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Model Forum / Radio Controlled / Air Models / May 2004Four Star 40 mods n engine
Hi I thinking of building the Four* 40..I have 2 engines a OS 46fx and a Irvine 40.. Which is better for the 4*..I like flying more of a docile plane then a rocket. Also planning on sheeting the LE of the wings n turttle deck. Single servo should pose any problems..Any thought or suggestions are welcomed Thanks Dan E-Mail DBono99@aol.com Hi Dan, The 4 Star is a great model. I've flown them with motors lots less powerful than either one you mentioned. An OS .40 FP for instance. If your reason for sheeting the surfaces is additional strength, it's not needed. Sheeting the LE does make covering much easier though. Also if the turtle deck sticks are on the soft side, they are easily broken in handling. The only chronic problems I've seen with 4 Stars is the landing gear block busting loose from the fuse on hard landings. Some of our club members solve that by using nylon screws to affix the gear to the block. Other members solve it by doing a better job landing. <G> enjoy Happy Flying, Mike > Hi I thinking of building the Four* 40..I have 2 engines a OS 46fx and > a Irvine 40.. Which is better for the 4*..I like flying more of a [quoted text clipped - 3 lines] > welcomed > Thanks Dan E-Mail DBono99@aol.com I had one, can't say it was one of my favorites. Had an TT Pro .46 on it and it was like a rocket, which I liked. Inverted it was too flakey, knife edge to much coupling. If you change anything change the aluminum landing gear. Much to springy, you really have to grease a landing with this plane on asphalt. I like the old GP Sportster and Ultra Sport much more. > Hi I thinking of building the Four* 40..I have 2 engines a OS 46fx and > a Irvine 40.. Which is better for the 4*..I like flying more of a [quoted text clipped - 3 lines] > welcomed > Thanks Dan E-Mail DBono99@aol.com Both of those engines would have plenty of power for the way you want to fly. You can always throttle back!! You shouldn't need to sheet the leading edges. My suggestion is to jump to the 4*60. I think they fly better. They are not perfect aerobatic planes, but do the basics well and are a lot of fun to fly. John VB > Hi I thinking of building the Four* 40..I have 2 engines a OS 46fx and > a Irvine 40.. Which is better for the 4*..I like flying more of a [quoted text clipped - 3 lines] > welcomed > Thanks Dan E-Mail DBono99@aol.com The 4 star was my 2nd (and 3rd) plane. Unless they changed the design (this was way back when it first came out), you'll need a long engine mount for a 2 stroke. As has been mentioned, the landing gear block is a big weak spot in this plane. Use tri stock reinforcement and some glass cloth in this area with epoxy in all joints. Otherwise, its a terrific plane. I have a 4 star 120 waiting in my stash to be built. John >Hi I thinking of building the Four* 40..I have 2 engines a OS 46fx and >a Irvine 40.. Which is better for the 4*..I like flying more of a [quoted text clipped - 3 lines] >welcomed > Thanks Dan E-Mail DBono99@aol.com I would go with the Irvine 40, I flew mine with a Webra Speed 40 and it went like a raped ape, yet flew almost like a trainer when throttled back. The single servo (I assume you mean the aileron) will do the job, if your thinking of flapperons, this plane is a real floater anyways. Definitely beef up the landing gear block and replace the flexable control rods with Sullivan's red and yellow Golden-N-Rod. My next 4*40 will also sport a Sullivan tail wheel bracket. I think it is a very strong design and does not require extra sheeting, mine handled some fairly violent snap rolls as well as some pretty rough landings with out a problem, other than ripping out the landing gear. I thoroughly enjoyed my 4*40 until I trashed it doing a low pass knife edge (it doesn't knife edge very well). I bought another kit and plan on building it to fly when I've had enough of the Extra 300 and just want to do some mild flying. I think you'll be happy with a 4*40. Stephen Spark > >Hi I thinking of building the Four* 40..I have 2 engines a OS 46fx and > >a Irvine 40.. Which is better for the 4*..I like flying more of a [quoted text clipped - 23 lines] > > Stephen Spark Hi Guys Well the 4*40 has the Irvine 40 in it..Just had one flight and it seams to right choice..The engine with an Apc 11/4 prop 10% Omega OS A3 plug. Has more then enough power for this plane..P.S. This plane flwe great on it's 1st flight. Dan I had one with a Rossi on it. The wing just kinda exploded. Man what a sight. > > [quoted text clipped - 36 lines] > Dan >  SignatureMike Gordon AMA 320990 Remember RC Pylon Racing, the ultimate thrill, when Sex and Drugs just ain't enough. |
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