Top Flite Giant Corsair ARF Disappeared.
09-21-2016, 08:30 AM
#826
Join Date: Jan 2013
Location: Berlin, GERMANY
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I need a little help with robart e-retracts. One of them stopped retracting fully. After a little tinkering actuator got completely disconnected from the cam follower. I tried to tighten/unscrew the set screw on cam follower but I could not get it to move so I ended up stripping it. Q1: How do I remove this thing, I tried very hard also with oversized hex wrench and torx bit also but no joy. Q2: Assuming I got it out and replaced the set screw, how tight should I have it. It looks like the if I tighten it a lot, it would damage the actuator cam threads, it seems. Am I overlooking something?
10-01-2016, 09:00 AM
#830
My Feedback: (2)
What are you guys who have the Saito FG60 doing for cooling?
I have a Keleo exaust and the Stock cow.. I've modified the cowl mount such that I can put the cowl on with out any real issues. To accomplish this I mounted the supplied cowl mount where it's shown on the plans. Then I added Three semi circles of ply to the cowl. These pieces of ply are attached to the Kit supplied cowl mount with Magnets. Three small wooden dowels also index through both parts to inhibit any rotation.
Now I'm wondering how much of the cowl do I need to butch..
I have a Keleo exaust and the Stock cow.. I've modified the cowl mount such that I can put the cowl on with out any real issues. To accomplish this I mounted the supplied cowl mount where it's shown on the plans. Then I added Three semi circles of ply to the cowl. These pieces of ply are attached to the Kit supplied cowl mount with Magnets. Three small wooden dowels also index through both parts to inhibit any rotation.
Now I'm wondering how much of the cowl do I need to butch..
10-02-2016, 12:05 PM
#831
Im running the bigger 84 with no additional cooling or baffling and its temping just fine. Just make sure the gap between the cowl and the fuse is good so the hot air can exit. The trailing edge of the cowl should be even with the face of the fuse or "tangent" to radius of the bullnose rounded front end. That will provide enough of a gap with zero modifications.
10-02-2016, 01:44 PM
#833
Ok so take temps after landing and shut off and the temps should be about 180F at the head. The engine will get hotter as it sits for a few minutes but then it will cool off. You want to know what the peak heatsoak temp is too. If you have telemetry it would be good to add it to the top cylinder and get some info in flight. As long as it's running smoothly with a little gray smoke and good temps it will be fine.
10-08-2016, 12:42 PM
#835
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Join Date: Oct 2002
Location: Utica,
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Okay, so here is the deal.
I picked up one of these from a club member who I think got intimidated by the model. He had it somewhat "professionally" built, and recovered the whole thing in chrome monokote. SO! It looks quite odd, I am going to put the factory markings / decals on it and just fly the banana's out of it, despite it not really looking like a corsair, looking more like a giant silver plane with a funny wing.
Setup is all futaba hi-torque servos, unsure if they are digital. A spectrum RX. Brand new never fired DLE 61. Robart Electric retracts including tailwheel. I really got a screaming deal on the plane, I could probably sell of the electronics, retracts, and engine and make a little money on what I spent on it.
Here are my concerns / mods that I will make before I fly the beast.
Elevator Is extremely sloppy. Review of the forum shows that the rudder and elevator have a lot of slop to them across the board, unless modification is done. I am not messing with redoing torque rods and uncovering recovering stuff, so I am going to mount the servos in the tail, even though this may affect balance, I just want some thoughts on this. Is this like a definite no no? I am not concerned with the servos sticking out of the back of the plane as it is already covered chrome and looks weird anyways. I'd rather have nice tight control surfaces and have it fly right than have it looks scale and flutter to its demise.
Other than that everything seems basically OK. Had to send one of the retracts back to robart as it just randomly stopped working, even though the plane never even flew. They repaired at no cost.
And I am having a hell of a time figuring out the gear door servo, its this little tiny servo with an elaborate bellcrank setup, unfortunately the guy who built it moved about 3500 miles away, so its not like I can have him over for a beer to show me how to sort it out, I find myself trying to think like him and that's tripping me out even more.
Pics to come. Any thoughts or suggestions appreciated.
I picked up one of these from a club member who I think got intimidated by the model. He had it somewhat "professionally" built, and recovered the whole thing in chrome monokote. SO! It looks quite odd, I am going to put the factory markings / decals on it and just fly the banana's out of it, despite it not really looking like a corsair, looking more like a giant silver plane with a funny wing.
Setup is all futaba hi-torque servos, unsure if they are digital. A spectrum RX. Brand new never fired DLE 61. Robart Electric retracts including tailwheel. I really got a screaming deal on the plane, I could probably sell of the electronics, retracts, and engine and make a little money on what I spent on it.
Here are my concerns / mods that I will make before I fly the beast.
Elevator Is extremely sloppy. Review of the forum shows that the rudder and elevator have a lot of slop to them across the board, unless modification is done. I am not messing with redoing torque rods and uncovering recovering stuff, so I am going to mount the servos in the tail, even though this may affect balance, I just want some thoughts on this. Is this like a definite no no? I am not concerned with the servos sticking out of the back of the plane as it is already covered chrome and looks weird anyways. I'd rather have nice tight control surfaces and have it fly right than have it looks scale and flutter to its demise.
Other than that everything seems basically OK. Had to send one of the retracts back to robart as it just randomly stopped working, even though the plane never even flew. They repaired at no cost.
