RE: has anyone flown the new 50cc size black horse corsair

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All Forums >> RC Airplanes >> ARF or RTF >> RE: has anyone flown the new 50cc size black horse corsair

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RE: has anyone flown the new 50cc size black horse corsair - 7/20/2012 11:53 AM

Maxam

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Roger.How about those white plastic things they put in shirt collars. I think they are the same width and they are tough. -Tom

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RE: has anyone flown the new 50cc size black horse corsair - 7/20/2012 4:16 PM

Lifer

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Collar stays. Check your dry cleaner for some.

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RE: has anyone flown the new 50cc size black horse corsair - 7/20/2012 11:26 PM

Heli-NuBee

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I purchased some plastic sheet from the Hobby store today. The original actuator arm is approx. 0.040 thick. The plastic from the hobby store seems a bit weaker so I bought both 0.040 and 0.060 stock. The 0.060 stock seems to flex about the same as the old original arm. I will play with both and see which will do the job best. I also made a bit more progress today. I installed and connected the throttle servo, fuel tank and fuel lines. I probably went a bit overboard on my tank because I installed one with 32 ounce capacity. I also installed the radio switch, the Micorsens balancer and pinned the hinges on the empanage.

Roger

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RE: has anyone flown the new 50cc size black horse corsair - 7/21/2012 8:14 PM

Heli-NuBee

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I make a little more progress today. The flap actuator arm is now repaired and operational. I installed a fuel dot for fueling, installed pins in the wing hinges and adjusted all of the control throws. I had something a little odd happen though. Some of the valve push rods seemed quite loose, in fact so loose that one of them fell out of the engine along with its cam follower. This made sure that I had to check the valve clearance settings. I found a number of the valves were way too loose. Yes, I checked the valves four times at every two revolutions. Checking and setting the valves took a couple of hours but it was not as difficult as I though it would be. I also checked the glow plugs while they were out of the engine to make sure they all lit up. I gotta tell ya, this is getting scary - I just may have to finish this dude one of these days and get it into the air. hahaha

Roger

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RE: has anyone flown the new 50cc size black horse corsair - 7/22/2012 1:17 AM

Maxam

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Roger, Do not sweat the push rods. You otta check out how easy it is to dislodge the push rods on the little 7-35 and yet they will not fall out when running. -Tom

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RE: has anyone flown the new 50cc size black horse corsair - 7/23/2012 10:19 PM

Heli-NuBee

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Hey Tom,

Did you have to add weight to the tail to get your BH Corsair to balance with the UMS Evolution 7-77 radial engine?

Thanks,

Roger

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RE: has anyone flown the new 50cc size black horse corsair - 7/23/2012 11:28 PM

Maxam

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Not one bit. All batteries are in the center of the fuselage. -Tom

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RE: has anyone flown the new 50cc size black horse corsair - 7/25/2012 2:46 AM

Heli-NuBee

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Thanks for the response Tom, I was just verifying that I had the CG right. I couldn't believe with that big fat Ma Ma of a radial engine up front that the CG came in perfect without adding weight to either end. Thanks for your input. I finished installing the Microsens on board glow system and the radio gear today. I also installed an Arm Safe device so I can keep the on board glow LiPo battery disconnected until just before flight. I think I am down to installing the decals now. Getting very close.

Thanks again,

Roger

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RE: has anyone flown the new 50cc size black horse corsair - 7/30/2012 9:23 PM

panioul

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Hello Roger, from Greece. I am very interested in this plane and I follow this thread from the beggining. I recently found this plane in a very nice price and I think I will take it! Please can you tell me the struts' length that you ordered from LADO?

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RE: has anyone flown the new 50cc size black horse corsair - 7/30/2012 11:08 PM

Heli-NuBee

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Hi panioul, the Lado strut length is 150 mm. I also changed the wheel size to Robart 3-3/4" scale wheels. I completed my corsair today. My next posts will probably be of the engine break in runs.

Roger

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RE: has anyone flown the new 50cc size black horse corsair - 8/7/2012 3:12 AM

Heli-NuBee

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Had all kinds of fun today trying to start the engine for the first time with no luck - I also discovered that the retracts springs are too weak and it will be necessary to install stronger ones. Also the Lado retracts are not working all of the time - sometimes they work and sometimes they don't. I seem to be having my share of challenges with this plane and engine combo where my other radial powered plane and engine are outstanding. It would be easy to get a bit discouraged but I will just have to keep at this one until everything is right.

