GP Super Sportster 55ax (Full Version)

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phornight -> GP Super Sportster 55ax (5/1/2008 6:46:54 PM)

I have almost finished my arf. Just need to pick a pilot and install the radio gear. The 55ax looks mean. I can't wait to break it in. I hope to borrow my friends camera for some picks and maybe a vid of the maiden. Has anyone flown this combo? What should I expect? OS is calling for a 13x6 prop for break in seems to me that is a little large. Any thoughts? Thanks Everyone..



phornight -> RE: GP Super Sportster 55ax (5/1/2008 6:48:08 PM)

Oops I forgot to mention I have done the landing gear modification.



mjg3 -> RE: GP Super Sportster 55ax (5/2/2008 1:35:16 AM)

i am flying this combo and its flys great!!! what landing gear did you use for the mod? any pics of the mod? i am flying mine with a zinger pro 11x 7 it pulls great. [8D]



ChuckW -> RE: GP Super Sportster 55ax (5/2/2008 5:24:27 AM)

I flew by SS ARF with a .46-AX and it was a very fast, fun little airplane. The .55 should be even better. I have flown the .55 on my Revolver and currently have one in My WM Rambler .45. It is hard to beat that engine. I also have the .75-AX on my kit built SS-60. It is an awesome combo.

As for the prop, it does sound a little big. I've run the .55 with a 12x7, 12x6 and 11x8 all with good results. I would follow the instructions for break in though.



phornight -> RE: GP Super Sportster 55ax (5/2/2008 5:03:31 PM)

My girl friend is on vacation. So she has the camera. I have been trying to borrow a friends. As soon as I get a hold of one I will post some pics. The gear came from my LHS. Actually I sent my gf to the LHS for some parts and instructed her to tell the guy what I wanted to do and he sent her home with this gear. I think it said something about kadet on the price tag. Can't wait to hear this thing scream.



phornight -> RE: GP Super Sportster 55ax (5/2/2008 6:32:52 PM)

Just came in from trying to break the engine in. Damn cheap screws that mount the engine to the engine mount. The head came clean off from one of them. [:@] Looks like I will be making a trip to the hardware.



mjg3 -> RE: GP Super Sportster 55ax (5/4/2008 3:35:32 PM)

did you fix it yet? how about some pics.



phornight -> RE: GP Super Sportster 55ax (5/4/2008 5:49:45 PM)

No I haven't fixed it yet. I'm to ticked off at it. I just set it aside. I'm going flying today so there won't be any time for repairs until tomorrow night. Picture are coming I will see my friend at the field today so hopefully I will be able to borrow his camera.



phornight -> RE: GP Super Sportster 55ax (5/10/2008 7:05:28 PM)

Sorry that I have been away for a while. This girl has ticked me off. She has been a real struggle. One step forward two steps back type of crap. The list of minor repairs that I have had to make during the course of construction is amazing. Anyway she is going to the field with me in a matter of moments. Just thought you guys would want to know. Here are some pics. A couple of the gear conversion, you can't really see anything interesting but here they are. Thanks guys and wish me luck



Deathbunny_SG -> RE: GP Super Sportster 55ax (5/10/2008 8:34:41 PM)

Maybe they suggest an oversized prop to keep the rpms down during breakin?



chashint -> RE: GP Super Sportster 55ax (5/11/2008 3:41:36 AM)

Maybe that is what they are doing or maybe its a noise control thing.
I guess there is nothing wrong with a 13x6 on this engine but it seems like a lot of prop to me for a 55 sized engine.
Just out of curosity I would like to know the RPM people can get with this engine and a 13x6.



Kostas1 -> RE: GP Super Sportster 55ax (5/11/2008 6:57:29 AM)

phornight why are you so frustrated with the build?

The SS40 ARF build is straight-forward.
I see you changed l/gear,why this?
For me the stock gear/wheels worked/work just fine!

Don't be afraid running the 55AX at WOT because this little creature can stand way more!
I fly mine almost 3-1/2 years now with an OS 65LA and 11x6 APC...

