· Home    · The Gallery    · Contact     · View Site Map                

 
Link Indicator
Link Indicator
Outline
Link Indicator
Cut-out Diagram
Link Indicator
3-View Drawings
Link Indicator
Chip Cotton's Skybolt
Link Indicator
Link Indicator
My Smoke System
Link Indicator
Link Indicator
Ribs Preparation
Link Indicator
Rib Templates
Link Indicator
Rib Templates Complete
Link Indicator
Wing Tip Bows
Link Indicator
Wing Tip Bows II
Link Indicator
Upper Ribs Complete
Link Indicator
Link Indicator
Lower Wing Rib Construct
Link Indicator
Spar Fabricating
Link Indicator
Drag Wire Blocks
Link Indicator
Right Wing I
Link Indicator
Right Wing II
Link Indicator
Drag Wire Drill Jig
Link Indicator
I-Strut Drill Jig
Link Indicator
Right Wing III
Link Indicator
Right Wing IV
Link Indicator
Right Wing V
Link Indicator
Right Wing VI
Link Indicator
Right Wing VII
Link Indicator
Right Wing VIII
Link Indicator
Right Wing VIIII
Link Indicator
Right Wing X
Link Indicator
Right Wing XI
Link Indicator
Right Wing XII
Link Indicator
Right Wing XIII
Link Indicator
Right Wing XIV
Link Indicator
Right Wing XV
Link Indicator
Right Wing XVI
Link Indicator
Right Wing Almost Done
Link Indicator
Right Wing Done!
Link Indicator
Link Indicator
Spar Fabricating
Link Indicator
Left Wing I
Link Indicator
Left Wing II
Link Indicator
Left Wing III
Link Indicator
Left Wing IV
Link Indicator
Left Wing V
Link Indicator
Left Wing VI
Link Indicator
Left Wing VII
Link Indicator
Left Wing VIII
Link Indicator
Left Wing VIIII
Link Indicator
Left Wing X
Link Indicator
Left Wing XI
Link Indicator
Left wing Done!
Link Indicator
Link Indicator
New Bench
Link Indicator
Splice Join Jig
Link Indicator
Spar Fabrication
Link Indicator
Upper Wing I
Link Indicator
Upper Wing II
Link Indicator
Upper Wing III
Link Indicator
Upper Wing IV
Link Indicator
Upper Wing V
Link Indicator
Upper Wing VI
Link Indicator
Upper Wing VII
Link Indicator
Upper Wing VIII
Link Indicator
Upper Wing IX
Link Indicator
Upper Wing X Done!
Link Indicator
Center Bay & More
Link Indicator
Topsy-Turvy
Link Indicator
Wing Finally Done!
Link Indicator
Link Indicator
Initial Wing Rigging
Link Indicator
Aileron Linkage & I-struts
Link Indicator
More I-struts
Link Indicator
The Welder from Hell
Link Indicator
Link Indicator
Aileron Templates
Link Indicator
Aileron Rib Construct
Link Indicator
Lower Aileron Build I
Link Indicator
Lower Aileron II
Link Indicator
Lower Aileron III
Link Indicator
Lower Aileron IV
Link Indicator
Lower Aileron V
Link Indicator
Lower Ailerons Done!
Link Indicator
Upper Aileron I
Link Indicator
Upper Aileron II
Link Indicator
Upper Aileron III
Link Indicator
Aileron Rib Anomaly
Link Indicator
Upper Aileron IV
Link Indicator
Upper Ailerons Done!
Link Indicator
Link Indicator
Instrument Panels
Link Indicator
More Panel Stuff
Link Indicator
Panels & Tank Painted!
Link Indicator
Throttle Quadrants & Harnesses
Link Indicator
Fitting Gauges
Link Indicator
Adding Shiny Stuff
Link Indicator
Smoke & Instruments
Link Indicator
Link Indicator
Seat Backs & Torque Tube
Link Indicator
Rudder Pedals
Link Indicator
Brakes
Link Indicator
Landing Gear Choices
Link Indicator
Starting Landing Gear
Link Indicator
Landing Gear Progress
Link Indicator
Landing Gear Ready For Tacking
Link Indicator
Gear. Heel Rails. Firewall
Link Indicator
Landing Gear Setting Toe
Link Indicator
Stuff & Landing Gear Done!
Link Indicator
Elbow Rests & Fuel Valve
Link Indicator
Smoke Tank & Fuel System
Link Indicator
Powdered Mount & Standoffs
Link Indicator
Stringers & Torque Tube
Link Indicator
Sheet Metal
Link Indicator
Sheet Metal & Turtle Deck
Link Indicator
Exhaust Ramp
Link Indicator
Upholstery
Link Indicator
Catching Up
Link Indicator
Link Indicator
Stabs Trims & Controls
Link Indicator
Stabs, Trim & Controls II
Link Indicator
Link Indicator
Powerplant
Link Indicator
Nosebowl & Exhaust
Link Indicator
Alternate Air Induction
Link Indicator
Link Indicator
2007 Recap
Link Indicator
2008 Recap
Link Indicator
To weld or not to weld..
Link Indicator
Skybolt Builders Manual
Link Indicator
Fuel Plumbing and...
Link Indicator
Lots of Stuff
Link Indicator
Link Indicator
Skydiving
Link Indicator
Web Design by Beej
Link Indicator
The TSA Sux...
Link Indicator
Visitors from the UK
Link Indicator
Biplane Expo 2008
Link Indicator
Biplane Expo Musings 2009
Link Indicator
Link Indicator
Link Indicator
Aviation Links
Link Indicator
My Favorite Homebuilt Story
Link Indicator
Link Indicator
How We Met
Link Indicator
The Visits
Link Indicator
Our Wedding Day
Link Indicator
About Us
Link Indicator
Oshkosh 2007 Musings
Link Indicator
Link Indicator
Canopy Redux
Link Indicator
Canopy II
Link Indicator
Link Indicator
Rudder Covering
Link Indicator
Fabric Work
Link Indicator
Link Indicator
Firewall Aft Work
Link Indicator
Instrument Panel Done
Link Indicator
Link Indicator
Link Indicator
 
