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Great Planes Reactor GP/EP 3D ARF .46-.70

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Great Planes Reactor GP/EP 3D ARF .46-.70

Old 11-20-2009, 11:01 PM
  #1451  
ro347
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

C'mon guys help me out here. Im ready to pull the trigger on this...but need to know...is this an all out 3D plane? How is it?
Old 11-20-2009, 11:03 PM
  #1452  
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70


ORIGINAL: ro347

C'mon guys help me out here. I ready to pull thr trigger on this...but need to know...is this an all out 3D plane? How is it?
I take it you haven't read the thread?
Old 11-21-2009, 11:24 AM
  #1453  
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

Hmmm...yes I have. I was looking for updated response after having some flying time with the plane. Most initial observations are fantastic. As you get to learn the plane's characteristics, those initial opinions might change.

Thank you!
Old 11-21-2009, 01:23 PM
  #1454  
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

Sorry it took so long to answer your question, GP has corected the landing gear and I don't know if they have corected the covering.
ORIGINAL: ro347

Has GP corrected the issues with the Covering and landing gear on this model?
about it being all out 3d I don't know, it will be my first 3d plane so I prob wont know even after I fly it.
Old 11-21-2009, 04:59 PM
  #1455  
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70


ORIGINAL: rc airplane nut

Sorry it took so long to answer your question, GP has corected the landing gear and I don't know if they have corected the covering.
ORIGINAL: ro347

Has GP corrected the issues with the Covering and landing gear on this model?
about it being all out 3d I don't know, it will be my first 3d plane so I prob wont know even after I fly it.
Thanks RC....good luck with it!!!
Old 11-24-2009, 06:25 AM
  #1456  
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

Just wanted to know whether or not to put a OS FS-91 on the Reactor?

Ameyam
Old 11-24-2009, 08:51 AM
  #1457  
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

Amyam

This thread has a lot of good info to help you on your decision. In this thread it was discussed that you can shoe horn a .91 in the front but you will have to add alot of weight to the tail and or move the battery to the tail. The plane is light enough to get away with it. One guy had a .91 and loved it. You have to make sure your .91 is one of the lighter ones preferably and if I remember correctly the guys in this thread stated that you want to keep the motor weight under 22 oz preferably. I think the newer saitos were in the weight limits and still had loads of power. I had a .46FX and it was nose heavy. Didn't like it. Changed over to electric and its much better!
Old 11-24-2009, 09:31 AM
  #1458  
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

Im also looking to put in my Saito.91 should I pull the trigger. The saito weighs in at 21 oz with the muffler. If I remember correctly the OS is something like 24-26 oz.

Did some addition on weight last night. I came up with an all up dry weight of 96 oz using saito 91. There is a vid on here of someone using electric doing AMAZING 3d and he was at 103oz. His just floated around. So a 1/2 lb cushion isnt bad. Im wondering if this plane presents itself as big as my showtime 50 as I want something that will really 3d and is fun, but dont want to go smaller.
Old 11-24-2009, 10:02 AM
  #1459  
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70


ORIGINAL: ro347

Im also looking to put in my Saito.91 should I pull the trigger. The saito weighs in at 21 oz with the muffler. If I remember correctly the OS is something like 24-26 oz.

Did some addition on weight last night. I came up with an all up dry weight of 96 oz using saito 91. There is a vid on here of someone using electric doing AMAZING 3d and he was at 103oz. His just floated around. So a 1/2 lb cushion isnt bad. Im wondering if this plane presents itself as big as my showtime 50 as I want something that will really 3d and is fun, but dont want to go smaller.

I'm in a somewhat similar dilemma, but with the added complexity of being at ~4700'.

To those flying these things at altitude, if you could please help out, what precisely are your running motor wise, and are you happy with the performance?

I'd really like to run a Saito 82 to keep the weight down, but also at the same time want to buy the correct motor once, and do not want to be disappointed in the performance.
Old 11-24-2009, 10:44 AM
  #1460  
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

LIflyer, the .82 will pull it well; I was most happy with a 15x4w. It's not gonna throw it around like a rag doll, but should be all right. I am at 5000'; pullout wasn't ballistic, but pretty good. The Saito .91 or 1.00 might do a touch better; as mentioned, you'll need to do some mods to get the battery in the tail section. I had a 1400mah Nimh near the rear of the fuse cavity, and it was right in middle of recommended CG, so to move it back for even better 3D, battery would need to go back some more. This plane flies and lands like a feather. The long tail moment probably keeps it from the more extreme 3D stuff (i.e. tight waterfalls), but it flies very nicely. I really liked the plane.
Old 11-24-2009, 12:36 PM
  #1461  
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70


ORIGINAL: LIFlyer


ORIGINAL: ro347

Im also looking to put in my Saito.91 should I pull the trigger. The saito weighs in at 21 oz with the muffler. If I remember correctly the OS is something like 24-26 oz.

Did some addition on weight last night. I came up with an all up dry weight of 96 oz using saito 91. There is a vid on here of someone using electric doing AMAZING 3d and he was at 103oz. His just floated around. So a 1/2 lb cushion isnt bad. Im wondering if this plane presents itself as big as my showtime 50 as I want something that will really 3d and is fun, but dont want to go smaller.

I'm in a somewhat similar dilemma, but with the added complexity of being at ~4700'.

To those flying these things at altitude, if you could please help out, what precisely are your running motor wise, and are you happy with the performance?

