Brisbane control line club

[danny_galaga]

Just ribbing ya, Nev 😊

[facthunter]

That OHLSSEN is Actually a Brown Junior. The first model engine to be mass produced in the USA. About 50,000 were produced between 1935 and 1941. Nev

[danny_galaga]

5 hours ago, facthunter said:

That OHLSSEN is Actually a Brown Junior. The first model engine to be mass produced in the USA. About 50,000 were produced between 1935 and 1941. Nev

Well spotted! I was googling for ohlssen with the ignition set up to emphasise it's 'olden dayness ' 😄

 

No idea why that came up instead 🤔

[danny_galaga]

So, continuing with scratch building stuff I could just buy, heres the other end of that clip. Made from some pen barrels, K & S tubing and a small bullet head nail. I don't want lots of paraphernalia or a giant flight box, so this keeps things about as simple as can be. The glow driver is USB charged and fits almost everything else. Now I can use it on Cox ☺️

[facthunter]

Whip the leads off as soon as the engine starts to save the Glow Plugs.. The blog I mentioned is Adrians Model aero engines. It's well laid out. I only have about 8 engines remaining of My collection having been persuaded to Part with the others by serious collectors who I trust to care for them..  Nev

[danny_galaga]

7 hours ago, facthunter said:

Whip the leads off as soon as the engine starts to save the Glow Plugs.. The blog I mentioned is Adrians Model aero engines. It's well laid out. I only have about 8 engines remaining of My collection having been persuaded to Part with the others by serious collectors who I trust to care for them..  Nev

While it's been a while, it's not my first rodeo ☺️

 

Once started, the glow plug still glows, so I'm not sure how much life I'm saving. But it's prudent to be fairly quick to not flatten the battery. This was super important as a kid when I only had those huge 1.5v alkaline batteries. 

[facthunter]

IF you get the revs up the Plug element gets heat from the combustion plus the Battery and that's not good for the engine OR the Glow Plug. I always used ONE cell of an old 6v Lead Acid Battery which is 2.2 Volts Cut the Hard Rubber case. Money was short. Nev

[danny_galaga]

4 hours ago, facthunter said:

IF you get the revs up the Plug element gets heat from the combustion plus the Battery and that's not good for the engine OR the Glow Plug. I always used ONE cell of an old 6v Lead Acid Battery which is 2.2 Volts Cut the Hard Rubber case. Money was short. Nev

One cell is just a smidge over 2V. 2.2V will actually do in the plug faster than leaving my 1.2V connected.

[facthunter]

I used Much longer Leads than you Might have, and also got the leads off fast. I wasn't hard on glow plugs. No way could I afford those Large 1.5 V carbon zinc batteries that can't be recharged. 

[facthunter]

The Title of the Blog I recommended is "Adrian's Model  Aero Engines" .  Nev

[danny_galaga]

Well, I took the lil model to the club today. It wasn't playing the game. The guys recommended 3 to 3 1/2 turns on the needle valve. I ended up flattening my battery and getting way more raps on the knuckles than I do without a spring start 😄 

 

Went home and pulled the attached fuel tank apart because we all suspected something was not quite right. Crimped fuel pick up or missing reed valve etc. Sure enough the fuel pick up end was kinda squashed. I fixed it up and started it up at home. Running at 1 1/2 turns! A couple more tanks will see it settle in.

 

 

[facthunter]

Can't you put the spring back on? Fuel hose for a chainsaw may be better  with sharp bends. The type used inside the tank. Nev

[danny_galaga]

1 hour ago, facthunter said:

Can't you put the spring back on? Fuel hose for a chainsaw may be better  with sharp bends. The type used inside the tank. Nev

What I mean is, compared to my rotary valve 049 on the other plane, this one, with its ostensibly safer spring start has caused me more injuries 😄

049 fuel hose is way smaller diameter than chainsaw hose. As you can see, it's running now 🙂