gade600sdi

Is it just me or de we have a big void in the HIGH PERFORMANCE gas engines from 30cc-55cc range? We have the Syssa 30 and the DLE 30 and then the DA 50, DLE 55, OSGT55 but there is nothing in the 35-45 cc range. There is a big void from 30-55 cc and almost no engines in that space. I know there is a Zenoah G45, but I am not talking the heavy chain saw engine. The only thing I am aware of that is close is the Evolution 40GX.

Anyone know if there are good motors I am missing or if anyone is working on one to fill this void? I have a plane that needs a light high perf. 40 and a 50-55 may be a little much for it.

w8ye

My Feedback: (16)

The current popular 50cc class engines weigh no more or less than the previous 40cc engines

The current 30cc class engines like the Syssa and the DLE make as much power as the old 40 cc engines

All Day Dan

My Feedback: (5)

The Brison 2.4 is a great engine. They are no longer being manufactured but there are plans to start up again in the future. For the time being, you can try Fox, they use the same parts in their 2.4, or there is a new one in the RCU ads right now. Sometimes they show up on Ebay. Try Bill Jensen at [email protected]. He may be able to put one together for you. Dan.

ec121

My Feedback: (2)

I have a Taurus 43 that is really stout, but I don't think they are made any longer. The weight on the new 50s is equal to the 40s. Ground clearance could be a probelm with some airframes with a 50.

krayzc-RCU

My Feedback: (31)

the airfarme are larger to and 40cc is hard to work in if u ask me. that dl30 as a nice addition to the gas family........

stangevil29

My Feedback: (1)

The YD-A 38 will hopefully be out before long. I've been waiting for it on two seperate planes. www.rcaer.com
Stangevil29

Whistling Death

gade600sdi , I have been wondering the same thing. There is a segment of the RC class that is being missed. The Zenoah 45 is one of the best engines that has ever been built but it is more along the line of warbirds and scale planes. The evolution engines are powerful but expensive.
I want a good 40cc engine to go in my GP SU-31.
Specifically I am begging DLE to come out with a 40cc because their other engines are reasonably priced, good quality and very freaking powerful.
DLE Are you listening?? Here is another crying out from the wilderness for a 40cc engine.

Schrader

My Feedback: (1)

The ZDZ 40 sold by Troybuilt Models has been around for a lot of years.....good engine, powerful and light weight. It has a rotary valve system instead of a reed valve, so starting can be a challenge if you don't know the quirks of that type of engine, but once you learn, they start as easy as a reed valve engine.

Schrader

Whistling Death

That ZDZ 40cc RE-F3A is nice, with the rear exhaust too.

Tired Old Man

My Feedback: (1)

I believe Fox and First Place make a 2.4. Perhaps D&B does too.

ec121

My Feedback: (2)

If you really into excitement, there is the multipurpose Quadra 40. It can be a airplane engine or a boat anchor. Depends on your hobby.

apalsson

My Feedback: (1)

MVVS also make an excellent 40cc engine.
I believe Horizon sells the same engine in the US under the Evolution name plus a few hundred $$$
Save yourself the $$$ and get an MVVS from Pe Reivers or other MVVS dealers.

aussiesteve

Maybe the Chinese haven't managed to copy anything yet.

I bet there will be a rush of them now - heck, I'll even write their advertisiing for them all

"For we have produced excellent new design product for 40cc plane. Better power than all other competitor, for Champion flyer use"

And the translation

"We have just copied another product (or purchased the same off the shelf bits like the others are all using). Please be a sucker and try it out for us as we don't want to spend money on doing our own R&D- we don't care who ends up with one really"

My apologies to the 2 Chinese companies that DO actually make the ones the other brands copy (Mr D and Mr S)

pe reivers

MVVS still has the 35cc and 40cc
They departed from the 45 (43cc) in favour of the 50 (48cc)

Mike06659

There isn't really a need for a 40cc engine. The DLE 30 would fill the low horsepower end and the DLE 55 would be on the high end. Both are lighter then any 40cc engine out there and more powerful. I had a 71" wingspan yak with a 40cc engine, bought it as a combo and man did it fly like crap!!!!!!! Way too heavy, the DLE 30 would have been perfect.
I'm glad to see the 40cc bricks go away.