short solo movie clip Latest Posts
9/6/2017
Fabric Work
1/26/2014
Alternate Air Induction
11/30/2013
Nosebowl & Exhaust
11/22/2013
Powerplant
url for Newsreader:: http://www.65degrees.net/skybolt/rss.asp What's this?
Latest uploaded pic Random Pic
short solo movie clip Movies Clips
My truck pulling days [1.24mb]
First Solo [5.98mb]
Lauries Tandem [9mb]
Latest uploaded pic Random Qoute
It is one thing to be in the proximity of death, to know more or less what she is, and it is quite another thing to seek her. Ernest Hemingway


Stabs Trims & Controls
1/28/2009

click for larger image
Trim tab in the wrong hole...

Having finish painted the rudder pedals, I decided next to tackle a relatively 'biggie', the empennage and controls. Of course, I am cheating a little since I am utilizing mucho parto's from this salvaged plane I have.

The rudder cable turnbuckles were removed, polished, lacquered and refitted. The rudder cables were then fitted, rudder and pedals locked at neutral, and the turnbuckles tensioned accordingly. At this point I discovered some binding with the cables on a tube as they exit to the rudder horn, so I have to add another pair of fairleads. Amazingly, there were no stops on this old fuselage, except for the elevator stops at the reverser.

Fitting the stabilizer was interesting, since the wires had not been labelled upon removal by the previous owner. I eventually worked out through trial and error where which wire went where, some fitted where they shouldn't, so the key was to find a fit that had optimum adjustment left on the threads, since the manufacturing process of these unique streamlined wires means no two wires are of the exact same length or thread length. Fun  :0|

Once the horizontal stab' was set and bolted down. I did notice a few things I didn't like:

1. Looking down the stab spar, through the tail to the other stab...I have a taper, like a slight 'sweepback' of the stabs. Although slight, this really annoyed me. I initially thought about upsizing the two front stab connector bolts from 3/16 to 1/4 so I could then move the stabs in at the front, this would bring the stab spar line straight, then I thought I may as well make a new small stab connector tube with the two bushings so i have blank tube ends to drill new holes through. Trouble is, when I dry-set the required position (linear spar line) with clamps, the travel of the stab was binding at the horn. So, having called in my IA/A&P buddy along with luckily finding an FAA designated inspector who was signing off a plane a few doors away, they advised me that although it obviously doesn't look right if you 'reaalllyyy look' down the spar line, it will not be noticeable whatsoever once covered, and since there is no binding when in the existing position, it isn't an issue.

2. The port elevator is lower than the starboard side :0|. This I will fix. Running a line across, the difference is 1/2". Luckily, when the starboard stab is clamped at neutral, the whole of the port elevator is off. This means there's no funky twist anywhere to fix, I just need to either weld a patch plate on the port elevator horn, or make a new horn, set the port elevator to neutral, then match drill through from the starboard horn.

3. The original elevator travel to the stops at the reverser is 29 deg up and 24.8 down, they should be 25 up and down. Down is ok, but I am going to cut off the stop tube at the reverser and weld on another to achieve the 25 degrees.

4. With the elevator at neutral, the rear control stick in the cockpit is not vertical, so I will be changing out one of the control connector tubes for a new one and adjusting its length to suit.

5. When the rear cockpit stick was vertical, the one in the front cockpit wasn't  :0\ it was off 4 degrees, to fix this, I would have had to make a new connector rod going through the torque tube, the easy way out was to simply heat bend the front stick slightly, it looks OK now.

I know this sounds like a bunch of crappy work on the original plane, but there are some good signs in the old build, the welding for example, is beautiful. I am scratching my head as to how one can achieve such a neat stack o dimes look, when for example welding something thin to something much thicker..boggles the mind. There are also signs of crappy post work by someone else: In the trim tab pic below, the steel web thing spanning the tubes is definitely a retro fit sometime later. I will be cutting it off.

I found a vernier trim tab mechanism in a box that came with the project, I found only one hole the thing could fit in in the cockpit [see pic above], and came to the conclusion after 3 million hours of playing with it that it was never on the original plane. There was a mysterious T-tube on the vernier deal which didn't seem to have a purpose, so I went browsing through some old Skybolt newsletters looking for ideas for trim, and there it was, a diagram of a vernier trim tab deal by Mac McKensie. The T-tube was meant to be welded to the side of the seat. Mystery solved.

I also have to modify the elevators for the trim tabs. Whatever hinge mechanism that was there is no longer there, and the hinge gap is way too big.

I was going to mention my attempts at welding, but I think that deserves another post of its own later... :-\


Making sense of the empennage...
Making sense of the empennage...
trim tab hinge gap...
trim tab hinge gap...

Latest uploaded pic Latest Pics
11/30/2013
go to page entryExtending and repairing the nose bowl.....
11/22/2013
go to page entryOn arrival.....
Latest uploaded pic Progress Diagram
click to view large diagram
- Latest Stuff
RSS Feed Reader
- The Real News
RSS Feed Reader
 Local TX Weather
Georgetown Weather Advisory:
RSS Feed Reader
Fair and 52 F.
Winds: North at 12.
Pressure: ".
Humidity: 45%.
Heat Index: .
Updated: Dec 15 2017, 10:56 am CST.
65degrees.net 2017. All rights Reserved. Web Design by 65degrees.net.
.