Build 4 - Crimson Skies: Heaven's Spade - Dragster (Med. Fighter) design by FoamyDM
Plan Link: HS-Dragster_Full.pdf
Reason for Building:
I have built the Heaven's Spade Carrier and HS-Sparrow as part of the FTFC19-Fantasy Design Build Challenge. I had this designed and cut out, ready for assembly. This one a hybrid speed build Kit. Which is mostly complete, but complete untested. Most of the details of assembly are set up right. However, I will have to adjust and tweak. Like the front cowl and the power pod attachment. I will run this as if it were a 'cuda and see where it goes...
Preparing the Pre-cut "kit"
the rear line is a guide for the trailing edge bevel . Keep the paper on for glue adhesion. same with the middle section and leading edge.
on the 10th this month I took a moment to shape the trailing and leading edges with a hot iron.
This is is the progress I made last night, from the cut parts. Taped and formed. Looks a lot like a Laine's planes - 'Cuda
I need to figure out how I will mount the wing, and power pod... It will be a B pod plane, but it may end up with B. Also the cowl on the plans was too wide by the papered section plus 3/16". from the center seam.
I really like how this has come together. I didn't plan parts of it out too well, so I will mount the servos vertical with the arms pointing to the wing tip. with one canard servo slaved to the elevator. I should have a few form guides to place along the fuse, to guide the shape. and give a pocket for the power pod. it really did well on it's own, but it might stiffen the squareness.
Electronic, and CG glide test.
Feb 12th update:
I did not accomplish as much as planned last night.
I cut the wing holes. The fit wasn't what I wanted. I ended up centering servos. I have some trimming to do and a motor mount to add. It's progress, but less than I wanted. I have decided to use Elbow macaroni for the engine exhaust tubes. No pics. Oh
CG is calculated at 1.25" behind the middle front of the wing.
Feb 13th update:
Got my chance for more work late, but I was able to get it closer.
More taping, added Ailerons, cut wing to accept vertical stabilizer. Plan to add a fuse bottom guide to ensure it stays perpendicular to the wing. I did not add control horns, servos,and the motor guide yet. plus the blower and machine gun. Lastly, I need a cockpit too. I think I will put the wing tie downs there. Here are some progress glamour shots.
Feb 18th update:
I worked on this at the onset of the weekend and Discovered that My motor mount ideas worked. Mostly. Where the B/C motor pod is tucked in, the bottom is the same height as the spar. So I removed the foam and top layer where the pod sits. and then build a pod housing. (still keeping the bottom paper, and packing tape reinforcement) so now I am all set to put in the rudder, and glide test. As it was raining all weekend I decided to work on other things, like then next build, and other project design concerns. At this point it is almost time.
Took some pictures of the pod mounting. while I'm sure my formers will function, you can always try the method pictured.
The bottom of the pod sat level with the cannard bottom, so to accomodate I cut out the top and foam of the cannard area under the pod with the packing, this produced a secure result.
While I reinforced the pod walls for the skewer at the pod end, I didn't reinforce the fuse. I recommend you that.
Feb. 25 & 26th:
I finished putting the servos in, and extensions, cut an access port for the servos. and then tried to fit an internal spot for the battery... it is mounted at the VERY back of the bottom of the Vertical Stab base... that puts it nose heavy still. I think I will change the ESC and use a 4 cell.
Rating - I just rated the build level on this (while not entirely done I used a number of advanced build techniques and formwork to get this close to the image.
I was going to maiden this last night I went to connect the batteries, and the extender is 2mm too short and disconnected. I took it as an omen. I am very proud of this build, and I suspect it will fly like a 'Cuda: Fast and Dangerous. So no Maiden Video.