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ULTIMATE 42025
I am sure somewhere, somehow someone will ask if this creation flies. **sigh** (feeling resigned)… no, it does not and will not fly. Lego will not, as others who are much more qualified than myself have demonstrated, fly in its current form. So, let’s just avoid the conversation completely, shall we?? Thanks for looking…. Hope you enjoy!
About this creation
SPECS:
Overall Length: 96 studs
Wingspan: 114 studs
Weight: 2.7 kg
Estimated piece count: ~3500

Introducing the Ultimate 42025. Although similar in some aspects to the 42025, it is also a whole new model for many reasons. First, there are so many changes it really became more of a MOC than a modified set. Also, as can be seen by reading below, I based the build on a real-life plane that I think is dissimilar than the one TLG had in mind when they created 42025.



Like many others, I really liked this TLG’s 42025 (Cargo Plane), and thought that it has much to offer in terms of functionality and variety in genre. We get tons of wheeled and construction-type Technic vehicles, and sometimes it is nice to see other types of machines. However, the set did not get the attention I thought it would. Despite the set being, in my opinion, a very cool set, there are many shortcomings that I thought would be fun to try and fix.

First, the obvious. 42025 was too small. Not really faulting anyone, I simply think that it was not a flagship set and therefore its size had limitations imposed on it. If it were a flagship set, perhaps it would be a little bigger. Maybe not the size of the one I built, but bigger nonetheless. My Ultimate 42025 is roughly 3500 pieces. I never really count every piece used in my MOCs, but estimating piece count from weight gives one a pretty good estimation. Also, as I have written before when you increase the size of a build the piece count increases exponentially (for example, build a model on 1/10th scale instead of 1/8th scale, you save use only approx. 25% of the pieces one would use for an 1/8th scale model). I have increased the size of 42025 by approximately 33%. Every dimension. Length, width, both of the fuselage, wingspan, wingspan width, tail, etc….. An increase of only 33% can easily increase the part count three fold. Lastly, I purchased three 42025 sets to make this possible, and only had about 2-300 parts left over. I know I also had to use many parts from other sets as well….. so 3500 pieces is likely pretty accurate if not an under-estimation.

Next, I did not like the front end. Too me it was too sharp, too pointy to be a cargo carrier’s nose. If you look at a forum post dedicated exclusively to this set:

42025 post

you can see there were several theories about what kind of cargo carrier this model was based on. Some ventured a guess on the Airbus C295:



and others the Alenia C27-J (Spartan):



In my opinion, LEGO 42025 looks much more like the Airbus C295 than the Spartan. It is slimmer, and has a more pointy nose. As can be seen in the specs and pictures below, it is also smaller (although more narrow and longer, it can carry more things of low height than the Spartan. Like personnel or pallets that are not too tall).







However, the Alenia Spartan is the better fit for what I wanted, so that is the direction I took. It is more stocky, has a more blunted nose, and is just the better cargo carrier IMO. The Airbus can’t carry like a Hummer or anything that has any height or width. So, as you browse through the pics below, keep in mind this is the model I wanted to base my MOC after.

Another problem with 42025 is the propellers. Three blades on a fairly large carrier is too few (poor efficiency). I am sure there are some out there, but those in the class that I just specified all have more blades than three for each propeller. I wanted to fix this, and base my model on the real thing. Here is a pic of the initial six-bladed propeller idea that I came up with:



Both the Airbus C295 and the Spartan use a Scimitar blade design, with a pretty horizontal rather than vertical plane (relative to the ground). This can be seen in the pics above. Such a design is also used by the famous Hercules aircraft.



They almost look as though they are completely horizontal (parallel with the ground) rather than vertical. 42025 is completely the opposite. Not only are the blades too few in number, but they are completely vertically positioned. I don’t fault anyone….. initially, as can be seen above, I did not see the solution either. However, playing with the propeller I noticed that it better resembled the real Spartan’s props when I placed them parallel to the ground: (TLG’s propeller has no curve to them and therefore cannot 100% resemble the Scimitar design used on the aircrafts of interest. To see perhaps the most comprehensive information on LEGO propellers look no further than the work of Jeremy McCreary ) Moving them in this fashion gave them a swept-back appearance.



