Hi, A friend of mine is trying to sell me an Extra 300 (Lanier) and an engine which is supposed to be a Brison 100cc single piston with less than a gallon run through it. I have tried to look for this engine but have not found any information on it. I do not know if it really existed... Was it ever produced? I believe the engine to be an older one. Well if anyone has this engine or information on it I would really appreciate it. Is this a nice engine or should I stay away from it?
Thanks for your input and best regards,
Homero Cuellar

Perhaps it is a 96cc 5.8 engine?

The 5.8 single was a relatively good single, originally manufactured by A&M until Brison bought them out. At least I think that was the way it went. There were some crank problems towards the end of A&M, but Brison corrected many of them at a later date.

RCIGN1, jump in here anytime you want to straighten me out if I got any of that wrong. It's been a while on the A&M thing, so my memory could be a little faulty there.

Overall though, a 100cc (+/-) single cylinder engine can turn out to be quite a "thumper" creating a lot more vibration that you can ever use, and be rather destructive with your radio gear.

The Brison 5.8 single is a very good engine. I use one in my Ziroli Corsair. More info is available here:
http://www.brisonrcengines.com/

Ken

So the only concern on the engine should be the vibration? Are there any isolators for these kind of engines out there?

Also, this engine does not have a blue crankcase so this is an older version, are these the same is the polished crankcase just looks? Is the newer version better that the older one. If so, in what ways?

Thanks,
Homero

We have tried isolators on 5.8 singles, always went back to solid mounting...[8D]
Shock mounted engines have a problem with shaking the mufflers loose, unless the muffler is reinforced to the engine...

Homero, why don't you get your friend to start the engine on the plane and see how it runs? Flying it might even be better. You could make a better decision that way.

Although I fly one with a green case, there is no way that I would know all ot the development history or modifications to the older ones. When I bought mine it was already 6 years old and had never been run by the original owner. I have over 60 flights on mine. The only problem with mine was that the Hall effect sensor on the CH Ignition went bad and I replaced it. Otherwise, no trouble at all.

Ken

Well Big_Bird I would if I could, but the Extra still needs to be covered and the firewall placed according to engine... I have heard that it was run once on the ground and once more flying and everything went well. My concern here is that I will be getting this for aprox. 700 USD for both the engine and unfinished plane plus some hardware and a big Monokote roll... Is this a good deal or should I skip it?

I do have a 1/3 Laser from Lanier too which is sitting waiting to be built, with a MacMinarelli twin 85cc waiting for it. So to buy the Extra it really needs to be a good deal. So what do you think guys?

Thanks,
Homero

Jump on that deal!!!!! Fast, or at least tell me where it is.

The silver color of the case only denotes that is an older A&M case, or a new Brison case. Both are essentially the same. Brison was anodizing for a while, but stopped it when the shop they had doing the work became slow and unreliable. Now they are all polished cases. Pretty much the same performance with either one. Any performance differences would be minimal, if any.

I sure don't believe that I would pay that for the combo but you have to judge for yourself. I have a Lanier 33% 300S with a Brison 6.4 twin and it's a pretty heavy combo by today's standards. Around 30 lbs.

The current price for the 5.8 is $579.95 + muffler. However, you do get a warranty which can be pretty important. A lighter weight and a little more expensive engine is the ZDZ80 single.

Ken

Well, this "combo" would be my first gasser and first large (over 72") bird. I am not a really hot 3Der but am in the process... As I understand it, to have one of those REALLY hot and nice planes you have to go to "other" much more expensive kits.

Would this plane be under powered? The weight/performance is not an adequate one? additional comments and suggestions are very welcomed I have not decided yet...
Homero

The power to weight ratio would be more than adaquate for IMAC type of flying and some 3D. Keeping the weight down wherever you can in the set up helps with any plane. It was designed around an 80 to 100cc engine, so you are already near the top of the power range.

The Lanier 300 is an older design, but flys well. It was never the lightest kit on the market anyway, so I wouldn't be concerned much about that.

Unless you are already the area 3D hottie, I doubt that you will ever note any defincies in the flight manners. One of the nice things about Brison engines is their ability to run for far longer that you will usually have a use for them, and their reliability, which is very high. Also the ability to get parts for the engine should you need to for any reason.

As far as needing to have the most current aerobat on the market, I still have an old Ace 30% Extra 230 with an old Sachs 4.2 that's pretty heavy, but still fun to fly. Because it's still fun, I wouldn't get rid of it.

My opinion is that the combination is not a bad deal at all, and will give you a good learning platform.

Thanks for the advice Silversurfer. I might as well take the deal... My concern now is that I have lately read on the forum that the Brison service is not "THAT" good. Any comments on that?

http://www.brisonrcengines.com/6.4_small.htm

My comments on the service issues are still pretty much in line with what I have posted in the other thread. Agreed, they are not the fastest, but unless you crash the engine it's not likely you will need any service.

I have enough faith in the company that I currently have a 6.4 twin on order. I know that I could get another engine from someone else faster, but I don't have the need for a "right now!' engine. I also don't have a need to feel that I'm "in with the in crowd" regarding an engine brand, so I'll wait for what I know will work well, reliably, and last for a long time.

I don't intend to offend anyone, that's just the way I feel about the deal.

Don't defend your innocense.. They are good engines, and besides, your choice is yours.. You don't need to appologize for that.
Roger