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Caltex Lumba Lumba
Ahoy friends! I found this pristine Sterling kit from Old Model Kits, and since it's a boat I have wanted to build since I was a lad, I knew I needed to get my grubby little hands on it! It is a thing of beauty, everything is still in bags, undisturbed since 1980 or thereabouts.
Dumaspittman
9 months ago
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Judy B
This is my first boat in a few years, It's based on a hull by Chuck Steffen.
Dumaspittman
9 months ago
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Members Blogs
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Caletex Lumba Lumba
It's the old Sterling kit, light as a feather, sans plywood, but now that I have the hull glassed and looking great, I can say it was not too hard.
)EDITOR)
This is a colossal lie, one of the biggest ever told...let's face it, is was more sanding than anyone can imagine. This is the first kit he's built since 1975. So I can tell he is learning, sometimes he just turns to this AMAZING website, picks up some gigantic tip that he will use now, or on the next build, a Shelly Foss, it will go together that much quicker and smoother.
This hobby is truly too much fun!
}}END OF EDITOR'S FUTURESPLAINING}}}
I have inside knowledge.
This is her story, at least the parts that make me look good.
Dumaspittman
6 months ago
Recent Posts
π Caltex Lumba near finished video!
3 months ago by
πΊπΈ Dumaspittman (

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Here she is, I still have to do the little things, but the railings are done and a lot of the details are filling in.
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π¬ Re: 1954 35' Chris Craft Cruiser.... 1/10 scale
5 months ago by
πΊπΈ Dumaspittman (

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What a GEM!!!
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π The Caltex Lumba makes progress
5 months ago by
πΊπΈ Dumaspittman (

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Hi everyone, I hope you all have a great holiday season!π
I have done some detail work on the Lumba, still have a few things to polish and add, still haven't figured out what to do to put in the windows properly on the sides. I need a 3D printed bezel to make the line perfect...I want this as perfect as I can make it. If anyone knows someone who could print them for me, I would appreciate any ideas you folks might have.
I removed the lead-acid 12 volt battery and am using two 7.4 volt NiMH now, it is so amazing. The boat is balanced now and I can move it pick it up without throwing out my back again. This boat is going to fly, I will be very careful with it, as it is overpowered. You can tell she is much happier boat now, not ponderous and plowing like she did with the lead acid.
I will be posting images of her on the pond as soon as possible, side windows or not. I guess a router might do it for me on the windows, hmmmm...but I am looking for perfect edges. It is very importantπ€πππ
Peace everyone, thanks for your time!
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π Dual independent speed control set up
5 months ago by
πΊπΈ Dumaspittman (

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Big Rich is an amazing resource, give him a call...he is MACK Products, and all his stuff is skookum!
bigrichmodels@optonline.net
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π Source for 3/32 reed accent strips
6 months ago by
πΊπΈ Dumaspittman (

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Hello everyone! I hope good things are in store for you all, a new boat, a new love, something grand.
I have a question:
Does anyone have a source for very thin, 3/32 or thereabouts strips which in the Sterling CTLL kit were identified as "reed" strips, 3/32. They are perfect for edges and accents and they can take a bend without being steamed. If anyone knows a place that has this type of material I would really appreciate any info you can provide.
Thanks!ππ€ππ
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π Mtronics Viper Marine 20 esc for brushed motors
6 months ago by
πΊπΈ Dumaspittman (

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Love your WatchCat!πππ
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π Battery Placement
6 months ago by
πΊπΈ Dumaspittman (

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As per advice, I am trying this configuration first as it seems to have the best return from roll. I removed a lot of the material from the keel in a section, taking one rib out with it to get the battery CG as low as I could. I am happy wioth the result so far. I will make changes as needed.
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π¬ Re: Smit Nederland
6 months ago by
πΊπΈ Dumaspittman (

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WOW! OMG that is a stunner. What a friend you have!ππππ
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π¬ Re: Speedy Lumba!
6 months ago by
πΊπΈ Dumaspittman (

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Wow! That is so awesome, I appreciate all the items in your comment. I notice she has a tendency to roll, and her cute tumblehome does not help, so I am going to be trimming her out by keeping things as low as possible. I put the motors midships as far forward as I could and almost on the hull, I cut through 3 or 4 ribs. I didn't get the low angle I was looking for, but f there are any ride problems I will move things. I am working on the details trying to get the curves in the cabin, the rain channel that curves down. I want it to be so perfect, I am getting lost in every detail, but damn it's a blast. Once all the hard work is done, I don't feel the pressure of do-or-die things like the planking, I approach it with caution!
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π Mtronics Viper Marine 20 esc for brushed motors
6 months ago by
πΊπΈ Dumaspittman (