Playing with the prop further I noticed that when all connectors are positioned at an angle to another, rather than straight across from another, better resembles the Scimitar technology used for these planes. I am quite happy with the end result:





I also dedicated more time to the looks of this MOC. 42025 had tons of gaps in it, which easily could have been filled. I usually spend much more time to functionality opposed to looks, but this build I tried to achieve a better balance. Still, it is Technic, so some limitations on looks is expected.

Okay….. enough talk dang it!. Here are pics of the overall plane:





















On the forum post listed above, readers will notice that another frequent complaint of the set was that there was no functional tail rudder. Consider that problem fixed. With the larger size, I was also able to use a L PF motor rather than a M motor for the whole model. Although the speed (RPMs) is more or less the same for each motor, tests showed that because of the added weight of the props, and added friction because the drive line had to be changed a bit to fit everything a new design, the M motor just did not do the props justice. As you will also see in the video, the L motor was able to vary the prop speed nicely, and also hit a pretty nice top speed.





Bigger size meant bigger cargo hold area. This looks more like a true cargo carrier that 42025 was meant to be:





And….just to give you an idea how much cargo area there actually is….ya’all know how big Frigate Carriers are:





Well… I can fit several in The Ultimate 42025 :)

Thanks for looking... please remember to rate and comments are always welcome.













