4" Darkstar questions

[SaturnV_]

Hey,
So after losing my 2.1" Darkstar, I'm gonna start building the 4" Darkstar. I have a few questions regarding it that I hope you guys could help me with.

• What diameter parachute should I go with? I would do a sim first, but I'd rather buy everything at once to pay for shipping once.
• What diameter shock cord? I was going to get a Onebadhawk 7/16" tubular kevlar shock cord, would that be sufficient?
• For the switch, I was either gonna get a key switch or the schurter one. Since this rocket is capable of breaking mach, I don't want to have a lot of unnecessary holes in the avionics bay. Could I just glue the switch through a hole without it interfering with the altimeter sled (i.e. is it short enough for the 98mm additive aerospace bay to pass by it?

Thanks a lot. I know these are kinda basic questions, but I was hoping you could help.

Best,
SaturnV_

 

[KenRico]

Wildman is one stop shopping for the kit, motor retainer, bridal (1 inch kevlar strap), 7/16 kevlar harness with loops or bulk 3/8 tubular kevlar and rocket poxy .

Recommend the Wildman Recon 50" Chute ..all the recon line is solid..even better paired with the WM Recon Drogue .

4 inch is big enough to add a pair of Schruters in the vent/switch band and not interfere with sled removal or seating .

Kenny

 

[SaturnV_]

Got it. Thanks so much!

 

[farsidius]

I fly a 4" Vindicator using the 50" Recon too. The 3/8" tubular is plenty strong for the 4" rockets.

 

[SaturnV_]

Ah, good to know. Thanks!