And I am having a hell of a time figuring out the gear door servo, its this little tiny servo with an elaborate bellcrank setup, unfortunately the guy who built it moved about 3500 miles away, so its not like I can have him over for a beer to show me how to sort it out, I find myself trying to think like him and that's tripping me out even more.
Pics to come. Any thoughts or suggestions appreciated.
10-08-2016, 10:27 PM
#836
My first one had the 55RA and I had to add about 4lbs of lead to the nose to balance. The 61 is not much heavier so I can imagine if you move servos to the rear, 3D plane style, your going to need a bit more nose weight.
I'm currently flying my second Corsair with a heavy FG 84 and I added a little bit of weight in the tail cone.
The plane can take a lot of weight, it has a big wing and lots of area. The lighter one floated on flaps much more than the heavier one I'm flying now.
Its kind of a P-Cat in general if you're on top of it but it can be fast too. I wouldn't worry too much about the weight and I like or even prefer the heavier plane. Don't get psyched out by this plane, it can be intimidating at first but after a few flights you will understand it.
Also be careful when using full flaps as they can blank out the tail effectiveness as it rolls out after landing. You might find it veering to one side with full opposite input and have no control. Raise the flaps as soon as you can after touching down to maximize steering control.
Check your wing bolts every flight! Check your cowl bolts every flight!
Good luck!
I'm currently flying my second Corsair with a heavy FG 84 and I added a little bit of weight in the tail cone.
The plane can take a lot of weight, it has a big wing and lots of area. The lighter one floated on flaps much more than the heavier one I'm flying now.
Its kind of a P-Cat in general if you're on top of it but it can be fast too. I wouldn't worry too much about the weight and I like or even prefer the heavier plane. Don't get psyched out by this plane, it can be intimidating at first but after a few flights you will understand it.
Also be careful when using full flaps as they can blank out the tail effectiveness as it rolls out after landing. You might find it veering to one side with full opposite input and have no control. Raise the flaps as soon as you can after touching down to maximize steering control.
Check your wing bolts every flight! Check your cowl bolts every flight!
Good luck!
Last edited by Chris Nicastro; 10-08-2016 at 10:29 PM.
10-08-2016, 11:55 PM
#837
My Feedback: (37)
I recently picked up a used Corsair with a DLE 55. Test flew it and thought it was a bit tail heavy, added another 1 pound made it fly perfectly. The rudder was not anywhere near solid, so I ended up putting an MKS 6125 wing servo in the vertical fin and put a horn on the rudder. This made the rudder so much better, instead of adding additional weight to compensate for the tail servo, I placed all 3 batteries on a platform just above the motor.
I have never flown a Corsair before, on my third flight, I cut the throttle too early on landing and of course it did the typical Corsair bounced landing... Looks like I will be driver her in from now on!
I feel that the DLE 55 is just fine for this plane, anything larger and more powerful, you should consider upgrading the control linkages.
I have never flown a Corsair before, on my third flight, I cut the throttle too early on landing and of course it did the typical Corsair bounced landing... Looks like I will be driver her in from now on!
I feel that the DLE 55 is just fine for this plane, anything larger and more powerful, you should consider upgrading the control linkages.
Last edited by fw190; 10-09-2016 at 12:02 AM.
10-17-2016, 10:49 AM
#839
SWORDSN,
Good to hear such a positive report! Given the experience you have had with the plane, I wanted to ask you if you made any changes to the elevator and/or rudder linkages? Also, have you had to reinforce any areas or made any modifications during your 250 flights? Also, what prop do you use on your 55RA?
Good to hear such a positive report! Given the experience you have had with the plane, I wanted to ask you if you made any changes to the elevator and/or rudder linkages? Also, have you had to reinforce any areas or made any modifications during your 250 flights? Also, what prop do you use on your 55RA?
10-22-2016, 06:03 AM
#841
My Feedback: (13)
SWORDSN,
Good to hear such a positive report! Given the experience you have had with the plane, I wanted to ask you if you made any changes to the elevator and/or rudder linkages? Also, have you had to reinforce any areas or made any modifications during your 250 flights? Also, what prop do you use on your 55RA?
Good to hear such a positive report! Given the experience you have had with the plane, I wanted to ask you if you made any changes to the elevator and/or rudder linkages? Also, have you had to reinforce any areas or made any modifications during your 250 flights? Also, what prop do you use on your 55RA?
10-25-2016, 03:44 PM
#844
It will like the Xoar 22x10 just the same. I had that engine in a TF P-51 with the Xoar prop and it just likes that prop. The 12 pitch is a bit much on landing a clean plane the Mustang but it might be ok on a Corsair. Still, the 10 pitch is great for both engines SE or RA.
10-26-2016, 04:36 AM
#845
My Feedback: (13)
It will like the Xoar 22x10 just the same. I had that engine in a TF P-51 with the Xoar prop and it just likes that prop. The 12 pitch is a bit much on landing a clean plane the Mustang but it might be ok on a Corsair. Still, the 10 pitch is great for both engines SE or RA.
10-28-2016, 06:35 AM
#846
Another question for those who have been flying this Corsair for a while: Have the outer wing panels ever shown any tendency to come loose in flight? I have no experience with blade-type wing spars and would like any input you might have.
Thanks in advance.
Thanks in advance.