thunker54
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3:31 PM - Dec 20, 2017 #431

I threw a couple of cameras on the P-47 - and decided to salvage some of the video for some on-board views....

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thunker54
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Joined: 4:39 AM - Feb 17, 2009

6:50 PM - Dec 20, 2017 #432

I took the Pitts out yesterday to try again.  This is a little $100 plane from China that was mostly crap.  It came with ZERO instructions and a lot of the parts to put it together were missing - so I had to make some parts.  The first couple of times I flew it it would barely get off the ground - it was so under-powered.  So I pulled the tiny little factory  motor out of it and put in a Cobra motor I had in stock.  I'd bought this little motor years ago just have in inventory.  I really like Scorpion motors - but they are the Cadillac of motors and are very expensive.  The Cobra is more of an economy motor - and I'd never tried one. 
Boy - it has LOTS of power now!  Just hops off the ground.

Anyway - now that it has power enough to actually fly, I flew it about 20 minutes - doing about 6 or 7 flights - trying to get the control throws and exponential rates adjusted.  I think I finally got it tuned in pretty well at the end.  Since it had not instructions I had to guess with the center of gravity should be - and I think it is still just a bit tail heavy.  It was really wanting to "porpoise" on me at first.  I'll put in a slight larger/heavier battery next time and see how it does.  But, even though the kit had cheap parts, the airframe seems to fly quite nicely....

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thunker54
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6:22 PM - Dec 29, 2017 #433

I scrounged around in my stash 'o parts and cobbled together this little panning camera mount to put on my FMS PT-17 Stearman biplane. 
If the weather ever warms up a little I'll give it a try in the air.   Might be interesting mounting the camera shooting rearwards on it, too.

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thunker54
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10:18 PM - Jan 09, 2018 #434

I took my PT-17 Stearman out with my new home-hacked panning camera mount out to give it a try today.  It seemed to work OK.  My health hasn't been the best the past 9 months so I'm not quite up to par on my flying skills - but I gave it my best shot.
I designed this little "panning/sweeping" camera mount so I could "look around" during flight.  A little metal gear servo with a "slow-down-the-slew-rate" gizmo and a "increase the sweep range to 180 degrees" gizmo hooked up in series.  Seemed to work fine.  I accidentally dropped my head camera the other evening and broke my little home-hacked head-mount for my Canon S120 - so had to make a new one.  And, in the past, it's taken me a few flights to get the angle of the mount adjusted right to keep the plane in the view.  I thought I got pretty close this time on my first try for a whole new basswood cut-out and glued together mount.  It was just angled a tad bit low and left.  I'll tweak that next time and bet I get it pretty close.  Then I'll use a little marker to mark the correct position so I can adjust it there again.

With the battery, cameras, panning mount, etc - the all up weight is a bit over 3 pounds.

Anyway - here's the flight today.  Short & sweet.  Nothing fancy.  Did a hard full-power loop and it got exciting for a bit - but I recovered.  ;-)  Don't go full throttle when you get to the top of the loop!  ha ha....

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thunker54
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5:34 AM - Jan 25, 2018 #435

Finally got a chance to get out and try a new scale 4-blade prop on my ParkZone P-47 Thunderbolt.  It flew fine and didn't overstrain any of the power components - so that confirms my bench tests.  But it was noticeably slower than the 2-blade prop.  The 4-blade produces a lot more thrust, but less speed.  And that thrust worked against me when it came to taxiing, taking off and landing.  Looks nice and scale, and it works - but not the best choice for this motor setup I think.
I also installed a Dionysus 4-second rate reducer to slow down the flaps - and make them look more scale operating.  That worked great I thought.  I used 1/2 flaps for takeoff and only 1/2 flaps for landing - as I'm not real used to landing warbirds with full flaps yet.  I've learned enough to know it can stall real easily!  ;-)

 
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thunker54
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5:51 AM - Jan 25, 2018 #436

P-47 from a couple of Mobius mini on-board cameras.....

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thunker54
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6:59 AM - Jan 27, 2018 #437

OK - it's been a while since I've added another airplane to my "hangar."  I've put a few in storage, and "retired" (i.e. salvaged) one or two - but most of this past year I was grounded due to health issues.
But - all is hopefully on the mend now and I splurged and bought this plane the other day.  In the past, I've mostly bought only Allied models when it comes to WWII aircraft, but this time I bought an Axis one - a German Focke-Wulf 190.  I know my dad saw these in combat more than once.  He never talked much about the details of his combat missions, but he did tell me about encountering both the FW-190 and the ME-109.

Anyway, here's a FW-190 airplane, 44" wingspan.  A full 6-channel airplane.  I added a 4-second rate reducer to the flaps - to slow them down to be more realistic looking.  And the landing gear has metal "trunnions" (working, stress bearing parts) as well as a metal mounting plate.  Hopefully it'll be stout enough for my rough landings... hee hee.  It's another "step up" in power level than I've flown before.  This one is a 4-cell power system - or 14.8 volts.  I've always flown 3-cell mostly, 11.1 volts.   So I had to buy a 4-cell battery, and it's bigger and heavier. 

OK, OK - for the true scale "Nazis" out there - the real FW-190 had split flaps - where only the bottom portion of the wing would extend down for flaps.  This model has flaps like a P-51, cut all the way through the wing - ease and cost of modeling, I'm sure.  Also the real FW-190 had slightly longer landing gear.  This model is a bit "stubbier" - probably for us amateur RC guys trying to fly it off of grass.  ;-)

The bottom line is it's just a stouter, heavier, and more powerful model airplane than I'm used to.  It comes in at about 55 ounces all-up flight ready.  Or approaching 3.5 pounds.  And I know I'll have to stick a camera or two on it later - so there's another few ounces.  ha ha....

Anyway, even if it was an "enemy" plane, I think it's a beautiful design.   Those Germans always knew (and know) how to build quality stuff.

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thunker54
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7:49 PM - Jan 30, 2018 #438

I added a faux antenna wire to my FW-190.  And I customized the landing gear!  ;-)

Also - the kit didn't come with any Swatikas for the tail - only a lame dashed triangle to put where the Swastika went.  I refused to do that so I DL'ed a Swastika from the web, tweaked it in CorelDraw and printed it off on clear transfer paper so I could put it on the tail. 
Sorry PC folks - this was the way these planes looked during the war.

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thunker54
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9:40 PM - Feb 07, 2018 #439

I got a landing gear sequencer to make the landing gear extend/retract one at a time.  Unfortunately the pause between the two is fixed at 6 seconds.  I'd like to speed that up a bit, but it's not adjustable.
Still though - it works great.
It'll even handle gear doors if you have gear doors that open/shut.  I don't have any planes with powered gear doors, though.

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thunker54
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6:59 PM - Feb 24, 2018 #440

I didn't like that long, fixed 6-second delay on the gear door sequencer, so I got a nifty little gizmo in yesterday that I ordered from Korea.  A programmable landing gear sequencer - to make the landing gear go down one at a time.  With one channel from your receiver (one switch on the radio) you can control up to seven different servos to operate in any sequence you want.  It'll handle landing gear doors as well.  For example the main landing gear doors (I don't have any planes with gear doors) can open at once if you wish and the landing gear extend some time later one at a time.  You can also define the periods of delay time.  Also, you can even control the speed that the servos operate - to slow them down if you wish.

It just plugs in to a USB port and you can program it from a computer.  When you have it like you wish, you can flash the program to the module in the airplane and unplug the computer.  I messed with it some last night and it's really a great design/idea.  It was only $20 shipped to my door.  Works slick.

I put one in my P-47 Thunderbolt.  Here's how I set it up....

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