gas engine in showtime 4d?
 

i'm thinking about getting a hangar 9 showtime and putting in an evolution 26 gas engine. is this a good idea? will the engine be too heavy? too much vibration?

has anyone put a 25cc gas into a .90-size plane before?

it will be my first gas plane. any comments/ suggestions would greatly be appreciated.

thanks,
brian

RE: gas engine in showtime 4d?
 

A gasser in the ST woul dbe interesting as you will be increasing the weight by a fair bit. Why bother to increase the AUW by that much when it affects the flying characteristic? To each his own I guess. I held a F90 with an OS160, its powerful but really heavy compared to mine which had the YS110.

RE: gas engine in showtime 4d?
 

3D flyer has an article (Jan 06 issue?) on this, said it was nice but made it necessary to fly the plane faster. I have this one with a Saito 125, haven't flown it yet but everyone says it's plenty.

They used the tuned pipe no the evo26, the cowl gets hacked up pretty bad since the engine needed to sit at an angle to use the pipe. It might be nice not to spend so much $$$$ on glow fuel.

Maybe the EVO35 on a Giant UCD???? I saw one w/ an os160, the plane floats like a butterfly, inverted 160 w/o regulator and the guy flying it looked like he was ready to use a sledge hammer on it......did nt want to run, he should have known better in my book.

Mac

RE: gas engine in showtime 4d?
 

oh yea, someone said there was something in RC Report, but I dont get that.

RE: gas engine in showtime 4d?
 

Dick Hanson, a regular on RCU, did the 3D Flyer write up. He said it worked quite well. He detailed it in one of the threads here on this model; should be easy to find

In my limited experience with gasoline engines, I think that the ShowTime/Funtana/etc. genre of sporter airframes are a bit light for the increased vibration and weight of a gasser; even a small one. I have a ShowTime with an OS 1.08, and the only advantage I can see of fitting a gasser to this excellent model would be if one flew mainly gasoline-powered planes and didn't want to mess with lugging an extra fuel jug to the field.

But, that's me...;)

RE: gas engine in showtime 4d?
 

thanks for everyone's input. i guess i'll stick with glow. i wanted to get into gasoline and thought that this model may be good for that but maybe not. i dont like large glow engines b/c of the fuel cost....

what would be a good model i can use a small gasoline engine in (like the evo26)? a freestyle/ imac type model.

thanks,
brian

RE: gas engine in showtime 4d?
 

If you can find the Hangar 9 120 size edge 540, ive seen a number with the 26cc gasser and I think the new hangar 9 260.
I do have an NIB hangar 9 edge waiting for a new home...

RE: gas engine in showtime 4d?
 

There is a guy on here who has a Showtime with a BCMA 26 in it and says it flies extremely well. I have the same setup but haven't flown it yet, however I got 10lbs 8oz AUW, and 12 lbs 8oz thrust with a Mejzlik 18x6 at 7480 RPM. After break in however I fully expect to clear 8000 and be well over 13 lbs. P-Diddy is flying on a 16x4W APC and says his plane has more than ample power to perform any maneuver. Hope this helps.

RE: gas engine in showtime 4d?
 

gas is pretty much useless under 40 or 50 cc. glow is better for small planes. i used to want to have a small gas plane until i realized performance would be terrible compared to a cheaper glow engine. if you do it, remember it will be for novelty, not performance.

RE: gas engine in showtime 4d?
 

Interesting opinion, but it is just that, HIS OPINION... And, since he can't speak from experience with gas engines under 40 or 50 cc and I can, let me tell you this: I am one of several people on these forums who have put the 26cc class of gasoline engines on the Showtime and we've all had great success. It is a little heavier, true, but can you notice the difference in flight? Probably not. Mine stands up on its tail violently when I come in low and do a wall, or it can be very graceful and docile during pattern maneuvers. I did not have to add weight to the tail to balance it.

I use gas, glow, and electric, and they all have their places. The fact is that gas engines are getting smaller, electric engines are getting larger, and glow is classicly useful in pretty much all airframes except the smallest and the largest. If you want to know if this combo will work, let me tell you with certainty FROM FIRST-HAND EXPERIENCE, yes it will work and it will work very well!! There is no "novelty" about the way my ST4D performs.

-Pat

RE: gas engine in showtime 4d?
 

all the best videos of planes 65" and under are glow and electric.

im sure yours flies ok, but i still say the real value of gas is over 80 inches.