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July 12 2017
 
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March 26 2017

Inverted Fun

My first Helis
learning to fly a "new" ESky Belt CP (2008) with extra long training gear
flying the Belt CP 2 years later (2010)!
First Big Electric
Tiny, but stable and very durable!

Modified g20, FBL, TT, with Trex profile canopy

Stretched G20 to 700mm
FBL StrG20 stretched next to stock G20
StrG20 has stroker motor 22cc @ 3 hp
another view
Using Rail 696 mains

FBL StrG20 showing V1 pinion block
FBL StrG20 showing V1 bottom frame upgrade

Main gear bolt on mount for Jewel generator for G20/G30 belt tail
this fits G30 belt tail...

Radikal FB head blade root bolt hole fix
bronze bushing upgrade to Radikal Fly Barred Metal Grip

20ei Zenoah Titanium Connecting rod
Titanium alloy (G5) 20ei Zenoah Conrod blank
Center drilling
Boring big end of Ti Conrod
Center drilling Conrod small end

g20 Titanium conrod blank next to stock conrod
setting outside profile
Big end profile milling
profile cutting small end

profile milling of rod arm
cutting radius on big end
Stock steel conrod and Titanium alloy conrod in front
finished alloy bearing races prior to heat treatment

Finished Titanium alloy connecting rod, 30% lighter than stock and stronger
Version 1 of stroker crank prototype for 20cc up to 22.5cc

Prototype Titanium stroker Crank for g20ei
hardened alloy crank shaft components and Ti/steel wrist pin
unfinished Titanium Crank Halfs
Test fitting of crank pin
assembled Ti stroker crank

Titanium crank throws 50% lighter with pressed in counter weights
excessive wear due to steel rubbing on Ti

Other g20 upgrades
Custom aluminum pinion block for Radikal
comparison to weak stock plastic block
custom triple bearing holder for tail shaft

v2 of aluminum g20 Pinion block
front view
bottom view
stock unit next to aluminum unit

g20 lower frame upgrade V1
custom lower frame with vertical supports made from 2024 alloy
stock G20 lower frame compared to custom unit.
double the weight but worth it.
2024 alloy is twice as strong as 6061 aluminum alloy

stock frame area prone to breaking is beefed up
prototype Frame installed!

g20 lower frame upgrade V2
custom lower frame with vertical supports made from 2024 alloy
side by side thickness comparison vs stock frame

Custom 231PUH engine cover
delrin cover
aluminum cover

fits 231 and 260

G20/G30 prototype torque Dampening main gear hub
stock aluminum unit on left
made from 41L40 alloy

Custom 3 shoe clutch for g20
custom 3 shoe spring clutch for g20
custom 3 shoe clutch alt view
separate components in clutch design

Custom 3 shoe clutch for G20/G30 for 59mm bell

Custom Stroker Crank from 20cc to 22cc with 3HP
4140 alloy
cutting diameter
Center drill
clearance drilling

Bore for crank shafts
Cutting Crank bearing rest
marking for bandsaw cut
polishing surface

crank "blank" removed from lathe
Lining up all axis prior to machining
Center drilling for big end pin
Boring big end for conrod pin

milling counter weight sides
Other side
finish cut
cutting for piston skirt clearance

After bandsaw cut
Profile milling conrod end
Finished Profile cut halves
milling conrod width clearance

Finishing cut
Crank Halves 90% done
cutting flow angles on crank halves
Crank shaft "blanks" oil hardening alloy

turning outside diameter of rear shaft
turning thread diameter
ready for threading
cutting thread for start pulley

turning front crank shaft
taper cut for output shaft
Center drilling for threaded hole
finish cut for press fit

Iraq 04 - 05
Alpha misfits
getting help from EOD
IED detonation
50% of my tour

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