Iyer Sir,

The baby bee at 60-90$ is modified high performance engines which can reach 22000 RPM with 5x3 3 blade props & 25% Nitro. Its worth the buy.

A Cox surestart at $32 including shipping is what I use which can reach 18000 RPM with 5x3 Prop and 25% Nitro.  

Even without Nitro and with 6x4 Prop still touched 11000 RPM and is fun to fly slow and steady.

Mills 0.75    

Fuel is here in Jalandhar and you have the engine there Iyer Sir  .

I have got a diesel head for cox that is my only diesel.  

Davies diesel head? Never seen one, only heard of.
Found 2 Cox's dismantled for cleaning maybe 5-10 years ago.

You need to trawl through my junk in lucknow, to find a WenMac, DC Merlin, ED Racer, Russian team race engines etc.

(When i die, bury me deep,
Down at the end of old chestnut street,
Where i can hear old number nine,
As he goes down the line...)
Freight Train, Elisabeth Cotten, circa 1927.
She was a maid in Pete Seegers house...

A while back had requested Anwar sir to start an 'Old Timer' board.
He never told me that he would, but he did.
That board is lonely now.
Maybe some of this stuff should move there.

Ailerons added and Engine test run done once. Successful maiden flight done today. Though Engine reed valve was not at all in its perfect performance. Engine was firing away with heavy hiccups. Videos follows.

http://www.rcindia.org/gas-glow-nitro-planes/build-and-fly-log-airboss-kit-sig-models/msg175279/#new

Pretty Woman 

@sundaram sir,
Second Sanjay sir on that.
How i wish i was there.
Know from experience that Coxs, old cars and dogs benefit from my tender touch!

@ Sanjay Sir  

Iyer Sir Thank you very much , It would have been our privilege to have you here and gain from your vast experience  

www.youtube.com/watch?v=im-MqwYf5sc

My Thunder Tiger GP 0.07 had a huge starting and inconsistent running issue. I had almost decided to sell it off at a throw away price or gift it to someone. However every time I used to hold back myself from dumping this engine thinking who ever gets it going to curse me forever.

Had nearly an year of battle with this engine of inconsistent running and unable to resolve the needle settings between a Flooding in idle and lean engine cut out at the Full RPM . I could merely get this engine to run for only few mins every time before it used to cut out on me either due to rich or lean and some times exhaust flooding. I was not able to home on to a particular needle setting. I was going up and down between a 2.5 turns to 4.5 turns of High speed needle. suffered innumerable painful attempts to even get that first ignition of engine.

After reading experiences of many online and few modification to the engine now the engine fires without missing a beat between 3500 to 15500 on a 6x3.5 on a GF Nylon Master airscrew prop. High Speed Needle 3.5 Turns full RPM.

Modifications to the engine are

I have replaced the exhaust pressure Nipple to a bigger dia brass nipple from a 3 way fuel line connector.

I have Dremel grind-ed the throttle spindle opening at the Carb to a bigger dia equal to the venturi opening.

Added a silicon fuel tubing to the HS Needle to make it air tight and more tight needle as it was getting loose after four turns of opening to start.

Drilled a small 2mm hole in Exhaust before the muffler to drain the unburnt Caster easily.

This however always needs a starter to start but within two flicks with a starter after Priming it starts consistently now. Hand starting is still not easy for me.





Rich setting bench run.

www.youtube.com/watch?v=rhAQ9F0-NiU

At optimum 3.5 turns of HS Needle this engines fires an amazing 15500 RPM on a 6x3.5 Prop with just 10% Nitro Fuel. Impressive!!!.  This one is going to replace the Cox from the Idol.  

Guys interested in 1/2 A glow engine one guy in ebay.in has posted 10 Engines Cox Sure start for a cheap price. At Rs 2100 a piece with starter spring and a prop is a good deal. Already ordered a three, two for me and one for Sorav.

http://www.ebay.in/itm/Cox-0-49-nitro-engine-for-small-aircraft-gliders-buggy-car-and-helicopters-/191503518952?

Mine already dispatched and on the way. will post further review update on quality and reliabilty once received.

Check it out.

Hi sundaram,

Do you know any LHS stocking/selling .07 or .09 glow engines ?? do you have any experience with UMS make engines .

Sahil

Only Sharma Models have a 1/2A Size diesels. I have heard UMS Engines are good but have they got a 1/2A size???

No, they have UMS 25 for 2215.2/-, i contacted then will see how it goes.

http://www.umstech.in/product_detail.php?prod_val=UMS%2025

Quote from: sundaram on February 09, 2015, 11:30:37 AM
Guys interested in 1/2 A glow engine one guy in ebay.in has posted 10 Engines Cox Sure start for a cheap price. At Rs 2100 a piece with starter spring and a prop is a good deal. Already ordered a three, two for me and one for Sorav.
http://www.ebay.in/itm/Cox-0-49-nitro-engine-for-small-aircraft-gliders-buggy-car-and-helicopters-/191503518952?
Mine already dispatched and on the way. will post further review update on quality and reliabilty once received.
Check it out.

No one is interested in a Cox 0.049 Engines? No one has bought it even after my last post. Here is mine received today photos posted. They are not the Hobby King ones but they are the Canadian sure starts Cox 0.049 absolutely brand new with starter spring and a three blade prop.

You may not get it for this low price of Rs 2100/- including shipping from either Hobby King or Canadian Cox store.

Buy it guys before you miss them. I am buying one more.  

hi sundaram,

what size fuel tank are you using and can 50ml syringe do as tank that's nearly 2oz in tank size ?

and i have a 500ml 5% nitro fuel very old (couple of years) will it work or its best to make new fuel, with 5x3 prop expected rpm ?

5% Nitro.  5x3 prop should give 13000-14000 on sure start.  But fresh fuel only. Old performance may deteriorate.

okay and what about the syringe tank ? my cox is jammed will a spray of wd40 do or how to free it ?

Thanks

Sahil

Just plain methanol will release it after being soaked in it.

got it

Sundaram rcd has AP061 and AP 091 on sale, which one is good ?

One more 1/2A glow model with TT GP 0.07 successfully scratch built and flown

http://www.rcindia.org/gas-glow-nitro-planes/papillon-build-from-scrap-and-plan-build-for-6th-sweepsakes-2015/msg235835/#new



www.youtube.com/watch?v=3L1sGEij-x8

@ Sahil AP 0.09 is definitely better. I have used Gusty's Engine and was very happy with the way it performed. It could easily start in a hand flick and had good power too.

Scratch Build your own 1/2A starter.

http://www.rcindia.org/self-designed-diy-and-college-projects/scratch-build-12a-engine-starter-from-size-500-dc-brushed-motor/msg236732/#new