I just finished up my 2.6 Competitor 2 stage built. I'd like a bit of a sanity check to make sure I don't make any stupid mistakes, this is my first 2-stage HPR.
Here is the Openrocket file : View attachment Red Tenacity - 2 stage.ork
I plan to fly it with DMS H550 (0.6s burn time) in booster and a Loki H160-LB (w/pyrodex pellet) in the sustainer. Setup is as follows.
Booster
Eggtimer Quantum #1 (Drogue Channel) - separation charge at 0.7s,
Eggtimer Quantum #1 (Main Channel) - chute deploy at apogee
motor backup @ 7s
Sustainer
- Sustainer ignitor will be handled by Quantum #2 in middle ebay via conduit through MMT centering rings into bottom of motor as per normal launch, wire will be twisted and taped to allow break during drogue deploy
Eggtimer Quantum #2 (Drogue Channel), airstart @ 1s after launch, altitude minimum (none), velocity minimum 100ft/s
Eggtimer Quantum #2 (Main Channel), drogue deploy @ apogee
Eggtimer TRS (Drogue Channel), drogue deploy @ apogee + 1s
Eggtimer TRS (Main Channel), deploy @ 500ft
My sim shows sustainer ignition @ 1s will be at height 156 ft, velocity 216 ft/s.
For pad setup, I'll bring it up to the pad with both ignitors out
- load the booster on the rail, arm the Quantum #1 via wifi and insert motor ignitor
- load the sustainer on the booster (ignitor out)
- arm eggtimer TRS
- insert ignitor in sustainer
- back off, ensure area is clear and arm Quantum #2
Screenshots of the SIM & OR screen showing weights/motor selection.
Thanks for any help/advice you can offer.
cheers - mark
Here is the Openrocket file : View attachment Red Tenacity - 2 stage.ork
I plan to fly it with DMS H550 (0.6s burn time) in booster and a Loki H160-LB (w/pyrodex pellet) in the sustainer. Setup is as follows.
Booster
Eggtimer Quantum #1 (Drogue Channel) - separation charge at 0.7s,
Eggtimer Quantum #1 (Main Channel) - chute deploy at apogee
motor backup @ 7s
Sustainer
- Sustainer ignitor will be handled by Quantum #2 in middle ebay via conduit through MMT centering rings into bottom of motor as per normal launch, wire will be twisted and taped to allow break during drogue deploy
Eggtimer Quantum #2 (Drogue Channel), airstart @ 1s after launch, altitude minimum (none), velocity minimum 100ft/s
Eggtimer Quantum #2 (Main Channel), drogue deploy @ apogee
Eggtimer TRS (Drogue Channel), drogue deploy @ apogee + 1s
Eggtimer TRS (Main Channel), deploy @ 500ft
My sim shows sustainer ignition @ 1s will be at height 156 ft, velocity 216 ft/s.
For pad setup, I'll bring it up to the pad with both ignitors out
- load the booster on the rail, arm the Quantum #1 via wifi and insert motor ignitor
- load the sustainer on the booster (ignitor out)
- arm eggtimer TRS
- insert ignitor in sustainer
- back off, ensure area is clear and arm Quantum #2
Screenshots of the SIM & OR screen showing weights/motor selection.
Thanks for any help/advice you can offer.
cheers - mark