Carosel43

i think it will work. I would be trying to keep it to the low end of their weight range though, 27lbs seems really heavy

SPACE COWBOY

That's kinda what I thought, too, but I'm no engineer! I trust his knowledge, though. What the heck! No guts, no glory, right?

keathebch

Could someone tell me where the starting settings are for the low speed needle, Thanks

Carosel43

Just fire it up and go from there. Its impossible to set it without the engine running so give it a spin and find yourself a long screwdriver

SJN

Yea, the ASP carp is not really a masterpiece in engineering :-)

Set the high speed needle about 2,5 turns out. Open the throttle so the gap in the opening in the throttle body is about 1mm.
Then hook up a piece of silicone onto the fuel inlet. screw in the low speed needle valve completley in. Blow into the slilicone line, and begin to loosen the low speed screw/needle until you can begin to feel air going through the carb. Here it should start and run ok to get it adjusted.

keathebch

I was cleaning and screwed the needle valve in until it became un screwed and the o ring showing. I then screwed it out until it stopped and back in about 4.5 turns is that close you think?

Kmot

My Feedback: (24)

Your carb is all wrong. It is missing the correct mounting section, and probably is sucking air and will be hard if not impossible to tune properly. It should like like this:

Kmot

My Feedback: (24)

What up Rev!

grassie

My word! It good to see there is still activity around here!
My Stearman still lives. It weighs 22lbs and flies like a peach. I had a dead stick and could not make the runway. Needless to say the under cart did not survive the rough terrain.
I decided to strip and redo the covering and fix the landing gear mounting plate. The tail section also broke lose. well. enough of that. I have an ASP 400 on the nose. It quit because it had a lean run. I changed the prop and never checked the settings again. I also managed to make a new collector ring.

SPACE COWBOY

WOW! I love the N2S-3! Who was the original MFG. on yours? Aeroworks? The engine looks like a perfect fit! Any videos of it flying? My Dad was a U.S. Navy Seabee in WWII, and flew the N2S-3 on Guam as an observation plane. I'd love to do one in his memory, if I could find one to fit my ASP-400 on! Looks GREAT! Nice nose art, too! Blue Skies!

grassie

Hi Space Cowboy. Yes it is a Aeroworks Stearman. I bought it secondhand years ago. I think the Ziroli 77" is a good fit for the ASP400. Unfortunately I dont have a friend that can video my flights. Hopefully I can find somebody to help when it is ready this time.

grassie

nige69

I will agree the Ziroli 77" Stearman is a good fit for the ASP 400. I haven't flown mine yet with the ASP fitted. but here is a couple of photos. Still have some cosmetics left to do, but want to wait till after the maiden

grassie

That looks super! I make my own decals. Finding someone that is willing to do a small job has become impossible here where I stay in South Africa. So I went out and bought a little Silhouette vinyl cutter. I like the landing gear you fitted. I bought a Ziroli Stearman 87" short kit with Sierra landing gear, so guess what my next project will be. I know this has been covered extensively here, but I also made a new collector ring using copper pipe. It the one in the pic with the engine fitted. I must say, if I look at the background, it could have been somewhere in South Africa!
What size prop are you planning on swinging on the 400?

nige69

Thanks Grassie

I'm running a Keleo exhaust ring on mine. They sound incredible once you put a ring exhaust on them .

Not sure which prop at this stage. I have run it up with a 21x12 and still getting about 5600rpm (on gas) at 650metres above sea level. which should provide enough thrust, but I also have a 21x10 that will hit 6000rpm.

The photos were taken at one of our local fields about 20km south of Canberra in a town called Tharwa.

grassie

We are a tad higher here in Pretoria, 1440m, I think. I am swinging a 22 x 8 and the engine is very happy with that.

grassie

@ Kmot. Sir, in your opinion, do I need tank pressure for the 400?

