enough.

Couldn't find a rope. Why don't I have a rope?

Open Rocket is cool. Looks like I'm good to go. Thanks for suggestions all.