LOC Ultimate build

The Rocketry Forum

Help Support The Rocketry Forum:

bobbyg23

Well-Known Member
Joined
Apr 15, 2020
Messages
1,060
Reaction score
1,047
I got a new build yesterday. I wanted something a little different so I chose the Ultimate. It has 6 fins and 7 motor mounts.

20220114_140016.jpg
20220114_142843.jpg
20220114_144654.jpg
20220114_152223.jpg
20220114_164954.jpg
 

bobbyg23

Well-Known Member
Joined
Apr 15, 2020
Messages
1,060
Reaction score
1,047
It has been snowing and cold so I had nothing better to do than keep on building. I used threaded inserts for motor retention. I will use screws with washers to hold the motor in place. I added a tube from the top cr to the aft one just in case I wanted to try airstarts with it. The fins go in super easy and are very sturdy. They sit in the valley between 2 motor mounts for a solid fit.


20220115_172547.jpg
20220115_184636.jpg
20220115_202936.jpg
20220115_203645.jpg
20220115_210148.jpg
20220115_210306.jpg
20220115_211539.jpg
20220115_211713.jpg
 

n3tjm

Papa Elf
Joined
Jan 21, 2009
Messages
7,774
Reaction score
684
Location
Penns Creek, PA
I got my L1 with my LOC ultimate with a H97 in 1999. Largest cluster I did with it was 7 G35-7 Econojets at I believe NSL 2003. I stretched it and called it the American Spirit. I will have it, and in theory, it's still flyable.
 

Adam3836

Well-Known Member
Joined
Aug 10, 2019
Messages
1,066
Reaction score
1,073
Location
CT
It has been snowing and cold so I had nothing better to do than keep on building. I used threaded inserts for motor retention. I will use screws with washers to hold the motor in place. I added a tube from the top cr to the aft one just in case I wanted to try airstarts with it. The fins go in super easy and are very sturdy. They sit in the valley between 2 motor mounts for a solid fit.


View attachment 499863 View attachment 499864 View attachment 499865 View attachment 499866 View attachment 499867 View attachment 499868 View attachment 499869 View attachment 499870
Looking really good
I was always interested in this kit
Iam pumped to see this build thread
Extra tube for potential air start is awesome
Good luck
 

Rocketjunkie

Addicted to APCP
Joined
Jan 19, 2009
Messages
4,788
Reaction score
950
I have several sizes. My standard one is currently prepped with 3 CTI G125s. It also flies well to about 1000' on 7 Estes F15s. I also have a BT-60 (13 mm), 3" (24 mm) and Ultimate Max (5.5", 38 mm). I need to build a 2.6" (18 mm) for my long 18 mm motors. The picture is my Ultimate collection, l-r Ultimate Max, Ultimate 13, Ultimate 24, and Ultimate 29. BTW, 7 54 mm fit the 7.5 tube.
Ultimates.jpg
 

bobbyg23

Well-Known Member
Joined
Apr 15, 2020
Messages
1,060
Reaction score
1,047
Fillets are done. On rockets that aren't getting j and k motors, I really like to use this method.
20220116_173959.jpg
20220116_175040.jpg
 

Rocketjunkie

Addicted to APCP
Joined
Jan 19, 2009
Messages
4,788
Reaction score
950
I have shredded an Ultimate Max. 7 I85 RX motors. The fins flutter and snap off just outside the fillets. When I rebuilt it, I used 3/16" plywood and laid 1 layer of glass tip to tip.
 

Back_at_it

Well-Known Member
Joined
Jul 16, 2019
Messages
1,074
Reaction score
924
Great build. I built one of these some years back and flew it successfully twice. On the third flight I had an unfortune ejection failure that caused the rocket to come down ballistic. As luck would have it, the rocket hit the trunk of a fallen tree instead of landing on something soft and completed destroyed the rocket all the way to the forward centering ring. While I was able to salvage the rear of the rocket, I decided right then that I was done with clusters in this bird and vowed to rebuild it as a single motor rocket.

Fast forward a couple of years and I finally got around to buying the necessary parts to rebuild. The new one will be a single 29mm build. The reduced weight from less tubing should allow me to fly this on the G74 and G80 motors.

This like so many others are sitting waiting their turn on the build desk. I will get it built this summer.

