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Post  Tee Bee on Wed Jul 03, 2019 10:49 pm

Progress!
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Post  Kim on Fri Jul 05, 2019 11:08 pm

So, another good day out in the shop, after some lawn mowing, an oil change for the HHR in town, and nap...in that order.

Also had a great time visiting with Rusty and crew on the Video Hangout for an hour or so.

Sinbot and Lil' Punkin are now ready to go, so there should be some new video shortly!

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Post  1/2A Nut on Sat Jul 06, 2019 2:59 am

Kim you may very well be the first one able to report some actual run time data on the
TD .020 aluminum tank. I have both size tanks curious what they can do up in the air.

Popcorn
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Post  Kim on Sat Jul 06, 2019 6:57 am

1/2A Nut wrote:Kim you may very well be the first one able to report some actual run time data on the
TD .020 aluminum tank. I have both size tanks curious what they can do up in the air.

Popcorn

Hey Brad,

Well cool! I'll make sure to have some cameras running. Hopefully the weather will give me some good air today !!!!
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Post  andrew on Sat Jul 06, 2019 8:00 am

Lovin' this. The "Out in the Shop" thread has been fantastic.
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Post  roddie on Sat Jul 06, 2019 8:02 am

Good luck with the flights Kim! Great thread! Thumbs Up
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Post  1/2A Nut on Sat Jul 06, 2019 8:45 am

Great should be interesting to have a go to number to work with, happy flying and to all a calm steady breeze! Old Bugger

I am going to do a early bird guess of 6.4 mins. of run in the air time. Popcorn

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Post  Kim on Sat Jul 06, 2019 9:01 am

1/2A Nut wrote:

I am going to do a early bird guess of 6.4 mins. of run in the air time. Popcorn

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Awright!!!

Brad's in for 6.4 minutes !!!! Very Happy Very Happy Very Happy
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Post  akjgardner on Sat Jul 06, 2019 9:35 am

7.2
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Post  Kim on Sat Jul 06, 2019 4:30 pm

Got a calm, but HOT day here on the hill.  I got Sinbot charged up and loaded with cameras for it's first flight since getting worked through.

I only put in one flight...the plane was fine...but the heat was cooking me.  I've become SUCH a wimp, but may try to get Lil' Punkin out once the sun gets lower.

Anyway, I crunched out a video of the flight, with Sinbot bouncing around for an almost exactly 4 minute flight.  

The engine run---this time at least- was only a couple seconds over 2 minutes, so I'll be looking to see what's going on there.



https://youtu.be/Pg5E5McK91Y


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Post  getback on Sat Jul 06, 2019 4:56 pm

Cool Man i really like that plane that has been mutated to what it is today , Yea i get the too darn hot to bee outside long , Thanks for getting out there in it , i noticed about min 3.00 the wing tip on the other side was a wiggling some ( probably just loose in the sunshine ) 4th of July Flag
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Post  getback on Sat Jul 06, 2019 4:58 pm

O yeah i was going to ask is climbing up with a powered glider to the Left and right is down (( from the old single channel pulse )) ???
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Post  1/2A Nut on Sat Jul 06, 2019 8:56 pm

Thank you for sharing Kim, odd it conked out at 2 mins. Huh...
A stock red tank gets like 1.7 mins as I recall.
Engine was pulling the plane good by the looks of it unloaded from 17.7k - 18.4k  
I use 15cc tanks for the TD .020 gets 3.7 to 4.1 mins with a speed prop. I want
to incorporate the aluminum TD tank in a project just not sure of the run time.
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Post  Kim on Sat Jul 06, 2019 9:03 pm

1/2A Nut wrote:Thank you for sharing Kim, odd it conked out at 2 mins. Huh...

Engine was pulling the plane good by the looks of it unloaded from 17.7k - 18.4k  
I use 15cc tanks for the TD .020 gets 3.7 to 4.1 mins with a speed prop. I want
to incorporate the aluminum TD tank in a project just not sure of the run time.  

Hey Brad,
There was fuel left in the tank, and in spite of a good test run the other day, I found some goop around the shower head's ports. Got it all cleaned and pretty now, and will have another run, maybe in the morning to see if it has straightened up!
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Post  Kim on Sat Jul 06, 2019 9:08 pm

getback wrote:O yeah i was going to ask is climbing up with a powered glider to the Left and right is down (( from the old single channel pulse )) ???

Hey Eric,

Sinbot is two channel and so has an elevator.  Single channel planes are adjusted to climb in level flight, and light rudder input can let it turn AND continue to climb, but at a shallower rate.  Harder rudder brings the nose down to level in the turn, and if you hold it, puts the plane in a dive.

Recovery happens when the plane is leveled, zooms up, and rudder is applied again in a quick blip to turn it again, and level it.


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Post  Kim on Sat Jul 06, 2019 9:21 pm

And now, Lil' Punkin has flown successfully!  Two old dogs in one day...with both back in the shop undamaged!  The air went totally still in the last couple hours of daylight, so the little single channel plane got dragged out to the pasture.

It's a pretty serene cruiser, and it'd be fun just to sit in a lawn chair and watch it.  Figure that it'll have the same relationship with Tony's single channel micro stik that my 3 Meter BOT had with his hyper powered "Angry Barn Swallow Stik"!!!!

