Apogee Aspire Rocket Sonic Boom!

[vdogg43]

Here is the data from this launch from the rockets electronics, The rocket reached a speed of 813mph, and an altitude of 4536'. You could not hear a sonic boom, that was just the sound of the G77 Redline Motor.

[davetherocketguy]

@superrocketfreak So what exactly are you basing this conclusion on? What hard scientific evidence is there to prove the 800+mph claims that are being made here? Are you basing this on Apogee's web site which stands to sell a LOT more rockets and motors if they SAY it goes past mach? Moreover, are you basing this on RockSim which is also an Apogee product that is over-optimistic on altitudes and speeds or do you have hard evidence? Where is the altimeter data?

[edwinshap1]

nope, thats called a shred...thats why so much of the smoke is at the very end of the burn...

[espjuan]

You heard the Aspire go BOOM!!

[westporter100]

awesome rocket! i gotta build one!

[pierce4484]

I want a sonic burger!

[DTHRocket]

Very cool.

Probably not a sonic boom though. The shock wave propagates out laterally, above the spectators' heads.

[mathyu0179]

I didnt know the majority of youtube subscribers were rocket scientists...

[Omnigeek6]

On rocketry videos they are...

[stymye]

you will not hear the sonic "boom" lol...because the rocket is traveling away from you rather than or past you.. the shockwave travels outwards from the sides of the rocket. the shock wave would not travel down to the ground.. plus..it would be more of a pop than a boom.

[funnyfootlong]

nope...i dont think yall got mach...unless you have some altimeter data, im going to have to call shenanigans...

[krustyclown42]

I've got one of these - waiting for the motor to arrive :) Great video!

[brokos2]

Cood job Mach 1.17 or so really nice.

[davetherocketguy]

Sorry to burst your bubble but I really doubt you heard a sonic boom on a G. Even in a minimum diameter rocket this is almost impossible to go supersonic on a G.

[boondocksaintpoop]

This rocket goes mach 1.36 if they are using a G77R/L motor which I believe they are. It goes past the speed of sound mostly because its a small sleak rocket with a huge ass motor.

[vdogg43]

I hate to burst your bubble by telling you the information you need is on the Apogee website.

With a G77 Rocket it reaches speeds over 800mph.

Plus they have a simulator that gives you height and speed of your rocket depending on which motor and rocket you are using.

[prolightingdesigner]

Even if the rocket did reach a supersonic speed the sonic boom will not be heard. The reason is because the pressure shockwave that produces the boom travels away from the rocket, not behind it. Also, the rocket is not big enough to produce an audible boom.

[vdogg43]

Read what I wrote, I never said anyting about a sonic boom. I just said the rocket goes over 800mph and to check the Apogee website.

[mathyu0179]

@prolightingdesigner First, most bullets produce a sonic boom, and sound while traveling the forward upward direction of the rocket, will still be audible on the ground, barely.

[vdogg43]

Wow, this video was great.