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Have you tried the guys at Harbor Models In So Cal? They ship everywhere and are awesome!
https://www.harbormodels.com/ |
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π Lock Nuts on Props
6 months ago by
πΊπΈ Dumaspittman (

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I thought so! It always pays to check.
Thanks.
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π Lumba's Hull Finish
6 months ago by
πΊπΈ Dumaspittman (

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π Lock Nuts on Props
6 months ago by
πΊπΈ Dumaspittman (

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I have a question that I could use some advise on. If I use lock nuts on props, do I need to also use Locktite? The screws are part of a rather high powered system with 800 motors driving 1.5 inch props with dogs.
Thanks!
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π¬ Re: New Boat
6 months ago by
πΊπΈ Dumaspittman (

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Nice work!
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π Speedy Lumba!
6 months ago by
πΊπΈ Dumaspittman (

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I decided to over power her since she has so much displacement and rides so high she can really carry some cargo. Two 800 motors and nice props give her the speed I was looking for, and if I want to re-motor her, that is no problem. She rides perfectly draft wise, so I am chuffed with the sheer power I have in my hands, almost too much to even hold back. I am interested in how she will ride under power in the lake. I may have to trim a bit but I think it's a very positive development.
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π Lumba pilothouse
6 months ago by
πΊπΈ Dumaspittman (

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π Lumba stuff
6 months ago by
πΊπΈ Dumaspittman (

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π Some shiny Lumba video
6 months ago by
πΊπΈ Dumaspittman (

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π More Lumba pics!
6 months ago by
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π More Lumba pics!
6 months ago by
πΊπΈ Dumaspittman (

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π A few shots of Lumba getting her motive power
6 months ago by
πΊπΈ Dumaspittman (

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Here's a couple of short video that hide a lot of issues ^8-)
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π¬ Re: Fiber or Fibreglassing Results
7 months ago by
πΊπΈ Dumaspittman (

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Thanks for the advice, I will get some asat, as Ricky from Trailer Park Boys used to say.
Your Chris in your thumbnail is great. I want to build one, and I am also always trying to find a good sized model of a 1970's Hatteras or a Chris Craft Constellation. I have never seen a good model or hull for a 1970's on Chris Craft. They are so awesome, the big ones from the seventies! They filled a slip, there was no space left. Big serious boats. Your model is superb, I want a big Chris like yours!
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π New Caltex Lumba Lumba Blog
7 months ago by
πΊπΈ Dumaspittman (

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π New Blog for the Lumba!!
7 months ago by
πΊπΈ Dumaspittman (

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I am over here, and I don't want you to miss the Lumba, she just got paint, and I hope you will follow the blog, not sure how this works, I am not good at tech! Peace!
ere's the results of the second application of Total Boat resin or the well sanded first layer.
I tried Bondo, which helped with leveling and was easy to sand. I am always looking for something sand-able.
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π Fiber or Fibreglassing Results
7 months ago by
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π The Sterling Caltex Lumba Lumba
7 months ago by
πΊπΈ Dumaspittman (

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Hi! I am going to post a lot more of the Lumba soon, I have been making what for me are positive strides. I love that hull, and I just finished glassing it up and doing a lot of leveling.
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π Hello from overheated California!!
7 months ago by
πΊπΈ Dumaspittman (

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I am going to post a lot more of the Lumba soon, I have been making what for me are positive strides. I love that hull, and I just finished glassing it up and doing a lot of leveling.
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π Caletex Lumba Lumba
7 months ago by
πΊπΈ Dumaspittman (

Petty Officer 1st Class)
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It's the old Sterling kit, light as a feather, sans plywood, but now that I have the hull glassed and looking great, I can say it was not too hard.
)EDITOR)
This is a colossal lie, one of the biggest ever told...let's face it, is was more sanding than anyone can imagine. This is the first kit he's built since 1975. So I can tell he is learning, sometimes he just turns to this AMAZING website, picks up some gigantic tip that he will use now, or on the next build, a Shelly Foss, it will go together that much quicker and smoother.
This hobby is truly too much fun!
}}END OF EDITOR'S FUTURESPLAINING}}}
I have inside knowledge.
This is her story, at least the parts that make me look good.
▲
β©β©
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This member will receive 1 point
for every like received
π¬ Re: Sterling Lumba is looking better!
7 months ago by
πΊπΈ Dumaspittman (

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Thanks for the motor advice! I appreciate it!π
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π¬ Re: Sterling Lumba is looking better!
7 months ago by
πΊπΈ Dumaspittman (

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The windows are my greatest fear, I have seen them done well and not so well. I am going to ease into it, making it first gen solid with the windows as black blanks. I know, I know, it's cheating, but soon I will cut it. I think it will make for easier pumpkin-carving after it is glassed up. I spent hours getting it straight, and slicing into it is not going to be un-stressful! I appreciate the encouragement.
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