# What's the fastest anyone has sucsessfuly flown a lightly built Estes Star Orbiter ?

### Help Support The Rocketry Forum:

#### Wallace

##### Well-Known Member
That was an I205. General consensus was th 808 cam taped to th bt caused it to wobble @ speed resulting in this...May have been fine with a clean airframe?

#### dhbarr

##### Amateur Professional
Those fins are pretty light. If paper + CA + tape is "lightly built" then you could probably push up into transonic.

Last edited:

#### CPUTommy

##### Thrust cures All
I think that's a project worth revisiting, New body tube and lose the cam.. And a real light accelerometer.. I'm curious to see the numbers.

#### CPUTommy

##### Thrust cures All
The engine mount went through the tube and into the nose cone?

#### dhbarr

##### Amateur Professional
The engine mount went through the tube and into the nose cone?
Looks like that Estes retainer is to hold the tail of that sled into the nose.

#### Wallace

##### Well-Known Member
Looks like that Estes retainer is to hold the tail of that sled into the nose.
Correct, that's a modular nc av bay system I designed. Basically anything that I can fit a bt-55 into will hold my eggfinder mini/Quantum combo. Just drop it in and screw on the retainer (I turned down to OD to fit the bt). It also allows for shorter/lighter batteries due to the fact that the sled itself is two separate pieces(can be shortened with a different tail section). I chose a 800Mah Lipo due to the fact it has to handle both the Mini and WiFi on the Quantum. They both survived and I will post data from the Quantum.I will post ground flight video soon, but the onboard 808 #16 is still lost "somewhere" near the pad @ Bong since that's pretty much where I found the rest of the parts.

#### Wallace

##### Well-Known Member
Btw, It was mostly a stock build with the addition of Basswood fins/epoxy construction and a baffle.

#### Wallace

##### Well-Known Member
Anyone make sense of this? This is what I got from my Quantum. Apologies for the bad pics.

More.

#### Wallace

##### Well-Known Member
Here's a ground pic prior to breakup.

#### cerving

##### Owner, Eggtimer Rocketry
TRF Supporter
You need to download the detail. You'll get some interesting insight into what a shread look like to an altimeter... you're likely to see some very spikey data.

It looks like the failsafe kicked in and tried to deploy the parachute right after apogee, probably because it didn't see that your drogue was doing any good. That's understandable since by that time you already were in pieces. You have a really low velocity value for the failsafe, the default (if you enable it) is 100 ft/sec for 1 sec. 50 ft/sec is about the velocity that your drogue should be hitting.

#### Wallace

##### Well-Known Member
Thanks for the input Cris. At least now I have a direction to look

#### Leo

##### Well-Known Member
I'm up to CTI G88-P Smokey Sam. Next steps will be H motors.....

#### Wallace

##### Well-Known Member
I'm up to CTI G88-P Smokey Sam. Next steps will be H motors.....
How is it built and how much does it weigh?

#### Leo

##### Well-Known Member
How is it built and how much does it weigh?
Well, it seems I never documented the actual weight in my data base but I'm simulating it with 13.5 ounces so I must have weighed it at some point.
In 4 weeks it will hopefully be flying on an H depending what type the vender has at the field.

#### Wallace

##### Well-Known Member
Thanks for the input Cris. At least now I have a direction to look
Also thanks for the Eggfinder Mini; Or I wouldn't have any data to peruse.

#### Wallace

##### Well-Known Member
Well, it seems I never documented the actual weight in my data base but I'm simulating it with 13.5 ounces so I must have weighed it at some point.
In 4 weeks it will hopefully be flying on an H depending what type the vender has at the field.