help with lunch lugs

[BEC]

One other comment: I agree wholeheartedly about not wanting launch lug(s) to be a prominent aesthetic feature of my rockets. It's that urge that just led me to color the lug on an Alpha III (with the precolored black BT) with a black Sharpie just now. That white lug against a black BT was too darn prominent.

I'm going to do a little investigating of kit and plans rockets I have to see where the lug is or lugs are relative to the loaded CG and a bit on OpenRocket to see about the relationship to the CP. The one I have modeled in Open Rocket right now, the BMS School Rocket, clearly has the lug too far forward according to the criterion Will listed just above.

 

[MarkII]

The NAR safety report at https://www.nar.org/pdf/launchsafe.pdf recommends a single lug spanning the CG and CP or a pair of lugs approximating that.

Perhaps I am misreading it, but that report seems to take an extremely cautious stance toward lugs. I mean, recommending that lugs be a minimum of 1/4" in diameter and 6" long? Can you see that on an Alpha or a Wizard?

MarkII

 

[WillMarchant]

Perhaps I am misreading it, but that report seems to take an extremely cautious stance toward lugs. I mean, recommending that lugs be a minimum of 1/4" in diameter and 6" long? Can you see that on an Alpha or a Wizard?

MarkII

Yes, I've heard a lot of opinions about the report recommendations being overkill. I think they got scared, as they probably should be, when they crunched the numbers and found out how many near-misses we've all been having.

 

[mperdue]

Perhaps I am misreading it, but that report seems to take an extremely cautious stance toward lugs. I mean, recommending that lugs be a minimum of 1/4" in diameter and 6" long? Can you see that on an Alpha or a Wizard?

As a mater of fact you'd be able to see that from a long ways off...

 

[shreadvector]

Yes, I've heard a lot of opinions about the report recommendations being overkill. I think they got scared, as they probably should be, when they crunched the numbers and found out how many near-misses we've all been having.

The report is primarily written for and about High Power Rockets, not Model Rockets.

 

[MarkII]

The report is primarily written for and about High Power Rockets, not Model Rockets.

Tsk, tsk - details, DETAILS...

MarkII