Damn how quick she is!
2 days before i maidened my Giant SuperSportster with an OS 160FX and APC 17x10 prop.....you got to see this bitc@ flying!

So stable...so stable[>:][>:][>:][>:]

Here are some pics,
Enjoy yours in good life!

Kostas
Greece


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phornight -> RE: GP Super Sportster 55ax (5/11/2008 6:11:26 PM)

I went out yesterday for the maiden flight. I ran a tank of fuel through the AX alternating between really rich and lean. Man the is a sweat sounding machine. Well after that I had to take a break and fly my Easy Sport. That flight went well. I decide it is time for the maiden. I taxied here around for a little bit. The prop has almost zero clearance so there was some ground strikes, had to restart the engine ounce. Got restarted pointed her into the wind eased into the throttle. I have been told because this is a low wing tail dragger to get plenty of wind speed before take off. So I use most of the run way. Well luck would have it at about six feet off the ground the engine shuts off. I didn't have enough wind speed to glide her back in. The wing stalled and she went in nose first. The wing came off like it designed little to no damage there. But the fuse didn't fare so well. The tail section is broken up a little. After a lot of cussing I packed up and went to cry in some beer!! She is back on the bench I hope to have her repaired some time today or tomorrow.



checkmate91 -> RE: GP Super Sportster 55ax (5/11/2008 9:20:17 PM)

I have an OS55 AX in a Black Horse Super Air, similar sized aircraft but less lift on the wing than the Super Sportster, I would imagine. I've tried 11x8 and 12x6 (both APC) and much prefer the 12x6. You'll be able to pull h u g e loops on that aircraft...



Wingwrecker -> RE: GP Super Sportster 55ax (5/11/2008 10:33:54 PM)

quote:

ORIGINAL: chashint
Just out of curosity I would like to know the RPM people can get with this engine and a 13x6.


Funny you should ask as I just got quite a shock today when someone at the feild heard my 55ax running in my new GP Revolver and came over to point an RPM gauge at it.

I hadn't checked the Rpm's since I was breaking it in with my old Nexstar and then it was at around 12,600 - 12,800 with a 12x6 prop at real rich settings. So today with a 12x8 and on the rich side of optimal it was getting 20,400 to 20,600! Is this possible? Is my motor gonna explode or what?

I haven't had this combo in the air yet, but holy God this thing is gonna scream! I'll try a 13x6 on it this week and let you know what I get with that.

Edit: I should mention that I am at 6000 ft elevation and the engine has had about 1.5 gallons run through it to date.



chashint -> RE: GP Super Sportster 55ax (5/12/2008 2:13:56 AM)


quote:

ORIGINAL: Wingwrecker

quote:

ORIGINAL: chashint
Just out of curosity I would like to know the RPM people can get with this engine and a 13x6.


Funny you should ask as I just got quite a shock today when someone at the feild heard my 55ax running in my new GP Revolver and came over to point an RPM gauge at it.

I hadn't checked the Rpm's since I was breaking it in with my old Nexstar and then it was at around 12,600 - 12,800 with a 12x6 prop at real rich settings. So today with a 12x8 and on the rich side of optimal it was getting 20,400 to 20,600! Is this possible? Is my motor gonna explode or what?

I haven't had this combo in the air yet, but holy God this thing is gonna scream! I'll try a 13x6 on it this week and let you know what I get with that.

Edit: I should mention that I am at 6000 ft elevation and the engine has had about 1.5 gallons run through it to date.


I saw this reported on another thread, just can't be that high. 12600 with a 12x6 is pretty salty.



Wingwrecker -> RE: GP Super Sportster 55ax (5/12/2008 2:26:04 AM)

quote:

ORIGINAL: chashint


quote:

ORIGINAL: Wingwrecker

quote:

ORIGINAL: chashint
Just out of curosity I would like to know the RPM people can get with this engine and a 13x6.


Funny you should ask as I just got quite a shock today when someone at the feild heard my 55ax running in my new GP Revolver and came over to point an RPM gauge at it.

