OS 40 FP First Run 

A reminder of the good era engines.

I still have mine. Bought in Orlando, FL back in 1986. It flew in several models, a Great Planes PT-40 amongst them and even survived two major crashes, on one occasion the firewall ended up level with the ground. Took me a minute to realise the engine was ynder ground 😂

Gen II ABN 40 FP - Top Flite Power Point 11x4 @ 12,435 rpm / 6.54 lb. thrust, .81hp - left rich 1st run / 47 mph prop pitch speed 15% nitro / 18% oil blend

Also my first engine; on a Great Planes PT-40. First run would have been June 1995. Wish I still had it if only for nostalgia's sake. 😊

The FP series has been the best glow engines I've ever owned. Dead reliable, stupid simple, starts on the first flip, and doesn't complain. Sure, they're no powerhouse, but they'll make you smile every flight

@13:50. Thank you David, I can stop worrying now. I have an identical fp 40 and i was one of those many people that didn't expect that noise. My exhaust deflector made it even more noticeable. its removed now. I would rather hear an OS in its natural state anyway. :) Anyway. Thanks again David. You look like you are doing well. I hope you are doing well..

Since my first engine I have collected a FP 40 ABN and a couple lapped steel 25s and a lapped 20. All of them are very nice running engines. I plan on trying the carburetor from the 25 F SR that is twin needle.

The 40FP lapped steel sleeve was my first engine as well. Mine was inherited by a friend after he passed away but still interesting how so many other people had this as a first engine.

Thank you, a very nice engine indeed, still have one and they just run perfectly. Great video

Thats amazing thankyou so much ! You do killer work! Cheers

These are "fly it with the first tank" engines. Good to see that it was first run by someone who know how to treat it right.

Hello David I am a big fan of your channel for a long time. Unfortunately I don't have any FP 40 engines but I do have 2 LA 40's 1 on my Kadet lt 40. And another in a Kavalier that I built. And they have been flawless for me my Kadet I have been flying since 2017 and still runs Great.

Like many, the FP was the engine we learned on and ran in our youth. Im currently running an FP 10 on a House of Balsa Chipmunk and an FP 25 on an RPM ( OK Pilot) Barn Stormer. Some people give them a bad rap, but I disagree, these are great engines. Luckily they can still be found on ebay for reasonable prices. They are good little workhorses. Thanks, great video!

The most important thing for a beginner is that it keeps running.

FWIW, I just read an old timer priming tip for one flip starts is to only finger choke the carb on upstrokes and let finger off after going past top of stroke. The idea being the choked downstroke pushes the fuel back up the line.

Yes Dave they are great engines! I have two of them one on and Aerostar 40 and one that has never been run.

Good Stuff! Thanks again David.

I've had at least 8 of those 40FP and a few .25 FP engines and all were super reliable .

Stunning engine fir its time. Super quality in casting and reliability. The idle will come to you as you lean out the high speed to peak power as this invariably affect the low speed mixture. Then some fine tuning of the air screw and she’ll be a snappy engine. Agre the LA series are ugly and cheap looking and tgat all blue paint has no place on a glow engine. Would love to se a full power run once she’s fully broken in. Great video and thank you Dave for sowing off this little gem!

Nice little engine Dave very well done❤🦅

Agree David, the FP series was levels above the LA series. Though from what I have read the LA series was popular with the control line fliers.

Super smooth!

I have allot of use with the 60FP with an Ultra Sport, very reliable great engine

9x5, no muffler, choke till it pops, fire up lean it out click back 60 seconds and pull the fuel. Let it cook completely overnight. Repeat. Switch to flying prop 11x4,10x5 install muffler. Start and adjust to running slightly rich. Go fly and break in the engine the rest of the way.

The liner is flash nickel plated engine. break in is easy as you presented.

The thing I learned on this video is: adjusting the high and low speeds is only a matter of 3-4 clicks either side of peak RPM.

Definitely top notch OS quality.

Excelente video. Yo hice algo parecido, solo me falta comprar el contador de revoluciones. Gracias.

love

Great video, where did you get the tank mount?

Hi thanks for the excellent video please keep making more .. my question is what is the difference between the FP and the FS 40 engines of this vintage? Also the SR 60 .. thanks

Hello David, love to see your videos !! Just a question please, is there ani idle screw on a LEO .52 glow engine? Thank you

sweet

What fuel are you running? 2 stroke oil/gas mix? I’m new to this hobby.

Say, could you tell me what kind of fuel I need to be running and one of those OS40 motors? What you're running there