Official Black Horse 2280mm F4U Corsair thread

[Fizeman]

Congrats 👌🏼 Sounds awesome 😎🙌🏼 looks good in the air, even with the gear down. Looks light on takeoff. Can’t wait to get mine in the air.

[Reennie the second]

And here the Youtube video from the maiden.

https://youtu.be/pQEkjvbTyLc

[Reennie the second]

Today was maiden day. Everything went smooth-ish. LG was a little bit stubborn so I have not retracted it yet, it binded a little in the wingcavities (already taken care of). Decided to fiddle around with the needle settings for engine, ended up being too rich and running a littlebit scruffy. Ample power acceleration wise, speed is not that impressive; need more pitch on the prop (now still the wooden 26x10). First landing was to careful speedwise, so a little hop. Second and third were way better already, need to get some feel for the landingspeed. Needed hardly any trim in regular flight and a little bit with the flaps. That being said. it was all with the gear out. Friendly flier with a nice presence in the air and an impressive growl. I'm happy!

Ow, forgot to tell: AUW is 12,43kg without fuel.

[Reennie the second]

Looking really good! And all that in less than 11kgs! Wow!

My maiden last sunday was a no-go. The weather was not nice (to windy to my liking for a maiden of a big heap of money - to my standards at least... :-) ). I did go to the field and tested some small fixes. Also used the opportunity to go through the last ccs of gas for the running in. So next will be 1:40 gas and maybe a little leaner needle setting (my UMS friend sprays a lot of black goo on everything behind it) as I made the mixture a tad richer from factory because of the running in.

Weather is looking favorable next sunday, so I hope nobody does a raindance over here and then we'll see.

Maybe I see a chance to take a flight ready weight measurement to replace the guesstimate.

[Fizeman]

II made some baffles of Carbon.
And I glued in a plate of Carbon for the servos in the wings.

[Fizeman]

Wow. You are done allready 🙌🏼 That ums sounds really nice 😎 can’t wait to hear about your maiden and how it performs 👌🏼
I am allmost there 😃

[Aros]

Good luck!

[Reennie the second]

First time taxiing at the field. After some struggles to get everything up and running today I finally succeeded; Victory! Had to add 170 gram of lead pellets to the very rear point of the fuselage (the tip after the horizontal stabilizer. Did not weigh the final weight, but I guesstimate to be around 12.4kgs (with one battery and no tank, pump and lead it was 11.7).

Damaged one wing in the process, so still work to do.

https://youtu.be/WtDNIjC_c_A

Maybe maiden tomorrow.... Fingers crossed.

[Reennie the second]

Fitted the cowl and made a baffle to fit.


Made a transport stand with some foldable legs for assembly at the field (to be able to extend the lg)

Went to the Prowing last week and treated myself to a very nice Ramoser Varioprop.

More work than I thought, but we're getting there.

[Elbee]

Reennie the second,

Beautiful work, Sir.

Best, LB

[Reennie the second]

Small update on my progress (posted already on RCU... :-) ) with some pictures.

Corrected the motormount and drilled holes for the UMS. Upper row of holes are on the upper edge of the motormount, not super but for now I'll continue. Reinforced all seams with CA and resin, guess it will hold up.

Mounted the UMS, seems to fit nicely.

Made the cabling in the wings and cobbled some connectors using LEMO 10 pole stepped contacts (thanks Ruud!). Connectors in the fuselage will have some cable slack and click into wingmounted supports.

Wings are finished except some details with the gear doors.

Next up will be balancing and placing last components in the fuselage.

[Reennie the second]

And you needed 600 grams to get the CG OK, that looks promising for my combination... :-) Also looking good that the weight is still around 12kg with your filled to the brim RC compartment. Maybe mine will also end up not too obese.

Really curious how yours flies! Exciting times ahead!

[Fizeman]

I have the 60r3 installed.

[Fizeman]

600 grams to get the cg right. Still under 12 kg’s flightready.

[Reennie the second]

Whoah! You're progressing nicely! When are you going to maiden?

What engine did you decide on? The FG60R3? How does the CG pan out? For me it is going to take a few weeks before the engine gets mounted...

Mine was on its own legs for the very first time this morning.

[Fizeman]

Not a lot of room left 😄

[Fizeman]

The doors looks good 😎 you did a lot of work on that Retract 👌🏼

[Reennie the second]

Some progress on the tailwheel and doors. Testprinted some wheels and Quick & dirty painted the wing inlets...

Tailwheel with new hinge point for the door rods.

Little bit of paint on the wing inlet


New hinges for the tail gear doors:


Doors closed

Wheel testprint. Rubber is still somewhat to hard, gonna reprint. Material of the tire is TPU Varioshore, rim is from plain PLA.

[Reennie the second]

Looks nice already... Some painting and then it's really nice...

[Reennie the second]

Corsair came in today. What a nice kit, really impressed. Landinggear is different than I saw in the forums. Hopefully finally stable and working. Included some pictures for those that might be interested.

And the UMS 5-100 seems to fit!!

Now printing some wing inlets to replace the ugly vacuumformed thingies...