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Top RC Zero from Gator R/C

Old 09-16-2016, 05:56 PM
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Hi guys, did we ever get to the bottom of the cowl size issue? I would like to do one of these models with an fg84.
Old 09-16-2016, 06:40 PM
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Originally Posted by Craig B.
Hi guys, did we ever get to the bottom of the cowl size issue? I would like to do one of these models with an fg84.
Yes. TopRC made two versions of the cowl. The larger one is perfect for the FG84. Mike, our US supplier, was kind enough to get me the bigger one. Ask your Australian provider for the LARGER cowl.

jim
Old 10-11-2016, 05:19 PM
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Well, after applying 40,000 rivets , a new paint job and a bunch of detailing, my TopRC Zero is almost ready for maiden. This photo was taken at the Scale Masters this past weekend in California. We were flying another one of my planes and did a static display of the Zero for fun. The reaction was super positive and made the countless hours of detailing worth it.
Hope to have more pictures soon.

jim
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Old 11-14-2016, 06:51 AM
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Guys,

I just started to unpack my Zero and noticed that the left split flap is warped. Is there a way to fix this? Thanks.
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Old 11-15-2016, 05:34 PM
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Originally Posted by liemtran75
Guys,

I just started to unpack my Zero and noticed that the left split flap is warped. Is there a way to fix this? Thanks.
It seems the pinned hinge slot not opened in line, you just need to enlarge the slot on left side of your hand to a lower position until the flap can fit well.After that you need to use epoxy stuff the upper side of the enlarged slot. It will work after dry up. Hope that help.
Old 11-16-2016, 04:17 PM
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Originally Posted by jimkron

Well, after applying 40,000 rivets , a new paint job and a bunch of detailing, my TopRC Zero is almost ready for maiden. This photo was taken at the Scale Masters this past weekend in California. We were flying another one of my planes and did a static display of the Zero for fun. The reaction was super positive and made the countless hours of detailing worth it.
Hope to have more pictures soon.

jim
Job WELL done ! Looks great
Old 12-02-2016, 04:32 AM
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Did you maiden it Jim??

Last edited by Kh@n; 12-02-2016 at 04:34 AM.
Old 12-02-2016, 06:09 AM
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Originally Posted by Kh@n
Did you maiden it Jim??
Yes, maiden went well. Zero flew beautifully. Sound of the Saito FG 84 and new color scheme made for 3 fabulous flight. BUT...we had a deadstick on flight #4 during a loop. Plane came up short of runway. Landing gear was torn out. Prop broke. I'm fixing now and hope to fly again in a couple of weekends.
Old 12-02-2016, 07:56 AM
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Wauw ups'n'downs, but great to hear that overall it sounds like a really wellflying plane. Sure looks awsome, and love your scheme. Im getting really close on getting one of these together with the Saito in the beginning of '17. Happy fixing, and I dont mind more pics if you get the time for that.
Old 12-05-2016, 05:25 AM
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Originally Posted by jimkron

Well, after applying 40,000 rivets , a new paint job and a bunch of detailing, my TopRC Zero is almost ready for maiden. This photo was taken at the Scale Masters this past weekend in California. We were flying another one of my planes and did a static display of the Zero for fun. The reaction was super positive and made the countless hours of detailing worth it.
Hope to have more pictures soon.

jim

Fantastic looking Zero.
Old 12-19-2016, 02:31 AM
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Hi guys,

Well I finally finished my Zero fitted out with a Saito R60 however to my horror, to balance at 145mm from LE at root it requires 3.6kg in lead to the engine box

This will make the all up ready to fly weight around 15.5kg.

Any thoughts or suggestions would be appreciated.





Cheers Glenn
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Old 12-19-2016, 06:11 AM
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GlennO, I don't understand how it could take that much lead to balance? Others on this thread got a balance with about 8.5 lbs of Engine/lead combined. In my case I added 3lbs to a 5.5 lb engine. Total weight was about 29lbs, yours seems 5lbs heavy.

As shown earlier in this thread, I detailed mine out including a pilot and added cockpit details. I mounted the batteries as far forward as possible. Did you do something that added tail weight?

The plane will fly fine at 34 lbs, but I don't know why yours is so heavy?
Old 12-19-2016, 06:38 AM
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Originally Posted by liemtran75
Guys,

I just started to unpack my Zero and noticed that the left split flap is warped. Is there a way to fix this? Thanks.
My inner gear doors had big warps. I was able to carefully heat them up with my heat gun and then bend into position...and hold until cooled. Might work on flaps.

best
jim
Old 12-27-2016, 08:20 AM
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Hi Glenn,

would you mind measuring your cowl diameter for me? I am thinking the fg84 would solve your problems.

Thanks in advance.
Old 12-27-2016, 04:57 PM
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Ok,

here's what I've done.

