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Author Topic: What Did You Do Airplane Wise Today?  (Read 143847 times)
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dosco
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« Reply #2725 on: June 05, 2021, 08:18:41 PM »

Today I finished building 2 sorta-Beamsbox gliders for my nephew, who is coming to Annapolis tomorrow (along with my sister, brother-in-law, and mother).

Tomorrow AM I'll attempt to balance and trim them, hopefully that'll go smoothly.

In my haste to get them done, there is a touch of blue overspray on #2 ... mildly annoying to me, but if Hung likes it, no worries. heh.

-Dave

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stupid
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« Reply #2726 on: June 05, 2021, 10:46:50 PM »

Outstanding gliders, just the right size for kids.

I'm hoping you have great weather to enjoy your time with your nephew.

All the best,        Bob
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atesus
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« Reply #2727 on: June 06, 2021, 01:15:08 AM »

I woke up at 4:30AM, rigged up the DT, put the finishing touches on the Ailbass and drove to a local contest. Then I spent the entire day working on trimming the model. She was looking OK at the end of day and finally was getting some altitude. So I decided to wind her up one last time and watch the flight with bare eyes as I was taking a video on the prior good flight. Put in a new motor, wound her up in a blast tube, and as I was walking to the flight line, the motor exploded Angry. Surprisingly the damage seems minimal. Very minor structural damage, it looks to be mostly tissue damage.

The picture with the torque meter was taken shortly before the mishap Smiley. I'm running 8x1/8" rubber. Breaking torque should be around 16-17 in.oz. Maybe my homemade torquemeter has a big calibration error.

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OZPAF
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« Reply #2728 on: June 06, 2021, 05:01:50 AM »

Nice little CLG's Dosco. A captive junior audience - fun.

What a nice Ailbass Artesus. Why do rubber motors blow just when you think the trim is ready for a big flight? Smiley

John
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Prosper
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« Reply #2729 on: June 07, 2021, 04:03:22 AM »

Yesterday evening I had another go at getting a new camera to record models in flight. There were some spectacular clouds and I was sure the model must cross them - unfortunately after only one orbit it hit a power line and came down in a tight spiral, so no dramatic cloudscapes. The attached images are taken from the video. Pics 2 and 3 show the noseblock dislodged, which caused the spiral descent.

As for the camera. . .I have to say I'm disappointed. There are different autofocus 'modes' and settings but none of them seem fully competent. It tends to lose its focus for brief periods even if the model is kept in the centre of the frame and even if the background is blank (as in clear blue sky for example). I wonder if this is because it's being handheld, and breathing, heartbeat or other movements upset it. Against complex backgrounds like trees or buildings the autofocus is largely useless. I rather expected that would be the case. When I bought the camera, I was counting on using manual focus - as I do with my older camera - but this new job has problems with maunual focus too, in video, which I'm not sure can be overcome.

Stephen.
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DHnut
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« Reply #2730 on: June 07, 2021, 04:38:18 AM »

Hi Stephen,
                 I like your photos. There is a focus mode that tracks the object being photographed. I will look in my manual and advise. My screen shows a group of little green squares when you go to half shutter pressure. You do have to make sure it has locked on to the object being photographed, I have made that mistake a few times. Hope that is of some use.
         Ricky
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Prosper
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« Reply #2731 on: June 07, 2021, 06:24:44 AM »

Hullo Ricky - I figgered I wouldn't need to try that mode, because I fancied my ability to keep the model in the centre autofocus area. . . .but I'll try it anyway. Later today, if the breeze drops sufficiently. I could also enlarge the autofocus area but I guessed that would just encourage the camera to focus on anything but the model. Silly really: the camera's got everything. . .landscape recognition. . .face recognition (can lock onto four faces simultaneously IIRC), but no model aeroplane recognition software. How stupid is that?

Stephen.
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DHnut
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« Reply #2732 on: June 07, 2021, 05:41:55 PM »

Stephen,
            Love the comment. I had a few moments trying to understand the clever tricks built into the camera. At least you are not using up expensive film. That was another shift I had to get ove,r and learn the shoot and delete, or use burst shots and select the one I wanted. It is also good for sorting out how to launch models well. Nothing like a series of photos at launch to see what is going on.

Ricky
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OZPAF
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« Reply #2733 on: June 08, 2021, 01:57:19 AM »

That last photo is pretty good Stephen, an indication I guess of what you were trying to achieve.

Nice to the little Jungmann flying again.

John
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Pete Fardell
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« Reply #2734 on: June 08, 2021, 07:30:32 AM »

I can’t even get the hang of the camera on my iPhone. Yesterday, for instance, I seem to have accidentally triggered its ‘Picasso’ setting...
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kaintuck
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« Reply #2735 on: June 12, 2021, 01:08:46 PM »

https://ibb.co/VgGcFxZ https://ibb.co/qg7NZvz

Joining wing halves...BIG girl!
 Grin
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Tim Hooper
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« Reply #2736 on: June 12, 2021, 04:29:45 PM »

OK, so this was last weekend, so don't hate me.... Wink

A blistering sunny Sunday, and myself and clubmate Rob had the field to ourselves for a couple of hours.  We'd agreed to limit ourselves to diesel power, and so we did!

