hello,
this is my first post on the forum, so hi everybody.
right i have recently decided i want to make a model plane. i have been given a engine by my teacher. its very very old but... i would love to use this engine. so i am looking for somebody to look and tell me if it is any use trying to use it. i think its a glow engine
here's what it looks like.. plz have a look at the pictures and tell me what you think.
thankyou very much

BTW. any infomation what you can give me will be greatly apreciated

The engine looks like a Cox .049 engine.. tehhy are finicky litlle things.. I'ld wait a while to use one.. they don't have throttle so you turn it on.. set the needle and it runs until a. it rans out of fuel or b.. your plane hits th ground...
Better geta .25 or .40 engine and a trainer IMHO

so i cant use it?
heres the problem... ".25 or .40 engine" i have no idea what your talking about
right... i am 14 now...so how much is this gonna cost me? coz i dont have alota money.
i looked at some. but they where coming to about $300 [] im in UK so thats about £240 which i dont have.

Unfortunately, I don't think that's een a .049; it looks more like a .020 to me.

The problem with that engine, whether it's an .020 or an .049, is that it's not a very powerful engine. ie. it won't be capable of flying a very big aircraft.

Do a search for 1/2A (.049), or 1/4A (.020) airplanes. (There may even be a forum here on RCU.) But I think you'll find that the maximum wingspan will be in the 30 to 36 inch (76 to 90 cm) range.

You would also be limited to probably 2 channel operation, say rudder and elevator, or aileron and elevator. The engine doesn't have a throttle, and you limit directional control to save weight.

The problem with light weight RC planes is that they don't fly well in any kind of wind. With the size you're looking at, I'd say flying in anything much above 8 to 10 kph would be a problem.

I don't mean to discourage you because it will be possible to do something in that size range, it will just be more difficult. Find a local club and ask if there's an old "free flight" guy around. He'd be familiar with many of the problems you'll be facing.

Good luck with whatever you do.
Dennis-

thats quite a problem. because there arnt any clubs around where i live

The .25, .40, etc refers to the cubic-inch engine displacement.... same thing as a 2.5 litre car engine. I believe that .40 is about 7cc. .60 is 10cc, and 1.2 is 15cc

The volume of the cylinder of a .40 engine is 0.4cubic-inches. I am not sure what engine you have, but if it is .020 as suggested, then it is "pretty small".

Flying as a hobby is not cheep. there are ways to do it in a relatively inexpensive way, but I would count on spending a small fortune to get started. Typically, you need instruction (training) regardless of what plane you fly, and this typically rewuires being a member of a club, which typically means that you need to be insured, which typically means you have to be .spending money before you can fly...

In Canada, it cost me $1000CAD to get a .40 size trainer airborne (GBP400ish).

I highly recommend looking for a local club, and just chatting with a member to get a feel for what is out there, and what it will set you back. Speak to the guys at the hobby shop, they will point you to a local club.

It sort of breaks my heart to say it, but RC Airplane flying is not the sort of hobby that can be easily enjoyed on a tight budget. Every time you go to the field you burn fuel, and get tempted to buy something better, faster and more thrilling. I find it depressing when there is something I really really really neeeeeed, but can't afford it. Also, it is risky in that it is really easy to completely trash your plane, so you have to be willing to put your money at risk.

All the best

gus

What about:

http://www.g7vnr.freeserve.co.uk/

gus

P.S. Hit Greater Manchester in the box at:
http://www.bmfa.org/clubs/clist.php

r1ck0r
Try the BMFA website for clubs in your area - Greater Manchester has about 20 listed

http://www.bmfa.org/clubs/clist.php

Good Luck

If the prop is about 6 inches in diameter then it is an .049

I've got an hold one and the tank is full of gunk. You might want to take the tank off and clean it all out. Make sure you oil it well if you clean it with water.

The first step is to attach it to something and try to run it. Normally they have a spring starter such as you see here:

http://www2.towerhobbies.com/cgi-bin...?&I=LXB440&P=7

You'll need some fuel, a big 1.5 battery, and a glow plug clip. Like these:

http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXB465
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXL368
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXEPD2

If you can get it to run you could put together a control line model for little money. Might be a good place to start. e.g. :
http://www.sigmfg.com/cgi-bin/dpsmar...FV3.html?E+Sig

jim thanks that was realy helpfull. if i buy all that stuff, is it universal? so like... if it doesnt work on the engine which i have now it will go on another which i buy?

right i am now almost sure its a cox pee wee .020
what do you think? is it worth trying? or should i just buy a new engine?

That link to sig's web site should have been:

http://www.sigmfg.com/cgi-bin/dpsmar...rch_02Index_01

here is another:

http://www.sigmfg.com/cgi-bin/dpsmar...rch_02Index_01

That stuff would work with any cox engine, but not others. There are no lack of used Cox engines floating around the world so if you get that stuff and find out the engine won't run you will at least have it if you get another cox engine. I'd try buy the stuff locally, not via Tower Hobbies.

