Chris LaPanse

Well, considering that there was a wonderful spot known as lake pawnee about half a mile southeast of the pads today, I seriously doubt that it will be too dry for skids (though a lot can change in a ...

That sucks 🙁 Just make sure to get better in time for Oktoberfest - we can't have you missing that 😉

Note that I was stating that in the case of the rocket having safe thrust off the pad, which in this case both motors do, then the total impulse should be the next thing looked at. Obviously, if the m...

I have the Loki 38 set, and I love it. Honestly, they are some of the most impressive motors for their size I have ever seen. I won't stop flying Aerotech, but they are certainly a wonderful addition ...

Total/average Newton Seconds are not always everything.. Ive seen PLENTY of smaller motors with less total Newtons out lift larger ones. Its all dependant upon when they use those newtons up. The I405...

Definitely - the I405 is awesome, but it might not get the rocket high enough in this case. It's only around 500Ns, though it kicks about as hard as the I600.

The club launch this saturday? I'm a freshman Aerospace engineer, and I'm headed up with my dad this saturday just for the day. I'm in Brackett hall - if you want a ride, we could probably take you up...

I would lean towards the I600 - incredible motor, lots and lots of punch, and a little cheaper than the CTI load. It'll get your rocket up and moving just fine. Of course, the CTI is awesome too - bot...

I went back to the altimeter data from my "Just Do It" flight. The descent rate under the RRQS70 main was right at 20fps for a rocket that would have weighed 38 lbs 6ounces after propellant burnout. ...

I have never measured the descent rate on the 15, no. My 50 however comes in at about 9-15fps with 29lbs of load at the north site. The 15, assuming similar drag characteristics, should come down even...

A Rocket Rage RRQS15 would be ideal Mike, you should greatly oversize your Rocket Rage chute if you like your rocket to land softly. The RRQS15 will bring it down but more on the 25 fps rate. I have...

Keep in mind that area, not diameter, is what matters. So, a 72" would be the equivalent of 4 36's, not 2. I also agree that a single 60 sounds a bit small - I would go with a 72 to 96 incher, dependi...

4 inches? Holy crap - someone was doing an effective rain dance...

Well, considering that the frontal area goes up by the diameter squared, a 7.5" rocket will have more than triple the drag of a 4" rocket at the same speed, assuming similar coefficients of drag. You'...

It depends a lot on the rocket's diameter and drag... 19.5lbs isn't that much for an M (30lbs with motor and all), but as you say, it is only a baby M. On a typical rocket, I would probably expect 8-1...