Hi. Discovered your channel this evening. My S-21 TW kit is scheduled for June '24 delivery and of all the hundreds of build videos I've watched in prep to begin my project I dig yours the most. Clear, calm, concise and so many clever solutions. I plan to use the Rotax i916. Anyhow, thanks for sharing your build in video. I'll have it queued up as a reference out in the shop for my build for sure.
I thought about using the #40 pilot dimpler, but with countersunk rivets, the hole carries no load so being a little oversize makes no difference and there is less change of cracking the skin as you aren’t stretching the metal as much around the larger size hole. Since the key thing is the size of the hole in the spar as you mentioned, I drilled my holes to 1/8” rather than #30. I then dimpled the skins and then I reamed the holes to #30. This has the advantage of using the standard dimple dies as their pilot fits in a 1/8” hole while minimizing the oversize due to dimpling since the additional 3.5 thousandth smaller hole stretches to just slightly more than #30 after dimpling. And reaming the holes to final size makes much more accurate holes than does drilling to #30. My rivets pulled great with none of the issues that many others have had. I did use my pneumatic rivet gun throughout.
Spiderman @ 4:02! Thank you for the progress report. I will never understand the primer "war". I appreciate your wet setting of the stainless steel rivets. I did the same when faced with dissimilar metals - on my sailboat!
All caught up now, been a year or more since I last watched your build progress. I’m an aircraft mechanic and your craftsmanship is excellent. Can’t wait to watch you finish your plane and I hope to run into you at an airshow one day to talk shop and see it up close. Keep up the amazing work.
@@olut It’s been a super busy year. I got the great idea to start a business and it’s been “all consuming” if you can imagine. I have made some progress on the plane during this time and it has now been moved to the airport awaiting my final assembly and an airworthiness inspection. Hopefully this fall/winter things will slow down enough to get it done. Thank you for the support, stay tuned👍
Awesome work! Really interested in the engine setup. I originally wanted to install the sidewinder engine in my 701 but prices have skyrocketed on snowmobile engines in the past few years. Leaning towards a Viking turbo 140 now but still haven't pulled the trigger. Looking forward to seeing your bird fly. I believe you will have the most power to weight ratio s-21 on the planet! Should be amazing!
It’s killing me as well.. Life’s been very busy and while I’m still making progress, it has slowed significantly.. I do plan an update real soon. Thanks for watching 👍
The top half is held on with the 4 latches in each corner. I left a spot in the center behind the vent holes to add a 5th latch if I see the cow lifting there at all but I really don’t think that it’ll be an issue since it’s really stiff..
Not being early to the party worked out well for your tank filler idea, I like the look of your adaptation. I would still put the tank AD pieces in though, I like the idea of a solid backstop for the tank and you’ll prevent adding a horizontal load to the tank neck area. I mounted my wings alone also, with a drywall lift so I could take my sweet#@$ time. Looking good.
Unfortunately using this method means the mold is destroyed when you remove it since it’s foam around the actual engine. Happy to give you guidance or advice on lessons I learned along the way if that helps👍
I wondered if you wouldn’t mind bringing up the background music a bit on future videos. Your voice is fine but with long stints of virtual silence, it’s startling when you start talking again. Other than that, your videos are very informative and calming. Plus I get a kick out of your animated graphic you make part of the scene in most cases. Thanks. 👍🏻
Hi. Discovered your channel this evening. My S-21 TW kit is scheduled for June '24 delivery and of all the hundreds of build videos I've watched in prep to begin my project I dig yours the most. Clear, calm, concise and so many clever solutions. I plan to use the Rotax i916. Anyhow, thanks for sharing your build in video. I'll have it queued up as a reference out in the shop for my build for sure.
Thanks for the kind words! The 916 is a great choice to pair up with a great airplane. Happy building👍
You have to be close! Excited for the next videos!
