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K2Pete

Grumman Proposal LEM

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I've wanted one of these Proposal LEM models, for a long time ... and I started putting one together, all from scratch, 5 or 6 years ago. I didn't get too far.

3 weeks ago, I checked on Shapeways to see if some parts were available and didn't see anything offered, but I also didn't look too hard ...  :whistle:

 

2v2HoccWJxAnAAS.png

 

 

I used Xmas balls for the Crew Cabin and a short length of Plumbing pipe covered with Styrene for the Descent stage. And that's where I stopped 5 or 6 years ago.

 

2v2HoccmzxAnAAS.jpg

 

 

So I re-started it this month. This is the Aft portion ...

 

2v2HoccPvxAnAAS.jpg

 

 

... and for reference, I'm using just 4 or 5 images of this LEM.

 

2v2Hocci9xAnAAS.jpg

 

 

Just getting the subassemblies organized. The Crew Cabin is half a Xmas ball, squished in hot water to form an oval.

 

2v2Hocc7oxAnAAS.jpg

 

 

I would like this to be 1/48 and when I put it side by side to a 1/48 LM, oops, this is way-y-y too big.

 

2v2HoccDuxAnAAS.jpg

 

 

So I started over ... The Descent stage is 3.5" in diameter instead of 4" and it's all been scaled down, just a bit. The Crew cabin has been dry fit to see how it'll fit. I haven't figured out just how I'm going to create it though. There'll be a lot of rebuilding I know, but it's a start.

However, this is where I get the FUN out of this hobby. Building something from scratch using whatever I can find ...

 

2v2HoccAUxAnAAS.jpg

 

 

But I got the idea to use another piece of ABS to act as a spacer between two halves of a Xmas ball. I rounded off the edges to help increase the gluing edges.

 

2v2HocctMxAnAAS.jpg

 

 

... and this is where I am. The Crew Cabin will need sanding and filling and sanding and Filing but this may just come together pretty quickly.

 

2v2Hoccc2xAnAAS.jpg

 

Till next posting

Pete

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Very cool!

 

I remember seeing the LEM concepts in the History Center in the Plant 35 basement in Bethpage. They also had the concepts for the Shuttle, which was ultimately awarded to NAA.

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Cool ideas, Pete, especially with the Xmas balls. einfall.gif

Soon it's time again ... up040577.gif

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Another very interesting build. I love the scratchbuilding.

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Thank you gents!

And thanx CJ for the links. I have a few of those already and I also have what seems to be a few versions ... an original model which looks faded and worn as well as some newer versions. I'm gonna go with the older, original version.

 

A screenshot of a Grumman documentary with the LM engineer, Tom Kelly.

 

2v2H2UbEqxAnAAS.png

 

 

After gluing the 2 half spheres to the middle ring, I glued in a sheet of 0.010" styrene to level it up ... then lotsa filing and sanding

 

2v2H2UHHqxAnAAS.jpg

 

 

The forward hatch is just a piece of 1" tubing

 

2v2H2UHaFxAnAAS.jpg

 

 

The side wall proportions were off by about 1/8" so I made new side walls. I also started fitting a landing gear ...

 

2v2H2UHZyxAnAAS.jpg

 

 

Cutting the allowance for the Crew Cabin ...

 

2v2H2UHQ5xAnAAS.jpg

 

 

 ... checking the fit ...

 

2v2H2UHEnxAnAAS.jpg

 

2v2H2UHuWxAnAAS.jpg

 

 

The legs are just dry fit in there ... and it's sitting on a footprint of the 1/48 LM.

 

2v2H2UHKrxAnAAS.jpg

 

 

Starting on the Landing Gear legs ... but I ran out of 3/32" tubing so will have to wait till it comes in ...

 

2v2H2UHbNxAnAAS.jpg

 

 

I have about 7 old broken down LM kits from ebay and one of 'em still had a Descent Stage engine nozzle ... so I used this for this model.

 

2v2H2UHedxAnAAS.jpg

 

 

I cut it to length and it's soaking in Brake Fluid to remove the old paint.

