RE: Extreme Flight Extra 300, 50cc, 88.5inch Wingspan, Build !!!!!!!  
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RE: Extreme Flig... - 5/28/2008 4:18:14 AM   
6Packo Beer


 

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The tail feathers are salvageable, the internal structure of both wings is blitzed. Even if I could repair them im not sure i would trust them in high G-3D manuvers. I was hoping the wings had survived as I was walking up to the aircraft6, but they didn't.

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RE: Extreme Flig... - 5/28/2008 4:20:20 AM   
T3beatz


 

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Naw, His wings were beat up pretty bad also... he'd have to do some Good reconstructive work to get them back up to par...

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RE: Extreme Fligh... - 5/28/2008 5:28:45 AM   
6Packo Beer


 

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quote:

ORIGINAL: Richard D Bahmann aka/Wrongway


quote:

ORIGINAL: 6Packo Beer

[ less than 30 sec before i was doing a low knife edge pass over the field close to the flight line,]


Usually that maneuver is a high power draw on the battery setup. What battery/regulator did you say again? If it was not the FAAST wouldn't you just hate to spend money on another plane and stick the same setup in there if not robust enough? Did you recharge the battery and try to figure out how low it was or was not?

I saw a local club member lose three 50cc airplanes in about 6 months before he figured he had a bad component that he was re-using. Besides being unsafe, it is also costly.

Also in one of the FAAST threads they guys proved that the receiver can go lower voltage than the servos making lock out harder to happen. If yours truly failed it would be nice to know it was the receiver...by sending it back to Tower you may never know it was really the receiver.

Now git yer a plane and go fly. It's probably why I can't get rid of all my glow...even after a really bad day you can still find something to fly.




I had one TBM 2600 milliamp LI-ion battery fully charged before the flight running through a MPI Miracle Switch mark II regulated at 6.0 volts to the reciever. The flight was a total of 12 minutes by timer, not heavy 3d at all mostly flying in circles and checking CG/Trim. I considered reciever undervolt but after the crash the batteries checked out with 7.8 volts of charg out of 8.4 volt total charge and I had total control after the knife egde pass. Oh well other members are probably getting sick of hearing about my crash so sorry but thanks to everyone for your input / comments.
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RE: Extreme Fligh... - 5/28/2008 5:41:19 AM   
nitro wing


 

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No worries on the crash talk,since it seems equipment related,everyone is listening,and likely interested on your and others input.

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RE: Extreme Fli... - 5/28/2008 5:41:47 AM   
bgold


 

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Were you running one battery for both ignition and receiver/flight pack.

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RE: Extreme Fli... - 5/28/2008 5:52:56 AM   
6Packo Beer


 

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no no, I had a totally seperate ignition setup, never any problems with that.

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RE: Extreme Fli... - 5/28/2008 5:20:59 PM   
M64



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Hey guys

what would the performance be like when using a DA50 and a slimline pitts muffler? would there be enough pull to be able to install the extra weight of a smoke system?

M64

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RE: Extreme Fligh... - 5/28/2008 6:39:39 PM   
Richard D Bahmann aka/Wrongway



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quote:

ORIGINAL: 6Packo Beer

I had one TBM 2600 milliamp LI-ion battery fully charged before the flight running through a MPI Miracle Switch mark II regulated at 6.0 volts to the reciever. The flight was a total of 12 minutes by timer, not heavy 3d at all mostly flying in circles and checking CG/Trim. I considered reciever undervolt but after the crash the batteries checked out with 7.8 volts of charg out of 8.4 volt total charge and I had total control after the knife egde pass. Oh well other members are probably getting sick of hearing about my crash so sorry but thanks to everyone for your input / comments.





6Pack Dude!

I emailed my buddy Doug (Absolut Yak) and asked him what he was using on his 88 Yak when it locked him out of JR 2.4. Here is what he said.

