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Author Topic: Show Your Newest Creation  (Read 94342 times)
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Starduster
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« Reply #525 on: January 07, 2014, 09:39:27 AM »

Very nice John, handsome model!

Did the open cockpit airplanes have any provision for when it was rainy? On this one the cockpit is somewhat sheltered by the upper wing but many other passenger planes from that era have cockpits fully exposed to the elements. Just wondering  Huh...

The airflow over the windscreen deflects most of the rain over the open cockpit. You can actually stay pretty dry even in heavy rain. Same thing in a car with the top down. You don't get wet until you have to stop at a red light!

There are several examples of airplanes that had an enclosed cabin for the passengers and an open cockpit for the crew. Back then, a lot of pilots didn't think that they could fly the airplane very well unless they could "feel the wind in their faces"

1) The Boeing Model 40 "Mail"

2) The de Havilland Fox Moth

3) The Lockheed Orion (Though with this one, the pilot could close the cockpit)

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climber
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« Reply #526 on: February 14, 2014, 11:35:15 AM »

Hey;

Here I am with (yet) another electronic dethermalizer.  This time it's my most compex yet, an F1B timer I made for Bernard.  He's competing in California today and I hope they are doing the job.  It follows the Vivchar style mechanical timer mounting layout so it can act as a drop-in replacement.  With a 160 mAh battery and all levers, servo, cables and strobes the whole thing weighs a little over 21 grams. 

The big black thing on the left side is a 92 dB buzzer used to signal the battery status and for the launch.  You press and hold the start switch and it starts sounding to let you you it's ready to launch.  When the switch is released when the model is launched the timing starts.  The switch on the timer is actually for basic configuration.  There's another switch on a cable for the start function.  The config switch is used to make quick adjustments to the D/T time, to test the servo and test the battery.  When testing the battery it beeps.  One beep is 3.7 volts, two beeps is 3.8 volts, etc.

The slot on the bottom is for a special servo wheel.  The release levers (not shown) are mounted on top.  As the wheel turns it releases levers for each of the functions.  This unit can control two servos.  Bernard is planning to move to a new two-servo pylon to control wing incidence as well as the release levers.   

On the other side are all of the electronics and connectors.  It can drive two 1000 lumen strobes to help keep the model in sight plus help locating the model.  When the RDT is activated each strobe will flash once and the buzzer will beep twice.  Oh, and it works with the Ken Bauer RDT.

I've moved all of the configuration management to the computer.  I wrote a little GUI (the second picture) that controls the time and functions.  This version is for driving a single servo.  I'm working on an interface that will manage two.   It's written in Perl/Tk and will work on Macs, Windows and Linux.  Bernard and I bought cheap little notebook computers to take to the field. 

The design includes an altimeter that automatically records the altitude from launch in meters every two seconds.  The graph on the bottom is the altimetry data.  When you return from a test flight you connect the timer to a dongle and hit the "read config from timer" button to retrieve the data.  Height is in meters.   

As I was typing this Bernard emailed me to tell me the timers are working perfectly.  :-)
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DerekMc
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« Reply #527 on: February 14, 2014, 03:29:58 PM »

My restricted tech wakefield before the IKE. I broke the autorudder horn while trimming before the contest. Fixe it but wasn't able to finish trimming due to wind. Initial flights are promising. I'm wearing my 3.5x reading glasses that I use for close up work. My daughter calles them my Nerd glasses!

http://i1139.photobucket.com/albums/n542/derekmc777/airplane%20builds/fd88ac126825aa0a30cb5a5464eb18db_zps37a5d3a9.jpg
Show Your Newest Creation
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Derek
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« Reply #528 on: February 15, 2014, 12:14:49 AM »

Looks very neat Derek. Did your daughter mean you can only see nerds with those glasses Cheesy
Climber impressive timer - must really add to the reliability and accuracy when trimming. A built in feedback to performance as well.
John
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tross
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« Reply #529 on: February 24, 2014, 11:53:44 AM »

Here is the pilot for the upcoming Pnut build. Total weight .1 gram.
I carved a tiny mold front and back and vac formed him using a very thin film.
Looks like he could use a little less neck tho. Grin Cheesy Smiley Grin

Tony.

PS. The guns won't have any action....just like the pilot is missing a brain! Roll Eyes Cool Grin Cheesy Smiley
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Instructions: Step One...Assemble the pile of sticks shown in pic "A" to look like the model airplane shown in pic "B"........
rgroener
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« Reply #530 on: February 25, 2014, 01:51:22 AM »

The brain is there, the eyes are missing Wink
Looks good so far. Will fit nicely into a peanut.

Roman
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dosco
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« Reply #531 on: February 25, 2014, 01:10:53 PM »

It's finished!  Finally !!!    It's very rare that I've felt I've been happy to be finished with a build but this one has been a long-prolonged chore, probably because I started it out of curiosity rather than interest and enthusiasm.  It would have been easy to abandon it but that's not my custom.

A portly 77 grams, less tracker, it's already tail heavy and things will be worse when a motor goes into it - so eventual weight with a chunk of lead in the nose is problematical at this time.  I really don't think it will warrant the tracker when it comes to flying - whenever that may be.  Whenever .....



Jim:
Did you ever fly this beast?

I was eyeballing the plan on Outerzone and the comment there was "suggest you checkout applehoney's thread."

Did you post a build thread somewhere?

