Betterfly

Here are some pictures of a HPA provisionally called Betterfly as in “It better fly after all this  effort”  being built by David Barford. More pictures will be added as they become available. His reluctant assistant is his son, Christopher.

Betterfly 100_3789

Betterfly 09 001

Betterfly 09 002

Betterfly 09 003

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Betterfly 09 004

Betterfly 09 006

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Some images of the construction of the HPA.

Winding machine

Electric motor

Winding prepreg

Betterfly 100_1162

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Oven

Oven

Propeller blade

Propeller blade

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Swing arm

Chain wheel

Fuselage

Aluminium tube

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Rudder

Billet

Finished swing arm

Heater for oven

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prop sections 250 in total

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Some photos of David’s extraction of a stuck Aluminium tube from the Carbon fibre spar.

1-removal channel+winch

2-end of channel

3-pully end

4-removal plug

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5-start up removal

6-winch

7-tube removal

8-location ring for spacer tube

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9-getting there

10-its out

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A set of photos of the construction of Betterfly.

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16- 006

16- 007

16- 009

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16- 021

Dscf5450

Dscf5452

Dscf5453

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Dscf5460

Dscf5463

Hpa3 006

Hpa3 012

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picture 005

picture 015

picture 018

picture 409

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picture 414

picture 429

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Pictures of construction of Betterfly

1 Paper template

2 template on depron

3 sellotape template to foam

4 finished part and feet

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5 empty garage ready to start

6 foam support and carbon end rib

7 ply stiffner used to align spar

8 scribed line is the spar orientation - rib is at 5 deg

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9 sliding ribs onto spar

90 large ribs on spar

91 yoghut pots string and glue

92 setting rib angle with plumb line and sized triangles

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93 plumb line and triangle

94 one side done onto the other note mirror image

95 adding stringers

96 mirror image

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The latest photos of Betterfly 2012

Wings

Trial assembly

Front view

View along the wing

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Hpa at Marlborough 001(r)

Hpa at Marlborough 008

Hpa at Marlborough 009(r)

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