All four models flew beautifully, none were broken and we both went away very happy.

Rob flew his rudder-only Halftone (DC Merlin), and a rudder, elevator Debutante (Mills .75)

I campaigned my proven scaled-up Zoomerang (3 channel and 1947 ED MkII), and my new Answer 50" (Indian Mills 1.3)

Tim
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kaintuck
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« Reply #2737 on: June 14, 2021, 02:21:59 PM »

https://ibb.co/3RV5gkc
https://ibb.co/chwvtqZ

3lb, San battery and fake motor to balance her...I'm happy
What Did You Do Airplane Wise Today?
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Ace Dugan
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« Reply #2738 on: June 14, 2021, 04:26:42 PM »

Nice cat.  Airplane not bad either...
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OZPAF
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« Reply #2739 on: June 16, 2021, 08:57:23 PM »

The Zoomerang has a nice 1930's look Tim. Pretty models.

Nice Sniffer K - the cat is your trained helper?

John
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kaintuck
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« Reply #2740 on: June 17, 2021, 07:00:25 AM »

Them kats walk across things at night sometimes  Shocked so always put up my builds!....but they are good company, 'keep me sane' medicine Cheesy
Marc
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MKelly
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« Reply #2741 on: June 30, 2021, 08:43:42 PM »

Rigged up one of Mike Mulholland's behind-the-prop freewheelers today for my P-47.  Since it's not constrained with a spinner I added a stop wire to keep the drive arm from flipping over when the prop is freewheeling - seems to do the trick.

Another few days of details and this one will be ready to fly.

Mike
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FLYACE1946
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« Reply #2742 on: June 30, 2021, 08:55:48 PM »

Mike that looks real nice. Hope we get out soon for some flying.
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OZPAF
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« Reply #2743 on: June 30, 2021, 09:00:01 PM »

How are you holding the prop on Mike? These behind the prop FW's are just the shot for removing props.

John
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ironmike
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« Reply #2744 on: July 01, 2021, 08:56:07 AM »

Love your Jug MK.
Glad ya did the razor version.
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MKelly
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« Reply #2745 on: July 01, 2021, 03:15:57 PM »

Love your Jug MK.
Glad ya did the razor version.

Thanks Mike - we missed you at Hamilton last weekend.  Saturday was a blowout but Sunday had some great flying conditions and memorable flights.

How are you holding the prop on Mike? These behind the prop FW's are just the shot for removing props.

John

There's a tiny plastic washer CA'd to the shaft in front of the prop.  The spinner slips over it and is glued to the 3/32" prop hub tubing (see pic).

Mike
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OZPAF
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« Reply #2746 on: July 02, 2021, 02:47:44 AM »

Nifty approach and easy enough to remove if necessary. Thanks Mike - I'll swipe this combined Mulholland Kelly idea for the FW and retention.

John
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« Reply #2747 on: July 05, 2021, 06:17:31 PM »

    Re-sawing balsa wood on the bandsaw today. I needed more stabilizer & fin wood for my next project and cut up a block 3 x 2 x 12     5.2 (lb/ft³ into wedges following the Ray's. I made 2 preliminary cuts in the block and then cut wedges on each side of those cuts to get the most C- grain out of the block. I was able to get 20 sheets from this block.
  I also cut 2 sheets of 1/4 x 3 x 36  balsa diagonally to give me 8 wing blanks. I'll be adding a half inch to the leading edge to get a 3 1/2 inch cord on the next catapult launched glider. Cutting it diagonally, my High Point should end up being approximately  0.150" thick giving me a 4.3% thick airfoil.
   Cutting balsa wood sure makes a lot of dust, that's about 27 in.³ of dust in the dustpan. The rest of the dust is in my bronchial tubes. I'm not worried about it, thankfully I don't live in California were I could get cancer from it.

                            I hope you're having fun.               Bob
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Starduster
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« Reply #2748 on: July 05, 2021, 08:39:38 PM »

Started to cover my Comet 54 inch T-Cart. Modified to be electric Freeflight. Started the install of the front windshield. I stink at windshields. The last picture is of a T-Cart I'm basing my finish on. Really like the all-red with black trim.
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atesus
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« Reply #2749 on: July 10, 2021, 02:37:18 AM »

I finished building the replacement Dakota, after losing my first one OOS after a 15 min flight. It is mostly ready to maiden tomorrow - it only needs the fuel tank to be installed. I built this one from scratch, using the previous Dakota's leftover laser cut sheets as templates.

In Joe Wagner's notes on the BMJR plan, he mentions that he originally wanted to call his design "Rigid Midget" but Veco's owner had a fixation on native American names, and wanted to call it "Dakota". Well, I named my plane "Ridgid Midget" in honor of the Master. I hope this one stays with me for a while  Grin.

--Ates
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