Keep up the great build!
 

bobbyg23

Well-Known Member
Joined
Apr 15, 2020
Messages
1,060
Reaction score
1,047
I like it a lot looks good
Thanks. I used the same only stealth and liked it so I figured I'd try it on this one. Messed up the decal so I'm waiting for a new one. Should look nice I think. This picture has the same black on 2 rockets with different clear coat.
 

Attachments

  • 20220102_200956.jpg
    20220102_200956.jpg
    90.3 KB · Views: 16

new2hpr

Well-Known Member
Joined
Jan 23, 2009
Messages
999
Reaction score
82
Location
Colorado
Too late to caution you to install RMS casings with rear closures before gluing motor mounts into aft ring. LOC still puts their holes a bit tight in the cluster rings.
I've flown mine on 7x G80s (SU) and G104Ts (RMS). Clusters rock!
-Ken
 

StreuB1

Well-Known Member
Joined
Aug 28, 2007
Messages
510
Reaction score
519
Location
Illinois
Too late to caution you to install RMS casings with rear closures before gluing motor mounts into aft ring. LOC still puts their holes a bit tight in the cluster rings.
I've flown mine on 7x G80s (SU) and G104Ts (RMS). Clusters rock!
-Ken


They sure do!! And the Ultimate is one of my favorite clusters made.

Few shots of my LOC IROC custom done with a 38mm + 6x29mm, an AV bay, a payload section, and an electronics hatch integrated into the gap between the 29mm tube bulkhead and the top of the 38mm bulkhead with an igniter conduit run down to the bottom CR. As well, some shots on what I plan to fly it on in the spring. 😄


The Ultimate on 7 blue thunders is a sight to see!!!

Watching this build thread!!!

20220119_221445.jpg




20220119_221457.jpg




20220119_221513.jpg




20220119_221547.jpg
 

bobbyg23

Well-Known Member
Joined
Apr 15, 2020
Messages
1,060
Reaction score
1,047
They sure do!! And the Ultimate is one of my favorite clusters made.

Few shots of my LOC IROC custom done with a 38mm + 6x29mm, an AV bay, a payload section, and an electronics hatch integrated into the gap between the 29mm tube bulkhead and the top of the 38mm bulkhead with an igniter conduit run down to the bottom CR. As well, some shots on what I plan to fly it on in the spring. 😄


The Ultimate on 7 blue thunders is a sight to see!!!

Watching this build thread!!!

View attachment 500637



View attachment 500638



View attachment 500639



View attachment 500640
Awesome build you have there.
 

StreuB1

Well-Known Member
Joined
Aug 28, 2007
Messages
510
Reaction score
519
Location
Illinois
Awesome build you have there.

Its more to pay homage to your build! But also to point out the electronics "hatch" between the short tubes and the long tubes, like on the Ultimate. Its a great place for electronics to fire airstarts. Might be something you could still add to the Ultimate at this stage if it was something you wanted to do. Should be plenty of room vertically, even with the 4" airframe. :)
 

JLP1

Well-Known Member
Joined
Feb 1, 2019
Messages
189
Reaction score
194
Hey Bobby does the Gorilla harden or does it stay soft and flexible? I guess what I'm asking is if you pressed on it with a fingernail would it leave a mark. Just wondering, something new to learn.

Thanks
 

bobbyg23

Well-Known Member
Joined
Apr 15, 2020
Messages
1,060
Reaction score
1,047
Its more to pay homage to your build! But also to point out the electronics "hatch" between the short tubes and the long tubes, like on the Ultimate. Its a great place for electronics to fire airstarts. Might be something you could still add to the Ultimate at this stage if it was something you wanted to do. Should be plenty of room vertically, even with the 4" airframe. :)
I will be doing that on a LOC Iris that will be a 2 stage rocket.
 

bobbyg23

Well-Known Member
Joined
Apr 15, 2020
Messages
1,060
Reaction score
1,047
Hey Bobby does the Gorilla harden or does it stay soft and flexible? I guess what I'm asking is if you pressed on it with a fingernail would it leave a mark. Just wondering, something new to learn.

Thanks
It hardens, but not like epoxy. If you push hard enough, you could leave a mark.
 

kswing

Well-Known Member
Joined
Mar 16, 2016
Messages
178
Reaction score
97
@bobbyg23 I like this thread.....I just got a similar kit and I'm looking forward to building it.

I have a few questions about your build....

What size threaded inserts did you use and where did you get them?

Also, what did you use for the motor wiring tube?

Thanks!
 
Top