Carosel43

The BH corsair is very light and pretty fragile, the TF corsair will be heavier but to be honest i think it would be ok with the radial in it. I can only assume they dont recommend it because of either weight (you can get around that by saving weight elswhere) or cooling. but again clever cowling design can fix the cooling issue

Kmot

My Feedback: (24)

[youtube]http://www.youtube.com/watch?v=_ZUE4LIZyDY&feature=channel&list=UL[/youtube]

Carosel43

whoaaaa that radial was howlin! the os sounded great though i must say..ooooheherrr, i have come over all tingly! I will have to get someone to shoot a video of my La7 as the V twin sounds rather tasty!

In other news, i ran up my 400 in its new home yesterday, one thing is for sure, this model will be VERY well powered, hopefully i can prop it down a little and loose a bit of that howl. Either way the model is pretty tatty, so if it flys well i will strip it and give it full recover treatment. For now im going to put the aileron servos back in and it may fly in the next few days

Kmot

My Feedback: (24)

Piccy's please, we need pic's!

Carosel43

The model is waay to tatty for photos! i got it cheap on ebay and its a bit beaten up. as i say if it flys well i will recover the model and sort it out. if the weather holds im going to try and fly it tomorrow

Eulboyington

Hello all radial gang !

After a complete overhaul and re-assembly with quality bearings, my ASP F400 is now equipped with my Aluminium upgrade rear cover CNC machined. The intake gas goes through th crankcase before suck by intake pipes. Tested for 2 hours now with fuel containing only 7% lubricants ( 5% synthetics + 2% castor oil) with 100 % satisfaction. All the internal parts( conrods, camshaft, bearings,etc) are now well lubricate as SEIDEL / UMS-EVOUTION / MOKI Architecture .Easy start with hand.

Videos avaiable now on YouTube :
https://www.youtube.com/watch?v=V7J4m5_Rs9g poor sound but I have not a good camcorder....

Presentation in French now, but soon in english :

http://www.youtube.com/watch?v=GtQP1...feature=relmfu

I think the oil content could be low to 6% without problem.
This engine is equipped with a MICROSENS GLOW 5LP + GLOW BALANCER to connect cylinder by cylinder.

Next step : glow to spark conversion, we have now a lot of place on the back to place the hall sensors.

vasek

My Feedback: (4)

Nice! Are you going to produce some of those back plates for sales?

Carosel43

looks like a busy day for 400 radials! mine flew twice today in its new home. The model is well over powered so im going to go up on prop dia but down on pitch as shes a bit quick! i have a video shot by my young friend Reece and i will edit this together soon to cut out the parts where the camera didnt keep up!

Carosel43

Video! http://www.youtube.com/watch?v=EOPBz...ature=youtu.be

Kmot

My Feedback: (24)

Very nice!

Carosel43

Cheers, the model is looking a little tatty at the moment and im not a fan of the yellow checkerboard. As a result i have ordered some new covering and hope to give it an overall red and black finish. I will however fly the model as it is until the covering arrives from china. I dont want to fly it too much though as the existing covering is not in great condition and i dont want oil seeping in, especially as the engine still hoses oil all over the place. I may have to bit the bullet and get a collector ring

wherewaldo

i have an asp 400 in my kmp t28....the gas tank is above the carb on the engine so it is creating a siphon effect ..flooding my plugs....engine will not fire have a glow system hooked up...does anyone have any suggestions ,,,,the tank cannot be lowered because of the landing gear...i am new with this type of engine ...do i have to take out every plug and dry them out to try again?
i have used the specs for the engine 2.5 to 3 turns at the needle ...but too much fuel is coming in!... thanks for any help

Dad_Roman

Waldo, figure out how to pinch off the line when not in use.

As for the cylinders, have you ever seen those vids of 3-4 guys propping those big Pratt and Whitney's backwards before starting?

If you prop your motor backwards then the first stroke in the 4 stroke system is exhaust. This will dump excess fluids out of the bottom cylinders (IE" Oil on those big ones)

Just my .02

Eulboyington

Hello all Radial gang,

New Aluminium CNC back cover "upgrade" for ASP / SC / PH / MAGNUM F400 Radial model engines, created and tested for weeks by Olivier ROGEAU "eulboyington" . Now the intake mixture run directly into the crankcase for better lubricate ( conrods, camshaft, ball and needle bearings, back of pistons and sleeves) and the intake pipes suck the mixture directly from the crankcase. Fit with absolute no modifications and re-use of original carburettor pipe, intake boots and pipes. Same weight as the original part , Better lubrication and corrosion protection for all internal metal parts as crankshaft, roller and needle bearings, camshaft ans pushrods, you can now use a methanol fuel with only 7% lubricants , ready for a future conversion glow to spark = there is now some place to bore holes for hall sensors in the backplate, I'm working hard on that with RCEXL factory.

