October 4 and 6, 2017
Rymes and reasons...
or lack thereof.
Working through the port side-rails; trimming them down and welding them on.
Work on the second one... after measuring, fitting and trimming to size... I lined it up with the laser line using the sheet of aluminum (the pseudo skin). Looks good. Tacked both ends. Looks good. Clamped on the ol' straight piece of tubing. Looks good. Tacked it every 2inches and un-clamp the tube. Not so good.
DAMN ! What the... ???
There is no ryme or reason with this... I'm going to need to cut the tacks and do something to push the side-rail out straight.
The project progresses as usual... (as of late)
Before tacking in place.
October 8, 2017
The second third times...
Working on the port side still...
Needed to un-tack, re-align, check... un-tack the re-align again before getting out most of the bow in it. It being... the second port side-rail.
Started aligning and notching the third port side-rail. Looking good... it's up on the fuselage, locked in position and marked... ready for trimming down.
October 14, 2017
to work on something new.
Started working on the sheet metal skin.
All four forward pieces have been roughly fitted up. I tried making the rear pit skin fit up over the shell over the instrument panel but didn't really work? Cut it down and did in two pieces. Maybe if I lay the actual aluminum over in that place and cut it based on that instead of a display board (thicker paper) pattern it may work ? I'll try on my next go-round.
Basically wanted to fit the pieces to get a see how the upper section looked and to start figuring out the rear windshield.
The windshield I had created isn't working as well as it originally did when I did the mock-up in paper. Starting to refine it now...
The nose on this thing is loooooong. You need to add an additional 44inches to what you see. I'm only covering up to the firewall right now.
October 16 - 20, 2017
Designing the windshield...
a milestone for me.
WOW ! Wow...
I've actually started making the windshield for the biplane. Wow... For some reason this was a milestone project.
With the sheet metal skin roughly in place I have started fitting up the pattern for the back windshield. The inital pattern I had didn't quite work for me. Made a modification to that and it looked pretty good until I compared it to a few others out there. It looked a little too short and too stubby.
Modified the pattern and made it two inches longer and the side panels a bit wider. Also made the front top more narrow than the bottom. The pattern is ready to be transferred to a piece of the sheet metal I have for a real test... also will allow me to figure out how I want to attach the plexi to the piece and how I'll be attaching the windshield to the sheet metal skin.
New pattern... final look.
October 27, 2017
WOW ! Wow...
The amount of time I'm spending crawling along with the windshield. DAMN ! (just get on with it...)
I'm not sure if I'm making it hard on myself; the front panel of the windshield is 7inches and the bottom is 11inches. Right? Wrong? Not sure how it can be wrong... maybe more difficult to work with. Anyways... Paper pattern looked good. Transfered to aluminum sheet metal pattern... looks good but needs adjusting. But what type of adjusting?
Looked at a few of the pieces that some of the guys on the biplane form did and kind of got an idea. But... I'll modify them slightly.
It looks like I need to cut some curves in the design to match the curves of the fuselage; both the front and the sides. Also need to make the bottom edge of all three sides more meaty (I'll keep the same size and just make the frame on the bottom 1inch instead of 1/2inch). The design I came up with, still to be tested, has the curve on the front, partial curve starting half-way back and moving forward (with the back part remaining straight).
In theory, this design will still force me to put a bend in the sides to make a better fit, but giving me the "look" that I'd like to have?
October 30 - November 3, 2017
just trying to make it...
WOW ! Wow...
Repeart...The amount of time I'm spending crawling along with the windshield. DAMN ! (just get on with it...)
Actually, I'm not sure why I'm even writing the above. It's been the same throughout the entire process. Make a test pattern... maybe another... heck, maybe one more, or a few more. I'm just trying to make my vision. And if my vision takes a few iterations before I'm happy with it... I'm fine with that.
And so it is with the rear windshield. I've like the shape of it for the past few iterations but not happy with the fit. Even though I'm thinking I will need to put a curve to the front and ths sides of it to get a real close fit... there still wasn't enough metal to get a close fit without forcing it to be close (understandie?)
More playing with the last iteration to see how the next iteration would need to be modified for a better fit.
I think that this one is it.
After writing this I thought about my reference... "just trying to make my vision". Vision/windshield... get it?
November 6 - 10, 2017
again and again.
Slow progress on the back windshield.
I'd like to CAD this all out so that everything would be perfect... but there isn't a place around here that prints out DWG's or any other CAD related files. And... my printer only prints on standard paper. It's great for the little parts but not something that is 33inches wide x 19inches high.
Okay... I thought. I'll work out the curves and print them out in pieces and glue them in place for "perfect", identical curves. That wasn't working either.
Anyways... this was all after finding the piece of .040 3003-14H. From one of the members on the biplane forum, I found out that that is the material (although they use .050 material) for the windshield on a few Stearmans they've restored. If I had to buy a piece I'd buy the .050. But I didn't, so I used the .040. It's stout enough for my instrument panels... and it looks like it'll be stout enough for the windshield.
Transferred what I had from my last sheet metal windshield iteration... took about 1 and 1/2hours to draw it up on the .040 aluminum blank I had. Looked at it the next day and realized what they were saying about the "90degree folds on the back of the pattern for the rear capture of glass". It wasn't to hold it in position... it was to finish off the back.
With this epiphany... I drew it all over again. Kept the one on the one side to take measurements from...added the additional 1 1/4inches to the back edge... and NOW I think I'm ready for cutting it out.