does anybody have or heard anything about the .30 size ultimate from world models?
i heard some good things about their other planes (the .40 cap in particular), but cant
find anything on the .30 ultimate.

i've been looking everywhere for a small size ultimate (40-50" wingspan) arf that will fit in my
small car. as far as i know world models is the only one who makes one.

what's the quality like and how does it fly?

thanx,
brian

When all else fails, or maybe even sooner , try the User reviews (formerly known as product guide) link at the top of the page. Quite often you will find that people have provided some good reviews there. For example: http://www.rcuniverse.com/product_gu...fm?kit_id=1133

thanx for the tip, piper_chuck. i think i'm gonna get one. it'll be my first bipe and first glow model.

what engine would be a good (and not too expensive) engine for a 4.5-5.5 lb plane?

brian

Conductor stop the train! Your first glow model? More details are in order. What flying experience do you have?

Biplanes are not good "first glow models" unless your prior flying is perhaps on gas powered planes. If you're coming from electrics, you'll be better off starting your glow flying with something a bit more mild mannered. Perhaps a high wing trainer, perhaps a low wing "trainer", it's hard to make a specific recommendation without knowing more about your flying experience. In fact, the ideal scenario for you is to find someone local who can see you fly, recommend a good "first glow model" based on your skills, and then help you through enough flights to make sure you're ok.

Boosted ... you will do well listening to what Piper says!

I have the .30 size WM Extra and it is a great little flyer..... I put a Saito .56 in it and it is a great combo for the Extra...

Mine has a .52 Magnum fourstroke, and it's a nice plane. I can stick it in the back of the SUV, assembled, pull it out and fly it, even in the winter. During summer, I prefer larger models, but this one has always been dependable.

I have posted in at least 3 threads about this plane, so I know you can find that many threads with a search.

This plane would NOT be good for your first venture into glow, unless you've been flying taildraggers that rise off ground and land fast, in whatever power configuration you've been flying. The plane is very NIMBLE. That means, for the inexperienced, it's unstable. You have to fly it every second it's in the air.

Good luck,
Dave Olson

Compared to the Pitts it's pretty stable. But for a first time glow flyer I wouldn't waste your money. My Ultimate is so responsive and quick there is little time for corrections if you get outta track. And the smaller sized bipes get small very fast.

i've flown my friend's glow models before and have a few electric pattern and 3d planes myself. electrics are convenient but i like the larger size/ power of glow, which is why i wanna get into it.

i actually started flying glow trainers when i was a kid. been out of r/c for like 20 years and i got back into it flying electrics. it will feel like my "first" glow plane b/c i dont remember too much about glow engines at all from when i was a kid.

so unless bipes fly dramatically differently from 3d and pattern monoplanes, i think i should be able to handle the ultimate....

thanx,
brian

Yes, I would say it's dramatically different from the 3D and pattern electric planes. Much heavier, much lower power-to-weight ratio. Will not fly real slow, you want to be ready to touch down if the Ultimate 30 is going slow.

In the air, for a draggy biplane, the Ultimate 30 is nimble enough for most pattern type aerobatics, but not as stable as a big pattern plane. Mine will hover for a few seconds, but that's about it.

Landings... I keep mine fast. Oh, and the stock gear wants to bend back a bit with each landing on grass. Over the first 100 flights, I bet I bent mine back about 25 times, maybe more. Over the next hundred, perhaps a dozen times. I didn't get better with landings, I think the wire gear just work-hardened.

Your call, good luck,
Dave Olson

the power to weight ratio will depend on the engine i put in it, correct? there must be an engine that'll give it close to unlimited vertical.

one of the reasons why i wanna get into glow is the power. you can get good power in electrics also, but you'd better be ready to put out a lot of cash, esp if you like the larger planes. for my fliton quiet storm (44" wingspan, 25 oz auw, about 30-32 oz thrust), just the brushless motor/ gearbox, speedcontrol and 3 battery packs costs about $400. it's got a power-to-weight ratio of about 1.2. decent but definitely not "unlimited" vertical. my friend's magic extra with a magnum .52 (i think), which i've flown, has way more power. (i think the power to weight is at least 1.5 or 2:1). there are maneuers that i can easily do on his plane that are a bit more difficult on mine just because of the lack of power. and his plane+ engine costs a lot LESS than mine (plane and engine combo only about $200).

it might take a bit of time for me to get the "feel" of flying a glow bipe but hopefully it's not gonna be so different from monoplanes that i'm gonna crash or anything. (i've actually had one electric bipe also but it's probably quite different from glow).

i'm a bit more concerened about setting up and tuning the engine. but hopefully it wont be too bad. (does experience with real car eingines help? hahaha...)

thanx for everyone's info. i'll let you know how it goes.

brian

I suppose if you use something like a .50 twostroke, with a big 3 pitch prop, you'd have unlimited vertical. I run a 12X6 on mine, and it has ground clearance for the prop.

Yes, if you've had experience adjusting spark ignited engine carburetors, that counts. You will need to provide adjustment capability for whatever glow engine you use, both for the big needle and the low speed needle.

If you've had experience taking off & landing low wing taildraggers, and you start gently with the Ultimate 30, you'll be okay. If you haven't had practice with taildraggers, you'll probably want to practice with something else. Rudder use is essential during takeoff. Also, when taking off, I recommend you not pull the nose up unless you're at flying speed - and then only a shallow climb. It is possible to yank this thing right off the ground, but once airborn it needs to be at flying speed - or it will snap.

Good luck,
Dave Olson

thanx scar. actually all the planes i have now are low wing tail draggers, except for my wing.

i cant wait till i get the ultimate. i've heard that bipes, esp the ultimate are better at slow rolls (one of my favorite maneuvers). my pattern planes can slow roll, but it takes quite some work (i didnt have a computer radio with any fancy mixing functions). i just got the optic 6 yesterday and in the process of
setting it up now. cant wait to see what a difference it'll make.

I have been flying a world models ultimate 30 with an AXI 4120/14 and tp 4s2p battery for awhile now. The axi spins a 14x10 prop at about 600 watts and provides unlimited vertical. The AUW is 4.5 lbs. It was a good chunk of money to power this plane( it would be cheaper today as the batteries and motor prices have dropped) This plane would also fly nicely on an AXI 2826/12 at about 525 watts with a 13x8 prop. Its not the easiest plane to land, but it is easy to fly.
Kevin