Hi

I have a Midwest Super Stinker that is ready to fly with a YS 140 DZ . The plane is well on balance. The total weight is 12 lbs. It is quite expensive to run those engines, specially here in Denmark so I would like to place a GASSER on this one. I never has one before.
The RTF weight for this plane according to spec. is 12.5lbs-14 lbs , so I think I can afford weight. Mine is only about 12 lbs dry RTF. So I have room up to 14 lbs, considering that we have to add the weight of the actual engine, which is 2 lbs. In theory, I could go up to a 4,5 lbs. engine.
I have a short list of several gassers that I think are the most appropriated for nice aerobatics and vertical performance, but I am not sure because I never tried before:

1- DA 50
2- 50 zdz
3- 40 zdz
4- ?

Super Stinker spec.

Wingspan (top wing): 60"
Wingspan (bottom wing): 58.5"
Wing Area: 1240 sq in
Ailerons on top and bottom wings
Airfoil: Fully-Symmetrical, Bi-Wings
Length: 59"
Weight: 12.5 - 14 lbs

I have room for 20" or a little more prop, but I can always place 3 blade anyway.
HELP PLEASE

Ok, here I am again, after much more search.
I think it is a difficult question since seems that everybody has powered this plane with a Moki 180.
I think I will go definitely with a Brison 2,4. I will post the results later if someone are curious about performance. I think it is almost a perfect combo. The engine is only .75 lbs over what I have already, so my flying weight with a gas engine will be almost 13lbs, which is great for this model.

Hi Redrata,

I am getting this plane already built and flown at some point in its life, I want to go gasser also, so far i know of Q-35 at very convinent price i can get, but i have head that this engine is kinda on heavy side for this model, what do you think?, but the guy who responded to same question on different fourm said he has Q42 on his, so now what would you say or anyone else with Gasser in MSS...

Sammy

Skip right to a light weight 50cc. The 40cc will be good but not as good as 50cc. The additional weight of 50cc is nothing.

also put 14-16 oz fuel tank in..A DA-50 will run well over 15 minits with that fuel load. No need to carry more weight in the fuel tank.

If you can get your hands on a BME 44 you would be ahead of the game over all the other engines you have noted. Hi power, low weight. Other than that I would stay with the 2.4. After adding the muffler and igniton, the DA comes in a bit heavier than you may want. Lower wing loadings fly a lot better than heavier ones. The Quadra would be out of the question, IMO, for both weight and power reasons. Quadras were a good engine in their day, but the current crop of gassers beats them out a bit.

Pat

Depending on what you want to do with it, you could also look into an Evolution/MVVS 26.

Well guys this is going to be my first Gasser engine equipped model, so i have look at the cost too, currently i have few other projects on the go and this plane will be something to fly around when i am not flying my propjets or Df jets....I am not a acrobatic pilot, i do few here and there like simple rolls, loops or maybe a snap or flat spin but nothing other then these, i will mostly fly it in stright level cricuits....so for me 50cc is not for me and due to budget i cant afford one also...

I saw Ryobbi 31 for sale, what do you guys think about that in MSS....??

Sammy

I'd get a Brison 2.4. The price is very good.

By the way, anyone know how much less a Brison 2.4 will weigh than a DA50 when you take into account the ignitions, mufflers, and stand off's? The battery and switch is a wash.

Nevermind, I just went to look myself. The Brison 2.4 is 3 ounces less than the DA50. The rest of the stuff is a wash. Both need stand off's and both need a 4 ounce ignition. With the muffler shown below stand off's are needed. Maybe a side mount muffler would save you the stand off's. Anyway I don't see a big weight increase between the Brison 2.4 and DA 50. The Brsion 3.2 is 6 ounces heavier than the Brison 2.4.

I decided to go with a Taurus TS42 2.6ci. It comes with a radial mount and muffler. The distance from firewall to prop hub is very close to the Moki 1.8 shown on the Super Stinker plans.

Here is a pic of my framed-up Super Stinker bipe with a Taurus TS42 mounted. The engine box needed a little trimming to clear the large-volume pitts muffler.

this guy has a 46cc engine on the cheap. 4.5 lbs. Only $240.00 [link]http://www.scottellingson.com[/link]

Just put a fresh MOKI 2.10 in my Stinker..Here are some shots

Well if you really want cool factor, I would go with the new RCS 45, 4 Stroker! It would sound awesome, runs on gas and would be a torque monster! Well maybe, but the sound[8D] And only 3.7 lbs with ignition. Only comes with a strait pipe, don't need a muffler it would just kill that music

Now if they would only drop the price to about 700.00 US, I'm in!

$975.00 ... Ouch! It's cool but not THAT cool.

That's what I say. 975.00.......... that is not cool[]

By the way, the Taurus is one sweet motar, I predict you will have fun

Well, if you really wanted to be SUPER DUPER COOL..then the
upcoming BME 55 which ONLY weighs 2.1 lbs! Of course you would have to wait till May or June to get one.
BME is showing PREVIEW of engine on website..bmeengines..price is listed at $550.

Thanks,

I can't wait to get her in the air. This is what she looks like now.

Wow, I havn't seen that one yet. It's very light for 55cc and the price is about right.

TX

Ya, that BME is cool[8D]. 2.1lbs bare I would guess.

Texan, you have a nice setup there, however keep it as light as possible. A fellow club member had one with a G45 in it. It had good power but was a bit of a handful on landing. I would keep it at or under 16lbs if possible. His was 18lbs[]

Nice work!

The G45 is fairly heavy at approx. 4.9lbs. The Taurus is 3.3lbs (without ign.). I'm shooting for an AUW around 14lbs.

Here is my airframe weight est. so far

Wings 2 @ 12oz = 24oz
Fuse with with tail and TS42 = 114oz
Fiberglass parts= 10.5oz
pilot = 2oz
tires = 5oz
servo 1.5x8 = 12oz
rec = 1.25oz
batt x2 = 7oz
fuel tank = 1.5oz
ign = 4oz

est. total bare airframe ready to cover = 181.25 oz = 11.33lbs (add 2 switches, extensions, fuel lines, control rods, horns, prop, spinner, and covering)

Texan, are you going to lighten the plywood fuse with a Dremel? Looks like alot of excess meat there. You might save a few ounces.

Mrbigg,

I don't want to hijack the thread. My point is that the AUW should come out about right with the Taurus TS42. The plans show a weight range of 12.5 - 16lbs. The wing area is 1240sq in so the loading range is 23.2oz to 29.7oz. At my 14lb AUW target, loading is 26oz. I may take a little meat off the ply if it doesn't compromise stiffness. I want my snaps to snap... not SNAP! I expect the static thrust to be around 25lbs (estimated by my experience with a ZDZ40). I have not run the Taurus yet. So, if someone has direct experience with static thrust output of a TS42 I would be interested.

TX