The beginning of something fun - one evening's worth of work.
This kit was given to me by a buddy who lives near Ottawa.
It is a 2-meter glider with flaps.
Servos and receiver were sourced.
No power in the nose, a motor mounted on a removable pylon may be fitted later; plans will need to be researched.
This is the plan, other than the full flying tail, it is very similar.
https://outerzone.co.uk/plan_details.asp?ID=8066
No flimsy transparent plastic triangle to assure a 90degree setting.
These are solid machined angle iron bars that were cut and faced for a perfect right angle on 4 sides.
Guy,
r e: "No flimsy transparent plastic triangle to assure a 90degree setting"
I always thought 90 degrees was 90 degrees as determined by the angle.... independent of the material used or the weight.
I did not know that a heavier object makes it more 90 degrees. ;)
Frank
Pylon designed; construction lines are shown.
Up thrust 3 degrees or so. More could be added with washers.
Uses the existing bolts holding the wing in place. The CG of the glider is at the front screw.
A slightly forward CG would result with the motor mounted.
Bottom will be 1/16 ply epoxyed to the pylon with triangular braces.
Lightening holes will be added for obvious reasons.
The pylon itself should be 1/16 ply sandwiched with 1/8 balsa - or the reverse to have 1/16 ply on the outside and 1/8 balsa in the middle ???.
Any suggestion welcomed, also on how to route the 3 wires from the motor to the ESC to be hidden in the fuselage. Or should it be mounted onto the pylon too ???.
Between work and other things, managed to start the wing.
More progress on the wing.
Photo #36 - Sub-component of the trailing edge. Metal ruler ensures all is straight.
Photo #37 - Middle section held in place with angle iron to ensure square one all sides: against the bottom spar and the trailing edge and vertical.
Progress on wing.
Long one-piece wing, flaps to be added.
Nice!
Flap action.
Only held with masking tape, proper hinges will be added later.
https://www.youtube.com/watch?v=327bl4aBaRA
Some progress.
Photo #72 - Initial set-up with only one servo, lacks flexibility.
Photo #73 - Could not resist a temporary assembly.
Photo #74 - Dual servo allows more flexibility.
Video showing how it will work: https://www.youtube.com/watch?v=KTBQiZIp9EM
BTW, yes
@Andy Hoffer the green tape will be replaced by an appropriate hinge.
Guy
This is why one should ALWAYS use a sanding block. ::)
Great advice. I have come to understand the value of this through many personal attempts to sand an area using my sandingfinger(s) method multiple times. It is one of those lessons where you wish that all sandpaper came with a BOLD warning sign each sheet (both sides) encouraging such a practice. (It happens with foam too.) Good thing there is always glue, more foam, or more balsa and sanding blocks.
When I tell myself I can do it this time without the block, I am usually wrong... Why do I keep telling myself I can do this this time?
I have sandpaper sanding blocks, popsicle sticks, dowels, etc. to help with my sanding chores. But the question is, will I always use them?
Great job Guy. I enjoy your builds...
Under the heading of "Been there. Done that" when it comes to sanding.
A sanding block sure helps but I now protect the areas at the edges that should not be touched with masking tape. At least there is some protection from the sandpaper and it gives you a warning that you got too close.
Keep going Guy. Nice project.
Frank
Quote from: GuyOReilly on March 25, 2022, 06:01:42 PM
Some progress.
Photo #72 - Initial set-up with only one servo, lacks flexibility.
Photo #73 - Could not resist a temporary assembly.
Photo #74 - Dual servo allows more flexibility.
Video showing how it will work: https://www.youtube.com/watch?v=KTBQiZIp9EM
BTW, yes @Andy Hoffer the green tape will be replaced by an appropriate hinge.
Guy
Thank goodness
@GuyOReilly . For sure it would be confused with one of
@Frank v B 's planes if you left the Painter's tape hinge in place! ;D
Andy
Covering done.
Not very happy with low heat covering material.
Radio installation another evening...
Ready for Maiden flight, once the batteries are charged...
Controls work in the correct direction.
https://www.youtube.com/watch?v=ROgyDRJ7wI8
Trial fitting of motor mount.
Looks about right, motor slightly ahead of CG location indicated on plan, some up thrust.
Now need to figure out the routing of the 3 wires... ???
Done!
Ready for Maiden Flight.
Using a 3-cell battery, CG slightly nose down as recommended by
@Frank v B .
Waiting for free time and good weather.
While not aesthetically pleasing, I would recommend using a plastic pull-tie to secure the wires to the pylon.
Quote from: Michael on April 08, 2022, 04:30:38 PM
While not aesthetically pleasing, I would recommend using a plastic pull-tie to secure the wires to the pylon.
Thank you for the tip
@Michael .
Fixed as suggested.
Well, the Maiden Flight did not go as planned...
Nothing broken, just my pride.
I need to figure out why it nose dived under full power.