|Jul 15, 2014, 11:26 PM|
RCPlaneBuilder Wicked Yak 55 build log
New from RCPlanebuilder.com
The new Yak 55 is the newest design by Kevin Henrie of RCPlaneBuilder, the designer of the Slicko.
The Yak has a span of 32 inches and a length of 30 inches. The construction of the plane is EPO/EPP. My plane is in one of the color schemes available , a tribal green/white/black pattern on the top and sides and a distinct black/white pattern on the bottom.
The build I will be doing will be the stock set up using all the supplied hardware and some of the RCPB power package.
First impressions of the kit:
The fit and finish of the kit is very nice, in fact with some dry assembly the plane almost snaps together. The wing spar is pre installed in the wing and consists of two carbon fiber blades one is the leading edge for most of the wing. The sides of the horizontal part of the fuse is sided with carbon fiber as well, also pre installed. All the hinged surfaces need to be hinged, but the edges are bevelled very nice and have a clean crisp cut to them that will allow very tight accurate hinges. The elevator also has a piece of carbon fiber in it as well to provide rigidity.
Kevin has done a very nice job on this plane and it shows his attention to detail. Its my pleasure to do the build assembly instructions for this plane.
Here is Kevin flying the prototype of the plane on a 3s600 set up.
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|Jul 15, 2014, 11:27 PM|
day one of building
First day of building
tools needed to complete this project:
Hobby knife, Flexible foam glue, CA glue and kicker, Scissors, Ruler or strait edge of some kind, several cans of beer(must remain full to do the job right) or pop cans, and a towel or rag for clean up of excess glues.
Step 1. Lay out everything and confirm its all there, you should have a wing with both carbon spars preinstalled, two ailerons, two verticle halves of the fuse. a horizontal part of the fuse, an elevator, and a rudder. In the small parts bags you should have enough clevises and z-bends to make 4 push rods, 4 control horns, you should have 6 push rod supports, 4 motor mount supports, 1 motor mount, and 1 complete set of landing gear.
Step 2. Cutting and trimming before assembly. (2.1)There are two blocks that need to be removed in the wing panel. The two holes are there to allow the halves of the fuse to be installed. (2.2)At this time it would also be recommended to clean out there 4 slots in the front of the plane for the motor mount supports.
Step 3. Hinging all the surfaces that can be at this time. Blenderm is supplied in the kit, first off start by centring the control surface that is to be hinged to its mating surface.(remember there is a top and bottom to the surfaces) (3.1) Run a strip of tape centred on the hinge line the length of the hinge, do not stretch the blenderm into place as to not cause any warping. (3.2) Next after the top half of the hinge line is done fold the control surface over and place a small strip of blenderm onto the ends of the hinge line. Make sure the two pieces of tape touch each other in the middle to ensure a very tight hinge. Repeat this for all the hinge lines. The only hinge line you can not do at this time is the lower one on the rudder.
Step 4. (4.0) Test fit the lower half of the fuse, the wing and underside of the horizontal part of the fuse. Make sure the front sections of the two fuse halves line up flush with each other. This is important to ensure a good fit for the motor later. Once the fit is the way you like it , apply foam glue to the surface of the wing that mates to the horizontal part of the fuse and place it in place. (4.1) Next apply a liberal amount of glue to the spine of the lower fuse half and install it to its flush location. Wipe away and excess glue at this time(every drop extra is weight you dont want). At this time you need to align the wing so it is perfectly centered to the fuse and place the beverage containers on the wing directly beside the verticle part of the fuse. They need to be full to ensure a proper force is applied to keep this glue joint tight and square. At this point here I called it a night and allowed my glues to cure properly.
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|Jul 17, 2014, 12:13 AM|
- 32" wingspan
- 9.3 - 9.5 oz AUW
- wing cubic loading 5
- 440mAh - 600mAh 2S - 3S 25C+ battery
- 90w - 120w -/=30g motor
- 2ea 7-9g servos tail 9g servo ailerons
- 12a -15a ESC
|Jul 20, 2014, 09:12 PM|
The Wicked Yak 55 is now available online! I have a promotional discount for $10 off for the first week or 2.
|Yesterday, 12:31 AM|
Thanks again Kevin!
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