It's my understanding that we can only use an altimeter for altitude verification and not for deployment? Is that correct? If one runs software and finds that his or her altitude requires a delay longer than the motor provides (10 sec)--well, I have a tricky and legal way to add more time, but I just want to make sure that this is a stipulation of the contest. No deployment with altimeter, only altitude?
That's not the way I understood it. I think the intent was for altimeters to be used for altitude verification and deployment. We are not allowed sonic or electronic tracking - it needs to be visually tracked (if possible) and/or recovery by luck and good wishes. At least, that's why I spent the twenty spot.
You can use an altimeter for deployment and MUST use an altimeter for altitude determination. It must be an unmodified commercial altimeter.
What you cannot do on the 2006 Single Shot Sweepstakes is use any kind of radio or audio tracking equipment to help you find the rocket AND you must return the rocket to the LCO table by end of flight ops on the day you make your flight.
Warren Musselman
Glad you guys set me straight. That certainly makes sense. I was trying to figure out how to lengthen a set delay another few seconds... and figured that couldn't be right. Just get a 0 delay motor and pop the puppy with a charge. No problem. FINDING it... BIG PROBLEM... but there is always a legal way... time to unveil my sonic paint invention... you know, really loud paint? Finding something that relatively small after 7,000 feet or so... hmmm... 🙄
I know what you mean 🙄
I have a pretty solid design, which I am extremely confident in for the ascent, but I am a little unsure about finding it after it vanishes off the pad.
I put 7,000 feet down waiting for someone to say something... it's a joke... unless someone, or EVERYONE, can do it! I'm doomed! 😕
Firstly, AT doesn't make a G80-0. You remove the ejection charge from the well and fill the flash hole with a dollop of 5 minute epoxy or a wad of grease.
Secondly - 7000' is probably a fantasy.
Warren
That's why I said 7,000 ft. 6,000 isn't a fantasy though. Not likely, but possible. In theory anyway, and we both know what that means. I haven't even looked to see if the G80T came with no delay. Thanks for setting me straight on that, too. This is gonna be fun.
The current club altitude record for the G motor is 6383' and is held by John Wilke. The Tripoli world G record is 7567' and is held by William Inman.
As a matter of discussion, it is VERY unlikely that a G80 would come close to the world record or even the club record as both of those are held by 24mm minimum diameter airframes. The G80 is a 29mm motor and I do not believe any manufacturer is making a 24mm G motor at this time. There are still a few that are currently certified, but will not be made again such as the Aerotech G55 SU motor.
I would expect altitudes in the high 5000's to be the best folks have a decent shot at with the G80. The main reasons for this are the 29mm minimum airframe diameter and the fact that the current G80 is only an 80% G motor. The G55 and G75 motors used for the two records listed above are 95% and 98% G motors as well as being only 24mm.
After my experiences going after the F record, I can attest to the fact that it is VERY difficult to retrieve a small model from that kind of altitude without radio tracking.
By the way, my bird looks to need a 15 second or so delay to reach apogee.
Warren
Well, actually the G75 is 29mm. Still, it is a long(er) burning full G, rather than the rather small G that the current G80 is (only 100Ns).
Warren, from your delay... I am so doomed. 🙂
The current club altitude record for the G motor is 6383' and is held by John Wilke. The Tripoli world G record is 7567' and is held by William Inman.
I would expect altitudes in the high 5000's to be the best folks have a decent shot at with the G80. The main reasons for this are the 29mm minimum airframe diameter and the fact that the current G80 is only an 80% G motor. The G55 and G75 motors used for the two records listed above are 95% and 98% G motors as well as being only 24mm.
Warren
Warren, I think you're dead wrong on this and would like to see if there's any interest in a sidebet pool. Not only is 6k doable I expect several to top that, with 7k an outside possibility.
Warren, from your delay... I am so doomed. 🙂
Agreed.
I only need 14.8
Oh, please... you guys are killing me... does anyone know what the pot is at this point? Warren?
That's what I love about these contests... the challenge...
To quote John Wilke.. "Well hike you your skirts and lets go for it boys..."
Warren
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