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V-max Build log  This thread currently has 60,193 views. Print
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bigbrixx1
March 2, 2015, 1:34am Report to Moderator

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Quoted from texasbuzzard
Brixx it must feel good to get her on the wheels. I've got band brakes on my max and they are ok at best. They work fine with slow taxi on the tarmac but don't have much effect on higher speed runs as they get hot very fast. Keep up the great work.

Monte


Good to know. Working with Dave know on a mounting solution for drum brakes . Also considering fabricating a "ring" to weld onto brake drum to prevent distortion .


V-max. Finished. Now in phase one flight
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aeronut
March 2, 2015, 2:34am Report to Moderator

blue sky and tail winds to everyone
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Yup, but mine is in hibernation. Hopefully May will come and I well hear the sound of a 447 again.


never surrender; never give-up
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Harless Greear
March 2, 2015, 2:35am Report to Moderator

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You can buy the drums with a flange on them and have been machined on the inside... They are actually round..


HARLESS in Va.
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bigbrixx1
March 2, 2015, 2:51am Report to Moderator

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Quoted from Harless Greear
You can buy the drums with a flange on them and have been machined on the inside... They are actually round..


Nce! Where do I get them ?


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bigbrixx1
March 11, 2015, 11:03pm Report to Moderator

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Ok. I fixed the main axel. Purchased a new one and carefully drilled all holes center. On to the turtle deck. I made cardboard templates. Then stapled the  Templates onto the wood and transferred the outline onto the wood.



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V-max. Finished. Now in phase one flight
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bigbrixx1
March 11, 2015, 11:07pm Report to Moderator

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Formers now glued into place. Waiting to dry. I have removed aluminum motor mounts temporally in order to varnish the inside front of fuse. Plus I didn't want to glue them in accidentally with "squeeze out epoxy from top turtle deck. Notice the ceiling height! That is why the bench had to be broken down. I also carefully measured everything at this point to insure I can still get it out of basement!    I can



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bigbrixx1
March 12, 2015, 12:00am Report to Moderator

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Couple more. Notice quick "jig" to form turtle deck formers. I need 2 of the first because I plan on incorperating the LAA rollover protection recommendation.



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RedBird
March 12, 2015, 12:25am Report to Moderator

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Lookin' like an airplane! I hope my build looks like yours by later this spring... (just finishing the fuse sides now). Love the quick build 2X4 sawhorses. I have built many of that "model," and have a couple supporting my rowing dory project at this minute .


Why focus on proving how great you are, when you could focus on becoming better?...
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aeronut
March 12, 2015, 12:30am Report to Moderator

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Great pictures of a great build. Nice collection of clamps.


never surrender; never give-up
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bigbrixx1
March 12, 2015, 1:23am Report to Moderator

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clamps😃👍 it is true! You can never have too many! I love these sawhorses.  First time I buit them. I will be building more. Simple. Inexpensive. Strong and quick to build. Keep plugging away  ...it's great when it actually starts go look like an airplane!!!


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bigbrixx1
March 12, 2015, 10:45am Report to Moderator

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Weight loss update. Another 1.8 pounds lost. Total 69.6 since build. Here I am hiking in Hawaii. Six years age I would get out of breath walking to my car! Another 30 pounds and I can officially climb in my max and make airplane noises!



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Seaplane Pirate
March 12, 2015, 12:13pm Report to Moderator

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I am working on a V-max build, just wanted to say that your forum / log has been wonderful to read and very inspiring.  I am looking forward to seeing your progress.   What kind of engine ignition systems are you installing?  I am going with Dual ignition and trying to sort out how I will handle induction and carb placement.

- thank you.
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bigbrixx1
March 12, 2015, 6:00pm Report to Moderator

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Quoted from Seaplane Pirate
I am working on a V-max build, just wanted to say that your forum / log has been wonderful to read and very inspiring.  I am looking forward to seeing your progress.   What kind of engine ignition systems are you installing?  I am going with Dual ignition and trying to sort out how I will handle induction and carb placement.

- thank you.


Thank you for that. I  have a hummell 60 hp 4 cylinder motor. It has the carb mounted on top. The heads are off and heading back to hummell to get secondary ignition and dual plugs. It has a single slick  mag currently.  The big question right now for me is carb heat! Good luck with your build. If I can be of any help let me know

Couple pics here of LAA recommended double hoop for rollover protection. Also RS-5 sections being glued to nose in prep for sheeting with plywood



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texasbuzzard
March 12, 2015, 6:18pm Report to Moderator

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Brixx at the rate you are building your max will be flying by summer....great work, great log.

Monte
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aeronut
March 12, 2015, 10:14pm Report to Moderator

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What are you shooting for as an empty weight?


never surrender; never give-up
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BLTFreedom
March 12, 2015, 11:13pm Report to Moderator

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Ace,
     Great work on the V-max. I'm very impressed with build and personal determination! I like the hike in the woods picture! Stay healthy and fly far!

Thanks for sharing!