I hadn't checked the Rpm's since I was breaking it in with my old Nexstar and then it was at around 12,600 - 12,800 with a 12x6 prop at real rich settings. So today with a 12x8 and on the rich side of optimal it was getting 20,400 to 20,600! Is this possible? Is my motor gonna explode or what?

I haven't had this combo in the air yet, but holy God this thing is gonna scream! I'll try a 13x6 on it this week and let you know what I get with that.

Edit: I should mention that I am at 6000 ft elevation and the engine has had about 1.5 gallons run through it to date.


I saw this reported on another thread, just can't be that high. 12600 with a 12x6 is pretty salty.

Yeah, after doing some searching I found that I'm half-retarded for thinking that those readings were correct. I thought maybe I got a magical 55 I guess! I'm not big on the tech side of engines so I wasn't sure what to expect. I'll get a tach this week and get some real readings.. sorry for the misleading post.

EDIT: The 12k rpms were what I got on the 12x6, unless that guys tach was screwy too.. How do these things read rpms anyway?



Bob Paris -> RE: GP Super Sportster 55ax (5/12/2008 6:37:28 AM)

Ok Guys,
I'm flying the old issue of the Super Sportser and mine is using an old Fox .50, w/Perry carb, turning a Top Flight wood 10 x 7 @ 11,800 rpm, seal level, on 15%, w/caster oil. I'm not sure how my tack is running, and feel it's turning better then this. It flew with a 11 x 7 too, but down a 1K on the RPM. Hauls serious butt and great in windy, turbulant conditions. It's my beater plane, but refuses to die, and I fly it in all weather. Our field is in Central Maui, and we get 15 to 20 kts of gusty winds all the time. So you eather learn to fly in the wind, or your grounded. This is a great ship...fly's up a storm and that Fox .50 keeps on turning. She was up on Saturday, and only two of us showed up at the field...the winds were crazy and gusting. I managed two flights and no broken props either. One sweet flying airframe.
Soft Landings always,
Bobby of Maui
AMA 15016



checkmate91 -> RE: GP Super Sportster 55ax (5/12/2008 10:18:22 PM)

Good for you Bob! We have seemingly continuous windy weather in the UK at the moment. Me and my flying buddy are resigned to being the only guys at the strip in 15mph winds and I agree with you that you either learn to fly in it or give up! And before anyone says that's nothing, we're surrounded by trees in pretty much every direction and that makes for some interesting take off and landing situations...

Regards,
Andy

P.S I'l tach a 11x8, 12x6 APC and 13x6 MAS (as they're all I've got) on the Os 55AX next time I fly if it's of any help. Sea level here in deepest Essex UK...



Bob Paris -> RE: GP Super Sportster 55ax (5/12/2008 10:45:39 PM)

Hay Checkmate91.
Most day's we get good trade winds, and some times they can really blow. Yes I flew, but my buddy had to walk the plane down to the run way...hold it down while I ran up the throttle, and then release it. It just rolls about an inch...and is airborn, and I just head for the sky and pray that the old Fox .50 does not fail me. It can get so gusty at times...it's all I can do to keep it right side up, but you know what, its a kick & 1/2 any way and pure smiles all around. Landing is not as hard as one would think, and you need to keep a bit of power on until your down close to the ground, and I then go to idle cut off once the wheels touch. It never fails me, and as long as my engine keeps turning, she fly's well. Losing power in high gusty winds is kind of interesting...and its always a toss up, if you make it back in repairable condition. So far lady luck has been sitten quite sweet on my shoulder, and I've made a few rather crazy approaches and safe landings in high winds. You need a model that you can lose, with out losing your lunch, and my Super Sportser is mine. I've more fixes and patches on this model then you can imagine, but she still flys...and right nice too. One thing though...you need horse power to fly in winds. So I put a Fox .50 in my plane, and in my Ultra Sport .40, a K&B .61 Twister. Some times, it's just pure power that saves your bacon.
Soft Landings always,
Bobby of Maui
AMA 15016



checkmate91 -> RE: GP Super Sportster 55ax (5/12/2008 10:59:11 PM)

