RCU Forums - Modeltech Magic

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m gramling what engine do you have on yours and how is the pull out of a hover. I have an old and worn os 35 fp on 15% nitro with an 11x3 prop and it just dont got the balls to pull out verticle but it will hover it at full throttle. im thinking of getting a tt 36 or a tt42 what do you guys think.

The OS .52 Surpass is just over 1 ounce heavier than the 46FX. I'll be swinging a 12-5, hope to maiden fly it tomorrow...............

For props........... 32-39..........use a APC 10x5 or a APC 11x4

edible_engine hit the nail on the head on page 2! You really want a light 36ish size engine to keep the whole thing from weighing too much. All this talk of 46s is barking mad! If you put a West 36 in (7.5 lbs thrust with a 11x3) power to weight is simply not an issue!

finally, someone backs me up. thanks hercmate

Ian

Exactly!!
I have no idea why people continue to miss the point. The best way to make an aerobatic plane perform better is to be light. This is especially true with 3d and funfly.

If the plane has more power than weight then why add a larger heavier engine?

If it needs a little more thrust then try a different prop or add more nitro to your fuel.

If you need to cut down on weight then buy lightweight servos and reciever. I saved over 4 oz with lighter high performance servos, reciever, and a 6v NIMH battery.

Light weight + tons of thrust = crazy mad flyin

Yes TWO peeps. Thanks

Ian

I also don't know why plane manufactures don't get the point either!!!!
A 40 sized cap or extra should never be over 5lb and a couple ounces, but i look around and what do i see but all knids of flying bricks!!

Before you say it i will Ian.

Capiche!!

yes that was sarcastic

No problem edible, didn't like to see you soldier on all on your own, esp as you're right......:)

I think you should go out, buy a couple of wedding rings and become Mr & Mrs Capiche!!!!!!

Before you even think i meant THAT, I mean the plane.

Over here in england your not allowed to get married untill your 16 :D

Now that's funny....................................
If you guys think 3, 4 or 6 or more ounces of weight on a craft with a wing loading equal to that of a 3D ship will effect flight........... then ya...... talk to me when you have some experience to draw from.......
Granted, setup becomes more critical but if you're just throwing it around up there hovering hands free etc etc..............then you would want it to be as easy as possible..........Enjoy....
They should post ages under your names.................... :rolleyes:

Edible
how many planes do you have?

Actually I am talking about more like 10+ ounces.
Lighter engine-4 oz
Weight taken from the tail-2 oz
Lighter radio equipment-4 oz
Lighter muffler-2 oz
Lighter carbon landing gear-2 oz
Little nit picking stuff like foam-1 oz

15 oz

And yes it does makes a huge difference. Even if weight savings would be dropped by 8 oz. On a 4 lb plane that is 13% weight savings.

And yes i do have experience with this type of weight saving as I saved 6 oz with my magic and it made a huge difference in the performance.

Oh yeah, I'm in my late twenties.

Go fly your bricks!!!!

only 2 1/2 are flyable

Check out my profile for the list

But if your talking abot my wish list, well theres anouther question :D

If you take a 4-5 pound plane and can knock 8oz off that, then you'll probably notice a considerable difference in performance. Some designs will benefit more than others. The Magic definitely seems to be happier if it's under 4 pounds.

Wade

Yes, your all starting to realise..............LIGHT IS RIGHT (sorry, thats just cheesy)

I have a cougar which way 1.5 kg on the nail. i thin, correct me if im wrong, that about 3.5 lbs. Ive used the lightest things possible.

Irvine 36 engine
Ali. mini throttle pipe
10swg piano wire UC
Mini throttle servo
4oz fuel tank
Carbon pushrod for the elevator
Closed loop (pull-pull) on the rudder
NO tail skid
And if any covering gets punctured. replace it with lighter covering.

Anouther person on this forum got a limbo dancer down to 2lbs!!!!!!!!!!!!!

IAN

O'yeh, thats with alot of crash damage aswell!

Quote:

Originally posted by edible_engine
Yes, your all starting to realise..............LIGHT IS RIGHT (sorry, thats just cheesy)

I just didn't realize this, I've known this for a long, long time! :D

Yes, I do know that lighter flys better. but I am lazy. I bought the plane used.

Wade,
I am running a TT46pro, w/ moosecan. NiMh 720 MH 6volt batt. 8oz tank. stock landing gear, and wheels. I am running 5 standard JR 517 BB servos. Stock motor mount.

I got this plane used, it already had the mount tapped for a OS46. So I just bolted my TT46 in. weight is not @ 4lbs dead even. No extra weight added to get it to balance. CG is perfect, I built me a little tray over the back servos, to get my CG right. It flys great, just a little heavy. Likes to tip stall.

If I do me another one. i would definately go with a my OS32SX. Or even a 46 LA. There is a guy at my field that has one w/ a stock 46LA and hovers great. If I went with same setup exept for motor:
swap to my OS32SX I could save 3oz. but if I wanted to do a little work. I would do this:
Swap throttle servo to a micro save another 1-oz.
Swap rudder to a hitec 225. Save another 1/2 ounce.
Get rid of switch save another 1/4 oz.
Swap out 8oz tank to a 4oz tank, save a little bit more.(don't need a 8oz tank on a .32, you could fly for over 20mins on a 8oz.
grind motor mounts down. save some more.
since I don't need to battery at the back on top of servos, because I don't need the tail weight, move battery under tank. then take out platform made, save maybe another oz.

With a little work, this plane could come it at 3.5lbs give or take a couple of oz. A OS32SX with stock muff/w baffle removed will hover a 4lb airplane, and pull it good. But if you can get the weight down to 3.5-3.75lbs. Pull out would be alot better.

Last year, I flew my OS32SX on a 4lb menace and it would pull out of a hover with ease. I now have it on a new menace that weights 3.5lbs and it shoots out like a rocket.

Ok, thanks for the info! I flew my Magic last year with an OS 46FX and it flew fine. I just flew it today with a Webra 32 and I like it better with the 32 versus the 46. Both setups using a mousse can. I changed a couple of other things to save weight and I'm about 1/2 pound lighter now than I was last year.

Wade

Quote:

Originally posted by WADE
I just didn't realize this, I've known this for a long, long time! :D

The 'light is right' part is cheesy