I thought about using the #40 pilot dimpler, but with countersunk rivets, the hole carries no load so being a little oversize makes no difference and there is less change of cracking the skin as you aren’t stretching the metal as much around the larger size hole. Since the key thing is the size of the hole in the spar as you mentioned, I drilled my holes to 1/8” rather than #30. I then dimpled the skins and then I reamed the holes to #30. This has the advantage of using the standard dimple dies as their pilot fits in a 1/8” hole while minimizing the oversize due to dimpling since the additional 3.5 thousandth smaller hole stretches to just slightly more than #30 after dimpling. And reaming the holes to final size makes much more accurate holes than does drilling to #30. My rivets pulled great with none of the issues that many others have had. I did use my pneumatic rivet gun throughout.
Thanks for the info sir! All good points and options for folks..
Looks great. I'm in the paint booth how sanding fabric then I'll be fitting wings. 90% there 90% to go.
Sounds fun! Thanks for watching👍
Love your videos. Thank you for sharing your build.
Thanks!
Spiderman @ 4:02! Thank you for the progress report. I will never understand the primer "war". I appreciate your wet setting of the stainless steel rivets. I did the same when faced with dissimilar metals - on my sailboat!
Lol, I didn’t see that until I was editing!! Had to leave it in the video just to see if anyone caught it.. you win!
@@Project2AeroHA! I can't "see" the winning Lotto numbers, but I saw the spider. Life is so cruel! 🤪
All caught up now, been a year or more since I last watched your build progress. I’m an aircraft mechanic and your craftsmanship is excellent. Can’t wait to watch you finish your plane and I hope to run into you at an airshow one day to talk shop and see it up close. Keep up the amazing work.
Looks great!
Your build quality rivals anything I’ve seen. Again, bravo!
Thanks Mark!
It'll be soon a year since the last video, when we're seeing the next one?
Amazing build videos from you!
@@olut It’s been a super busy year. I got the great idea to start a business and it’s been “all consuming” if you can imagine. I have made some progress on the plane during this time and it has now been moved to the airport awaiting my final assembly and an airworthiness inspection. Hopefully this fall/winter things will slow down enough to get it done. Thank you for the support, stay tuned👍
Awesome work! Really interested in the engine setup. I originally wanted to install the sidewinder engine in my 701 but prices have skyrocketed on snowmobile engines in the past few years. Leaning towards a Viking turbo 140 now but still haven't pulled the trigger. Looking forward to seeing your bird fly. I believe you will have the most power to weight ratio s-21 on the planet! Should be amazing!
Great attention to detail and commitment to doing things right!
Thanks man!
Awesome! You make it look so easy! And the spider seems to feel right at home - until you go flying of course!! :)
Another Fantastic display of craftmanship Josh! You display your drive, ingenuity and research into an admirable product. Well done.
Need videos!
It’s killing me as well.. Life’s been very busy and while I’m still making progress, it has slowed significantly.. I do plan an update real soon. Thanks for watching 👍
after finishing the cowl overlay did you install nut plates to hold the top half in place?
The top half is held on with the 4 latches in each corner. I left a spot in the center behind the vent holes to add a 5th latch if I see the cow lifting there at all but I really don’t think that it’ll be an issue since it’s really stiff..
Are these "WET" wings or do they get a fuel tank install just before closing them up?
It does have a fuel tank that fits in the inboard most bay. I just don’t have it in there yet.
Fascinating!
Not being early to the party worked out well for your tank filler idea, I like the look of your adaptation. I would still put the tank AD pieces in though, I like the idea of a solid backstop for the tank and you’ll prevent adding a horizontal load to the tank neck area. I mounted my wings alone also, with a drywall lift so I could take my sweet#@$ time. Looking good.
I am Vietnamese, experimenting with building an airplane with a BMW s1000r engine, reinstalling a transmission. Can you see it?
Looking good Sr. would you be interested in helping me with a cowl for mine using your mold? for $$?
Unfortunately using this method means the mold is destroyed when you remove it since it’s foam around the actual engine. Happy to give you guidance or advice on lessons I learned along the way if that helps👍
@@Project2Aero Thank you! when ya going to make videos again! your missed!
I wondered if you wouldn’t mind bringing up the background music a bit on future videos. Your voice is fine but with long stints of virtual silence, it’s startling when you start talking again. Other than that, your videos are very informative and calming. Plus I get a kick out of your animated graphic you make part of the scene in most cases. Thanks. 👍🏻
I’ll sure keep that in mind moving forward, thanks for the input! Glad you find the little graphics entertaining!