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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 8/7/2008 12:39 AM   
Rezagh


 

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Status: offline 		Well, reason I used it is we did the manual with Greeve pipe and I had to cover regular muffler so there is no ambiguity in assembly for customers.


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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 8/8/2008 6:57 PM   
BaldEagel



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Status: offline 		Rezagh

Would you be so kind as to give me the dimensions of the front of the engine box and existing fixings, I want to see what engine options I can come up with.

Mike

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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 8/9/2008 6:25 AM   
Rezagh


 

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Status: offline 		Sure Mike. I'll get you the info
Reza


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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 8/10/2008 3:25 PM   
aaxiss



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Status: offline 		reza, you flying today out at OCMA?, if so feel like dropping off some old RC mag to me? I am going nuts here and all my friends gone to river or glamis this weekend. I will not expect you just hoping to catch you before you leave if your headig out there today


thanks mucho

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If there is a 40% plane out there drawing 42 amps it's because it has an on-board welder.

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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 8/11/2008 10:57 AM   
BaldEagel



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quote:

ORIGINAL: Rezagh

Sure Mike. I'll get you the info
Reza


Thanks Rezagh, once I have done the investigations I will post on here to give others the chance to see what will fit.

Mike

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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 8/11/2008 3:26 PM   
Rezagh


 

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Status: offline 		Mike,

front of the box the engine mounts has a height of 5 1/2" and width of 6 1/4". The box is sticking out from the fuse about 11 1/2".

Hope this helps,
Reza


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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 8/11/2008 3:52 PM   
BaldEagel



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Status: offline 		Rezagh

I note that the engine is not central on the box, can you let me know the offset?

Mike

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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 8/11/2008 4:20 PM   
Rezagh


 

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Status: offline 		That would be a little more difficult to tell at this point. Engine box came marked for DA85, I could've easily done it by finding the center and give you the offset but now engine is mounted. I need to take the engine off. If for any reason I had to take the engine off, I can give you the offset. Quique doesn't mark the offset on his planes. I personally like to see the offset being marked that would make it easier for those who go with different engines.

Sorry Mike


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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 8/12/2008 12:12 PM   
BaldEagel



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Status: offline 		Rezagh

Can you measure the position of the fixings of the engine from either side of the motor box on each side and top too bottom, this would give me an idication?

Thanks
Mike

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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 8/24/2008 7:17 AM   
raimondi


 

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Status: offline 		Helo guys, I am planing on using single servos on the wings ( JR 8711)is anyone planing this to????? Will apresiate sugestions!!

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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 8/24/2008 9:50 AM   
RoysterDW



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quote:

ORIGINAL: raimondi

Helo guys, I am planing on using single servos on the wings ( JR 8711)is anyone planing this to????? Will apresiate sugestions!!



Single servos (one per wing) work for me in my 35%er with no probs at all for IMAC or 3D.

< Message edited by RoysterDW -- 8/24/2008 9:52 AM >

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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 8/24/2008 6:38 PM   
Rezagh


 

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Status: offline 		Hi raimondi,

We have no experience with the longevity of the structure (aileron/hinge/flutter) from using one servo. An 8711 would probably be adequate but the aileron being long with generous surface may see extra torsion and flexing resulting in stressing the hinges along the unsupported section. If you decide to this on your own, I would suggest that you use a 1" to (1.25" Max ) servo arm and increase the number of hinges to tip and outboard part by at least 2.

We can not warranty any failure due to using one servo per wing although this may not turn to be a problem for most fliers but then again some will have problems with using one servo per wing.

Thank you,
Reza
quote:

ORIGINAL: raimondi

Helo guys, I am planing on using single servos on the wings ( JR 8711)is anyone planing this to????? Will apresiate sugestions!!




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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 8/24/2008 8:26 PM   
raimondi


 

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Status: offline 		Thanks Rezagh will take your advises in count!!!!!!!!!!!!

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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 10/8/2008 3:59 AM   
Born2Fly


 

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Status: offline 		Nice thread and beautiful video. THANK YOU. I think I want one (if I can figure out where to put it, lol, to many planes right now)

< Message edited by Born2Fly -- 10/8/2008 4:00 AM >

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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 10/26/2008 3:11 PM   
geoflys


 

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Status: offline 		Does anyone have any photos of your powerbox placement..... any photos of your entire cockpit layout it would be most appreciated.....
By the way ,what do you think of 1221 rx vs 9100??
also curious about matchbox placement

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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 10/26/2008 4:20 PM   
Rezagh


 

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Status: offline 		Place the matchbox in the wings. Powerbox on the floor of the fuse. Glue two strips of liteply 1/4" going from left to right and mount the powerbox. This is one way, just wanted to give you a hint.