I had a mounting plate made that bolts between the stand offs and the rear mount which is of steel and weighs about 220g.
New stand off from steel also added around 200g plus i added around 800g of lead. All the additional weight is located in front of the engine box and the lead is directly between the cylinder heads. The result is now the model balances at 170mm (25mm behind suggested CG point and the total weight of model is 13kg (28LBS) which is a good result.
I have not flown it yet as the weather has not been suitable but I will fly ASAP as I'm keen to see the difference now.

Hot Rodd Todd, to answer your question, nothing was done differently at the tail apart from using standard elevator servos - not mini's.
I just feel that the 60cc Saito R3 is a bit light for this model, the 80 if it fits in the cowl would be better.




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Old 12-28-2016, 07:37 AM
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Originally Posted by GlennO
Ok,

here's what I've done.

I had a mounting plate made that bolts between the stand offs and the rear mount which is of steel and weighs about 220g.
New stand off from steel also added around 200g plus i added around 800g of lead. All the additional weight is located in front of the engine box and the lead is directly between the cylinder heads. The result is now the model balances at 170mm (25mm behind suggested CG point and the total weight of model is 13kg (28LBS) which is a good result.
I have not flown it yet as the weather has not been suitable but I will fly ASAP as I'm keen to see the difference now.

Hot Rodd Todd, to answer your question, nothing was done differently at the tail apart from using standard elevator servos - not mini's.
I just feel that the 60cc Saito R3 is a bit light for this model, the 80 if it fits in the cowl would be better.




Hmmm...almost an inch back from suggested cg. Could be tail heavy at slow speed. What do others think?
Old 12-28-2016, 02:34 PM
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Jim,

I flew it at 245mm and it showed no signs of stalling what so ever.

I'm sure it'll fly fine at 170mm, if not I'll add more lead.

cheers GlennO

Originally Posted by jimkron
Hmmm...almost an inch back from suggested cg. Could be tail heavy at slow speed. What do others think?
Old 01-07-2017, 11:28 AM
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Originally Posted by jimkron

Well, after applying 40,000 rivets , a new paint job and a bunch of detailing, my TopRC Zero is almost ready for maiden. This photo was taken at the Scale Masters this past weekend in California. We were flying another one of my planes and did a static display of the Zero for fun. The reaction was super positive and made the countless hours of detailing worth it.
Hope to have more pictures soon.

jim
Jim do you have a build thread on you Zero? I would love to see your modifications.
Old 01-07-2017, 06:39 PM
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Darrell at Sierra is veeeeeery close to having gear for this beauty
Old 01-07-2017, 06:42 PM
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Nice work jimkron
Old 01-19-2017, 01:47 AM
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Default zero toprc failures

I am very disapointed because if there are crack or paint failure they have not correct after sales.I have bought on one year 1 mustang and 2 zero toprc with retract(i am not a bad customer !!).On one zero the wings and the elevator have cracks and paint failures.I have sent pictures to bigplanes.BIGPLANES TRY TO HELP ME It is not my responsabilities if there are failures on the plane.
I think that toprc would changed the wings under garantie as other factory( i have an exemple with carf on a eurosport : they have changed one wing without discussion).
I am happy with quality but not with after sales.Now i'm waiting if toprc contact me.I would buy their jet but now i am "refresh" !

Daniel
Old 02-02-2017, 07:18 PM
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I´m interested in this Zero and want to power it with the new Saito 90r3, which is the same size as the 84. Reading through the thread, it´ll need the bigger cowl. So the questiion is, the cowl in mention is supplied in the kit or do I have to order it as additional? Also, Jim refers to Mike as the USA supplier, is it Gator rc? Thanks in advance!
Alex
Old 02-02-2017, 07:40 PM
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Originally Posted by AKA2
I´m interested in this Zero and want to power it with the new Saito 90r3, which is the same size as the 84. Reading through the thread, it´ll need the bigger cowl. So the questiion is, the cowl in mention is supplied in the kit or do I have to order it as additional? Also, Jim refers to Mike as the USA supplier, is it Gator rc? Thanks in advance!
Alex
Yes Mie at Gatorrc is th US supplier. Give him a call and let him know hat yo would like the bigger cowl.
Old 02-13-2017, 03:43 AM
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Hi all, Have anyone with the Saito fg 84/90, fittet it with the nice Keleo exhaust ring?? If so, does it need modification for the ring to be installed, or is it straight forward around the enginebox?
Old 02-13-2017, 04:50 PM
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I've been trolling this thread for a couple of weeks reading all the posts with great interest.
pulled the trigger waiting for the thing to show up. Threw caution to the wind gonna power it with the saito FG 90 just love the sound on the YouTube videos. Think I'm already driving Mike a Gator crazy with cowl worries. He told me to relaxe and assured me that this batch has the larger cowl. Once the thing sows up I'll post some more thoughts/questions

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