Regards-
Dave

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mike j
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« Reply #532 on: February 26, 2014, 11:16:38 AM »

Hello all, Here is an idea that had been cooking in my head. The Mig 27.
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OZPAF
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« Reply #533 on: February 28, 2014, 12:37:02 AM »

Shades of Monique Grin It looks great - rubber pusher Mike?
John
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applehoney
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« Reply #534 on: February 28, 2014, 01:33:40 AM »

>Did you ever fly this beast?

Sort of.   I tried to trim it and it was an utter dog despite the designer's claims for it.  A heavy landing caused substantial damage to the fuselage and I then scrapped the thing without a moment of remorse.

Not the first time I've resurrected something obscure and regretted it
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tross
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« Reply #535 on: March 02, 2014, 09:13:39 AM »

 Grin Smiley Cheesy Grin

7.45 grams without rubber.
Takes longer to do the graphic art than it does to build! LOL
Now back to the WW1 stuff..... Cheesy Smiley Grin Smiley


Tony
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Instructions: Step One...Assemble the pile of sticks shown in pic "A" to look like the model airplane shown in pic "B"........
Dave Andreski
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« Reply #536 on: March 02, 2014, 10:35:09 AM »

Very sharp Tony!
Your efforts to keep weights low have really paid off.
Dave
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Pete Fardell
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« Reply #537 on: March 02, 2014, 11:13:27 AM »

Really nice neat job! I do like to see a pilot sometimes, even in a closed cockpit peanut! Instrument panel looks great too.
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tross
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« Reply #538 on: March 02, 2014, 05:29:49 PM »

Thanks Pete.
That's the graphic from the CAD underlay in your thread.
I hope your CAD is coming along okay. Smiley

You're missing a winter for the ages Davey.
Counting down the days until the backyard barbecues begin. Grin

Tony
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Instructions: Step One...Assemble the pile of sticks shown in pic "A" to look like the model airplane shown in pic "B"........
Dave Andreski
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« Reply #539 on: March 02, 2014, 06:07:14 PM »

Thanks Pete.
You're missing a winter for the ages Davey.
Counting down the days until the backyard barbecues begin. Grin

Tony

Tony,
I'm from lower Michigan ( Detroit) and have seen plenty of rough winters. I don't miss 'em. Backyard barbeques are almost always a possibility here in Key West.
Temps here are averaging about 78-81 Fahrenheit during the day.
Still...NO place to fly.
Dave
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tross
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« Reply #540 on: March 02, 2014, 06:13:28 PM »

We're usually just out of the lake effect here, but not this year. Angry
My front yard is a 20 acre field of beans this season! Grin Shocked
First the hamburgers and hot dogs, then the planes! Smiley Cheesy Grin

Tony
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Instructions: Step One...Assemble the pile of sticks shown in pic "A" to look like the model airplane shown in pic "B"........
Dave Andreski
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« Reply #541 on: March 02, 2014, 06:19:31 PM »

We're usually just out of the lake effect here, but not this year. Angry
My front yard is a 20 acre field of beans this season! Grin Shocked
First the hamburgers and hot dogs, then the planes! Smiley Cheesy Grin

Tony
Tony,
A 20 acre field?
What's the address?
Dave
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tross
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« Reply #542 on: March 02, 2014, 06:22:26 PM »

I own a 30 acre farm.
20 in the front, 10 in the back (mostly woods)
Probably should start flying something bigger....right? Grin
Maybe when I grow up. Cheesy Smiley Grin

Tony
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Instructions: Step One...Assemble the pile of sticks shown in pic "A" to look like the model airplane shown in pic "B"........
Dave Andreski
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« Reply #543 on: March 02, 2014, 07:00:19 PM »

Probably should start flying something bigger....right? Grin
Maybe when I grow up. Cheesy Smiley Grin

Tony

That all depends on where in Indiana you're located.
Where's your farm?
Dave
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skyraider
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« Reply #544 on: March 02, 2014, 07:18:33 PM »

Tony,
   Outstanding P-51 and the graphics are awesome. I can relate to the graphics
taking more time to do than the actual build itself. But isn't that part of the fun?
Great job and hope she trims out well for you.

Skyraider
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tross
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« Reply #545 on: March 02, 2014, 09:43:24 PM »

It is part of the fun Skyraider....thanks. Grin
It's between Edinburgh and Shelbyville Dave.
Out in the sticks! Grin Smiley

Tony
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Instructions: Step One...Assemble the pile of sticks shown in pic "A" to look like the model airplane shown in pic "B"........
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« Reply #546 on: March 06, 2014, 07:10:48 PM »

Veery nice Mustang Tony.You'll have a fleet to fly when back yard barbeque wehaer arrives Grin
You don't really want to grow up do you Grin Being an old kid is more fun Cheesy
John
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« Reply #547 on: March 16, 2014, 12:53:42 PM »

A couple of us realized we had this kit on the shelf at home, or had one in the hanger already. We decided to bring them to the FAC NATS this year and have an informal, 'non official' mass launch.

This is the Greg Thomas short kit of the Piper Vagabond. 24" span.

Here's my version...

More photos can be seen here:

http://www.flickr.com/photos/[email protected]/

john ernst
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climber
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« Reply #548 on: March 18, 2014, 03:42:46 PM »

Outstanding job, John!  Clean and crisp. 
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FreeFlightModeller
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« Reply #549 on: March 18, 2014, 04:23:06 PM »

Lovely work John  Smiley
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