Pitch recovery is a bit slow, so I may nudge the CG back a bit, or shim the front of the wing.

No video on this round, but I did get a couple flight photos:

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Post  Marleysky on Sun Jul 07, 2019 6:33 am

Fantastic foto’s ! That Punkin is a handsome looking aircraft, well really it’s a handsoff aircraft in landing mode!
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Post  getback on Sun Jul 07, 2019 8:57 am

It still looks like fun and everybody likes easy 4th of July Flag Thanks for explaining the lift thing with the pulse commander !? I remember when i tried the one i had ( don't remember the name but prob. a cox plane /engine ) I recall the instructions saying one way round was up and the other was down , the one i used to much >> The reason i asked Fireworks
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Post  roddie on Sun Jul 07, 2019 9:16 am

Kim wrote:

(to Eric-edited)

Single channel planes are adjusted to climb in level flight, and light rudder input can let it continue to climb, but at a shallower rate. Harder rudder bring the nose down to level, and if you hold it, puts the plane in a dive.

Recovery happens when the plane zooms up, and rudder is applied again to turn and level it.

This is very helpful information for someone like me, who's hoping to try flying RC someday. You put single-channel/rudder-only control into words that are straight-forward easy to understand. Thanks Kim! Always a pleasure to read your posts.
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Post  Kim on Sun Jul 07, 2019 4:23 pm

roddie wrote:
Kim wrote:

(to Eric-edited)

Single channel planes are adjusted to climb in level flight, and light rudder input can let it continue to climb, but at a shallower rate. Harder rudder bring the nose down to level, and if you hold it, puts the plane in a dive.

Recovery happens when the plane zooms up, and rudder is applied again to turn and level it.

This is very helpful information for someone like me, who's hoping to try flying RC someday. You put single-channel/rudder-only control into words that are straight-forward easy to understand. Thanks Kim! Always a pleasure to read your posts.

Thanks Roddie...I appreciate it!!!!
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Post  1/2A Nut on Mon Jul 08, 2019 6:30 am

Kim you may find some inspiration from John Woodfield's youtube site here is a vid of him flying a "Sinbad"
He has quite the selection of projects including a "Super Sinbad" that will flourish with pod type power plants.
I think all he doesis build vintage / some moderns and post vids. for a living. I subscribed a few months back
he keeps cranking them out.  

https://www.youtube.com/watch?v=4YyELwCPdyg

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Post  Kim on Mon Jul 08, 2019 7:52 am

1/2A Nut wrote:Kim you may find some inspiration from John Woodfield's youtube site here is a vid of him flying a "Sinbad"
He has quite the selection of projects including a "Super Sinbad" that will flourish with pod type power plants.

Brad!

That is fantastic! Especially loved the easy "Slope Touch and Goes!!!!!!" This is a dangerous video...last thing I need is yet ANOTHER shiny thing getting my attention!

I need to check to see if the levee we used back in the day has been posted or not. Maybe take Sinbot down there for a few laps!

Gonna save this to my Play List of videos I run when I'm working on stuff!

Thank You !!!!!!!!!!!!
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Post  1/2A Nut on Mon Jul 08, 2019 2:57 pm

Hey Kim, yes he has many lovely birds to inspire a build and good viewing!

I did slope back in the day it is fun. Great pod power options, those big ones John flies
seem to need very little wind to stay flying. A monster with a TD .09 would be fun.
Enough lift to haul 4 cameras or a 360 deg camera on a short boom above the wing.
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Post  Kim on Mon Jul 08, 2019 4:32 pm

1/2A Nut wrote:
Enough lift to haul 4 cameras or a 360 deg camera on a short boom above the wing.

Oh heck yeah!  I'd have cameras all over one of those suckers!  I'm sure an .09 would haul one of those with authority, and with the kind of boomers that break loose around the hill, would probably cruise around after the engine dies 'till I got sick looking up!

Year's ago, a bud and I drove out to the middle of Kansas to fly in a slope contest at Lake Wilson, near Lucas.  Neither of us placed, but had a good time, mostly---Paul's sailplane clipped a wind meter, and got some damage to it's leading edge.  He was a little ticked for a while, but got over it.

Planning on doing it again next year:

http://www.midwestslopechallenge.com/home.html
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Post  Kim on Tue Jul 09, 2019 9:34 am

A few video captures from yesterday's flights with my little single channel model, Lil' Punkin. I didn't do a good job of placing the key fob cameras, and so don't have the full length shots of the fuselage I like.

But it's parked and waiting for another round at first chance.

The plane has no elevator to control pitch, or throttle, and has to be carefully set up to tolerate the difference between powered flight and glide. I wanted a bit steeper climb and longer flight, so switched to a "Tee Dee" version of the .020, with a 1/32 ply shim low behind the engine to point it up slightly, and another shim under it's wing's leading edge.

It worked fine with the cameras on board, but I didn't test it without them, so that'll be next.

I've laughed with a couple fellow flyers about how, back in the day, we wanted SO bad to have the more expensive radios with what was called at the time "Full House Control" (meaning rudder, elevator, aileron, and throttle control). Now, with advanced radios cheaper than they've ever been, several of us are apparently obsessed with getting planes to fly with only rudder control.

Who woulda thunk it ???!!!!!!

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