Loc Mother Lode for LDRS 2017

Brent said:

Here is a scan.

Click to expand...

Thanks

Rocketjunkie said:

The Mother Lode has 3 75 mm tubes with 54 mm mounts in them.

Click to expand...

Now that makes sense as an adapter.

H_Rocket said:

3 x 75mm

Click to expand...

with 54mm mounts installed in the 75s. Rocket was never designed to be flown on 75mm motors

jimzcatz said:

with 54mm mounts installed in the 75s. Rocket was never designed to be flown on 75mm motors

Click to expand...

No guts...no glory!

When Ron introduced this kit there were no 75mm motors yet.

jimzcatz said:

When Ron introduced this kit there were no 75mm motors yet.

Click to expand...

What I was thinking too, with the possible exception of the "Energon" single use motor??

Back then, there was no 75 mm motors.
They are new compared to 54 mm and 98 mm.

JD

dixontj93060 said:

Nevermind. I found it. It says the Mother Lode was 3x54mm (although I would have expected 3x75mm). These larger kits were in the "Custom Engineering" section of the Loc-Precision web page back in late 1999/early 2000's. See here: https://web.archive.org/web/20000815091817/https://www.locprecision.com/custom_engineering.htm.

View attachment 294754

Click to expand...

Anyone have an openrocket or rocksim file?

I may have a special ground crew to hepl prep Big Polish Mother. Most old timers will remember the man Ross. He will come if he feels up to it. he is not in perfect health but will try to come to LDRS

I talk to Ross regularly. I know his health issues. I really hope he can make it.

bob jablonski said:

I may have a special ground crew to hepl prep Big Polish Mother. Most old timers will remember the man Ross. He will come if he feels up to it. he is not in perfect health but will try to come to LDRS

Click to expand...

As in Ross Of Magnum?

Have you thought about laminating the motor tubes, and possibly laminating around all motor tunes to lock them together?

markkoelsch said:

As in Ross Of Magnum?

Click to expand...

Yep, Ross of Magnum.

What do you mean by laminating?

Laminate the motor mount tubes with fiberglass and epoxy. Then, I was thinking that you could wrap the three motor mount tubes with a few layers of glass to strengthen the entire assembly.

markkoelsch said:

Laminate the motor mount tubes with fiberglass and epoxy. Then, I was thinking that you could wrap the three motor mount tubes with a few layers of glass to strengthen the entire assembly.

Click to expand...

Then it stops looking like the original with three distinct MM tubes.

H_Rocket said:

Then it stops looking like the original with three distinct MM tubes.

Click to expand...

I may be wrong, but my understanding from Al's described failure mode of his King Viper, it isn't the separation of the tri-tube structure or compression failure of the tubes themselves. Both these failure modes would benefit from lamination. But instead the failure mode he described was a "punch through" of the fore end of the tube assembly through the dual centering rings located at the aft end of the main body. It is that junction that needs the reinforcement.

jimzcatz said:

For the uneducated, a Mother Lode is a 7.5" behemoth utilizing 90" of airframe with three 75mm tubes in a triangle configuration sticking out the back. Each of those have a 54mm motor mount.

Click to expand...

That's a big mother... uh... lode.

I am planning on using Phlexable Phenolic for the motor tubes and the section of body tube that the motor rings are in just to strengthen the area with the most stress. Just in case I want to go wacko and try L1000'S or some thing else like that on a future flight.

H_Rocket said:

Then it stops looking like the original with three distinct MM tubes.

Click to expand...

Yes, that is true, but it would be stronger. I am very much about function over form.

I have a still in the package 429 SS Loc, and this is what I am planning on doing when I get around to it.

Jim, Bob, Al (kinda reminds me of the names from the Waltons),

How's progress? Patiently awaiting photos, updates, etc. Still on track for LDRS in spring???

How much of the 3" motor tubes is exposed below the BT-7.51? 30", more????

Thanks and looking forward to watching progress!

-Eric-

cwbullet said:

Anyone have an openrocket or rocksim file?

Click to expand...

+1
Where is ktesh?

dford said:

+1
Where is ktesh?

Click to expand...

Um, China

ECayemberg said:

Jim, Bob, Al (kinda reminds me of the names from the Waltons),

How's progress? Patiently awaiting photos, updates, etc. Still on track for LDRS in spring???

How much of the 3" motor tubes is exposed below the BT-7.51? 30", more????

Thanks and looking forward to watching progress!

-Eric-

Click to expand...

Laying on top of the paint booth. I expect to start over Xmas.

The Cylon Rocketeer said:

Um, China

Click to expand...

Uhmm duh? The file smarty pants

Wondering if ktesh has multiple handles.

dford said:

Wondering if ktesh has multiple handles.

Click to expand...

Nope...

And not familiar with the kit.

Al, I'd love to see a successful flight of that project. LDRS would be a great time to show off.

rbazinet said:

Al, I'd love to see a successful flight of that project. LDRS would be a great time to show off.

Click to expand...

I built a new King Viper, but never had the guts to do the 3 X K550-ish again and keep to mid level I's. I plan on having it done. Feel like whipping up 3 x 54mm 1200NS loads in that nice white of yours? I'll buy the chemicals.

rbazinet said:

Al, I'd love to see a successful flight of that project. LDRS would be a great time to show off.

Click to expand...

Sorry for the off topic post:

Rob - I tried replying to you but you have PM's turned off.