SPACE COWBOY

Lookin' good guys! I guess I'll have to find an Aeroworks Stearman! (or a good used Ziroli!) Wish me luck on finding that "Needle in a haystack!" It's just a shame that almost all the good ARF's are gone, and most of the good builders, too! Alas, I'm not a builder, but I've gotten pretty good at repairs! I did finally get a Keleo exhaust ring from Adrian at CH Ignitions (GREAT guy and a GREAT exhaust!) My engine has his gas conversion ("Petrol" for our friends down under!) too! I have yet to run it, but I did oil it up nicely after checking it over. I'm hoping to have it running soon, and on something flyable soon after. Any idea on fuel tank size and flight duration? I understand that it's pretty thirsty! Thanks for the encouragement, and Blue Skies, guys!

SPACE COWBOY

Does anybody have an idea on how much power the gas conversion ASP 400 has, as opposed to gas two-strokes? I'd like to know what to expect it to perform like. Is it equal to a Zenoah G-45, or something else I can relate to? I'm pretty old-school when it comes to engines, and I don't know anything about DLE, EME, or any of the Chinese gas engines that are popular these days. My experience is limited to OS, Saito, Enya, Quadra, Zenoah, Precision Eagle, Brison, 3W, RCS, ZDZ, Air Hobbies, and the like. I guess I'm showing my age, here!

nige69

When running on glow-nitro these things are pretty thirsty. I didn't run mine on glow ignition at all. The first couple of runs were with spark ignition on methanol with the original carb and the engine wasn't too bad - about 400ml (approx 13.5oz) for a 15 minute run with varying revs. This was 15% oil / 85% methanol. Once I switched over to petrol/gas a 15 minute run uses about 150-200ml (5 - 6.5oz) so a lot more efficient. I have a 16oz tank in the Stearman.

I went with the ignition from Adrian (CH Ignitions) and the carb, manifold and little electric pump from Morris Mini Motors, then the Keleo from a store in Australia where I was able to grab the last one they had

SPACE COWBOY

Here's mine!

Very Cool! Thanks for the info! I'll be running mine on gas, so it's good to know.

SPACE COWBOY

Mine is the older, non-polished version. I haven't opened it up for a detailed inspection, but I will before I run it. The gent I bought it from said it ran great, but didn't have enough power to suit his flying style. I'm OK with scale flight and mild barnstorming areobatics. I'm not a 3D pilot! Was there much power loss going to gas?

the Wasp

My Feedback: (1)

if you burn glow fuel do yourself a cheap favor and use an OS Main Valve "Assembly", I had the Magnum 180 4St I bought for my Son and the Main Valve was sickly loose. the OS Main Valve "Assembly" is a screw in fit that is much tighter

Jim

Kmot

My Feedback: (24)

I'm loving your Stearman's, boys!!

Grassie, in my opinion tank pressure is not "required" because as delivered, the ASP 400's have open exhaust pipes and no pressure fittings.
That said, in my opinion running tank pressure will certainly do no harm, and on my ring collector I made I added a tank pressure tap.
Space Cowboy, I thought I saw your radial up for sale not too long ago on RCG. Did you have an extra one?

BTW fella's, now that Sanye has gone belly up, our engines are collector items. Take good care of them.

SPACE COWBOY

Kmot, Good to hear from you! If anybody knows these engines, it's you! Yes, I did put it up for sale briefly, but I had second thoughts and pulled it off. I guess we're either crazy, or ahead of the curve! I just know that you can't beat the sound and looks of a radial! Being the only radial that I could afford, I jumped at the chance, knowing it might be my last! I'm glad I did. Good or bad, I'm in it for the long haul! These engines have a mixed reputation, and I guess that goes with the territory. We're an oddball group, according to many I guess, but who cares? If you like it, that's what counts! Let the "RC snobs" take a hike, I don't care! I'm just an old Cowboy that's enjoying the hobby my way! Blue Skies, Guys!