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The Falcon Flies

December 15, 2013 Leave a comment

Today the winter weather was mild enough that I could not pass up the chance to launch the AJR-48(F).

She’s a rocket.

On take off I used flaps which made her rather zippy. An unexpected barrel roll even took place. No big deal and once I retracted the flaps the plane handled well.

The test flight was going good and I managed to perform some slow speed and quicker paced runs.

However on some tight banking the plane rolled over and I crashed.

Here is the video.

– Post flight view. The nose had taken all the impact, some body damage and a motor mount had loosened up.

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– Opted to make whole new nose section. Double layer foam top and bottom. New way to keep it closed.

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– Improved view compared to the previous deign.

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– Repaired and ready for more action.

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AJR-48 Falcon Ready

December 8, 2013 Leave a comment

Did not have enough time this weekend to fly the plane but this evening I managed to finish the build up and min wax work.

–  A little test to see how the view is from on board. Not to bad.

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– The 2 pieces near the top are to cover the open sections on the underside of the wing.

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– Nose section with the GoPro.

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– Two batteries to help the balance.

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– Cargo door is a little small to handle an egg so were going to make a “care” package with a chute.

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– Used the same design from the YC-14.

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– GoPro access.

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– This time the whole mount is removable.

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– Balance test. When I do it with my fingers it is not as dramatic but still looks good.

 

 

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– I know this wing flies nicely and I was getting used to it.

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– This is why I went with the name Falcon.

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– Should be very fun to fly.

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– Cargo hatch is functional and will be better then a bomb bay in the winter.

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– Simplified wing pods as I now run the ESC inside the plane/wing.

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Only 1300g vs the prev plane which was 800g. I’ve added a GoPro, 2nd battery, larger props, 2nd esc, 2nd motor and 2nd rx unit. So respectable.

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AJR-48 Falcon Twin Prop RC Plane

December 7, 2013 Leave a comment

AJR-48 Short & Slim Flies

November 30, 2013 Leave a comment

In the morning I tested the weight reduced modifications.

It flew but was still tail heavy!

So after that flight I cut 2″ off the tail and re-did the nose firewall.

Much better.

– The first job was to remove the tail from the body.

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– Based on the FT Spitfire I opt’d to remove 2″.

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– Then I inserted 2 pieces of foam I could keep the structure solid and had something to glue to.

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– Made sure to align and check the angle on the tail.

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– Picked up a few grams of weight over but that is due to nose mods.

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– I put on a full piece of wood to ensure the motor had something beefier to be glued to.

Increased nose weight which was wanted. Motor now points down and to the right.

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– Painted the underside of the wings to help me see it better.

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– Tail to firewall 32″ just about 35″ with the motor gear.

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– Post flight. I need to glue the rudder section. It was misaligned.

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– Also checking for water/snow issues.

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– The tape traps the snow so I will remove and paper that sections.

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– See the water build up. So all the new sections will get MinWax’d tonight.

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AJR-48 Slim Chance

November 30, 2013 Leave a comment

Tonight I had my first winter flight experience.

Testing the AJR-48 in single prop config. Glad the snow was soft because the tail heavy issue is still present.

So I went radical on the plane.

– Time to perform an operation and lose some weight in the tail section.

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– I removed as much as I could while trying to keep some of the strength.

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– Pretty big chuck of foam gone.

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– Removed the metal rudder servo and put in a 15g eco one.

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– Wide power pod also was trimmed down. Removed the whole bottom section.

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– A lot tighter but manageable.

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– At least I know it will land in snow with no issues.

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– It is indeed a lot lower now.

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– I think the centre foam bit is a touch to big but need belly surface.

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– I hope this fixes the tail heavy issues and returns some power.

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I may alter the power pod yet to move the battery even more forward.

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– 550g lighter.

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AJR-48 Goes Single

November 23, 2013 Leave a comment

Why not. After this mornings nose crunching test flight I decided why not try a single engine.

The key getting the prop off the ground, I had to build up the nose section, mess with the battery position but in the end I think this might work…

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AJR-48 Rebuild

November 23, 2013 Leave a comment

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The plan was good but in the end the elliptical wing and high winds dashed my day.

The rebuild

– The WWII bomber is slightly narrower then the AJR-48.

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– That impacts the 48.

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– For sure. The WWII is pushing me to produce very tight air-frames.

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– Onto the operation.

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– Broken spar.

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– Detached wing.

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– Tail removed.

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– Took off 3″ from the tail.

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– Hollowed out the support to save weight.

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– 12″ front section for a 30″ in total length.

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– Adjusting the angle for the trail section.

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Sides being built up.

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– Wing repair under way.

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Adding a little bend.

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– Motor mount repairs.

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– Took a chunk out of the wing.

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– Additional support for the wing.

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– New solid piece across the top of the wing.

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– Right motor all setup.

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– Mostly repaired.

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– Extended the battery wiring harness.

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– New nose.

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– Level wing.

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– At least I checked ;).

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– Added rubber bands but the wing is not removable at this time.

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– Balance test.

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– Locating the batteries.

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– The changed did make the plane lighter.

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– Feels good. Solid but not as heavy.

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– Pushed the batteries right back.

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– That achieved level balance.

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– Decent nose.

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– It does look good. Too bad the wing is enemy.

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– Tail is much better now as well.

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