Official FlightLine F4U-1A Corsair 1600mm (63") Wingspan

[Elbee]

Elbee,

Mine weighs 8.5 with your cockpit, struts, tw and Robart wheels. Good luck on first flight. Will be waiting to hear of successiveful flight

Best Regards, Rex

Whoa, that's light. Is that dry weight or with battery?

That only leaves the primer and paint, faux P&W, cowl flap mechanism with micro servo, Canopy mechanism with 2 micro servos, and pilot figure.:grimacing:

But that weight adds up quickly.:astonished:

Where is your rudder servo?

Best, LB

[jetfool]

Elbee,

Mine weighs 8.5 with your cockpit, struts, tw and Robart wheels. Good luck on first flight. Will be waiting to hear of successiveful flight

Best Regards, Rex

[Elbee]

That seems excessively heavy to me.

Plane weighs 9.55 lbs dry with the extra OEM weights in the Cowl; an unmodified airframe is 6.3 lbs, a 51% increase over a stock airframe.

Add the 35c/6250Mah + 6 volt LiFe to run the lights at 2.1 lbs puts her at a chunky 11.5+.at suggested CG versus a <9 lb airframe at CG.

Considering the heaviest mods, Robart Wheels/Tires, 85% Cockpit with full pilot, Pratt&Whitney faux motor, Main Gear mods, primer & paint I figured she'd beef up some.

But she's so pretty.

Best, Steve

[Evan D]

That seems excessively heavy to me.

[davegee]

Evan D davegee

She weighs in at 11.75 lbs 'wet' with the correct CG of 100mm aft of the LE.

That's 38+ ounces per square foot of wing loading using a trapezoid equation for the wing shape. +/- for the rounded tip (700sq in).

Feel free to check my math. :flushed:

I've flown heavier but not at this wingspan.

Same calculations for OEM equals an 8+lb airframe and 26.3+ oz/sq, roughly 44% lighter :astonished:

Whoa, this'll be fun.

Taxi test today in the driveway to avoid any temptation.

Lighter winds forecasted for tomorrow, so "God willin' and the creek don't rise," first flight test on Sunday somewhere.

Best, Steve

Hi Steve: I just weighed my Corsair. With an Admiral 6S inside, the "all up" weight for mine is 9 pounds, 13 ounces, the same weight I have been flying it for years. Add another 5 ounces for the "Authentic Elbee Brewster bomb rack and bomb" that I have flown several times which puts it over 10 pounds.So you're only about a pound and a three quarters more than my standard flying weight, without all the details you have added on yours. I've never had any issues with mine when I've flown it in a scale manner, which I always do.I never attempt any maneuver that the full sized plane would not have tried or was unable to accomplish.

I don't think you'll have an issue with your plane at your weight provided you don't get too slow in turns or pull too many g's in maneuvers. You should be fine.

Good Luck!!!

Dave

[Elbee]

Evan D davegee

She weighs in at 11.75 lbs 'wet' with the correct CG of 100mm aft of the LE.

That's 38+ ounces per square foot of wing loading using a trapezoid equation for the wing shape. +/- for the rounded tip (700sq in).

Feel free to check my math. :flushed:

I've flown heavier but not at this wingspan.

Same calculations for OEM equals an 8+lb airframe and 26.3+ oz/sq, roughly 44% lighter :astonished:

Whoa, this'll be fun.

Taxi test today in the driveway to avoid any temptation.

Lighter winds forecasted for tomorrow, so "God willin' and the creek don't rise," first flight test on Sunday somewhere.

Best, Steve

[davegee]

I'm going to say you are okay. You could tape a weight to the front of your battery if worried.

I agree with Evan. You should be able to tape a little weight onto the battery to ensure it is within CG limits, and give you some comfort knowing that CG won't be an issue with this plane. On my Corsair, I've always just shoved it forward to the stop (Admiral 5000 6S) and it has never been an issue.Of course, I don't have all the wonderful additions that you have added on your plane, but I would think it would be fine with this adjustment to be within the CG envelope.

