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chochmah's blog
Posted by chochmah | Feb 08, 2014 @ 03:25 PM | 4,625 Views
Sketchup Rendering of a
Blohm und Voss BV P.144
maybe something to model at some point in the future? shame there is no airliner version.


Posted by chochmah | Mar 05, 2012 @ 09:23 AM | 3,943 Views
I'll add to this first post as the project progresses. Not sure yet if this will make it off the pc, a couple of stability/pitch/cg/thrustline issues might prevent me from actually building it. I'm finished with drawing all the parts and now I'm creating assembly instructions (like spacing) for myself.

The P1078C is a Flying Wing project from Heinkel that never made it off the drawing board. (how fitting)

Model Specs:
  • wing loading at 2300g: 69g/dm^2 / 23oz/ft^2
  • Span: 1.34
  • Propulsion: 90mm Changesun 12 Blade EDF on 6s or 8s. (possibly 4s)
  • Weight: I'm aiming for 2300g but everything under 3000g would still be ok.
  • Materials: Balsa 2mm/1mm, Plywood 2mm, Depron 6mm/2mm and CF-Spars.
  • Dollystart and bellylanding.
  • FSA=5286mm^2, outlet=4757mm^2 (~90%FSA), Inlet=5093mm^2+1000mm^2 from the rounded inlet area.
  • Thrustline +5°

Development:
  • I'm using a model I found on the internet as a starting base and modified it to fit the thrust tube etc.
  • currently I'm drawing up plans in sketchup. I'm trying to put the work into into the plans upfront so the assembly will be quick and painless.
  • Very large elevons to allow for a noseheavy CG. Similar projects encountered problems with elevator-control.
  • Two battery compartments under the cockpit and above the impeller to stay flexible CG-wise.
  • Assembly should happen without a rig. The two square carbon wingspars are supposed to provide as a leveling horizon for the construction of the wings. This has worked quite well before on another project
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