Comments

 I like it 
  August 12, 2016
Very impressive technic MOC!! Love the shaping and scale and the props especially!
  February 21, 2016
Cool spaceship- but get it out of my pIrate RPG!!!!!
 I like it 
  December 13, 2015
Cool like the build and the info is helpful.
 I like it 
  September 11, 2015
What a great MOC. Love all the technic technique.
 I made it 
  September 10, 2015
Quoting Jeremy McCreary Unrelated to this MOC, I'd like to see if you and I can figure out why my replies to your comments on my MOCs either take days to show up or just vanish into thin air. Eager to fix this, as I always appreciate your input. Of course, nothing even remotely offensive in any of the replies affected, and it never happens with anyone else -- at least not at my end. For example, my 2 replies to your comment on my cockpit tops are still MIA 3 days later. Probably best to continue via private e-mail. My address is mocpages@cliffshade.com.
I sent a message to the address. Hope you received it.
 I like it 
  September 8, 2015
Unrelated to this MOC, I'd like to see if you and I can figure out why my replies to your comments on my MOCs either take days to show up or just vanish into thin air. Eager to fix this, as I always appreciate your input. Of course, nothing even remotely offensive in any of the replies affected, and it never happens with anyone else -- at least not at my end. For example, my 2 replies to your comment on my cockpit tops are still MIA 3 days later. Probably best to continue via private e-mail. My address is mocpages@cliffshade.com.
 I like it 
  September 8, 2015
This MOC gets a 5 in my book. Amazing functions and details. Yes its quite different from the Technic set. Hats off to you sir. I envy your Technic skills.
 I made it 
  September 7, 2015
Quoting Jeremy McCreary Excellent redesign and write-up, Nerds -- and thanks for the plug. This set's been on my wanted list for a while, but now I'd rather have your version. Looks appropriately ponderous. Especially like the lifting nose. BTW, don't see a video on this page, but I do see a suspicious video-sized blank area near the top.
Hmmm.... just checked it and it worked for me.. and I have had other viewers comment in other places that they saw the embedded video just fine. MOCpages is rife with problems.... maybe it is having another bad day....just plug in "Ultimate 42025" in youtube if you really want to see the video.
 I like it 
  September 7, 2015
Funny how this excellent set is kind of under the radar... You've done a super job of injecting a dose of reality to it, although I have to confess I do prefer the original's more elegant nose; for all that yours is certainly more accurate.
 I like it 
  September 7, 2015
Ah, I can see the video now that I'm on my laptop, not my phone. Forgot to mention that the attention given to the props really paid off, even if it doesn't fly -- or so you say. Did you try launching it from the roof?
 I like it 
  September 7, 2015
Excellent redesign and write-up, Nerds -- and thanks for the plug. This set's been on my wanted list for a while, but now I'd rather have your version. Looks appropriately ponderous. Especially like the lifting nose. BTW, don't see a video on this page, but I do see a suspicious video-sized blank area near the top.
 I made it 
  September 7, 2015
Quoting Gabor Pauler Whaoo, this was a fully seasoned engineering project! I love the lifting nose and the analytic description. There is one advice: please consider in the future using curved and smooth system tiles as outer plating instead of technic panels, as they are a trap. At the first sight, it is easier to handle technic panels, and they save some space allowing thinner walls of the model, but finally they look very faceted and they are very inflexible in size. This is an inherent design error by Lego Group, not yours.
Much thanks Gabor. Your point is very well taken. I agree, system elements look much cleaner and would do a better job aesthetically for this model. However, I really am old school when it comes to Technic. Mixing Technic with system elements is great, but IMO follow a certain way of building that is not entirely Technic. It is an approach to building that, again, IMO has been popularized by great builders such as Sariel, M_longer, and others, but not true Technic building. I like keeping it 100%, or at least as close to, Technic as possible, such as Sheepo and other builders. Like Sheepo's models, his could also probably be improved with system elements, but he chooses to only build in Technic. Sometimes that is unavoidable, however. As can be seen, even in Ultimate 42025 I had to use some system tiles, slopes, etc. because there just was not an useful alternative in Technic panels.
 I made it 
  September 7, 2015
Quoting Henrik Jensen Very nice further Development of the 42025 set! I really enjoyed your Little video showing the functions, especially the raising of the nose section. I also like your propeller design. One thing however still needs improvement; the tailrudder. IMO the tailrudder looks too small and the leading edge of the rudder must be thinner. You could hide the linkage for the rudder under the roof of the cargobay. Anyway a beautifull Technic model.
Hmm..... good point. The rudder does seem small in some pictures. HOwever, are you considering that most pics, such as the main pics, are taken at an angle, therefore 3D in nature, accentuating the nose and making the tail naturally looking smaller just because the tail is further from the camera lens than the nose? I say this because the model in whole really was scaled to the real thing, not perfectly, but really close. (Ex: the length to wingspan ratio of the model (96 divided 114 studs) is around 84%. This same ratio in the real plane is around 81%. The whole model as similar, real-life scaled properties). In picture #18, taken directly and not at an angle, you can see the tail looks proportional.
Nirds forprez
 I like it 
Michael Rutherford
  September 5, 2015
Great build and excellent presentation. The shape of the fuselage is perfect, and the landing gear doors are very impressive. Excellent display of the aircrafts MASSIVE cargo capacity as well. 7 space ships. Astounding! Again, well done sir! Attack!
 I like it 
  September 5, 2015
Very nice further Development of the 42025 set! I really enjoyed your Little video showing the functions, especially the raising of the nose section. I also like your propeller design. One thing however still needs improvement; the tailrudder. IMO the tailrudder looks too small and the leading edge of the rudder must be thinner. You could hide the linkage for the rudder under the roof of the cargobay. Anyway a beautifull Technic model.
 I like it 
  September 5, 2015
Awesome! I know almost nothing about Technic, but those propellers are great!
 I like it 
  September 5, 2015
Superb stuff, love the engineering behind it. Well done!
 I like it 
  September 5, 2015
Whaoo, this was a fully seasoned engineering project! I love the lifting nose and the analytic description. There is one advice: please consider in the future using curved and smooth system tiles as outer plating instead of technic panels, as they are a trap. At the first sight, it is easier to handle technic panels, and they save some space allowing thinner walls of the model, but finally they look very faceted and they are very inflexible in size. This is an inherent design error by Lego Group, not yours.
 I like it 
  September 4, 2015
Superb, more I can not say at the moment.
 I like it 
  September 3, 2015
Excellent job! Very accurate! Your comment on the fact Legos cannot fly struck a cord. I've been looking for a solution for some time, but only the Lego company itself has succeeded in it. Don't get to excited - they used helium balloons. But interesting nonetheless. You should look into blimps, maybe!
 
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