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  • #76
    Happy new year Bearhawkers. Been rounding up all different firewall forward parts. For simplicity I ordered a 84" 4 blade electric inflight magnum IVO propeller. Control surfaces are well underway. Enjoying every minute of this project. I included a picture of the starter being weighed. It's lighter than a skyteck starter.
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    • #77
      Happy New Year to everyone!

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      • #78
        Greetings, Sharing is caring. With everything we are all experiencing because of things going on in our communities. Our projects are a healthy distraction from it all! :-) There was talk about adding skin stiffeners to the B wing in response to the EAA photo of oil canning. This is how I applied the various solutions to my wings. Attached are photos of my stiffeners before skinning. 0.025 x 1.75 double staggered rows of 426AD3 rivets.
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        • #79
          Greetings fellow aviators, I'm enjoying everyone's post on the various threads in our community. Thank you for taking the time. So today is my day to post. The engineering on the firewall forward is basically complete to the point it can be completed to in the concept of pen to paper. I have been satisfying my busy hands with assembly of the flaps. Today I'm fitting and drilling gussets to the 0.032 spar. Flaps lol more work then you would think, imho I took some pictures for anyone who could use the visual version of the story. Cheers
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          • #80
            These flaps are huge! There are very close to 400 rivets to squeeze & pull per flap. :( work work!
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            • triumphantduke
              triumphantduke commented
              Editing a comment
              looks awesome! thank you for the steady posts, assisting others in getting their bearhawk "fix" :D

            • Sir Newton
              Sir Newton commented
              Editing a comment
              100% fyi, I'm at 104 hrs on the flaps to date.

          • #81
            Lookie what showed up on UPS today. IVO Magnum 3 blade inflight electric adjustable propeller! 350hp to turn this monster.
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            • triumphantduke
              triumphantduke commented
              Editing a comment
              I'm not "learned" enough to comment, but looks cool! I'm curious to learn from others what the pro cons are for electric adjustable vs regular oil pressure driven governor, although that might just open a can of worms haha

            • jaredyates
              jaredyates commented
              Editing a comment
              I'm just munching on my popcorn looking forward to how it turns out!

            • Sir Newton
              Sir Newton commented
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              You guys are awesome, electric vs hydraulic Cost, electric are more expensive. I really like buttery popcorn.

          • #82
            Greetings Bearhawkers
            It is just a great day today! It is my pleasure to report that LG/RH flaps have been completed. Pictures attached, they need a complete primer application still. However they are complete and straight, that is all that matters today. I set a flap on the wing of my PA-28-140 for an interesting comparison.
            Best Regards
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            • #83
              Greetings, attached some pictures of the RH aileron in colecos. Needs to be deburred & dimpled yet. LH is basically at the same stage of construction. Nothing but fun here in the Communist Republic of Canada.
              Attached Files

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              • #84
                Greetings great warriors of the Bearhawk Nation :-) lol, just a chipper update from a fellow builder. I am finally starting the riveting on Ailerons. There is some man hours in the fabrication of parts, fitting, deburring, dimpling, alodine, final assembly of these control surfaces. Anyways it Friday have a great weekend!
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                • #85
                  Does anyone want to surrender the part number for the Model 5 Windshield from LP Plastics?
                  As far as I can tell the windshield is for a Cessna C-182 thickness of 3/16 A part# would make life easier for the scratch builders.

