Build Thread - Seraphim - Level 3 Certification Scratch Build

[arconhi]

Agreed, Jimmy, it was great seeing you again. We'll go back to that field once the soybeans are harvested and hopefully have a better time.



Earlier than planned, but since it was just discontinued, I picked up an L1365M from BMS this morning. I probably will be flying the Seraphim on this motor at next year's Red Glare to give as many people as possible the chance to see the L1365M in action.

We will go back again and it will be many flights like we had in May 2021.
1365.0 Newton Thrust in the "L" motor with a 3.5 second burn and an M1500 with 1508 Newton thrust 3.5 burn time with Mojave green exhaust will be nice to see. Have you ever flown an "L"?

 

[arconhi]

We will go back again and it will be many flights like we had in May 2021.
1365.0 Newton Thrust in the "L" motor with a 3.5 second burn and an M1500 with 1508 Newton thrust 3.5 burn time with Mojave green exhaust will be nice to see. Have you ever flown an "L"?

Just to let you know , your Jolly Logic Chute Deployer and Chute bag arrived here today.

 

[Antares JS]

We will go back again and it will be many flights like we had in May 2021.
1365.0 Newton Thrust in the "L" motor with a 3.5 second burn and an M1500 with 1508 Newton thrust 3.5 burn time with Mojave green exhaust will be nice to see. Have you ever flown an "L"?

I flew the Seraphim on an L1520T for its final test flight with the GPS tracker on board. It was pretty great - it's a fast-burn blue motor with a web thick enough to burn for a little over two seconds.

 

[Antares JS]

Seraphim will be getting one small upgrade for its two planned flights at Higgs this season: I will be adding an Eggtimer wifi switch to the tracker bay to allow me to turn the tracker on and off while it is enclosed in the nose. Previously, I had to activate the tracker before enclosing it, causing battery to be wasted during the completion of flight prep and the long walk out to the away cells. Now, I will be able to wait to activate the tracker until the rocket is on the launch pad.

 

[Antares JS]

The Seraphim will be returning to the away cells at Higgs Farm this Saturday, February 4th, with an L1256WS.

 

[waltr]

I'll be there to watch.

 

[GalantVR41062]

I flew a AT L1256WS. Very solid performing motor and just under a 1:1 flame to rocket ratio.

My rocket is a 1/4 scale Viking 7 sounding rocket. 8" diameter, 144" tall, weighed 62lbs and apogee of 2,150 feet.

 

[Antares JS]

Stratologger said 5373 feet, Raven3 said 5364 feet and 523 mph

 

[arconhi]

On Saturday Febuary 4th 2023 at MDRA ESL 289 , John Stern is getting his 14 foot Seraphim rocket ready to fly on an Aerotech L 1256-SW motor. A successful flight reaching an Altitude of 5373 feet recorded by the Strata logger. A great flight it was and landed with no damage. Well done John. Video is coming soon.

 

[James Owen]

Beautiful rocket, pictures, and flight! Good luck on the L3!

 

[waltr]

That was a good flight and the recovery walk wasn't too far.

 

[arconhi]

Video of John Stern's Seraphim rocket on an Aerotech L1256-SW motor. Reached an altitude of 5373 feet at 523 MPH on Febuary 4th 2023 at MDRA in Maryland.

 

[Antares JS]

The next flight will be at Red Glare, on an L1365M. This is one of the motors that got semi-discontinued by Aerotech, so I want to give as many people as possible a chance to see it.

 

[eriggins56]

Great Job all the planning and hard work sure paid off

 

[arconhi]

The next flight will be at Red Glare, on an L1365M. This is one of the motors that got semi-discontinued by Aerotech, so I want to give as many people as possible a chance to see it.

4870 NS Sparky will be a great show. Had a great time last Saturday John. It was a Perfect day for flying and Seraphim was very impressive. Are you planning on going to ESL290?

 

[Antares JS]

4870 NS Sparky will be a great show. Had a great time last Saturday John. It was a Perfect day for flying and Seraphim was very impressive. Are you planning on going to ESL290?

Yes, I haven't nailed down a flight roster yet but I am planning to be at ESL290.

 

[arconhi]

Yes, I haven't nailed down a flight roster yet but I am planning to be at ESL290.

 

[arconhi]

Good. Im sure your roster will be a good one. 4.0 29mm Iris is going up on a G motor for sure this time. I think maybe get 600 feet maybe at 2 pounds 5 ounces. Also I should have Drago ready to go by then.

 

[arconhi]

Building the Drago rocket. Thanks AntareJS.

 

[Antares JS]

Flight data from the L1365M flight at Red Glare.

Stratologger said 6547 feet, Raven said 6541 feet and 604 mph. Photos forthcoming.

 

[Antares JS]

 

[Hobie1dog]

awesome

 

[waltr]

Takeoff looks great. Guessing this flew on Sunday. How were the winds and how far did it drift.
I was down there Friday but couldn't make it Sunday due to we had our local launch (PARA) Sunday.

 

[Antares JS]

Takeoff looks great. Guessing this flew on Sunday. How were the winds and how far did it drift.
I was down there Friday but couldn't make it Sunday due to we had our local launch (PARA) Sunday.

The wind on Sunday was bad in the morning but better in the afternoon. I arrived early but takeoff wasn't until about 2:00. It was actually a bit sad to see Red Glare end just as things were starting to pick up more. My Eggfinder said it was about a 1500 foot walk from the flight line to the landing site.