Aviation models Yak 54 33% maiden and death

[Boogie]

No range check??

[Throttlestick]

Actaully Trey got it right off the bat.The crystal popped out.It was the only thing that I did not check and could not find anywhere in the aftermath.
So Trey send me your address and I will send you a mystery prize.And no guys it will not be a turd in a sack.

[AirMcNair]

Here we go. the freking crash pics...... Im about as sick as Big D.

Believe it or not there is a motor in that top right pic......See the Can. its still attached...

[Throttlestick]

I just got done puking.Man that was a new engine.Thank god the ground was soft.The engine does not look that bad just looking at it though.Only the muffler and ignition are really wasted.Off to AI in a few weeks I guess.

[JustPlaneCrazy]

Man that really sucks !

Really sorry for the loss.

[Big J]

Throttlestick,

I'm very sad to hear about your loss. Any crash is bad enough, but a crash on the maiden is a real heart breaker. I was wondering what kind of receiver you were using. My Futaba receivers have a tight-fitting plastic cap that attaches over the crystal to hold it in place. I was just wondering if I need to tape over this cover as well. I've used Futaba for about 25 years and never had a crystal pop out. Please don't take this as an argument for Futaba or against any other radio brand. I know there are other brands just as good or better. It's just that, since I only use Futaba, I am not familiar with the design of other brand receivers, so I don't know if others have this same cap over the crystal or not. Just want to make sure that the same thing doesn't happen to me if there's anything I can do to prevent it.

[MetHerInBaghdad]

good question BigJ. The caps are excellent, but many receivers don't have them. Also, gassers are vibrating machines and it is just a safe practice to put tape over them anyway. Even on my foamys I put tape over the crystal just in case... even though it is a little cheap GWS receiver.

My receivers with the plastic cover are excellent and probably will never come out, but I am too scared now to chance it. Just in case....

[staggerbee]

Damn JR radios!!!
Sorry for your loss......
If they would fix a few of there long standing issues I might buy one and try it out, But I have seen about 4 birds go in due to the crystal ejection system that seems to be built into there reciver's, Hell one of them had tape on it and it stll came out.......

Buddy

[SUPERFLYJAY]

sorry to hear about the yak, i had a similar problem with a 44% extra i had took off flew a few laps then all the sudden the plane got sluggish wouldnt turn the way it was supposed to. landed and discovered 1/2 of the plane was dead. was running 2 recievers (luckily the throttle was on the second reciever) after looking inside saw crystal laying in the bottom of the fuse, all i can say is im a firm believer in splittin the plane up on 2 recievers

[AirMcNair]

	Quote: Originally Posted by staggerbee
	Damn JR radios!!! Sorry for your loss...... If they would fix a few of there long standing issues I might buy one and try it out, But I have seen about 4 birds go in due to the crystal ejection system that seems to be built into there reciver's, Hell one of them had tape on it and it stll came out....... Buddy

Just to let you know it was a futaba RX not JR.

[Throttlestick]

It was a Futaba reciever that did not have the plastic cap a 139dp I believe.
I have preached and begged people in the past to tape up there crystals.I just did not do it on this plane.It was the only thing that I did not check and it cost me dearly.
I was so in love with this plane and proud.It was my first new gas engine that I had bought and was so proud.
I kept waking up last night and going over the accident and how stupid it was not to tape that crystal in.Man what a bummer.
I have had teeth pulled that did not hurt that bad.

[staggerbee]

Wow!!!!!!!
In my 20 years in RC that is the first time I have heard of a futaba losing a crystal......

I guess there is a first for everything!!!!!

Good thing I am running the 319dps in mine huh

[AirMcNair]

	Quote: Originally Posted by Throttlestick
	It was a Futaba reciever that did not have the plastic cap a 139dp I believe. I have preached and begged people in the past to tape up there crystals.I just did not do it on this plane.It was the only thing that I did not check and it cost me dearly. I was so in love with this plane and proud.It was my first new gas engine that I had bought and was so proud. I kept waking up last night and going over the accident and how stupid it was not to tape that crystal in.Man what a bummer. I have had teeth pulled that did not hurt that bad.

Alright Big D. Time to stop beating yourself over the head with this one. Fortunatly we know what the problem was and I assure you along with yourself, that will never happen agian. I feel kinda responsable due to the fact that I helped you build it and went over the check list with you twice in my house alone and 3 times at the field, and still looked over the crystal. Either way its over now. I went to sleep with it in my head and woke up the same way....... Dont worry bro were here for you! Remember what happen with mine 6 months ago........ Not maiden but sure hurt... and Im back with a vengance.

[AirMcNair]

	Quote: Originally Posted by staggerbee
	Wow!!!!!!! In my 20 years in RC that is the first time I have heard of a futaba losing a crystal...... I guess there is a first for everything!!!!! Good thing I am running the 319dps in mine huh

This will be the fith one I have heard of and the second one I have seen...... Single cylinder thumpers!!!!!!

[aviti]

I had my chance to learn about crystals coming out with a very fortunate (lucky) outcome. I was doing an extended engine run up on my H9 1/4 scale Cap with Saito 180. While still on the ground, I brought the throttle back and no response. Thought it was the linkage but actually was the crystal popped out of my JR receiver.

I've told this story several times online with the hopes that it won't happen to someone else. But still it has happened again and again (usually when it does, it is an experienced guy who just never heard of it happening).

I think the receiver companies (JR especially) should either find a better attachment method or put huge stickers all over warning users to tape in their crystal.

Sorry about your loss thottlestick. Sounds like you knew of the popping out issue but these things still happen. I'm hoping that me almost losing a 1/4 plane is enough to make me remember. I'm sure losing a nice plane like that will make you triple tape and triple check your crystal.