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Slope MOMs Racing - Lets get this going!

I haven’t started the flapped version from Aloft yet, but I just finished building the original version without flaps, mostly following the very helpful tips shared by Ollie / OribaSJ88.


In case it is useful to anyone, I’m happy to share what I did. I’m sure RafaelAvila will provide much better and more complete instructions, so please take this only as my personal build notes from one successful build.


For the original version, these are the carbon fiber reinforcement lengths I used. I’m guessing the flapped version may use similar reinforcements, but I have not confirmed that yet.


Basic specs


Span: 1065 mm
Length: 689 mm
CG from LE: 55.6 mm
Area: 209 in² / 13.5 dm²
V2-1: 565 g, 13.7 oz/ft²
V2-2: 535 g, 13 oz/ft²


Carbon fiber usage


Wing
— 6 mm x 705 mm / 27.75”
— 2 mm x 215 mm
— 2x 2 mm x 98 mm
— 2x 6x1 mm x 98 mm


Horizontal stab
— 3 mm x 95 mm
— 2 mm x 65 mm
— 6x1 mm x 65 mm


Vertical stab
— 2 mm x 35 mm


Fuse
— 2x 1.5 mm x 600 mm / 23.625”
— 2 mm x 615 mm / 24.25”


A few build tips from my process. I’m sure there are many ways to get to the same result, so this is just what worked for me:


  1. I first dry-fitted everything with no glue to make sure all parts fit well, including the carbon fiber reinforcements.
  2. I started by gluing the wing servos in place, then assembled the wing from one tip to the other. I used a few drops of thin CA and placed a bright lamp behind the parts so I could see how the CA wicked through the joint. I also used medium CA between each wing section. The only thing I would emphasize is to be careful not to glue the carbon fiber before the full section is fully inserted and correctly positioned.
  3. I used 30-minute epoxy to glue the wing to the center section of the fuselage.
  4. I then assembled the fuselage from the tail section toward the nose, using the same general method I used for the wing.
  5. After that, I installed the horizontal stab and vertical stab.
  6. Finally, I installed the elevator servo and programmed the plane.

Again, this is not meant to be an official build guide, just some notes in case they help someone else while we wait for the more complete instructions.
 

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The version we sent out is a little different, especially on carbon. So don't get to worried when the above does not match your model.
 
OK - time to pick a date. I was thinking it would be good to give you all a month with the kits to build them, and get some flights in on them before the first race. Does that sound OK? Basically puts us in the end of June, start of July.
 
I haven’t started the flapped version from Aloft yet, but I just finished building the original version without flaps, mostly following the very helpful tips shared by Ollie / OribaSJ88.


In case it is useful to anyone, I’m happy to share what I did. I’m sure RafaelAvila will provide much better and more complete instructions, so please take this only as my personal build notes from one successful build.


For the original version, these are the carbon fiber reinforcement lengths I used. I’m guessing the flapped version may use similar reinforcements, but I have not confirmed that yet.


Basic specs


Span: 1065 mm
Length: 689 mm
CG from LE: 55.6 mm
Area: 209 in² / 13.5 dm²
V2-1: 565 g, 13.7 oz/ft²
V2-2: 535 g, 13 oz/ft²


Carbon fiber usage


Wing
— 6 mm x 705 mm / 27.75”
— 2 mm x 215 mm
— 2x 2 mm x 98 mm
— 2x 6x1 mm x 98 mm


Horizontal stab
— 3 mm x 95 mm
— 2 mm x 65 mm
— 6x1 mm x 65 mm


Vertical stab
— 2 mm x 35 mm


Fuse
— 2x 1.5 mm x 600 mm / 23.625”
— 2 mm x 615 mm / 24.25”


A few build tips from my process. I’m sure there are many ways to get to the same result, so this is just what worked for me:


  1. I first dry-fitted everything with no glue to make sure all parts fit well, including the carbon fiber reinforcements.
  2. I started by gluing the wing servos in place, then assembled the wing from one tip to the other. I used a few drops of thin CA and placed a bright lamp behind the parts so I could see how the CA wicked through the joint. I also used medium CA between each wing section. The only thing I would emphasize is to be careful not to glue the carbon fiber before the full section is fully inserted and correctly positioned.
  3. I used 30-minute epoxy to glue the wing to the center section of the fuselage.
  4. I then assembled the fuselage from the tail section toward the nose, using the same general method I used for the wing.
  5. After that, I installed the horizontal stab and vertical stab.
  6. Finally, I installed the elevator servo and programmed the plane.