I you just want to experiment and have some fun, then hunt around for some simple plans for an .02 control line model and scratch build it. It'll be pretty simple and cheap. Ask a few questions on control line forum and you will get some
pointers.

ok thanks jim

i am sure theres a club around you somewhere, ask at your local model shop.

if you want a small trainer , theres the 'banana' by tissan haifa, for 89 quid it comes with engine and covering , EVERYTHING except radio. its 2 channel, but its a good cheap start.
however, a .40 size model is the way to go.

the first thing you should do is find a club, therell be one, you just need to find it and whatever you do, dont try and fly something on your own, it WILL end in tears!

if you want more help - [email protected]

""right i am now almost sure its a cox pee wee .020""
hmmm i take that back i am now not so sure

if you don't have a lot of money, get into electrics. there is a company that sells some pretty cheap electric stuff called gws. www.balsapr.com sells everything. i am 13 myself so i know the4 restraints of the budget. I live in california, and they have an aluminum can recycling program that gives you about $1 a pound, 29 cans to a pound. i just go around and collect them from the neighbors. also, if for the holidays you ask only for money, that usually will bring you 'round. while gas planes can be a lot more fun to fly, generally have more power, and the four strokes sound like a harley davidson and fly well in wind, electrics may be the better choice if you don't have a flying field. they will also be cheaper, but to get started from scratch (transmitter, reciever, charger, batteries plane and speed control it will cost you about $300 pretty much absolute minimum. this is an expensive hobby. you may want to try and see if you can get used stuff from somebody. this is not a cheap hobby. my last plane cost me $900

Thanks everybody you have completley discouraged me in to this hobby!

Im sorry bu this is crazzy!!!!!!!!!!!!!!!!!!

i have about 6 planes with baby bee's on there the most fun you can have on a set of wings

the kid is 14 he carnt afford to go out a buy .40's and .60's, and you would be suprised at what a 0.49 can do.


If its the baby bee you have you can have some real fun with em if it the pee wee then threr still good but your REALLY limited...

anyway heres my advice, go and get all the bits you need to run your engine

Glow plug clip
Battery (1.5v)
Fuel

once you have all this come back and we will help you run it up for the first time...

after you have played with the engine a bit and learnt how to use it you can think about a plane, now in most medel shopsthey have have the little balsa models up the corner for free flight, there a lots to choose from but pick a the biggest (normaly around a 45" 55" wing span,) and try t get a high winger, they will fly a lot better...

go build your plane put your engine in and go do some free flight, ok its not the most exciting way to fly models now, but it will give you the urge to further ...

frm there its 2 days work if your new to building to make your plane R/C with 2 micro servos for rudder and elivator you will have a ball,....

dont be put off, you have a really fun engine no go do somthing with it!!!

let us know how you get on

cheers scalebuff
but here is the problem.... i dont know what it is? its either the pee wee or the babe bee?
is there anywhere i can find out? because i have no knolege of engines.

Give a few measurements.

right.....excuse my rubbish measurments

57 millimeters from back to front
prop is 6"
width of fule tank in 28 millimeters
width of glow plug...(head) is 18 millimeters
height of glow plug is 15 millimeters (from bottom to the screw at the top
piston width is 9 millimeters
piston height is 10 millimeters
height of.....the black thing which the piston is inside...is 23 millimeters

i hope you understand what im talking about...

compare to my recently acquired Cox .049 QZ
6 inch prop, check
57 mm back to frount, check
28 mm fuel tank diameter, check

... that's enough, Congratulations you have an .049.
One of only a few million in existence

... have to leave for a few days of travel now. I'll tune in later to see how it goes.

GREAT! but.... what if the pee wee has the exact same measurments?
does anybody have a pee wee?

Hi.

I agree with Scalebuff in that you should go to a local hobby shop, get some Cox fuel, glow clip and battery. Have them look over the engine while you're there and ask for helpful feedback. Then mount the engine on a some sort of test stand (you can make one out of wood - just make sure the prop clears everything). The folks at the hobby shop can probably give you pionters on how to get it started (rather than have us explain it over the net). BE CAREFUL!! GLOW ENGINES ARE POWERFUL AND CAN SERIOUSLY HURT YOUR FINGERS, ETC.!!

If you get the engine running ok, then worry about getting a plane. Your best bet would be a control line plane. When I was your age, that's all I flew and it was fun! You can get a wood control line plane kit fairly cheap. An .049 on a wood plane will be fast! I had one, so I know!

Gook Luck!

I dont know how limited your budget is but you might want to look into getting a SPAD. YOu can build the airframe for around $10 USD. Then find yourself a good USED Thunder Tiger .46 pro $50 USD. Then save up to buy a radio system maybe around $100 USD (dont know the price on these b/c I buy the high end computer radio stuff). This hobby is expensive. I started when I was your age but I was lucky enough to get my dad involved as well so he bought most of the stuff for me.

Another good suggestion might be something like the Sky Skooter put out by Hitech. I think these are only like $100 or so for the whole set up.

If your set on using that .049 you might look into what they call an ACE Whizard or (if they still make them) a EZ BEE 2. The EZ BEE 2 was a ARF sold about 10 years ago. The Ace Whizard is a cheap kit that I think is still around. One suggestion I heard in here that makes sense is for you to visit the 1/2A forum here at RCU. These guys would know what size plane would fit your motor better than anyone.