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-   -   tiger 60 with a 26cc engine? (https://www.rcuniverse.com/forum/beginners-85/8096355-tiger-60-26cc-engine.html)

millertym2000 10-29-2008 03:19 PM

tiger 60 with a 26cc engine?
 
I have my tiger 60 that has a ST 75 in it. I'm wanting to start useing gas and not nitro, the cost of nitro keeps going up and I'm wanting to go gas anyway. My question is I found a cheap 26cc engine that comes in at 32oz. My ST is 27oz and then I had to add an oz. to the nose to balance, So if I do some mods to the nose of the plane to hold the engine and add a little weight to the tail do you think this will work?

MinnFlyer 10-29-2008 03:42 PM

RE: tiger 60 with a 26cc engine?
 
It's probably not the best idea.

A 26cc engine swings an 18" prop comfortably. You'll love gassers, but pick a bigger airframe

bigedmustafa 10-29-2008 04:20 PM

RE: tiger 60 with a 26cc engine?
 
Nitro should start coming down in price again soon now that the Summer Olympics are over with. China is expected to be ramping up production.

CGRetired 10-29-2008 04:22 PM

RE: tiger 60 with a 26cc engine?
 
The engine choice will do absolutly nothing for the performance of that plane.. if that's one thing you are looking for. The cost of fuel, well, as BigEd said, it will soon begin to come down to normal prices once inventory begins to build. My Tiger 60 flew just fine with an older OS 62 SF, and did everything I expected it to do. As Mike suggested, save the gas engine for a gasser plane.

CGr

millertym2000 10-29-2008 04:53 PM

RE: tiger 60 with a 26cc engine?
 
I'm not looking for any more out of the plane, Just looking to get into gassers and thought the tiger might be able to hold it. But I am looking at getting a larger plane to hold either a 26 or 50cc engine. Looking for something that will do 3D but with the throws turned down will be a calm flyer. Any Ideas?

bingo field 10-29-2008 05:02 PM

RE: tiger 60 with a 26cc engine?
 
If you look around, I think I saw on the site here somewhere, an advertisement for a 20cc electronic ignition engine, supposed to be a direct replacement for 60 - 90 size engines.

http://bennettbuilt.com/page2.htm

http://www.wholesaletrains.com/Detail.asp?ID=200430272

http://www.horizonhobby.com/Products...rodID=ZENE20EI

RCKen 10-29-2008 06:04 PM

RE: tiger 60 with a 26cc engine?
 
My flying buddy has a 23cc engine in a 4-star 120 and it's a great fit. That's about the size of plane that you should be looking for to put your 26cc in. The Tiger is going to be way too small for that engine.

ken

microsprint9 10-29-2008 07:36 PM

RE: tiger 60 with a 26cc engine?
 
1 Attachment(s)
Sure it will work, i put a 21cc in the nose of a Lanier Explorer 40 and it flew just fine, the balance was even right on with the 32oz engine in the front, other than the deadsticks cause i flipped the carb to make the throttle linkage easier not knowing there was a crankcase pressure line to run the fuel pump in the carb, the last deadstick did some damage on landing, i gave the plane to a friend and he now has a 26cc Stihl on it. I did heavily reinforce the nose with extra glue and triangle stock, i also glued another 1/4" ply firewall on top of what was there. There has been about 40 flights on this plane and it's holding up just fine. Here's a pic of it with the 21cc on it.

Warning: As usual this thread is in the beginners forum, please do NOT try a mod like this unless you absolutly know what your doing.

ChuckW 10-29-2008 07:55 PM

RE: tiger 60 with a 26cc engine?
 
You'd be better off trying to put that engine into the 1.20 size Tiger.

2slow2matter 10-29-2008 08:09 PM

RE: tiger 60 with a 26cc engine?
 
You'll likely vibrate 1/2 of the glue joints loose with that engine on that airframe within the first few flights. For the 26, you need something in the neighborhood of 8-10 lbs airplane. I have a G23 on an 80 inch 13.5 lb airplane and it's a great match. I've seen the ST 90's converted to gas, you might try that route too. Or the G-20 ei is a good choice, but a bit heavy for the power I think.
There are gas options (few, but some) for that airframe, but a 26 cc isn't really a good one.

Jetdesign 10-29-2008 08:43 PM

RE: tiger 60 with a 26cc engine?
 
I was looking to get into gas engines. I found, and the general consensus is, that it just doesn't make any sense for a plane less than 30% scale - even the 25% planes don't benefit. The problem is the power to weight ratio - you have to add a lot of weight for a gas engine, and nitromethane has a lot more energy than gasoline, so you're losing on both accounts. Once you get to 40CC, the power to weight ratio starts to go the other way and you would benefit with a larger plane. The plane you have is supposed to be a great flier, but most likely only at the appropriate flying weight. Believe me, I understand the desire to get into a 'gasser', but definitely do some research and see what is to be said about them and the planes they belong in.

