Jump to content

Boxing Clever


Tim Hooper
 Share

Recommended Posts

Turning to the fuselage top deck I've added subformers, a floor for the front hatch and a 1/16 x 3/16 spine.

img_6912.jpg

The deck is covered in 1/32 sheet. I made card patterns to determine the shapre before committing any precious balsa! Here's the front piece glued to the spine along it's centreline prior to bending the sides down.

img_6916.jpg

The rear piece has to cope with quite a tight curve at the rear end, so I dampened it with water first. No problems.

img_6919.jpg

The compound curve in the 'cockpit' area is fashioned from hollowed block, and the front cowl from a mixture of sheet and block. Lots of filler needed here!

img_6920.jpg

Here's the hatch removed. It has to be this long to allow access to the aileron servo leads, and the retaining clip for the wings.

Magnets hold the hatch in place.

........and that's it for this weekend!

img_6921.jpg

Link to comment
Share on other sites

Peter,

I thought about the little Cox, but it would scare the wildlife for miles around! face 3

More progress, in that I pinned the airframe together to check on the general proportions. Not too bad, although the wing does look a little over-sized.

1904009_10153642941732137_6033608197254688419_n.jpg

1782099_10153642941622137_2367570093098797909_n.jpg

10407712_10153642941847137_9180055316466628488_n.jpg

A quick check on the CG showed that the fuselage servos need to go in the rear fuselage, so I've cut mounts to suit.

Anyway, I rooted in the Gubbins Drawer and fished out some scraps of Solite. The colours suggested a retro feel....

10929897_10153647039392137_8968585227657439761_n.jpg

10525696_10153647039482137_2995384697979345098_n.jpg

10941013_10153647039332137_2542636229084670461_n.jpg

Link to comment
Share on other sites

Peter,

I'm a regular gannet when it comes to clamps!

Anyway, it's finished!

AUW is 180 grammes (6.3oz) - a little more that I hoped, but probably due to that hefty (45g) battery.

That gives a loading of 10.1 oz/ft, so it's going to need a fair airspeed to keep it aloft.

I've run the motor up on the Watt meter, and on a 4x4 prop it's drawing 46 watts.

img_6933.jpg

The pins in the tip plates are the easiest way to bablance the model.

img_6935.jpg

img_6942.jpg

img_6947.jpg

The aileron linkage. Just a piece of bent wire with a short length of servo wire insulation as keepers.

img_6952.jpg

The motor from beneath.

img_6954.jpg

The big battery means that the fuselage servos have to live in the tail. You can just see the 'keepers' that allow quick disconnection when the tail surfaces are removed.

img_6959.jpg

The hatch removes to give easy access to the 3S 450 pack - held in with a touch of velcro.

img_6963.jpg

img_6968.jpg

Okay, now it's a matter of waiting for suitable weather to see if it flies. Only then will I think about making a box for it!

Thing is, we're going to be very busy over the next few weeks. We're moving house, so there's a lot of work to be done.

tim

Link to comment
Share on other sites

  • 4 weeks later...

We're back! teeth 2

House move done and dusted, and first time to the field since Christmas - wahaaaaay!

So the Boxing Clever had it's maiden flight in the dull, but calm, conditions this afternoon. No probs. No drama.

The model is pretty rapid - much quicker that I thought it would be. MInd you, the 4x4 prop might be a little deep for it, so I'll experiment with something a little shallower in pitch.

So it loops, rolls, stall turns, does inverted, etc. I didn't push it too far, but it asll looks very promising.

tim

Link to comment
Share on other sites

  • 2 weeks later...

cymaz,

Sorry for the tardy reply, but yes, the bends allow for easy adjustment of the control surfaces.

I thought it was about time that I did something about the 'Boxing' part of the model's name, so I made a ply box measuring 500 x 150 x 100 mm, then fitted it out with foam cradles.

Here's the parts of the airframe as they fit within the box.

img_7013.jpg

The foam cradles CA'd in place.

img_7011.jpg

The model trying out its new home.

img_7015.jpg

I've fitted a hinged lid to finish the job off!

img_7005.jpg

Link to comment
Share on other sites

  • 1 month later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...