1. VMA-C210X J3 Cub & L4 Grasshopper 09-15 ARF - Additional Information

In general "Additional" Information is:

  • In addition to that found in other documentation related to this product,
  • Often reflects feedback &/or questions from users of the product.

Subject to the Conditions of Use, please review the attachments and related articles listed below.

COPYRIGHT
Copyright Richmond RC Supply Ltd. All rights reserved.
 
1.1. VMA-C210X J3 Cub & L4 Grasshopper 09-15 ARF - Quick Release Wing Strut Set #VMA-C210YWSQ

Question: I travel a great deal and take my VMAR C210X 09-15 ARF with me in my RV. When I'm home, I remove the wing and undo the struts from the fuselage. But when I am travelling I like to remove the struts from the wing as well. I've been undoing the screws and it works OK but I was wondering if you have a strut set that can be removed more easily and quickly for traveling?

Answer: Yes we do. For modelers who need to frequently remove the wing struts from the VMAR C210X 09-15 ARF, we have released a new Quick Release Strut Set. For the J3 Cub these struts are Yellow (#VMA-C210YWSQ) and for the L4 Grasshopper these struts are Drab Green (VMA-C210DWSQ). The quick release struts are easier to install and can be removed more quickly that the standard struts. Colored to match the model, the quick release struts use Z-Bend ends for the wing attachment points (2 per strut) instead of using screws and brass plates.

Fitting the quick release strut set requires minor modification to the wing attachment points (4).

Instructions for modifying the wing attachment points:

  1. Wick CA into & around the 4 plywood washers where the struts attach to the wings.
  2. Use a 3/32" drill bit to enlarge the screw holes at the attachment points.
  3. Use a 7/64" drill bit to further enlarge the screw holes to 50% depth.
  4. Test fit the struts and then remove them.
  5. Wick thin CA into the drill holes to toughen the wood or if the strut Z-bends become loose in the holes.  

Caution: be careful with drilling. Don't drill through the wing or your fingers!

1.2. VMA-C210X J3 Cub & L4 Grasshopper 09-15 ARF - Stage 1 Wing Assembly Joining the Wing Halves - Step 1G Leading Edge Dowel
Question:  Stage 1 of my C210X Manual for the J3 Cub and L4 Grasshopper shows a notch in both wing roots but does not show me when to install the small leading edge dowel. What should I do?

Answer: Your version of the Manual is missing Step 1G and its accompanying picture. After you have completed Step 1F, please do the following: 
    1. Locate the leading edge dowel in the Wing Parts Bag. The dowel is made of wood and is about 5/8 in [16 mm] in length. 
    2. Wait for the 30 minute epoxy you applied earlier to dry. 
    3. Trial fit the wing halves together. 
      • Carefully insert the dowel into the pre-drilled hole (formed by the channels in each wing root) in the leading edge. 
      • Mark the dowel where it meets the leading edge of the wing when the dowel is about half way inserted. 
    4. Remove the dowel and separate the wings.
    5. Carefully position the dowel into the pre-drilled channel in one wing half.
      • Position the dowel consistent with the reference mark you made earlier.
      • Secure the dowel into place with a small amount of medium thick CA+ such as Pacer Zap-A-Gap.
      • Make sure the dowel is reasonably straight (perpendicular to the leading edge).
      • Let the CA+ dry.
    6. From this point on you can proceed with Stage 2 where you apply 30 minute epoxy to the wing roots, spar joiner etc and mate the wing halves.
      • When doing so make sure you apply 30 minute epoxy into the visible portion of the dowel channels and over the dowel itself prior to mating the wings.
1.3. VMA-C210X J3 Cub & L4 Grasshopper 09-15 ARF - Stage 12 Installing Electric Motor and ESC - Step 12C Mounting Screw (Bolt) Set
Question: Stage 12 Step 12C of my C210X Manual refers to installing four bolt and washer sets for mounting the motor. These bolt sets are stated to come with the kit but I did not get these in my kit. What's the story here?

Answer: The reference to the bolt sets (mounting screws) in your version of the C210X Manual is incorrect. These mounting screws come with the Power Module and Power Pack but are not included with the kit. Each motor is different and requires different mounting hardware and methods. We do provide a blank firewall set that can be drilled to suit nearly all motors.  
Mounting Screws - What to use on VMM-111B18VM VMAX Brushless Motor

Question: I have a VMAX #VMM-111B18VM VMAX Brushless Motor. What do I need in the way of mounting screws?

Answer: There are a several options for this depending on what you have in mind:
a) VMAX VMAX #VMM-111B18VM VMAX Brushless Motors that are supplied with VMAX Power Modules and VMAX Power Packs come pre-mounted with the appropriate screws for the motor.
 
b) The threads are 3mm and generally four 3mm x 6-12 mm machine hex head screws with washers will work.
 
c) We sell a Mounting Screw Set (#VMM-111B18MS) consisting of four 3mm x 10mm hex head screws. Hex head screws should be used with flat washers under the heads.
 
d) We also sell a Mounting Screw Set (#VMM-111B18MT) consisting of 16 mounting screws. Four screws in each of four different sizes/styles.
  • 3 x 10 mm Hex head machine screws (4) (like VMM-111B18MS)
  • 3 x 16 mm Hex head machine screws (4) (longer version of above)
  • 3 x   6 mm Phillips countersink head screws (4) (for flush fitting)
  • 3 x 10 mm Phillips countersink head screws (4) (for flush fitting) 
The four different sizes/styles allow for thicker firewalls, multi-layer firewalls where the screw heads must be countersunk between the layers, etc.
 
This set provides for a very wide range of different mounting methods.
 
Hex head screws should be used with flat washers under the heads.
 
CAUTION: When mounting motors using any method, ensure all fasteners are tightened securely. Check for vibration free operation of the motor. If not vibration free, reseat and retighten all fasteners and ancilliary components such as props and gears. Tighten fasteners firmly but don't strip the threads. Use medium strength thread locker on all metal to metal fasteners.

 

1.4. VMA-C210X J3 Cub & L4 Grasshopper 09-15 ARF - Stage 12 Installing Electric Motor and ESC - Step 12J Bolt Length
Question: Stage 12 Step 12J of my C210X Manual for the J3 Cub and L4 Grasshopper refers to installing four bolts for the power module. These bolts are stated to be 50mm long. My bolts are only about 30mm in length. What's the story here?

Answer: The reference to 50mm long bolts in your version of the C210X Manual is incorrect. The bolts are 30 mm long when used in the J3 Cub and L4 Grasshopper. This allows the tapered cowl to be mounted without contacting excess bolt length. The picture and instructions of Step 12K are correct in showing the separation between the fixed fuselage firewall and the nuts to be approximately 22mm. It is this spacing of the nuts and power module firewall at approximately 22mm from the fixed firewall in the fuselage that is important, not the actual length of the bolts themselves.
 
1.5. VMA-C210X J3 Cub & L4 Grasshopper 09-15 ARF - Stage 15 Installing The Servos - Step 15B & 15C