Again, this is not meant to be an official build guide, just some notes in case they help someone else while we wait for the more complete instructions.
Roberto,
Aerodynamically, your version is basically the same as those printed at Aloft. And, some of those numbers are correct (CG and size and such). However, some of the lengths of carbon fiber are different for the version I printed for you. Best to let the Aloft guys replay because they made changes that I'm not entirely clear on.

Ollie
 
So guys, this wasn’t originally a project we were planning to sell, so some dimensions may be a little off — possibly slightly bigger or smaller.

I know I left the fuselage carbon rods longer on purpose so you can cut them to whatever size you prefer. Personally, I leave them as long as possible because I like to run the rods all the way to the tip of the fuselage on the inside — all three of them, the two side rods and the bottom one.

I also reinforce it quite a bit with medium CA.

The vertical stabilizer rods were also extended a little to add more stiffness.

Here are the measurements I have from when I built mine and Wayne’s.
The linkage is included in the kit — a 3mm x 1.5mm carbon rod to transfer the movement to the elevator.

1780343800410.webp


I kindly ask that you double-check everything and, as already suggested, do a dry fit before gluing anything together.

In some kits, I included a few extra pieces of 1.5mm rod so you can also place them inside the fuselage and reinforce the internal structure a bit more. However, I don’t think I included them in every kit, as they were just some leftover pieces I had here.

I’ll do my best to start the build thread today, and for those who haven’t done it yet, we’ll start with the wing hinges using masking tape, the recommended glue (E6000), and a few cotton swabs to help spread the glue more evenly.
 
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Here is the build thread i just started. ill do the updates later today.

 
Guys, I think I made a small mistake during printing — some of the nose cones ended up coming out a bit smaller haha, but nothing major.

it’s not that the smaller one is wrong. It is actually correct and can absolutely be used. You may just need to add a little bit of tape underneath to make it fit better.
I modified the longer version because I felt it would work better being slightly larger. So technically, you don’t have the wrong one — you just don’t have the updated version that I modified.

If you have this one here

1780513159772.webp



then you have the old version.



The new one is this one here.

1780513208561.webp


Please let me know if you have the wrong one.
I can send the correct one with your next order from us.
Just remember to leave a note on your order so I can include the right one.
i cant send just replacement. since it have no profit, i cant afford send the noses for free, im sorry.
Otherwise, you can also pick it up from me here at the shop or at our next race event.
 
Last edited:
I have the wrong one.

The next event should really be based on an open design that we can print ourselves.

I'd rather pay a small event fee and print it myself than pay you to print the planes and replacement parts at cost.
 
Guys, I think I made a small mistake during printing — some of the nose cones ended up coming out a bit smaller haha, but nothing major.

If you have this one here

View attachment 26654


then you have the incorrect version.



The correct one is this one here.

View attachment 26655

Please let me know if you have the wrong one.
I can send the correct one with your next order from us.
Just remember to leave a note on your order so I can include the right one.
i cant send just replacement. since it have no profit, i cant afford send the noses for free, im sorry.
Otherwise, you can also pick it up from me here at the shop or at our next race event.
Rafael

What about sending out the stl for just the (correct) nose cone? You don’t really lose control of the design but you sidestep the issue of shipping new nose cones out.

I have *four* of the wrong nose cones so this would def help me out a lot and would be the most expedient way for me to get the right part. Least amount of work for everyone, lowest cost.

Thanks!
 
Rafael

What about sending out the stl for just the (correct) nose cone? You don’t really lose control of the design but you sidestep the issue of shipping new nose cones out.

I have *four* of the wrong nose cones so this would def help me out a lot and would be the most expedient way for me to get the right part. Least amount of work for everyone, lowest cost.

Thanks!
it’s not that the smaller one is wrong. It is actually correct and can absolutely be used. You may just need to add a little bit of tape underneath to make it fit better.
I modified the longer version because I felt it would work better being slightly larger. So technically, you don’t have the wrong one — you just don’t have the updated version that I modified.

The cone is attached here — you can download it. Use 0 infill, 2 walls, and 0 bottom layers.
 

Attachments

Last edited:
it’s not that the smaller one is wrong. It is actually correct and can absolutely be used. You may just need to add a little bit of tape underneath to make it fit better.
I modified the longer version because I felt it would work better being slightly larger. So technically, you don’t have the wrong one — you just don’t have the updated version that I modified.

The cone is attached here — you can download it. Use 0 infill, 2 walls, and 0 bottom layers.
Awesome thanks. I only spent a few min with the nosecone and I was quite puzzled as to how it would fit... maybe it was closer to fitting than I realized.

Anyway thanks for posting the updated part, I'll be all set now!

One question, what filament should I use for the nosecone?
 
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