The new videos on test bech :

http://www.youtube.com/watch?v=V7J4m5_Rs9g

http://www.youtube.com/watch?v=GtQP1...hannel&list=UL


Avaiable now on Ebay ,sorry, price is a little high because short and localproduction, but this new part it's a piece of cake for our Radial engines !

http://cgi.ebay.fr/Flasque-arriere-u...item2c65fb072a

Olivier ROGEAU
Eulboyington
F17340 CHATELAILLON-PLAGE
FRANCE

Carosel43

waldo, can you get the engine running at all? if not then i suggest you remove the plugs from the lower cylinders and spin the engine with your starter. then replace the plugs and power up the glow. start the engine with the needle fully closed. The engine should fire and run until it runs out of fuel. Then open the needle 2 turns and quickly try and start it. Open up to around half power fairly quickly to get some heat and speed into the engine. if the engine sounds like its not going to stop open the needle another turn and slowly advance to full power, listening for an rpm sag. If the engine is very smoky its probably rich and thats a good thing. i would recommend a classic master 20x8 for initial runs as they are heavy (good flywheel) and allow the engine to unload a bit so it wont overheat. i would not recommend you fly with that prop though as its a little small.

Also is your engine new? if not then when its running lean it out for max power and then throttle back and set the slow run as thats probably where your problem is comming from. Also, final question, what way up do you have the engine? i ask because on mine the carb opening faces down and prevents flooding as the fuel will drip on the floor not into the engine.

wherewaldo

no I can't g et the engine running at all...it won't fire...and yes it is a brand new engine...I have a sonic driver hooked up as well for low rpm...have it hooked up to a 4000 mamp battery ...i pulled one of the plugs out to see if i had a glow ...it did not ...I have the cowl off now thinking of using a glow starter for each cylinder for the initial  start....
when the driver is on this should glow all the plugs ..correct?.....but there not...i wonder if there is a problem with the driver?
and yes i have the carb opening is  facing down
thanks for your advice guys will try to fire it up today ...will let you know...thanks

vasek

My Feedback: (4)

OMG 300 Euro... that's a steep price for a French piece of cake! Didn't you guys just elect a socialist President? Good luck with the sales...

jaav

Cant realy see the point of going through all the hassle of fitting the new back plate. The OS300 Has done many hours of service with the same design as done in the 400...Even the new OS7 cly still uses the blow by lube but OS have fitted a turbine to the intake for a more even fuel miture..Sorry I at $450 AU its better to buy an new engine if it fails..

jaav

Been so slack I haven ran the ld girl up for a while now Prob will need striping now.

Carosel43

waldo, if you have no glow then its very unlikely its going to go. It could be a setting on the glow driver or the battery you have, or your earth cable may not be able to handle the current. I have not used one of the sonic glow drivers before so i cant say how they work. In any case you should be able to get it running with 5 normal glow starts, you can even start it on 3 if you have to then light the others. as its new then try the 20x8 classic master airscrew, it will allow a higher rpm at full power but at low engine load, i would also suggest you not run the engine very rich for a long time as the engine needs to be in its operating temperature window to run in propperly. i would say about 2 or 3 minutes very rich @ about 4000-5000rpm, to make sure its very oily inside, and then quickly lean for close to max performance (approx 8000rpm on that prop,tune for 7800rpm)and then open the needle 1/3 of a turn but do not allow the rpm to drop below 7000. then just run the engine at a range of power settings, dont just leave it at half power for hours. When the fuel is gone, let the engine cool, restart and do it again, lean it off a bit more and repeat the process. I would say 5 tanks of 20oz should be enough on the ground, but it will take longer to fully run in, so dont run full power for more than 15 seconds until you have about an hours running under your belt. Its also important to let the engine warm up for at least30 secondsbefore you give it full power.

My rpm figures are based on 5% nitro fuel with 17% oil and os F plugs.

I also managed to fly mine yesterday, i got about 5 flights in with improvements in compression after each flight. i wasslowly working up the time and checking how much fuel was left so i dont run out. my tank is 24oz (i think) and my timer is set for 7 1/2 mins to allow a minute to land and a further minute for a go round if needed. Following that i still have about 2 mins fuel remaining so if i went to the wire i have about 10 mins flying and a minute to land, but that leaves no margin for error. I am however going to take a pressure tap off one of the cylinders as i get a slight sag when vertical when running no pressure. Prop is classic master 20x10 and the model is a delight to fly at 1/3 - 2/3power with full power available for vertical performance. i will get another video when the opertunity presents itself.

earlwb

I use a pair of hemostats with the teeth dulled and rounded off. Then when I am ready to start the engine I remove the hemostats and fire it up.

earlwb

That is really great and the price is quite reasonable too. There is a lot of machining work done to make the part, so I can see how it would be more expensive than some people light think it should be.
Thanks for making it too.

Kmot

My Feedback: (24)

Have you ordered one yet?

earlwb

Sorry, I am tapped out at the moment. My son's college expenses.

wherewaldo

thanks guys i got it going today ...run fantastic 2and a half turns of the needle  it started right up  up !
the original problem was the glow driver battery was not charged ...I assumed it was but my charger was faulty! need a new charger....
here's a little video that i have linked to this box.  I used a 20x10 three bladed prop it ran 5800 rpm and idled at 1600, have yet to adjust anything.

http://www.youtube.com/watch?v=jn6Qy...ature=youtu.be