thunker54
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Joined: February 17th, 2009, 4:39 am

March 19th, 2018, 1:34 am #441

I finally got a chance to get out and fly my WWII P-47 Thunderbolt warbird.  I'd done some work on it and it had been waiting for a test...

-  I re-worked the landing gear - and added some shims on the back of the landing gear mounting bracket - to angle/"rake" the landing gear more forward.  Trying to help the "nose-over" tendency of this plane when taxiing.
-  I added a landing gear deploy/retract sequencer - so that one gear goes down/up before the other - solely for looks and more scale operation
-  I added a 4-second rate reducer on the flaps servos - so the flaps deploy/retract gradually.  Again - solely for scale looks.''
-  I finally got an airbrush and tried to do a little weathering here and there.

All worked great - piloting was mediocre at best.  ;-)  But I brought it home in one piece!

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thunker54
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Joined: February 17th, 2009, 4:39 am

March 19th, 2018, 10:17 pm #442

I stuck a flight stabilizing gyro in this plane - this was a little flight to test it out and adjust the gyro gains.

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thunker54
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Joined: February 17th, 2009, 4:39 am

March 22nd, 2018, 9:28 pm #443

Finally took my new Focke-Wulf 190 WWII German fighter out to test it.  Flew GREAT - like it was on rails.  All I did was circle the field a few times and bring it down.  I did do one aileron roll and boy does it roll fast - like a spinning bullet!
I didn't use any flaps taking off but I dropped them about 3:40 when coming around to land.  I put a servo "rate reducer" on the flaps to make them deploy/retract slowly.  They worked flawlessly and slowed the plane down nicely to land.

This is the first 4-cell (14.8 volt) plane I've flown.  I sure do like that extra power - but it comes at the expense of weight.  This plane weighs about 3.5 pounds flight ready.  I had power to spare - I never went more than about 1/3 throttle.  This thing would scream if you poured the gas to it.

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thunker54
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Joined: February 17th, 2009, 4:39 am

March 25th, 2018, 12:49 am #444

A little fun with my Stevens Shaft 400.....

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thunker54
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Joined: February 17th, 2009, 4:39 am

April 22nd, 2018, 8:31 pm #445

Check out this guy in England's build of a B-17 RC plane.  He did the maiden flight with FPV - viewing an on-board camera through goggles.
The detail he put in to the model is amazing....  4 on-board cameras with head tracking and all....
I don't think I'd have had the nerve to even try to fly it after all that work.

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thunker54
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Joined: February 17th, 2009, 4:39 am

April 30th, 2018, 8:22 pm #446

The shortest RC flight I've ever done.
Upgraded to a 600 watt motor and 4-cell lipo battery.  Didn't have the prop on good enough.
Ripped out the right landing gear, but it was an easy fix.
This is why I like to shoot video of all my flights.  In the slo-mo view you can clearly see that the right landing gear bracket is loose in the wing.  So that bracket was ready to come loose anyway - it was just a matter of time.  It's epoxied in securely now!  I need a little lube on a squeaky wheel, too!

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thunker54
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Joined: February 17th, 2009, 4:39 am

May 6th, 2018, 2:10 pm #447

After the last failed test flight where I threw my propeller on my P-47 power upgrade, I secured the prop on more securely and headed out to try it out today.  As my regular field is busy with Cinco de Mayo, I went to the soccer complex by the power station.   Wires everywhere.  But I took it up for a few circles of the field so I could see if it would perform - as I've made TONS of changes now from stock....

1.  Upgrade to E-flite Power 25 870kv 600Watt motor
2. 60 Amp speed controller
3. 9.8"x6" 4-blade prop
4. Eagle A3 6-axis flight stabilizer gyroscope
5. 4s 2600 mAh 50C 14.8 Volt battery
6. Shimmed landing gear brackets forward to try to help on the nose-overs while taxiing

The flight was successful, but laaaawsie! - did it have power!  As soon as I took off it seemed the plane was gone in the distance.  I quickly learned to back off on the throttle on this setup.  From there on I never went more than 1/2 throttle - and mostly less than 1/3 throttle.  The power system seemed to hum along nicely with no complaints, though.  I'll bet this plane would push 100 MPH if you opened it up.

With all the modifications from stock I've done now  - and especially with the new 600 watt motor and 4-cell battery - there's a lot of weight added.  Stock, this plane was around 45 ounces.  Now it's 55 ounces.  And add two for two Mobius cameras and it's up to around 57 ounces - over 3.5 pounds.  And the wingspan on this plane is about 44" - so the wing loading now is pretty high.   Which means the plane is going to fly pretty fast to maintain lift.  And it did.  But it still flew REALLY solid.  Just faster.  But what would one expect from putting a V-8 in a Volkswagon?  <grin>

Anyhoo - here's the flight.  Them con-fangled power lines got a LOT closer than I thought this time.  With this bigger motor and extra power. the plane is a long ways away quickly it seems...  And that over-turned trash barrel when landing - I'll swear, obstacles are magnets for my airplanes.  HA!  This plane will be a lot better at a more open field... Of course flying is easy - simply avoid the edges of the sky.... which includes objects protruding from the ground  ;-)

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thunker54
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May 21st, 2018, 9:34 pm #448

Upgraded my radio to a Futaba 14SG, so I'm going through all my planes to get them tuned in to the new radio.
Here's my Millennium Slow Stick X.  10 years old now and it was my first aileron trainer.  I've crashed & repaired it more than a few times, and re-covered it at least once that I can remember, but it still flies great!

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thunker54
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May 23rd, 2018, 1:49 am #449

Another little flight with my FMS PT-17 Stearman.  I'd never rolled this plane - was always kind of afraid it wouldn't roll with those single ailerons.  But it does roll after all!
Can sure use work on my landings.....

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thunker54
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Joined: February 17th, 2009, 4:39 am

May 27th, 2018, 10:09 pm #450

Second outing with my new FW-190 butcher bird....  I noticed the flaps weren't retracting quite all the way up.  I adjusted the linkage. 
Also - after the maiden flight I was investigatiing some vibration I picked up on the on-board cameras and found that the motor was NOT completely tightened down to the firewall.  Came that way from the factory?  I cinched it down and that took most of the vibration out.  That could have made for a really, REALLY bad maiden flight!  Bad on Flightline for that.....

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