Thoughts on Super Single Shot

[Anonymous]

So, Warren – how many SSS and SSSS do we have? What is in the kitty?

[Bret PackardParticipant]

You in yet JW? Cuz I’m starting to feel pretty confident about my design. You perennial all-stars may be in for a shock. 🙄

OK, that was totally a joke, but I hope we do get some new blood into these contests. I can tell you firsthand that going up against the caliber of people in our club it can be a bit intimidating.

Oh, and xman, thanks for the tip. I actually have quite a bit of stuff from aerosleeves, which I love, but I hadn’t seen carbon cloth on their site. That’s what I need for the fins. I just saw what you were refering too and it looks perfect. Time to place an order I think.

[Doug GerrardParticipant]

Could I get some clarification on the rules for SSSS. The site states

– Highest altitude on a J350 motor.
– One shot, one try.
– Electronic tracking allowed.

What is the entry fee?
What is the prize?
When does it run? (All year?, once per launch?)

Thanks, Doug

[Bret PackardParticipant]

$20 entry fee
Winner gets the whole pot.
You can enter until the first shot goes up.
Ends at the end of the year, prize will be awarded to me at the annual meeting 😉

OK, maybe the last part isn’t true, but you get the idea. 😀

[Doug GerrardParticipant]

You can enter until the first shot goes up.
Ends at the end of the year, prize will be awarded… at the annual meeting

That eliminates me from competing…

Doug

[Anonymous]

Hey, Doug – no need to come to the meeting, we’ll mail you a check!

The rules are essentially one shot on a J350, highest boost gets the loot. Very similar to the SSS except different motor and no tracking is allowed…

We need to get Warren to post the rules on both. We had a really nice set of rules drawn out but they were lost when the old server died. I’m sure I have them on my other computer…

Warren, do you have the rules handy?

[Anonymous]

Here’s an idea on attaching the fins. I’ve never tried this but it may work OK, but I’ll leave the analysis to the experts. Rather than mounting the fins directly to the airframe using a conventional surface mount, how ’bout a modified TTW approach. Since this is a minimum diameter rocket, you could only go TTW, the thickness of the wall. Not only would the fillets add strength (esp. if using glass or CF), but so would the area of contact between the fin and tube along the entire inside perimter of the slot.

Just a thought…

This is actually precisely how I do mine. I have done simple surface mounts, but most of the time I do as you suggest above. I go one tiny step further — I wrap a motor in Mylar, slide that into the airframe, and tack things down thattaway. I slide the motor out , and the inside is clean as a whistle…. the Mylar works very, very well.

[Bret PackardParticipant]

Yeah, sorry, didn’t mean to imply that you had to be present to win, that’s just when Warren announces contest winners.

On the fin mount, I was thinking about that too, but I wasn’t sure if it was overkill. It seems like with a couple layers of tip2tip the root attatchment won’t be the weakest link anyway. I’m more concerned about flutter. If the flutter can be mitigated, I wouldn’t expect the root joint to be in any danger.

[Doug GerrardParticipant]

There is the basic rules posted under contests but not the details. I guess I could compete but there is a big difference if you local guys could pick and choose any month for the perfect conditions to fly in but I’m limited to May or Oktober (assuming I can even make it to either). Its too bad, I had a beauty for a design. Now, if you limited the flying to only Mile High Mayhem and/or Oktoberfest, the out of towners could have a chance…

Doug

[Chris LaPanse]

Honestly, you probably have as good a chance that day as any. All of us who go there every month manage to procrastinate and all fly in November anyways, so it’s not like we pick and choose the month 😆

[Author]

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