With my F/A-18C when flying with the Deluxe Elbee Cockpit, I had to move the battery forward close to an inch to accommodate the additional weight of that cockpit over the stock one. Whatever it takes, there is a way, I'm sure!

davegee

[Elbee]

Thanks, Evan. Much appreciated. Best, Steve

[Evan D]

I'm going to say you are okay. You could tape a weight to the front of your battery if worried.

[Elbee]

Hey Corsair Crew,

Cable management done, CG is slightly tail heavy (aft) from recommended, say 5mm+tail heavy.

Is there a problem here at that CG, 105mm+?

Due to all the mods up front, I have very limited space for more weights, though I will do what needs to be done.

Suggestions/recommendations.

Best, LB

[Elbee]

Thanks f4u ausie,

I have always poked a bit of the antenna out of the fuselage, homage to my early RC days of the 'long' antennae.

I have not had an issue ever before but I had always gone by the diagrams in my Futaba Owners Manual.

Not going to sweat it, but will do all the range checks, twice.

Thanks again, Brother.

Best, LB

[f4u ausie]

Hi lb hope u r well.. my 2 cents worth, with my minimal years, take it with a grain of salt.... i have used dynam (detrum) radio since day dot.. never had signal loss.... the rx has 2 wires good length.. only use 1 rx (sr86) gyro 8 chanel.. always have (consistancy).. anyway b4 i saw people doing the 90 dgree thing i always did 180 dgree.. left side right side,, but small hole in foam to expose the wire.. most wont want holes and visual eyesores, i get that.. but works 4 me.. point dont no if they need to b 90.... that may or maynot make it easier 4 u.. and as u no i have an f4 that i LOVE ,,and i upgrded to spectrum.. its a single wire ar631 gyro as3x etc. Dx7 buts its also exposed at the top ... dont if any of this helps.. but hope it does,, b safe and heres couple pics

[Elbee]

Hey Gang,

Question about RX antenna placement.

I fly Futaba R2008SB Rx's with duel antennae.

I have not had a problem with antenna placement with any other airframe, but due to the abundance of extras I have a great deal of wiring, servos, and whatnot with very limited free space to run the antennae at 90^o to one another.

My solution is to split the leads one going one way and down to the fuselage bottom (all good) though the other will run across the fuselage width opposite the Rx body by some length.

By doing that, the antennae ends are now 6" plus apart, but running at 90^o.

The question: Is this acceptable radio reception procedure, am I good to run these leads this way?

Any assist is immensely appreciated.

Best, LB

[davegee]

DG, I could take out the two (2) extra OEM nose weights, too. Best, LB

I hadn't thought of that, but Yes, you could do that!! Ha!

[Elbee]

If you need a bit more power, here's a possibility! Maybe a bit large, but it would probably get your airplane into the air!...

DG, I could take out the two (2) extra OEM nose weights, too. Best, LB

[davegee]

If you need a bit more power, here's a possibility! Maybe a bit large, but it would probably get your airplane into the air!

https://www.youtube.com/watch?v=Lf0mhliYa24🤣🤣

[Hugh Wiedman]

I was planning on adding a 6 volt RX pack to assist in powering the additional lights.
Best, LB

Suggest you just use a 12 V car battery to power all those lights and operating mods.

[jetfool]

Sounds like your almost there for the first test ride. Elbee. May the sky gods smile down on you. After 2 years of looking at mine and flying the heck out of sport planes I finally got two test flights on my E-Flite FW-190 and the Corsair is next in line. Plan to add a pilot and your cowl flaps this winter.

Best Regards, Rex

[Elbee]

Ever inventive steve,, im thinking its a little heavier, with all those exquiset mods,, might b in the air soon😀

Oh, it is heavier.

The 'good news' :partying_face: is I was planning on adding a 6 volt RX pack to assist in powering the additional lights.

So, I think I am going to spot on the recommended C of G with the 2 extra weights.:champagne_glass:

Fingers crossed. :fingers_crossed:

Yes, 1st check flight soon. :white_check_mark::pop

Best, LB

[f4u ausie]

Ever inventive steve,, im thinking its a little heavier, with all those exquiset mods,, might b in the air soon😀