Official Black Horse 2280mm F4U Corsair thread

[Rod Musgjerd]

Hi everyone! Going to maiden mine this weekend. Doesn’t sound like you guys are using any elevator comp on flaps, is that correct?
Thanks in advance.

[Katniss]

https://www.motionrc.com/products/black-horse-f4u-1d-corsair-2280mm-89-7-wingspan-arf-bhm1000-001

Motionrc

You might also consider the Seagull 87" Corsair
Legenghobby . com or gatorrc .com

[427jimmy]

Are these Corsairs still available in the US? Zigi seems to be out of business?
Thanks for any leads

[TwistedGrin]

Yep never a good feeling learning about Airframe failures of any kind and any kit.....I have often wondered how these Corsairs of "All" kits last with the spar ending at the bend of the wing. Perhaps a 120 with a 6inch prop and rubber isolators on the motor mounts with a cinder block on the tail would indeed work well !!

TG

[kballard72]

Wow - I have over 30flights on mine with no sign of fatigue....but I don't flogg it full blast 90degree vertical or 90degree full throttle bat turns either. Was this a gas powered engine on the failed wing bird? I still proffer the wings are up to task....as far as I know.....no other reports of wing failure in flight.

We do know that MotionRC has repair parts available....not much consolation for a totally destroyed aircraft though

TwistedGrin

We were equally surprised, it was right at the bend where the spar stops, maybe flight 10, experienced pilot.

Was coming out of a turn maybe a 45 bank into the wind.. Perhaps just the right (or wrong) amount of force in a low % failure scenario.

I am not dogging the product by any means. Halfway done with my assembly.. And true only so many Gs balsa can take.

My 120 for it came today, kidding.

[TwistedGrin]

Has anyone reinforced the wing? just watched one rip off right at the bend in a turn. I am currently building mine and considering glassing the bend from the inside.

Or open to other ideas.

Wow - I have over 30flights on mine with no sign of fatigue....but I don't flogg it full blast 90degree vertical or 90degree full throttle bat turns either. Was this a gas powered engine on the failed wing bird? I still proffer the wings are up to task....as far as I know.....no other reports of wing failure in flight.

We do know that MotionRC has repair parts available....not much consolation for a totally destroyed aircraft though

TwistedGrin

[kballard72]

Has anyone reinforced the wing? just watched one rip off right at the bend in a turn. I am currently building mine and considering glassing the bend from the inside.

Or open to other ideas.

[TwistedGrin]

what robart retracts did you use twistedgrin? any pics? yeh,phoenix/ blackhorse models should quit making retracts period, (maybe drop the retail price by $200 and could use that to buy good retracts. i own multiple phoenix warbird models and all need replacement in short matter. this is my first bh model but retracts look almost identical in build process. bending soft aluminum for side plates on retracts = junk/ and the elec motors fall apart. thanks for any help

I stayed with the Electric Retract system
*NOTE: The tailwheel does not need replacement and works with the Robart Controller
**NOTE: The tailwheel may need to be reversed on the controller connection
***NOTE: The tailweel actuator three stage output screw may need lubricating, easily binds up when obstructed

Robart 148E 1/5th scale 90degree:

https://robart.com/collections/retracts-by-aircraft-weight-12-24lbs-rotating-electric

You will also need the retract controller board and extensions/connectors: 2s LiPo power

https://robart.com/collections/electric-retract-accessories/products/copy-of-177-electric-retract-control-unit

https://robart.com/collections/retracts-by-aircraft-weight-12-24lbs-rotating-electric/products/177e-locking-actuator-extensions

30flights now on the Robart system - I did have two Robart retract actuators fail.....the replacements have about 25flights with zero issues

TwistedGrin

[froghunter641]

what robart retracts did you use twistedgrin? any pics? yeh,phoenix/ blackhorse models should quit making retracts period, (maybe drop the retail price by $200 and could use that to buy good retracts. i own multiple phoenix warbird models and all need replacement in short matter. this is my first bh model but retracts look almost identical in build process. bending soft aluminum for side plates on retracts = junk/ and the elec motors fall apart. thanks for any help

[TwistedGrin]

Thanx twisted plenty speed their

Yep but please take note.....I think this aircraft's inflight fire was caused by a LiPo flight battery failure.....possibly due to prop amp overloading.

After repairing the FireBall I propped down to an XOAR 22x12 which still has gobs of power....Wonderfully balanced and quiet performing R/C....I have standing offers to sell it each time I fly it.

Having said all of this - the fire melted everything...so a positive identification of exactly what caught fire first was not possible. Since I had full control of the burning bird in flight and after landing.....I am surmizing one of the two flight batteries had over heated and popped off.....either flew it too long or it got too hot from amp load....or Both !!

Respect the power train - Find the amp load and set up Prop-motor-ESC within electronics specification
Fly in your numbers - don't fly the LiPo down to the red zone (Below 3.7v per cell)
Check your Batteries - Always Balance Charge
Check your power connectors - look for arching or color disfiguration
Set up landing at projected 3.8v per cell
Ensure your field has fire extinguishers on hand
Pre inspect and Post inspect every flight


TwistedGrin

[f4u ausie]

Thanx twisted plenty speed their

[TwistedGrin]

That pik shows the incredible size of the bh corsair,, looks like its well sorted now... how much flight time u getting? Have been following a bit,, its electric? Awsome aircraft

Yes Electric
Flight times at or near 6minutes....very smooth and powerful (140Watts Per Pound) Thrust. Take off and Landing with ease
Upgraded Main Retracts with Robart system

https://youtu.be/CQwR4hsBjEE?feature=shared

TwistedGrin

[f4u ausie]

10 Flights on ol' firebird today....such an excellent flyer.....

TwistedGrin

That pik shows the incredible size of the bh corsair,, looks like its well sorted now... how much flight time u getting? Have been following a bit,, its electric? Awsome aircraft

[Aros]

That's great to hear! She's a beaut!

[TwistedGrin]

10 Flights on ol' firebird today....such an excellent flyer.....

TwistedGrin

[SanExup]

TwistedGrin Pretty fricken sweet!

[TwistedGrin]

This model has become problematic.....I can't prevent myself from flying it excessively every day. The only model of this size (88inch) that comes close is the Hanger 9 Ki-43 Oscar which is a beast that lands like a butterfly with sore feet. I prefer the electric landing gear over pnuematic of the Oscar.....with the Oscar no longer in production the notion of damaging it is always in the back of my mind.....the BH Corsair parts are on line ready to go

TwistedGrin

[Aros]

Beauties!

[TwistedGrin]

GSWAM 4th of July picnic giant warbird ally

TwistedGrin

[TwistedGrin]

Excellent news Predman !!

During our clubs July 4th Picnic - I flew two sorti's with similar wingspan Zero, P-47 and Corsair gassers.....each with a flight weight of near 30pounds. They are loud and proud and have no whims to fly in heavy weather winds, their flight times are usually 6-8minutes. I could keep up with them but at expense of flight time duration.....the winds would cause me to lift a wing in the up wind banks and force me to tighten up when trying to complete figure eights.....my landing speeds were half speed to thiers. Runway passes with the three of us hauling down the runway for display passes were thrilling but I was a bit shy to loop with them as thier Kinetic speed is much more prevelant on the way down from the top. It was evident for me to observe the weight of those beast require and carry speed much more than my electric set up.....I am sure if not for the depletion of battery reserve I would not have flown so timidly with them

https://www.facebook.com/100086529913512/videos/1030033458032515/

https://www.facebook.com/100086529913512/videos/1745483255909268/

TwistedGrin