""My Yak slapped in, and thank goodness it was able to be rebuilt and is what I fly now. I had an MPI Miracle switch with regulator from TBM and was flying a 2300mah TBM battery that checked out at 8.04 volts after the crash. The servos that were still hooked up worked after the crash before I picked things off the ground. I had been doing simple hard aileron inputs left and right to about 30 degrees of roll either way and it locked me out. My thoughts were the instantaneous load of the 5955's on such a large surface simply overwhelmed the throughput of the regulators. So, I am on the A123 bandwagon. Right now, I'm using Sin City Black Packs, and Smarfly switches with dual leads to the receiver.""

Food for thought for ya. I even think Diamond Dave lost a similar size plane a while back and it was a single MPI switch, he found his problem when the switch fried just before the plane came down so ungracefully.

< Message edited by Richard D Bahmann aka/Wrongway -- 5/28/2008 6:41:21 PM >


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RE: Extreme Fli... - 5/28/2008 6:59:41 PM   
JoeAirPort



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I use a SmartFly Super switch on my giant birds. One of the best switches on the market IMO. VERY heavy duty.

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RE: Extreme Fli... - 5/28/2008 7:02:23 PM   
Jake Ruddy



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the MPI switches are known to have issues.. I kind of thought about that when I read that.

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RE: Extreme Fli... - 5/28/2008 10:05:15 PM   
xtraflyr


 

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quote:

ORIGINAL: Jake Ruddy

the MPI switches are known to have issues.. I kind of thought about that when I read that.

I always thought they failed open? Maybe Im thinking about a different switch?


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RE: Extreme Fli... - 5/28/2008 10:32:36 PM   
6Packo Beer


 

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Yea they fail open but i guess keeping up with amp demand isn't really a failure so to speak, just poor design of the regulator if its infact true.

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RE: Extreme Fli... - 5/28/2008 10:36:34 PM   
diamondave



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yes i did loose a plane cause of an mpi switch ....so now i use the wolverine 2 in 1 for my reciever, but the fasst thing with heat can be a problem, mine failed, luckily on the ground just before take off, and i mean just b4 take off, my hand was on the rudder ready to pull out from stand, got locked out, turned power on and off and it came back, then shut out again, did that 3 times, took it home and it worked fine, then i found some of the threads about the heat problems others are having, i had the EXACT same symptoms with mine, i truly believe it was heat related, i sent it back to tower after getting a runaround with futaba, tower refunded me no questions asked, so now i am using my pcm again, i still like thet 9c radio but man hearing how bad futaba treated 6pack makes me want to change myself, i know they dont want to admit the problem with heat, but they are still selling them, there is going to be ALOT of failures this summer, mine failed at the end of april here in arizona, everyday that goes by they dont do somthing i dye a little inside, haha, my loyalty to them does anyway, sorry about the loss 6pack, when i lost my other plane to the mpi i got out of the hobby for a while, it was devistating to loose a plane cause of a failure like that, not my thumbs, and that was my 1st big gasser, i wont touch a mpi product anymore, anything from them i dont care what it is, electronic or not, my switch failed and when i looked at the back of it, once the case was off, the soldering job was rediculous, hardly any solder on 2 of the main wires, you could almost not even tell where it was supposed to go, it was the fancy switch with the led's on it, and i did find out more people had the same problem with that switch too, as far as fasst, there is some "heated" discussions on fg's site about all that, i will stick with my pcm for now, but contemplating a brand switch down the road, just cause i am following the problem and dont like the way its being handled at all, again sorry 6pack

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RE: Extreme Fli... - 5/28/2008 10:38:17 PM   
diamondave



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mine did not fail open, not the one with the 3 led lights on it, naha no way no how, failed as failed can be, OFF

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RE: Extreme Fli... - 5/28/2008 10:40:53 PM   
6Packo Beer


 

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yea this was my 1st gasser to, I talked to Chris at EF today - man what a guy he told me he is going to look his stock over and we will talk later this week he seems very willing to help a brotha out. I tell you if he keeps going the way he is with the EF brand they will be the Desert Aircraft of 3D planes, great company and an assett to the RC community.

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