Tag Archives: skywalker

And We’re Back!.. with the Skywalker 1880 From FPVModel.com

My replacement FPV platform is finally here.. after losing the 1900 Skywalker 2014  due to a bad GPS caused by the vibration of  a bad motor (bad bearings) activated by a bad operator (yours truly who ran out of TX juice), I decided to use the same platform but this time with better components (specially the motor!).   The platform remains the 1800 Skywalker 2013 CF tail boom (and wooden pan for the FPV cameras) with the elevator on top of the rudder but this time from  FPVModel.com.

Here’s how it came in:

20141013_102257

and the contents:

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Here’s the Lowdown:

Wings

1) The 1880 wings seems to be thicker and looks like it also has a slightly longer root chord than the 1900 wings.

2) Unlike the 1900 wings it doesn’t come with a CF strip on top for added strength although I don’t think its needed considering its thickness and the fact that it also has a longer dihedral, covering 1/3 of the wing.

3) Because of the large dihedral, this wing doesn’t come with flaps, it only has enough room for the the ailerons.

Tail Section

1) This is the T-tail version, with the elevator attached on top of the rudder.  I think this is a good idea, in my SW 1900 the elevator is attached to the base of the rudder. This has a tendency to get skewed by the tall grass I occasionally land in.

2) The connecting plastic mechanism to snap into and remove the elevator to the rudder seems innovative although looks a little bit flimsy to me.  Looks like I need to do a little mod on this.

All the usual parts seems to be complete.  Will post the components list next.

 

 

Project Scratch-built Skywalker (update 1)

I began making a scratch-built Skywalker (SW) rc plane based on plans from rcgroups.  “IF” it flies and wont weigh a ton from my usual over design tendencies ill be using it for long range.  My target is it should have a base, empty weight (sans ALL electronics) of not more than 600g 800g*. Or a total flying weight of not more than 2.2Kg fully loaded with all the RC, Servos, 5000mah 4S LiPo,  APM2.6 and FPV gear etc.

So far I’m done with the cutting of the main wings and tail assembly (rudder and elevator) which took a ridiculous  amount of time: I couldn’t decide whether to put the elevator on top of the rudder (like the pre-CF tail 2013 SW) or below the tail (somewhat like the 2013 SW). Eventually decided to do the latter so i won’t have to strengthen the rudder too much. The downside is the elevator will now be more prone to landing (or crash!) damage.

Here’s the tail section:

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A closer look at the the attachment points: the end of the tail spar on the right end is a ballpoint pen casing where a barbeque stick glued to the CF spar can be inserted. This is secured by PVC/plastic strips glued to the elevator and secured to the base of the rudder with a screw and nut.

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..and attached to the base of the fuselage last night:

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Target Empty Weight:  600g 800g.
Weight at this stage: 175g

Balance left: 625 g

* found out that the 2012 186cm SW is 700g empty.