If you are using PB then you won't need AR9100 so go with a regular receiver unit such as 1221 or AR9000 or R921.

Hope this helps,
Reza
quote:

ORIGINAL: geoflys

Does anyone have any photos of your powerbox placement..... any photos of your entire cockpit layout it would be most appreciated.....
By the way ,what do you think of 1221 rx vs 9100??
also curious about matchbox placement




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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 10/26/2008 5:07 PM   
geoflys


 

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Status: offline 		Reza..Although I have a powerbox...Im not sure if I want to use it....Wouldnt it be better to just run a123 into the 9100..and be done with it?
in that case...what voltage do the servos recieve??...
My aprehensions with the powerbox setup are 1) doesnt the powerbox 40/16 regulate servos to just 5.9v?(I believe you like ti run your 8711,s
at 7v?!)
2)the jr connectors going from pb to rx have limits
3) the weight of pb vs 9100...
does the 9100 regulate output voltage??



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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 10/26/2008 5:49 PM   
Rezagh


 

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Status: offline 		Weight is not much different when you add the matchboxes but the AR9100 and two A123 is a very good set up as well. I am enjoying mine so far.
As for servos the difference of 5.9 and 6.5(A123) is not significant, although the difference of 5.9 and 7v on the PB royal and same servos 8711 was very evident on my 40%. I love the performance of the servos on A123 as well. Go for it

BTW, AR9100 does not regulate the voltage! Whatever goes into it that's what servos will see.

< Message edited by Rezagh -- 10/26/2008 5:50 PM >


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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 10/28/2008 5:47 AM   
geoflys


 

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Status: offline 		Reza..I AM leaning towards the 9100/a123 setup..(2 2300's)....you only use the SOFT switch?(doesnt it still draw power even when off?).... my apprehension with the 123's is not being able to check them....I was thinking that a fromeco Kodiak switch ( mah's spent digital readout) would be usefull..also it has a deans input for charging.. or perhaps just using the soft switch ...with the fromeco mah counter(weasel) to keep track (Im wary of that soft switch)....
So how do you determine the state of your batteries?...lets say youve done 4 or 5 flights...how do you determine if its safe to fly....?? do you charge in the plane or swap out fresh batteries?....do you use a balancer with the pocketlader?...which one?
Sorry to bug you about this....Ive recently lost a plane to 2.4 brownout issues and am trying to be sure my next setup is a bombproof as possible!
you wouldnt happen to know if the ec3 or deans can handle the most current?

Thanks, Geo

....



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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 10/28/2008 6:03 AM   
geoflys


 

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Status: offline 		Oh, I am using all 8711's....Im a little dissapointed that QQAC didnt mention the new high voltage servos as an option.!!..hmmmmm...

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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 10/28/2008 3:36 PM   
Rezagh


 

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Status: offline 		It is not available yet so it can not be an option!
quote:

ORIGINAL: geoflys

Oh, I am using all 8711's....Im a little dissapointed that QQAC didnt mention the new high voltage servos as an option.!!..hmmmmm...




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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 10/28/2008 3:41 PM   
Rezagh


 

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Status: offline 		Geo,

There is no need for Fromeco switch but you are more than welcome to set up your plane how ever you want it.

It's very simple with 2 2300, Charge them fully, get 4 flights and use your pocket ladder to fast charge them, read the mah that is put in to your batteries, that gives you an idea of how much you are spending per flight. typically with two 2300, you can get 6 hard flights before you will need to recharge. No balancer needed, Duralite has a balancing circuit in the batteries. EC3 and Dean can handle the current more than you can imagine. I pull about 60 amp through Dean on my electric 69"! These connectors are bullet proof for this application.

Let me know if you have any other questions.
Reza
quote:

ORIGINAL: geoflys

Reza..I AM leaning towards the 9100/a123 setup..(2 2300's)....you only use the SOFT switch?(doesnt it still draw power even when off?).... my apprehension with the 123's is not being able to check them....I was thinking that a fromeco Kodiak switch ( mah's spent digital readout) would be usefull..also it has a deans input for charging.. or perhaps just using the soft switch ...with the fromeco mah counter(weasel) to keep track (Im wary of that soft switch)....
So how do you determine the state of your batteries?...lets say youve done 4 or 5 flights...how do you determine if its safe to fly....?? do you charge in the plane or swap out fresh batteries?....do you use a balancer with the pocketlader?...which one?
Sorry to bug you about this....Ive recently lost a plane to 2.4 brownout issues and am trying to be sure my next setup is a bombproof as possible!
you wouldnt happen to know if the ec3 or deans can handle the most current?

