Introducing The “How Did That Happen?” Challenge 2020

[flyingkelpie]

How sad. I suppose you have those days. I had one of those days a few days ago. (see my post above)

 

[OliverW]

What happens when the switch controlling all electronics on board decides to quit working running nitro.
Straight in about as tight as she could go engine just a screaming until the sudden stop from about 250 feet up. There is a nitro engine on the front about 4 to 5 inches down in the dirt. Power and torque.

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What happens when doing an inverted high speed pass......flying inverted down is up and up is expensive.

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Both on the same day should of stayed in bed I think.

That happened to me too with a 70cc plane... I learned the hard way never to trust a miracle switch

 

[OliverW]

I was cruising along, everything was fine and dandy until all of a sudden it dove into the dirt. Turns out the power switch failed...

 

[speedbirdted]

I was cruising along, everything was fine and dandy until all of a sudden it dove into the dirt. Turns out the power switch failed... View attachment 184895

Damn. Reminds me of a club member who somehow thought putting 6 high voltage servos worth of amperage through a tiny switch was a good idea. Resulted in his very expensive turbine model looking like this but more burny

 

[OliverW]

Damn. Reminds me of a club member who somehow thought putting 6 high voltage servos worth of amperage through a tiny switch was a good idea. Resulted in his very expensive turbine model looking like this but more burny

Sounds fun! Our switch had a sketchy solder joint hiding under some heat shrink

 

[flyingkelpie]

I had that happen but I'm still not certain what caused it. I was cruising out when BAM! into the to the ground goes my second scratchbuild. That was the BluCub 2 above. It died.

 

[Tench745]

Sounds fun! Our switch had a sketchy solder joint hiding under some heat shrink

I was looking at rc aircraft power switches recently and one specified "fails to the on position" or something similar. I don't know how they do that, but it seems like a good idea to have a switch that won't kill the plane if it decides to die.

 

[2jujube7]

Here's a great screenshot from my 30 second FPV flight in my modified FT Arrow...

 

[CorsaiRC]

my tiny whoop battery came off mid-flight and I "landed" under my oven an it took FOREVER to get it

 

[2jujube7]

Here's another (extremely) successful flight with FPV. My controls gave out at around 60ft above the ground, and I went straight into a tree. Nothing was broken too badly and there was no one around

 

[tesseract]

Well thats sad. Its said that russian spies copied the Concorde and made the Tu144 for the USSR. They used cheap materials. This is why everyone hated it

Spoiler!

The plane dissapears

 

[Piotrsko]

The only switch that won't fail is one that isn't there. I will accept the inevitable failure of my plugs from fatigue. That at least gives the attentive a failure warning.

 

[LitterBug]

When you fly slow and calm at an indoor fly and others are racing around, You may just get your tail munched off!

 

[Crawford Bros. Aeroplanes]

I tried to build a versa wing and got distracted

 

[Bricks]

I was looking at rc aircraft power switches recently and one specified "fails to the on position" or something similar. I don't know how they do that, but it seems like a good idea to have a switch that won't kill the plane if it decides to die.

I have ordered parts for this mosfet switch which fails to the on position, a simple but elegant design, and very cheap to build and it will handle up to 250 amps if by chance a servo jams.

The vibration from gas and glow engines are hard on mechanical switches.

RC Groups - View Single Post - Electronic receiver switch.

 

[flyingkelpie]

I tried to build a versa wing and got distracted

View attachment 185095

Is that a BluCub in the background?

 

[Crawford Bros. Aeroplanes]

Is that a BluCub in the background?

It used to be a Bird Dog. It's no longer with us.

 

[2jujube7]

I tried to build a versa wing and got distracted

View attachment 185095

How does it fly? (I'm guessing it does )

 

[Crawford Bros. Aeroplanes]

How does it fly? (I'm guessing it does )

I never tried

 

[flyingkelpie]

My BluCub is gonna get resurrected!