Tell you what Bob, my BH super air is the same, if I lost it tomorrow I'd be devastated but, frankly, it doesnt owe me a penny! In the UK right now we are having to learn to fly in 20mph winds becasue that's what we're given week after week. The funny thing is that last weekend we had temperatures in the high 80s and zero wind and had more bad landings and overshoots than we could all remember, all we did was complain about sunburn and no wind! It's quite ironic that we've gone from being a bunch of whingers about low temps and high winds to high temps and no winds in the space of a week! Rubbish we are ... but seriously landing down wind, down hill is quite a challenge when the wind sock is pointing to the ground... we actually love the high winds where we practice our "parachute" landings...

Regards,
Andy



phornight -> RE: GP Super Sportster 55ax (5/13/2008 5:37:08 PM)

I made some progress with the repairs last night. I think I will have her back in the air this weekend. I still need to figure out what caused the engine to shut off at six feet off the run way. Here are some pics.



Bob Paris -> RE: GP Super Sportster 55ax (5/13/2008 6:07:51 PM)

Hay Andy,
Aint't that the turth...fly in winds for a while...and when it calms down...no one can hit the runway with any class... : ) The same thing here...everyone has a few choice words for the windy day's and we fly, but when the wind dies down to little or nothing at all, no one, iincluding yours truly, can hit the center line on the first half of the runway. Talk about embarrassing yourself...and just how it is. Then it's back to the basics...cutting power on down wind, and setting up for a proper apporach/glide, in a no wind condition. Our field is not that big, in fact it's the old revetment/taxi area for the Marine Core during WWII, so if you are not down early enough, you need to go around or you will hit the barriers or revetments. Ain't life sweet...
Soft Landings always,
Bobby of Maui
AMA 15016



phornight -> RE: GP Super Sportster 55ax (5/13/2008 6:50:01 PM)

At my club hardly anyone flies if it is more than 10 mph. I love it. More skies for me..



Bob Paris -> RE: GP Super Sportster 55ax (5/14/2008 5:38:24 AM)

All I know is that the Super Sportser is a sweet flying model. I have the fist addition of the kit, the old plastic one with the light ply internal frame work. It's got more patches then a pin cushtion, but refuses to die on me. I am it's third owner, and it's second engine. The fist engine was a Satio 72, and it's second, a Fox .50. I've had it for more then four years...and it goes back at least eight or nine years. The cowl still is functionable...ugly as sin...but still flyable. It has "Scotts Tape" all over the place, different landing gear then stock, it's second radio instilation, and different color heat shrink covering from nose to tail. It's about as un-stock as one can be, but its still a flyable airframe. And if fly's very well indeed, patches and all.

I am really surprised at how well it fly's in gusty winds. Yes...it bounces all over the place...but its fully controlable and easy to set right again. Our usual winds are five to ten kts....with 15 kts not unusual...out of the North East. When the Kona's hit...it's a South Westerly wind. Some times the trade winds blow steady...other times, it jumps from one direction to another...with half a dozen 180 deg. wind direction changes an hour, common place. Usually at dawn or close to dawn...the winds are calm...but not always...just most times. Any time after eight in the morning...the trade winds will kick in, and then it's any one's guess at what you will have for winds that day...but I've flown at mid day in dead calm...go figure. So when it's blowing...I just have a buddy carry the model to the run way for me...and after I run up the engine to full power...let her rip or, Say~Lavee...here we go again.

So...if your afraid to fly your latest creation...you will have to wait for your weather. If you have an ol' beater like my Super Sportser to fly...you fly, damn the wind. I get what I get...and if I stuff it in...so be it. Nothing is for ever, and I'm a firm believer...that I own no "hanger queens." I only retire models that are twenty years older or more...and I'm runnen out of ceiling space to hang my models...so fly you will, or die trying.

Just how I see it...
Soft Landings Always,
Bobby of Maui
AMA 15016




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