Things to consider are: was the plane meant to fly at that weight? It surely wouldn't fly like the Tiger 60 everyone knows and loves. Was the airframe designed to handle that much low-end torque? There's also a different amount of vibration, again was the plane meant to handle it?

Don't forget you would need to add more electronics (weight/batteries) for the ignition.

I tried and tried to find a good small plane to accept a 26cc gas engine, and kept hitting a dead end. The 25% are being flown with 1.60/1.80 glow, and the 33% are getting the smaller ->40cc gas engines.

Try an efficient four stroke - you will get low end power and fuel efficiency. If it makes you feel better I am running two 1.20 two strokes and 10% fuel here is $35 a gallon.

millertym2000 10-29-2008 08:55 PM

RE: tiger 60 with a 26cc engine?
 
WOW, $35, I know Its probably cheaper here then most other places. I pay $20 for 10% . My goal is to move up to gassers. And thats why I asked the question here is because I didn't want to change anything before I know it will work, Or work right. Thanks for all the help.

ChuckW 10-29-2008 09:54 PM

RE: tiger 60 with a 26cc engine?
 

ORIGINAL: gaRCfield
I was looking to get into gas engines. I found, and the general consensus is, that it just doesn't make any sense for a plane less than 30% scale - even the 25% planes don't benefit.
So a 25% Cub with a G-20 or G-26 is no good? I sure see a lot of them and they are wonderful flying airplanes. I plan on getting one myself this spring.

What about my 27% Christen Eagle that the manufacturer recommends a 40cc-50cc gas engine for?

A fellow club members 25% Yak-54 that tears up the sky and is a 3D monster with a 50cc?

A 27% Edge-540 with a G-45?

There are actually some even smaller planes that work well with small gas engines. Some examples are scale biplanes like the GP Stearman and P-6 hawk. Both require a lot of added weight to the nose when using a glow engine. The weight of the gas engine takes care of that balance problem and works well. Another example would be a warbird with a big round cowl. I've seen G-20's on H-9 corsairs and P-47's and they balance & fly great. These are more advanced planes of course with higher wing loading than something like the Tiger-60. It's not something someone would want to take on unless they were ready to move on to that type of plane.

I've seen G-20's on .90-1.20 size aerobatic and 3D planes too.

I'm sure there are others out there as well. What your saying about gas engines is somewhat true but not entirely. There are applications on smaller planes where it can work very well.

Millertym200's Tiger-60 wouldn't work too well of course.

Jetdesign 10-29-2008 10:32 PM

RE: tiger 60 with a 26cc engine?
 
All I know is I tried very hard and talked to a lot of respectable pilots in different flying categories (pattern, IMAC, and 3D) and found that it is very difficult to find a happy combination of 25% plane and gas engine. 26cc is not enough power (for aerobatics) and 40 cc is too much weight. What is the wing loading on the Yak with the 40cc? What happens when it dead sticks? I thought about getting something very similar, and these were the questions I was asked. And of course there are always exceptions, and you can get things to work that are not optimum.

Delta3 10-29-2008 10:36 PM

RE: tiger 60 with a 26cc engine?
 
Firstly if you buy any kind of pre mixed fuel it is always going to be more expensive than if you buy the components and mix it yourself. Over in Oz mixing the fuel has cut the cost downby about 55%. I have a Tiger 60 and I fly it with a TT 91 FS. Doesn't need that much power but I had the engine and it needed a home. Overall is a good combination. Don't know how much your Gas engine is going to cost but it all seems like a bit of over kill to me. Carrying separate fuel cans, different pumps etc. If you are going to go with Gas build the appropriate size plane because the engine you are talking about soundsway to big for a Tiger 60.

I mix my own fuel and have for a long time, buy yourself a good measuring jug from a chemical store, buy the components separately and mix you own, you will save. This is an expensive hobby, trying to save a few bucks and cut corners or use inappropriate motors on aircraft is pointless and generally leads to disaster and a big bag full of balsa. The manufacturers put a rating on the plane to fit in with design and engineering parameters.

ChuckW 10-29-2008 11:19 PM

RE: tiger 60 with a 26cc engine?
 