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                  • Mark Goldberg
                    Mark Goldberg commented
                    Editing a comment
                    I am going by memory now so this # is not to be trusted. But I think the part # is 338. Actually - if you look at the C182 windshields at LP AeroPlastics - there is only ONE C182 windshield that is 3/16". All the rest are 1/4". Mark

                  • Sir Newton
                    Sir Newton commented
                    Editing a comment
                    Awesome ! Thank-you Mark
                    PT#338 CL

                • #86
                  Hey Sir Newton, we have massive Canada goose formations flying around here in Seattle at pattern altitude. Plus we have hawks, ducks, crows and other flying critters. Bet you have them too. That thicker windshield could be a big plus.
                  Gerry
                  Patrol #30

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                  • Sir Newton
                    Sir Newton commented
                    Editing a comment
                    Gerald You have great what if points. As you get to know me you will find that I do not always default to the safest option.
                    Helps understand the LS3 install :-)

                • #87
                  Greetings fellow Bearhawkers
                  This is an important endorsement of Bob & R&B Aircraft from a very satisfied builder. (me)
                  Today I received lift struts & flap springs. Along with some very important ID tags! Simply very pleased & I felt like telling someone. The shipment was professionally packed up like a professional design the packaging.
                  Cheerios to all
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                  • #88
                    Greetings, I am overwhelmly happy to announce! Ailerons complete! Trophies for the Parts wall! Whorah!
                    Attached Files
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                    Last edited by Sir Newton; 05-03-2022, 09:16 AM.

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                    • Frank
                      Frank commented
                      Editing a comment
                      As an LSA builder we nevertheless inhabit the same gene pool. So I have to ask about gusset and trailing edge flanges. One reason would be to disguise gusset edges. But maybe it's more esthetic to feature the edges? Though now I zoom in it looks like the edges are somewhat rolled? Cleveland edge forming tool? Sorry to be a pain but I am just approaching that step now!
                      Last edited by Frank; 05-02-2022, 06:31 PM.

                    • Sir Newton
                      Sir Newton commented
                      Editing a comment
                      100% we are of the same tribe. I added pictures of the tooling used. It is a bead roller with a 5/16 radius die set. I tipped every edge so the fabric wouldn't have an edge to rub against. The edges have a more finished look. I did the same on all the exposed edges on my wing skins as well :-)

                  • #89
                    Good Day follow BH builders, I read everything I could find on internal corrosion protection of 4030 tubing. It is encouraged in AC43 to use boiled Linseed Oil. After a review of the ALL the products I could find including long term engine preservation oils. IMHO, In the case of 4130 tubing. Linseed is still the best choice at $10 a liter. I plan to inject any part that I can with it. Bell cranks got a few drops & then I sealed the hole with weld. It does not take much oil. The oil naturally spreads and crawls its way around everything. I simply tested it by dipping some linseed oil on the fab table. Within a day it spread like a fugus over the table. I see why the old generation chose to use it. Anyways.. I can ramble on about details. After fabricating these tiny little bell cranks, I realized that these little parts are fairly challenging to fab & weld. Needing something to take pictures of & post, I included pictures of a simple jig I designed to get the job done quickly & accurately. Be sure to use backers in all the bushings during welding. The backers are not just heat sinks! There purpose is to simply take up the space so air has a more difficult time getting into contact with the interior surface of the bushings during welding. Alrighty time to get back to work. PM's are open for anyone who requires a more detailed explanation of my ramblings. Cheers ta all
                    Attached Files

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                    • Sir Newton
                      Sir Newton commented
                      Editing a comment
                      The odd picture out is the weight of my completed Aileron on the scale 11 lbs 4.3 Oz No fabric.
                      Last edited by Sir Newton; 04-10-2022, 06:01 PM.

                  • #90
                    Oh almost forgot, this is actually beneficial information if you read my ramblings about BH. In the attached photo DWG 11B. There is a measurement circled in RED! At 1st glance a fabulous BH fabricating warrior may see 3"7/16 When in the real BH fabricating world this measurement is 3"1/16. Pay Attention! It freaking matters! Thank me later :-)
                    Attached Files
                    Last edited by Sir Newton; 04-11-2022, 06:48 AM.

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                    • way_up_north
                      way_up_north commented
                      Editing a comment
                      I was taking a close look at this spot on my plans… on mine there is spot at the top of the one.. but much lighter… on my plans it looks like a “1” and not a “7”

                      If my plans looked like yours I would have seen a “7”…. Thank you for bringing to our attention
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