Bret :0)


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bigbrixx1
March 13, 2015, 4:21pm Report to Moderator

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Thanks for all the support guys! I am hoping for a 400 pound empty weight. i have cleaned up all "squeeze out epoxt and cut out all "optional" areas. I am going with Belite instruments quick saves a few pounds there. The wing tips I have are heavy. I am most likely going to fly without them at first. I may even give Bruce's wing tips a try. I guess only time will tell. Things are progressing well. As far as flying by summer....... You know what they say! 90 percent done..... 90 percent to go! plus with spring on the way I will have to venture outside and see and clean up what ever damage 111 inches of snow in 8 weeks caused


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bigbrixx1
March 13, 2015, 6:56pm Report to Moderator

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A quick note on turtle deck  stringers. While laying them out I wanted to made sure the fabric would lay properly. So I used a sheet stretched over the top before gluing the spacers in place.  It did result in me changing the  "bow" of a couple stringers for a smooth look!



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1039
March 13, 2015, 11:40pm Report to Moderator
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You have a good attention to details. Keep up the good work.
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AirCab
March 15, 2015, 3:47am Report to Moderator
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Brixx, thanks for all the great pics, and documentation that you are doing. The V-Max model would be my choice, but the Hi-Max version. Keep it up, Great !!

Steve
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bigbrixx1
March 15, 2015, 1:17pm Report to Moderator

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Thanks guys! It's been fun! Now as you all know I am building the Vmax with 1600 turtleneck. The next "dilemma" is the formers in the plans vary. The 1600 has a different shape firewall than the Vmax. I  used the firewall outline from the Vmax (that way the cowl will fit properly. ) then the next former (F1) I used the outline from the 1600. The plywood flowed smoothly. I will use 1600 formers from F1 rearward. Here you see the turtleneck complete. I have not glued in lower stringers on either side, I still want access for installation of ballistic chute (I purchased the 750 from slowmax, it is on its way to BRS for repack and new rocket) and controls! All areas under from aluminum engine mounts. Varnished. Compression fitting epoxied into holes. Bolted in place. I have left main firewall off for access to inside for now. But it is ready to glue on!



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beragoobruce
March 15, 2015, 8:22pm Report to Moderator
Built an Eros - now I'm flying it!
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Great work Brian - your plane is really coming together.

When do you sleep?  I'm retired so can work most days on my Eros. But I'm guessing you still have a job to go to, so you must be burning a lot of midnight oil.

It's clearly worth it though: with your plane on its gear it looks the business!

Bruce
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bigbrixx1
March 15, 2015, 10:46pm Report to Moderator

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[quote=243]Great work Brian - your plane is really coming together.

When do you sleep?  I'm retired so can work most days on my Eros. But I'm guessing you still have a job to go to, so you must be burning a lot of midnight oil.

It's clearly worth it though: with your plane on its gear it looks the business!

Thanks Bruce. As far a time.......I am a lucky man. My job as a paramedic consists of two 24 hours shifts a week. Since the kids have grown up. Finished collage and got married I no longer have  to do overtime shifts, yet we still have money left over at the end of the month!!!!!! That leaves 5 days a week for fun! Most of my work is done during he day while the wife slaves away in her Monday through Friday job! I try to not work on the Max while she is home! But I have been known to go downstairs for "5" minutes to glue! ( we all including my wife knows that means 60-90 minutes ) she is a trooper!


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bigbrixx1
March 18, 2015, 6:58pm Report to Moderator

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Onto the canopy. I will be building 2. One fully enclosed for the dreadful cold days here and one open cockpit for the fun summer days! Enclosed version first! Pictures tell the story. Very straight forward. Don't forget to leave 1/16 inch inset on lip of canopy top. also I will be incorporating the V notch alignment as shown in Bruce's thread! Thanks Bruce!



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bigbrixx1
March 18, 2015, 7:12pm Report to Moderator

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More on canopy. Don't forget to cut notch in canopy top before gluing! I had to cut mine after mounting. Luckily I noticed but before glue dried! I cleaned inside canopy top with acetone to remove oils and then sanded to remove rough areas and to improve adhesion. Cleaned again with acetone? Now time to line up and glue. You  don't want to sand then remove oils. The sanding process can imbed oils in the glass and make them hard to remove. I will let it dry and get ready to sheet with plywood over next couple days.



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bigbrixx1
March 18, 2015, 10:36pm Report to Moderator

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Couple more.....



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texasbuzzard
March 19, 2015, 12:37am Report to Moderator

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Brixx do you ever sleep  

Monte
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theecoop
March 19, 2015, 2:11am Report to Moderator

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Brian, I will send you a drawing for a carb heat box


Perfect Practice makes perfect!
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Seaplane Pirate
March 19, 2015, 1:56pm Report to Moderator

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Im looking at the Aeroinjector from Sonex for carb- as it has no Venturi it should not need carb heat...(in theory) but otherwise I'll be doing a under engine Zenith carb.... And I'll be needing to setup carb heat too... But we're going to try the POSA style first.
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bigbrixx1
March 20, 2015, 12:13pm Report to Moderator

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Monte... According to my wife I don't sleep enought! yes Dave please send me those drawings. I looked at the Sonex carb, but it won't work for me with my carb on top of motor and tank position. I also was intrigued by that setup! I have talked to the boys at Culver props about their automatic carb heat setup and that is simple and on the short list. I want to see what Dave has for drawings. Weather around here is going to make carb heat a necessity! I just ordered the duel Leburg ignition. A bit pricey. But very lightweight. I can now eliminate that heavy magneto that would be situated between my legs and rudder pedals. It should represent a savings of 3 pounds.

The canopy build continues. The pictures tell the story.... As you can see a man can never own too many clamps! Lots of wax paper to insure it is removable after the glue dries!



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