Activity

NCR has ground support for pretty much every commercial hybrid. Currently I’m the equipment geek in charge of the GSE. My personal experience is all nearly 100% with Hypertek, but have also assisted and managed GSE for RATT and Skyripper…   Read more»

James- I have 54mm Contrail Motors. This rocket can use either the 28inch or 36inch casing and a J reload. I have the NOX tank and solenoids. I planned on a 24volt igniter with two 50 grain pyorodex pellets.

what type of hybrid are you looking at using? and what size?

Robby,the way I would try to do it is:booster lights and burns for …sec.Timer fires a separation chargebooster is now on its own, motor or electronics will deploy chuteSustainer will then light at the set delay(not to long that the…   Read more»

I just got a Cosmodrome Aerobee Hi kit and it doesn’t come with instructions for staging electronics. If anyone knows someone or has built and flown this kit themselves I would like to know how you configured the electronics. Being…   Read more»

Sparky, a minor but important point. You cannot lengthen ANY delay, you can only shorten them. If you want a longer delay for an AT motor, you buy the long delay for that motor. If that’s too long, you use…   Read more»

Missile works PET is basically two timers in one, I have used it air start to different sets of motors, they work great.I think you are asking on how do you recover the booster then, I would use electronics but…   Read more»

With the configuration of the PML kit as is I would have to redesign the electronics bay to make room for the timer in the sustainer. Another question I have is the booster ejection timing. On a Cessaroni I can…   Read more»

I plan on having a 4″ rocket flying by Oktoberfest.Based on an Aerobee 350.Booster will be an H motor. The sustainer 3 29mm.The booster will be 3″ and the sustainer will be 4″.PET2 timer. All engine ejection.I will be glad…   Read more»

I have never staged an HPR (that is the disclaimer 😉 but I would have to say that the majority of big, staged projects I have seen have had very significant intervals between burnout of the booster and ignition of…   Read more»

I found my firends web site but there isn’t that many pictures. I’ll post it here for anyone that is interested.http://www.dmf-rockets.com/omega4/omega4page.htmlHe did get many, many flights on that rocket in part because of the vent holes. If you don’t have…   Read more»

Doug it right it does not happen that often, you also have to remember if it does not light you are using electronics that will deploy chutes with or with out the ignition of the upper stage as long as…   Read more»

I am struggling with this drag seperation of the booster and with the interstage coupler(with timer) attached to the booster , how do you set timing so the sustainer motor gets lit before seperation? Drag separation almost never happens. It…   Read more»

you will need to make sure you have a snug enough of a fit that it does not separate until motor is lit, the pressure of the motor lighting will pressurize the inter-stage coupler causing it to separate. You can…   Read more»

I purchased my QuantumLeap in phneolic and then fiberglassed the body tubes. I am struggling with this drag seperation of the booster and with the interstage coupler(with timer) attached to the booster , how do you set timing so the…   Read more»

I would like to pick the brain of a NCR staging expert. My project is a Quantum Leap 3000. I have too many questions to post here. Thanks.I can tell you, if you have the quantum tubing(plastic) dont use 2…   Read more»

I have successfully staged a HPR rocket and it is a learning experience. I also have in the works a larger two stage rocket. I can try to help.Doug

I tried a pm and it did not send. I am not an expert but feel comfortable discussing it and I think I can help you out.feel free to contact me directlyjamesr2 at gmail dot com

Scott, I had one of those calculators, too. TI something or other. Plus in 1970 used an IBM 360 at DePauw University in Indiana, which DID take up a room and used punch cards, between my junior and senior year…   Read more»

Hey, I’m not that old. OK, well maybe I am. Man, those things bring back bad memories. I still remember my firstTI-55 programmable calculator with a red led dot-matrix display. Bought it circa 1977. Now that was bleeding-edge.Hey I remember…   Read more»