 

2v2H2UH9NxAnAAS.jpg

 

I'm gonna have to wait till some Spheres come in from Plastruct ... I need 'em for the fuel tanks on the sides and underside ... the last time I ordered something from them it took about 18 weeks ... I hope it won't take THAT long this time.

 

Thanx for taking a peek here!

Pete

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Good Job Pete. I will love to see how it turn around.

 

Do you plan to do an interior cockpit, Some sort of "What If" Clear glass will look fantastic.

 

Ricardo   

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It's good to see you here Ricardo! And thank you!

But no, this won't have an interior. I'd like it to look like the wooden prototype model. The windows will be either decals or painted on.

 

 

I've spent days filling and sanding the Crew Cabin ... there must have been a couple of spots that didn't adhere well and it didn't want to sand flat, so I filled and sanded and Primed 4 or 6 times ... but by george, I think I've got it!

 

2v2H3HEVqxAnAAS.jpg

 

 

I attached the landing gear but there are two gears that I was so excited to glue down, I forgot to include the shocks ... I'll have to figure out how to add 'em later ...

I also glued on the Descent engine skirt.

 

2v2H3HEhFxAnAAS.jpg

 

 

With new side panels, and supported on its own 5 legs ... the Ascent stage is just dry fit.

 

2v2H3HELyxAnAAS.jpg

 

 

I've been doing a lot of figuring and fiddling around with fit and needed to glue the Crew Cabin together ...

 

2v2H3HErNxAnAAS.jpg

 

 

I also wanted a new floor for the Crew Cabin ... so I cut one out of .020" styrene

 

2v2H3HHoVxAnAAS.jpg

 

The Crew Cabin subassemblies. The aft portion is getting supports glued in ...

 

2v2H3HEzMxAnAAS.jpg

 

 

There are some wild compound curves and I'm trying to work out how I'm gonna do 'em ... Milliput may be the solution.

 

2v2H3HEjrxAnAAS.jpg

 

 

To add the missing shocks, I cut the struts, 3 of 'em, and slipped on the tubing and reglued. Easy-peezy and probably stronger too!

 

2v2H3HH2hxAnAAS.jpg

 

2v2H3HHUgxAnAAS.jpg

 

2v2H3HHvLxAnAAS.jpg

 

 

The lower 'skirt' has to be carved and fitted ... 

 

2v2H3HH9WxAnAAS.jpg

 

 

The fit has to be adjusted to allow for wrapping around the curved Crew cabin and this takes a lot of back and forth. The gaps, however minimal, will still need either Tamiya Putty or Milliput ... and then filling and sanding ... 

 

2v2H3HH3CxAnAAS.jpg

 

 

Today I'll glue the Crew Cabin together and we'll go from there.

 

2v2H3HEM8xAnAAS.jpg

 

I figure I'm about 40% done ... still a ways to go! But I'm loving this hands-on build. No 3D-staring-at-a-screen for me ... this is fun for me!  :yahoo:

 

Till next post!

Pete

Edited by K2Pete
missed a word

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All those sanding and filling... it will be worth in the end. Great job so far.

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This is looking great!

 

I completely agree with your hands-on building comment.

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Thanx dnl42!

 

 

I glued the Ascent stage together and filled the bigger gaps with scraps of styrene 

 

2v2H3fLb3xAnAAS.jpg

 

2v2H3fLKvxAnAAS.jpg

 

2v2H3fLQ2xAnAAS.jpg

 

2v2H3fLZoxAnAAS.jpg

 

 

And this is as far as I'm gonna go till the Plastruct Acrylic spheres come in. I'll use them to make the fuel tanks on the sides and bottom.

The last time I ordered from Plastruct, it took over 4 months to get in my hands ... so, fingers crossed that it won't take THAT long!

 

2v2H3fLp9xAnAAS.jpg

 

2v2H3fLwMxAnAAS.jpg

 

So I won't be doing any filling or sanding till the Fuel tanks get built and then I can do all those finishing tasks at the same time ... but I'm pretty happy with this so far ... 

 

But I just noticed ( how is it that I notice these things when the images are posted and NOT while I'm working on the darn thing ...  :bandhead2:  :doh:  ) that the forward hatch may be a tad too small ... hm-m-m ...

 

Any way, till next time! Thanx for taking a peek!