Thanks, Geo

....






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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 10/28/2008 4:48 PM   
yarom



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I have just lost yesterday a H9 Sukhoi with exactly that setup.

Lost complete radio control mid flight and for some reason, one of the elevators deflected upwards - slow roll and into the ground.

The length of the non-controlled flight suggests it was something longer and more serious than just a reboot, as this receiver supports quick-connect.

Once on the ground and fairly crashed, all radio systems and surfaces were fully functional.

This crash occured with a new 9303 DSM2, new AR9100, new battery packs, etc.

The absolutely amazing aspect is that the engine did not cutoff, which means the Smartfly module did not get from the receiver an indication that radio link and control were lost. We tested it on the gound by turning the radio off and it worked (light went off), so I have no idea what has just happended.

I have to talk to Horizon today and see what position I will take on the issue. We have had quite a few DSM crashes at our field lately...





quote:

ORIGINAL: geoflys

Reza..I AM leaning towards the 9100/a123 setup..(2 2300's)....you only use the SOFT switch?(doesnt it still draw power even when off?).... my apprehension with the 123's is not being able to check them....I was thinking that a fromeco Kodiak switch ( mah's spent digital readout) would be usefull..also it has a deans input for charging.. or perhaps just using the soft switch ...with the fromeco mah counter(weasel) to keep track (Im wary of that soft switch)....
So how do you determine the state of your batteries?...lets say youve done 4 or 5 flights...how do you determine if its safe to fly....?? do you charge in the plane or swap out fresh batteries?....do you use a balancer with the pocketlader?...which one?
Sorry to bug you about this....Ive recently lost a plane to 2.4 brownout issues and am trying to be sure my next setup is a bombproof as possible!
you wouldnt happen to know if the ec3 or deans can handle the most current?

Thanks, Geo

....





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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 10/28/2008 5:21 PM   
geoflys


 

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Status: offline 		sorry to hear you lost a plane.....what was your exact set up....type of batteries/regulators?..smartfly..?how many remote antennas?..was the plane far out when loss occured?...what was post flight voltage...?..did you have heavy gauge wires with deans ...did you range test with a data logger?...were your remote antennas on 3 axis's??...full charge on TX?/
I have a 9303 and 12x..... with 9100 ,2 fromeco liion into arizona regs....16 gauge with deans... on my 50 cc EF extra 300....25 flights no glitches.....and also have a 50cc 86 in QQ yak...jr 921(2.4)....with at least 100 flights no glitches at all...AND a EF 58 extrra electric,921 with at least 100 flights and no issues whatsover with 2.4..............I did have lockout on futaba 7ex..and lost 2 planes....made the switch to JR/spek in may, and have had a glich free flying season...
Geo
the only thing that comes to mind is why do you have a smartfly between batts an rx?.....9100 can deal with high voltage...and battery mgmt.



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RE: Build Thread: New QQ-Yak 54 101", DA-85 - 10/28/2008 8:04 PM   
yarom



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This was the fifth trimming flight on the plane and the second that day. The plane was flying at approx. 200ft and level. The plane started a roll to the left and went into the ground with the engine running. At the time this was happening, the pilot commented he seemed to have lost complete control and showed me he was moving the sticks with no reaction from the plane. One of the elevator channels (left) looked like it was fully deflected upwards.
On the ground, we tested all, the controls and surfaces and everything was working as intended. We could not find anything to indicate a malfunction. Battery testing showed them fully charged (one was 6.71v and the other one 6.68).


Setup of the plane –
Tx – JR 9303 DSM2
Rx – Spektrum AR9100 connected to soft switch (red lead cut per bulletin)
3 remote antennas
2 A123 2300 mah batteries (new) heavy gauge wire and EC3 connectors, no regulators, no switches
6 servos - 5 Hitec 5955 and 1 JR 8711
1 Smartfly optical ignition cutoff on gear channel
1 A123 2300 mah on separate ignition circuit with switch

Questions –
• How come the failsafe did not kick in and idled the engine with surfaces neutral?
• How come the ignition cutoff did not kill the engine? Was there any radio link loss?
• Is this equipment safe to fly?

Since we have had quite a few JR DSM crashes at our field lately, I am considering putting this equipment on hold and looking for an alternative. I have several transmitters and receivers of that type and feel uncomfortable putting any more giant scale planes in jeopardy...

I've packed the entire system and sent it to JR today after talking to them. The JR tech said that he tought, based on the description, that the plane lost power on board (hence no failsafe and/or no engine cutoff). Sounds far fetched to me on redundant A123 packs... Also, if Rx loses power, the Smartfly would kill the ignition...

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