airscale Posted July 18, 2021 Share Posted July 18, 2021 On 7/17/2021 at 6:09 PM, Ironwing said: ..I just had to see how much it looked like an ST-A Umm - it looks like a perfect facsimile of the real one down to about six decimal places Geoff wonderful to see not only how you are going about it, but the pace with which you are moving - really impressive It is also clear you are having a ball & with results like that, I am not surprised Bravo Peter Derek B 1 Link to comment Share on other sites More sharing options...
Ironwing Posted July 24, 2021 Author Share Posted July 24, 2021 Happy Summer All Many thanks for all the kind and thoughtful comments. Things here are progressing. It was decided to go back to the cowling assembly which, turned out to be more challenging than I thought it would be, especially the nose piece that closes the front of the cowling. It took a couple of days of sanding (very carefully) filling, and test shooting. The curves on the nose frontus closure is very subtly curved in several directions with the area directly behind the spinner sitting forward (raised) in front of the rest of the nose. You can see what I mean in the photos. It took five iterations with very small adjustments in between(one missing in photo). The last (far right)to get to the last one. Three were made from .020 card. One made from .030 card.. and the last from .040 card. Getting the curve under the spinner seat and the smale radius on the chin where it meets the cowling were the biggest challenges. From there, it went to the fairing that sits between the fuselage and the rear of the cowling. I might reshoot this part. In hind sight, it might have been better to just leave the fuselage a little long and try to sand the needed radius into it rather than making a separate piece. The end result... So is the state of the ST-A. Maybe a spinner next and revac that fairing. I hope everyone is enjoying their summer and enjoying good health...Be safe. Best Geoff MikeMaben, easixpedro, D.B. Andrus and 13 others 16 Link to comment Share on other sites More sharing options...
RLWP Posted July 24, 2021 Share Posted July 24, 2021 I wonder if you know just how much your thread makes me smile. I have just been playing a similar game with my DFW, although I'm much more likely to accept a 'not-quite-accurate' result Beautiful work, puts me to shame Richard JayW 1 Link to comment Share on other sites More sharing options...
LSP_Kevin Posted July 24, 2021 Share Posted July 24, 2021 Brilliant work, Geoff! So much inspiration happening in the WiP forum these days. Thanks for providing a good chunk of it! Kev Link to comment Share on other sites More sharing options...
JayW Posted July 28, 2021 Share Posted July 28, 2021 Geoff - that is just magical!! Cannot believe you scratched out that beautiful nose piece. Link to comment Share on other sites More sharing options...
Ironwing Posted July 29, 2021 Author Share Posted July 29, 2021 On 7/24/2021 at 6:31 PM, RLWP said: I wonder if you know just how much your thread makes me smile. I have just been playing a similar game with my DFW, although I'm much more likely to accept a 'not-quite-accurate' result Beautiful work, puts me to shame Richard Richard, Your comment makes me smile..overly kind of you..thank you. Youve nothing to be ashamed of for sure. When will we see more of your build? Best Geoff Link to comment Share on other sites More sharing options...
Ironwing Posted July 29, 2021 Author Share Posted July 29, 2021 On 7/24/2021 at 6:34 PM, LSP_Kevin said: Brilliant work, Geoff! So much inspiration happening in the WiP forum these days. Thanks for providing a good chunk of it! Kev Kev Thank you. You always say such nice things. I always hope I can contribute in some way. Many thanks... Geoff LSP_Kevin 1 Link to comment Share on other sites More sharing options...
Ironwing Posted July 29, 2021 Author Share Posted July 29, 2021 On 7/27/2021 at 10:04 PM, JayW said: Geoff - that is just magical!! Cannot believe you scratched out that beautiful nose piece. Jay I cant believe it either! The little witch turned out to be a sneaky little time bomb. If you look at the front major diameter, the OD isnt a sharp edge. The little radius caused a step in the profile. Fortunately I was able to sharpen it so it fit the back side of the spinner. The two fit together not unlike the Mustangs nose whereby the line of the spinner is continuous with the top of the cowling. That said, Im glad you looked in..thanks much Bud. Geoff Link to comment Share on other sites More sharing options...
Ironwing Posted July 29, 2021 Author Share Posted July 29, 2021 Hello All Everyone is well and in good spirits I hope. I promised myself I wouldnt post anything about what I was working on until this subassembly was finished..OK, I lied. I didnt plan on this bcoming a major effort. Bad plan. All I wanted to do was make a spinner. I did that but it grew from there... A while back I was just kind of playing with making a prop. I had never made one before. I didnt really know if I would use it or make another one. So now, after making the spinner, there was a spinner, a prop, and a nose fairing. Its still pretty ratty looking and still incomplete but I just had to show you whats been done... The spinner is a bit out of position. It steadfastly refused to stay put..but... I used some lacquer primer out of a can, Something I wont do again but you get the idea. Landrotten Highlander, patricksparks, Derek B and 5 others 8 Link to comment Share on other sites More sharing options...
Ironwing Posted July 29, 2021 Author Share Posted July 29, 2021 I wish I could finish this off but there is more work to do. The prop especially will have to be finished..varnished,painted, and brass leading edge. LSP_Kevin, D.B. Andrus, scvrobeson and 4 others 7 Link to comment Share on other sites More sharing options...
Ironwing Posted July 29, 2021 Author Share Posted July 29, 2021 Sorry, didnt mean to do that twice. I meant to put this one Originally, the spinner was vacformed using .030" sheet. One was also done using .040". The >040 spinner gave me more room (thickness) for fitting it to the cowling. The line of the spinner is continuous with the top of the cowling, much in the same way the cowling and spinner match on the Mustang. MDuv, MikeMaben, Derek B and 8 others 11 Link to comment Share on other sites More sharing options...
Ironwing Posted July 29, 2021 Author Share Posted July 29, 2021 After a good cleanup and with the appropriate support structures installed, it should be acceptable. I hope everyone is doing well..be safe safe Regards Geoff Troy Molitor 1 Link to comment Share on other sites More sharing options...
Anthony in NZ Posted July 29, 2021 Share Posted July 29, 2021 So beautifully precise and clean Geoff, just what we expect from you buddy! Absolutely love this, keep up the great work. This sure is next level stuff! Cheers Anthony Link to comment Share on other sites More sharing options...
Ironwing Posted August 5, 2021 Author Share Posted August 5, 2021 (edited) Greetings All, After taking a good long hard look at the spinner and prop, I decided to do it again..what a surprise There were a couple of things that didnt seem quite right. 1) The overall shape of the cowl and nose. 2) Size and shape of the prop.I thought I could make them better... Starting with the prop. Asnoted, when I made the prop, it was more of an experiment but it didnt come out too shabby. Just the same, a replacement was done up which, more accurately replects the prototype. The original prop is on the left. Im sure you can see the difference. This is the replacement This one more accurately represents the bulk of the Sensenich. The intake apertures were opened. Looks more like an ST-A nose now. New prop and spinner... Edited August 5, 2021 by Ironwing add photo MDuv, LSP_Kevin, Anthony in NZ and 2 others 5 Link to comment Share on other sites More sharing options...
Ironwing Posted August 5, 2021 Author Share Posted August 5, 2021 Looks more like an ST_A... Small steps on the road to Ryanville. Hope evereryone is well..be safe easixpedro, Anthony in NZ, jumpjack and 8 others 11 Link to comment Share on other sites More sharing options...
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