Roger

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RE: has anyone flown the new 50cc size black horse corsair - 8/13/2012 11:22 PM

Heli-NuBee

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I had a little better luck starting my UMS Evolution 7-77 radial engine today. I followed Tom's suggestion of five blades of choke with the needle valve open two turns. The engine grumbled on the first flip. I continued hand flipping for the next five minutes but no luck. I then put the electric starter to work and she easily roared to life. I notice that there is a huge differance when the glow system is engaged. The engine tends to loose a cylinder at low speed and the microsens system is a bit slow to reset. I ran the first 1/2 gallon of fuel through the engine on several runs. The engine is getting stronger but will need a lot more break in running and low speed jet adjustment. I could not get any after run oil at the local hobby shop so I had to settle for air tool oil to flush the engine after the break in runs. Here are a few pictures of the plane and engine:

Roger

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RE: has anyone flown the new 50cc size black horse corsair - 8/14/2012 8:31 AM

vasek

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Roger, I see you got the wing decals right

Very nice engine install, but I would swap the "big headed" pilot for a better one. Good luck with the maiden. V.

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RE: has anyone flown the new 50cc size black horse corsair - 8/18/2012 6:46 PM

altidsulten

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Attention!

I went flying today with my Corsair. During a low-pass i noticed that it dutch-rolled a little more that usual, but everything else was fine. So i thourght.
During the next low-pass (this Corsair is SO good at it!

) the vertical stabilizer started to flutter!! Not the rudder, but the stab.

Holy ####, now i am going to loose it, i thourght. Quick dessision, throttle back (flutter stopped), gear and flaps out, then a gentle 90 degree turn to head in to a cross-wind landing.
It was allmost perfect, untill the last part. The part where the ground is going to play a role

.
Well i turned over, broke the prop, did a little damage to one of the gearmounts (in the wing, not the LADO) and broke the balancing tap of the rudder.

After a closer inspection i found the the fin is only glued on the the "fin-base" with a 2mm lite-ply frame but-joint, a 3mm lite-ply short tap in the front and the balsaskin.

Now this is a 10kg/20Lb aircraft with a tendency to dutch-roll........

When i landed the fin was only hold in place with the Monocote and the rudderhinges.

I have installed a 4mm carbontube through the fuselage, attached 3 point to a frame, up through the fin where it is glued to the three lower ribs with epoxy and micro baloons. the skin/fin joint i have reinforced with 3/4 Oz fiberglass both on the inside and on the outside, waiting for it to dry now.
With this simple modification i am sure it will hold.
Can't wait to see if it will also have an effect on the dutch rolling? If the fin has been oscilation all the time?

It is just such a nice handling aircraft, and i think that the fact that i was able to "land" it with the vertical stab. wobling tells a lot about it.

Thomas Pedersen

< Message edited by altidsulten -- 8/19/2012 7:35 AM >

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RE: has anyone flown the new 50cc size black horse corsair - 8/18/2012 10:38 PM

vasek

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Hey Thomas, good save! could you post a picture or two of the problem/ repair? thanks V.

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RE: has anyone flown the new 50cc size black horse corsair - 8/20/2012 9:17 PM

Heli-NuBee

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Making progress with my UMS Evolution 7-77 break-in. The engine is running much stronger now and the idle has improved a great deal. Here is a video of one of the break-in engine runs http://www.youtube.com/watch?v=CR0f_QiZ2YI&feature=youtu.be The engine is close to being ready to fly but I still have some issues with the retracts. The retracts toe in when sitting on the ground and the wheels hit the strut cover. The retracts seem to have quite a bit of play. I will need some stronger springs in the retracts and will also need to trim the strut cover so the wheel will not hit it.

Roger

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RE: has anyone flown the new 50cc size black horse corsair - 8/20/2012 9:18 PM

Heli-NuBee

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Making progress with my UMS Evolution 7-77 break-in. The engine is running much stronger now and the idle has improved a great deal. Here is a video of one of the break-in engine runs http://www.youtube.com/watch?v=CR0f_QiZ2YI&feature=youtu.be The engine is close to being ready to fly but I still have some issues with the retracts. The retracts toe in when sitting on the ground and the wheels hit the strut cover. The retracts seem to have quite a bit of play. I will need some stronger springs in the retracts and will also need to trim the strut cover so the wheel will not hit it.

Roger

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RE: has anyone flown the new 50cc size black horse corsair - 8/20/2012 9:53 PM

Lifer

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helinubee,

Really, really cool engine! What oil percentage does it call for during break-in, and what when it is ready?