Pete

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15 hours ago, K2Pete said:

Thanx dnl42!

 

 

I glued the Ascent stage together and filled the bigger gaps with scraps of styrene 

 

2v2H3fLb3xAnAAS.jpg

 

2v2H3fLKvxAnAAS.jpg

 

2v2H3fLQ2xAnAAS.jpg

 

2v2H3fLZoxAnAAS.jpg

 

 

And this is as far as I'm gonna go till the Plastruct Acrylic spheres come in. I'll use them to make the fuel tanks on the sides and bottom.

The last time I ordered from Plastruct, it took over 4 months to get in my hands ... so, fingers crossed that it won't take THAT long!

 

2v2H3fLp9xAnAAS.jpg

 

2v2H3fLwMxAnAAS.jpg

 

So I won't be doing any filling or sanding till the Fuel tanks get built and then I can do all those finishing tasks at the same time ... but I'm pretty happy with this so far ... 

 

But I just noticed ( how is it that I notice these things when the images are posted and NOT while I'm working on the darn thing ...  :bandhead2:  :doh:  ) that the forward hatch may be a tad too small ... hm-m-m ...

 

Any way, till next time! Thanx for taking a peek!

Pete

 

Hello Pete:

 

The bug is looking fine!!!

 

I have two small suggestions.

 

There is a thruster between the porch an the decente stage body 

 

18430.jpg

 

Grumman Early LEM Design

 

 

Check the front docking tunnel. I think that it's too long  

 

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index.php?action=dlattach;topic=6812.0;a

index.php?action=dlattach;topic=6812.0;a

index.php?action=dlattach;topic=6812.0;a

 

But I could be wrong its a concept model 😂🤣😀😁

 

Ricardo 

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Thanx Manfred! But you are the Master of Accuracy! It's a pleasure, as well as a learning experience, to watch your model come together!

 

Ricardo, thanx! I agree that the forward tunnel is too long, by about 3 mm and I was prepared to just file it down. But the diameter is my concern. Currently the hatch is 3/4" in diameter and the only other tubing I have is 1" diameter, which may be too large. But I think I have a solution for attaching the larger tubing, if I feel it's more accurate, without removing the glued on tunnel / hatch.

 

And I know about the thrusters, antennae and front porch ... those are details I'll wait to make after I get the Acrylic spheres.

 

And thanx for the images of the LEM prototype ... I was not aware that the upper tunnel / hatch had a bevel on its aft side ... or is it broken or damaged? I'll take a closer look.

Pete

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6 hours ago, K2Pete said:

I was not aware that the upper tunnel / hatch had a bevel on its aft side ... or is it broken or damaged? I'll take a closer look.

To me, that exposed bare wood with irregular edge and additional crack in last 2 images are the hallmarks of damage.

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7 hours ago, K2Pete said:

Thanx Manfred! But you are the Master of Accuracy! It's a pleasure, as well as a learning experience, to watch your model come together!

 

Ricardo, thanx! I agree that the forward tunnel is too long, by about 3 mm and I was prepared to just file it down. But the diameter is my concern. Currently the hatch is 3/4" in diameter and the only other tubing I have is 1" diameter, which may be too large. But I think I have a solution for attaching the larger tubing, if I feel it's more accurate, without removing the glued on tunnel / hatch.

 

And I know about the thrusters, antennae and front porch ... those are details I'll wait to make after I get the Acrylic spheres.

And thanx for the images of the LEM prototype ... I was not aware that the upper tunnel / hatch had a bevel on its aft side ... or is it broken or damaged? I'll take a closer look.

Pete

 

Pete is damage 

 

des-5.jpg

 

アポロ月着陸船 プロトタイプD Apollo Lunar Module (LM) Prototype D

 

dls0k4exz9b31.jpg

 

https://images.app.goo.gl/tu447Z1rhNp69igG6

 

sfxmodels_1962lem03-lg.jpg

 

sfxmodels_1962lem01-lg.jpg

 

Check these albums Pete

1963 Apollo Lunar Excursion Module (LEM) COAM (C1M1, C2M4) 5-leg BUG LEM

 

Ricardo 

Edited by Ricardo Salamé

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