ORIGINAL: gaRCfield

All I know is I tried very hard and talked to a lot of respectable pilots in different flying categories (pattern, IMAC, and 3D) and found that it is very difficult to find a happy combination of 25% plane and gas engine. 26cc is not enough power (for aerobatics) and 40 cc is too much weight. What is the wing loading on the Yak with the 40cc? What happens when it dead sticks? I thought about getting something very similar, and these were the questions I was asked. And of course there are always exceptions, and you can get things to work that are not optimum.
The Yak has a 50cc and I've never seen it dead stick since it runs well. I can only assume the wing loading is good since it handles 3D flying very nicely.

My point though was that you have to be careful about just throwing out advice with limited experience. I even shy away from answering some questions on here since I've only been at this 5 years or so and I'll be the first to admit I've put my foot in my mouth on here on an occasion or two.

The advice you got may be right on for the type of plane and flying you intended to do but it is not accurate in every case. There are a vast multitude of aircraft designs and engines out there. You can't just say a gas engine won't work on a 25% airplane. What kind of airplane is it? How much does it weigh? What gas engine will be used? How will it be flown? Sometimes the gas engine will be optimum.

I'm not trying to be a jerk, just trying to get you to see that there is often more to the story.

25% airplanes generally don't fit into a beginners forum though so I'll shut up about them.

Missileman 10-30-2008 05:26 AM

RE: tiger 60 with a 26cc engine?
 


ORIGINAL: gaRCfield

All I know is I tried very hard and talked to a lot of respectable pilots in different flying categories (pattern, IMAC, and 3D) and found that it is very difficult to find a happy combination of 25% plane and gas engine. 26cc is not enough power (for aerobatics) and 40 cc is too much weight. What is the wing loading on the Yak with the 40cc? What happens when it dead sticks? I thought about getting something very similar, and these were the questions I was asked. And of course there are always exceptions, and you can get things to work that are not optimum.
I guess the point is you are lumping all airplanes into this. Not everyone is interested in flying a lot of aerobatics.
My GP Super Stearman has a G26 in it and is a perfect match. And even then it will do aerobatics just fine.
No it will not hover but it is not suppose to, it is not that kind of plane.

proptop 10-30-2008 05:33 AM

RE: tiger 60 with a 26cc engine?
 
One more thing to consider is prop to ground clearance...
A friend had an FP .60 on his...flew well...and it had little prop to ground clearance w/ a 12" prop.

I agree w/ (almost ) all of the above...too big and heavy.

Jetdesign 10-30-2008 09:26 AM

RE: tiger 60 with a 26cc engine?
 
Points well taken.

beachbrada 10-30-2008 01:17 PM

RE: tiger 60 with a 26cc engine?
 
ya gaRCfield keep your newbie comments to yourself, LOL, just kidding. Maybe if we lived closer together we could all get together and have couple drinks and laugh about the situation then go fly our planes and try to not crash. Hey I've been only flying for a year but do I get any bonus points for working on real aircraft?:D Maybe not because I ask way too many questions on here. LOL

Jetdesign 10-30-2008 01:56 PM

RE: tiger 60 with a 26cc engine?
 

ya gaRCfield keep your newbie comments to yourself, LOL, just kidding.
I do try, honestly ;)

So what are planes that would suit the OP's engine find (26cc gasser) and his flying style? Just because the gasser won't be right for the Tiger 60 doesn't mean he should give up on the gas idea.

RCKen 10-30-2008 02:00 PM

RE: tiger 60 with a 26cc engine?
 


ORIGINAL: gaRCfield


ya gaRCfield keep your newbie comments to yourself, LOL, just kidding.
I do try, honestly ;)

So what are planes that would suit the OP's engine find (26cc gasser) and his flying style? Just because the gasser won't be right for the Tiger 60 doesn't mean he should give up on the gas idea.
As I said above, 4-Star 120, and another post that pointed out Tiger 120. These are excellent planes for this size engine.

Ken

opjose 10-30-2008 02:08 PM

RE: tiger 60 with a 26cc engine?
 


ORIGINAL: bigedmustafa

Nitro should start coming down in price again soon now that the Summer Olympics are over with. China is expected to be ramping up production.
I sure hope so!!!!

Fuel prices were getting fairly outlandish.

2slow2matter 10-30-2008 02:35 PM

RE: tiger 60 with a 26cc engine?
 
Add to increased production, a typical decrease in winter flying here in the states, and that should make the inventories stabilize quite a bit, giving us some relief. Although I can't really complain, my LHS in Ft Worth has never really went above 17 bucks for 20/20 YS blend, and about 15 bucks for 15%. This is powermaster, so it's good fuel.

RCKen 10-30-2008 02:42 PM

RE: tiger 60 with a 26cc engine?
 
My LHS only went up a buck in price on Cool Power 15%. Price went up to $16.99 a gallon. I can live with that!!!

Ken


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