I'd really like to run a Saito 82 to keep the weight down, but also at the same time want to buy the correct motor once, and do not want to be disappointed in the performance.
Here are the wieghts of all 3 engines, ENGINE ONLY:

Saito 82 - 16oz, Saito 91 - 19.6oz, Saito 100 - 19.5oz.

I would go for the 91....or if you feel....the 100 since its the same weight. I just dont know if the 100 would be too much and tear the plane apart.

Earlier in the thread there was mention of using Magnum 70s and OS 70s....all of which are heavier if i remember correctly....and they liked the way it flew.

Let us know what you decide.

My setup will most prob be.... I already have all except for the aileron servos

Saito 91
Hitec 5245mg on Ailerons
Hitec 5625mg on rudder or 625 mg
Hitec 5475 on elevators
Hitec 82 mg on throttle
Futabs MSA-10 servo synchronizer

Any recomendations on elevator servos that will fit the bay without cutting?
Old 11-24-2009, 01:48 PM
  #1462  
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

P.S. - you could easily offset the 3 ounce diff between the 82 and 91/100 by a combination of Carbon gear(1.5 savings) and change up some servos or lighter battery pack - maybe 2 cell lipo and regulator.

Wood prop would save you about an ounce over an APC.
Old 11-25-2009, 03:19 AM
  #1463  
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

The OSFS91 is 24.2oz. However, it is definately lighter than the 75AX being suggested. Alternatively, I could use a 55AX but I am not sure it will work well at 45Deg off from inverted. I fly at sea-level so power isint an issue. However, I have no access to the Saitos. I will be using a 14x4 or 15x4 MAS. Battery will be 6cell NiCd. Servos will probably be Futaba 3010s on all surfaces. There will be a 6004HS 2.4 Ghz RX that I am saving up for this plane with a 2.4G module on my 9CAP.

Ameya
Old 11-25-2009, 03:11 PM
  #1464  
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

i have read all the posts on this plane and have difficulty understanding all the problems associated with the Cg and weight. Mine is 6# 1oz with all standard servos and Cg at 5 3/4 inches. Using a Saito 82 and could not ask for better performance. Only thing I have had problems with is gear shearing off and it's not easily fixed due to it's location. great plane
Old 11-25-2009, 03:19 PM
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

Well you might have gotten lucky. Balancing of weight can differ from plane to plane based on the wood batch used for one part of the plane vs another at time of MFG, hardware used, placement of switches, etc. You're one of the lucky ones!
Old 11-25-2009, 07:17 PM
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

...and mine is on its way!!!
Old 11-26-2009, 11:26 AM
  #1467  
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

Pull-Pull rudder anyone? Any tips?

Would cutting for standard size servos in the wings be as simple as cutting out for the tail?
Old 11-28-2009, 03:54 PM
  #1468  
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

I don't think you'd want to do a pull pull simply for balance issues. I originally used all Hitec 225MG servos, and went to a full size Tower TS126 digital on the rudder just for a little more weight in the tail. Mind you, I didn't add any lead anywear, and was pretty much in the middle of the CG range with the Saito 82. If you want it more tail-heavy, other measures will have to be taken.
Old 11-28-2009, 05:51 PM
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

Thanks WYO - Its just been a long time since ive built a plane without pull-pull. Was just wondering if I would be able to get max throw with direct pushrod; I guess that shouldnt be a problem.
Old 11-29-2009, 09:43 AM
  #1470  
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

Pull-Pull setup:

I set up a Pull-Pull rudder system using Dubro PP horns, but with a Sullivan Kevalar lines and clevises (#521). I placed the Hitec analog coreless 985MG servo on the bottom of the fuselage kinda under fuse's widest point of the orange side stripe. The lines just run outside the fuselage and angle up to the tail horns. I did not need any lead to balance everything. My biggest concern is that servo gets oily during each flight. I wipe it as clean as possible each time.

I'm using a Saito .82, 14x4 APC, Hitec digitals 5626MG on everythng except the Rudder. Power everything with a 1800 MAH NM battery.
Old 11-30-2009, 06:14 PM
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

My vote is for the Saito 91.... Hovers at half throttle with unlimited rocket ship vertical.

Going flying tomorrow and should get some more video..

[youtube]http://www.youtube.com/watch?v=FJb6DfQNBtA[/youtube]
Old 11-30-2009, 06:31 PM
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70


ORIGINAL: zxxflyer

My vote is for the Saito 91.... Hovers at half throttle with unlimited rocket ship vertical.

Going flying tomorrow and should get some more video..

[youtube]http://www.youtube.com/watch?v=FJb6DfQNBtA[/youtube]
Sounds like you dont even have to use any throttle. What prop are you swinging? Ill have mine on Wed.
Old 11-30-2009, 06:42 PM
  #1473  
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

APC 15x4 wide in that video.


I now have an APC 14x7 pattern prop on it.
Old 11-30-2009, 06:44 PM
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70


ORIGINAL: zxxflyer

APC 15x4 wide in that video.


I now have an APC 14x7 pattern prop on it.
The 91 likes the 14x7 apc. I had it on my showtime, but now playing with 15x6, then 15x4 next.
Old 12-09-2009, 07:12 PM
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Default RE: Great Planes Reactor GP/EP 3D ARF .46-.70

Just opened up my Reactor ... WOW - prob the most efficiently packed ARF Ive seen yet. Nice looking plane. Pretty much the same size as my Showtime 50 which I like. Was afraid it would seem smaller.

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