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Fluting Left HS Ribs
21st August 2008
Worked this afternoon but I’m going to do my best to do something on the project every day so out the garage for a quick session after dinner.
Bought a nice little engineers set square to check flanges on ribs etc. Much easier than using my big one. Used the handseamer to bend the flanges on the HS ribs to 90 degrees. Fluted the ribs for the HS except the root ribs which are not drilled yet. Have to wait and see where the holes will be then flute in between.
- Left HS ribs fluted.
More HS Fabrication
20th August 2008
Trimmed and polished HS-710 and HS-714. Experimented a bit with different methods (hacksaw, vixen file, sander, scotchbrite wheel in die grinder etc). Finally settled for hacksaw to remove most of the ‘wedge’ then vixen file to trim lines. Sander for the radius and Scotchbrite for the tidy up and polish. I’m really pleased with how these turned out.
Before
...and after
Bent the magic 6 degree angle in the HS-702’s, HS-710 and HS-714 but only after reading the plans 5 times to make sure I bent them the right way!
Using my digital level to bend the 6deg angles
Countersunk the centre holes in the reinforcing angles and dimples the HS-702’s to match. First real dimpling and countersinking so there was LOTS of practice on scrap first.
Cuting and Trimming HS-702’s
19th August 2008
Trimmed HS-702’s. Used die grinder to tidy up the cut areas but slipped a couple of times and scratched the spar channels so had to polish these out. Lots of learning toady!
Before......and after
Shaping the HS-609’s
18th August 2008
Spent most of today’s effort finishing the HS-609’s. Shaped the radius at each end and spend quite a bit of time working out the best way to clean them up. Ended up using the die grinder and 3M wheels to remove all file and cutting marks and then rubbed them with the Scotchbrite pad. Cleco’d them back to the HS-603’s and matchdrilled. Also matchdrilled the elevator hinge brackets.
Started on the HS front spar also. Cleco’d and drilled the HS-710 and HS-714 to the HS-702 spar channels.
Marked the bend line on the HS-702’s and then spent some considerable time just reading the plans and getting my head around the trimming that is required on the HS-702’s. That’s tomorrows job!
It Begins!
17th August 2008
Well I’m officially underway…..the clock has started (not that it’s a race) and building has begun on RV7A ZK-OMG.
Clamped ready for drilling
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Drilling the VA-146 assembly
 I’m going to prime the VA-146 bearing so I’ll have to stop here as I don’t have the primer yet. I’m going to follow Van’s suggestion and get a rattle-can of etch primer for these small one-off jobs.