Thanks!

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RE: has anyone flown the new 50cc size black horse corsair - 8/21/2012 3:06 AM

Heli-NuBee

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Hey Lifer,

I have just completed my first hour of break-in - see the factory recommendations below:

Fuel Selection
Evolution radial engines only require 6–7% synthetic oil after the break-in process. There is no
need to use fuel with nitro content higher than 10%. Adding additional oil to the fuel will reduce
the engine RPM. Please refer to the following chart for fuel recommendations.
Depending upon your choice of oil, you may find that the engine feels ‘dry’ at the end of a flight
when using 6–7% oil. If you want, you can use 8–9% oil with any mix of flying fuel.
Tip: Many users combine one gallon of a good quality 15% nitro fuel (with 18% oil content)
with a gallon of pure methanol to achieve a 7 1/2% nitro and 9% oil mixture.
methanol % synthectic oil % nitro %
break-in
1st hour 90% Methanol 10% Oil 0% Nitro
2 to 3 hours 92% Methanol 8% Oil 0% Nitro
flying without nitro
1st hour 93% Methanol 7% Oil 0% Nitro
2 to 3 hours 94% Methanol 6% Oil 0% Nitro
flying with nitro
1st hour 88% Methanol 7% Oil 5% Nitro
2 to 3 hours 83% Methanol 7% Oil 10% Nitro

The retract issue took a turn for the worse this afternoon. One of the Lado's quit working again after less than six operations. I sent another message to the factory. I hope they can figure out what the problem seems to be. However, the retracts seem quite loose a pivot quite a bit - they toe in a lot when one sits the plane down. I hope we can get this solved soon. I would like to hae the maiden flight within the next couple of weeks.

Best wishes and good safe flying.

Roger

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RE: has anyone flown the new 50cc size black horse corsair - 8/22/2012 2:56 AM

Heli-NuBee

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My Lado retract is on its way to France again. I hope we get it right this time, the return shipping costs are getting a little pricy.

Roger

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RE: has anyone flown the new 50cc size black horse corsair - 8/28/2012 10:32 PM

pattnut

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Finally "finished" my BH Corsair project, and got four flights on it. Flies GREAT. DLE 55 is PLENTY of power. I modified the airplane with: Robart retractable tailwheel, Dynam Bal Zirolli full cockpit kit w/"Pappy" Boyington figure, Top Flite Corsair dummy motor, LADO electric retracts (witch have performed flawlessly). The markings represent a Marine Corsair out of Okinawa, spring, 1945.

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RE: has anyone flown the new 50cc size black horse corsair - 8/28/2012 11:18 PM

Capt G

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nice pics!

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RE: has anyone flown the new 50cc size black horse corsair - 8/29/2012 12:06 AM

Hellcat716

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Awesome looking Corsair. Great job installing the detailed cockpit and pilot. Hope to see it fly a lot this fall.

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RE: has anyone flown the new 50cc size black horse corsair - 9/12/2012 4:45 AM

Heli-NuBee

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OK, I received my Lado retract back from France for the second time last Friday. I installed it in the corsair and found that it now operates opposite to the other retract. I contacted Lado and was told that I could purchase a programing card from them to reverse the retract or I could use two channels on the receiver to operate the retracts. The worst part is the retracts are still not reliable. Some times they work and some times they don't work. More often than not, they don't work. I seems to help if they are unpluged and then re plugged in. I am beginning to think that the buss on my Futaba seven channel receiver just can't handle the retract load. Lado shows a schematic on their web site on how to run a second battery for the retracts. I will try that as a last resort. I have a pretty good investment in this plane and I really need to be able to count on the retracts to operate all of the time. I chose Lado retracts because several other folks with this plane have posted positive experiences with this brand of retract. This is not the case for me, I have had nothing but trouble with the Lado's and I am getting really frustrated. I want to point out that this is not my first rodeo. I have been flying RC for many years and I have had several different brands and types or retracts including mechanical, pneumatic and electric. My E-Flite and ESM electric retracts work great with the Futaba receiver but I sure can't get the Lados to work. I will give the second battery a try but if that doesn't work the Lados will go on the scrap heap and I will have learned an expensive lesson.

Roger

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RE: has anyone flown the new 50cc size black horse corsair - 9/12/2012 12:47 PM

vasek

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MAN! those retracts sure give modelers hard times, especially the rotating type... send man to the moon BUT, well you know

for the price we have to pay we should get better stuff IMO

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