Whistling Death

You have much delt with them until this time. True is this?

Whistling Death

Yes there really is a need for them unless plane manufacturers are going to stop making planes that require 40cc engines. The Great Planes Performance Series is a good example.
There is a huge gap between the DLE 30 and the DLE 55. This thread has brought to light a few good offerings ZDZ and MVVS.
I have a 3D plane, Great Planes Sukhoi, in the 15 lbs range that requires a 40cc engine.
The 3D limit on a DLE 30 is at 13lbs.
I had a DLE 55 on it but it was way over powered. I have since removed it and put in on my 20 lbs Giant Aeromaster.
A DLE 40cc is bound to weight less and, like their other offerings, would be very powerful.


BTW you didn't tell us what engine you had.

alpha6061

What about the CRRC 40 kit? Anybody have any luck with that one?

Tired Old Man

My Feedback: (1)

I agree there is little need for a 35-40cc engine. Manufacturers are still not designing kits for gas engines in those sizes. Most (not all) of the kits with less than 78" spans are still designed around glow engines, and gassers still make them too heavy. Realistically there is no true need for 15-30cc gassers. The only reason they are available is because people heard about cheap fuel (gas) and elected to shoehorn a gasser into a plane short on wing area, short on tail moment, and heavy in the nose.

I just finished a 71" plane alledged to be designed for a small gas engine. Using typical installation locations and a fairly light 30cc gasser the plane ended up 12 ounces nose heavy. Eliminating the spinner and moving the ignition battery back to on top of the flight battery, which is located 1/2" ahead of the pull-pull rudder servo, the plane almost balances. So the small plane was not designed around the weight of a gas engine at all. The newbie would have been at wits end trying to figure out how to make the plane balance with all the parts in the usual places. Should fly good though

My suggestion to manufacturers making planes in the 65"-77" wing span range. Add servo wells in the tail of you kits for rudder and elevator servos. Assuring the rdder servo fits at the tail will go a long way towards balancing when using a gas engine. Better still, add a battery platform, or platform mounting facilities, aft of any under canopy rudder servo installations. The flight battery may need to go several inches aft of a center mounted rudder servo to assist the balance. Don't presume your kit will balance with a rudder pull-pull arrangement mounted under the canopy hatch.

One more suggestion. Use people that can count in English. Doing this might finally provide hardware kits with the right number of parts....

pe reivers

Does that include imperial?

Phoenex

My Feedback: (1)

Take a look at the MLD-35.

[link=http://www.rcuniverse.com/forum/fb.asp?m=9656945]Flight video on a 14+ lb plane[/link]

[link=http://www.rcuniverse.com/forum/m_9582932/mpage_1/key_/tm.htm]MLD-35 thread[/link]

w8ye

My Feedback: (16)

Maybe his Abacus was short a few Chinaberry(Melia azedarach) seeds?

Tired Old Man

My Feedback: (1)

Perhaps use an abacus with all the buttons, or have a person that can see them all to arrive at the correct number of parts.

Pe,

not too many kits made in locations using Imperial measure, but those need to be accurately accounted for too.

Whistling Death

Have all the kinks been worked out of the MLD 35 yet. I kind left that behind when I saw one of the preparation procedures was to wash all the crap out of the cylinder so it wouldn't damage the engine when first running.

T.O.M. it looks like gas is here to stay. It is economical and easy to use, well for some of us.
The GP performance series planes is the exception to the rule in the 40cc range, which they are built for. They are versatile in that they can be set up for glow, gas or electric.
Look at how many 30cc planes there are out there now since the advent of a variety of 30cc engines hit the market. Seems like every 50cc plane now has a little brother that will take a 30cc.

apalsson

My Feedback: (1)

Maybe the abacus was a Chinese copy manufactured to meet the criteria for "acceptable production cost"