Model Aero Engine - Inertia Starter

25cc 5 Cylinder Radial 4 stroke petrol engine and experimental inertia starter

[@VliegerNL]

The sound alone of the flywheel spinning up and then the clutch engaging. Magic

[@jm-mi7kl]

neat how a radial sounds like a radial no matter the size.

[@indridcold8433]

The characteristic popping sound at idle is unmistakable.

[@Avetho]

@Skibidoop Its when the ignition was all the way retarded, when he advanced the ignition the popping went away for the most part, so I'd say a combination of low-rate valve springs from low rev range and perhaps the external pushrod valvetrain that has no valve covers to dampen valve sounds.

[@arandomyoutuber6634]

@Skibidoop I thought it was just because of the firing order

[@benheatherman2839]

That's the coolest way I've ever seen to start a model engine.

[@indridcold8433]

Some early tractors and aeroplanes had that starter also. You had to crank the initial flywheel up to speed and then engage a clutch to see if the engine started. If it did not, you choked the engine and cranked up the initial starter again. They sounded like in the cartoon when Wile E. Coyote started building up the Rpms on his legs before taking off after the roadrunner.

[@BobMueller]

Quite a few WW2 tanks used the same system. I think mostly German and Russian.

[@fourfortyroadrunner6701]

With all the moronic stuff on KZbin and the internet generally, it's very very nice to see something so darn cool!!!

[@d.cypher2920]

Scratch built? Impressive, sir!

[@creast56]

Beautiful engine. What a lovely engine sound!

[@shadetreetrades.jackofall2188]

Truly the best sounding combustion engine of all time!!! THE RADIAL!!

[@Chrisflyss]

Wow, very nice and definitely cool. The inertial starter flywheel seems a bit light weight. Maybe adding more weight to the flywheel will help kick it off with fewer attempts. Still, it's simply awesome! Fantastic work!

[@indridcold8433]

I replaced a cylinder head gasket on an old Ford tractor that started with a shotgun shell or with the inertial starter. The shotgun shell was much easier to start the engine but I had none. When I was cranking up the starter, it sounded like Wile E. Coyote when he was winding up his legs to chase after the roadrunner. The engine on the tractor was a larger inline six engine. But the inertial starter had no problem starting the engine once the rpms were up from cranking it.

[@deezelfairy]

Stunning piece of engineering!

[@worldofwarbirds]

Thanks for this! I've never seen the innards of this process in action!

[@owenlewis8006]

This was scratch built? Incredible!

[@carriersignal]

Very good video!! I have wondered how this system works and why a radial engine when being started sounds the way it does. Thank you!

[@RADIOACTIVEBUNY]

How neat is that. Awesome work, man.

[@mcatech05]

outstanding work, its a real pleasure to see and hear some great engineering in action and clearly its a real passion.

[@michaelcarberry594]

Beautiful work. Beyond cool.

[@trivialinsignific]

great job, nice engine and inertia starter -

[@frederickwise5238]

I thot it was always advisable to shut off the fuel and let the engine "die" that way, so that there could never be any possibility of any later prop "motion" . Safety!

[@jimciancio9005]

That's freakin Awesome stuff my man!!! Wow it even sounds almost identical but a little light on the enertia weight it seems but otherwise it does the Job beautifully! 👏 👏 👏

[@miller7759]

Very Very VERY Cool!!!! If I had the funds I would have you build me one to put on a Plane....Now to see this beauty in a WarBird. Perhaps a Fw-190 would be a good Bird for this Engine?

[@danhillman4523]

Absolutely fantastic.

[@onazram1]

Absolutely Brilliant...!

[@stranraerwal]

Cool and impressive!

[@42lookc]

Bravo, Sir, BRAVO!!!

[@RBAERO]

Beautiful!!!

[@cottonhiker]

OMG I LOVE IT!😳👏👍🏻💪🏼

[@jakemj03]

Good job!

[@jaredkennedy6576]

That is really cool.

[@Buelligan88]

Ignition advance is scary.

[@usig00]

That's adorable!

[@677dm5]

I’d love this as a fan🤣

[@Creeperboy099]

That radial sorta sounds like an F series honda, even the startup!

[@kkteutsch6416]

I expected to see two hands turning a same clever as on a Me109 or a Pt 19 Range engine 😀😀😀

[@lionelmuff577]

Really nice starter. Works great. What kind of shaft did you used?

[@nemoskull2262]

now that is cool.

[@CreeperOnYourHouse]

did you make the engine yourself? How reliable has it been?

[@nemoskull2262]

oh god i want one.

[@nemoskull2262]

i know right? me too.

[@ssn22]

ahahaha nice one !! I want one of this toy !!

[@infernx1subaru565]

I don't think a model radial engine is a toy.

[@franzstigler3200]

@@infernx1subaru565 it is for some people :p. I want to build one of these

[@scotty11782]

When do we take-off

[@nooblamingo9185]

You might need a slightly bigger flywheel

[@Dudeface167]

Why an electric motor rather than a hand crank? That would be more realistic.

[@cspparamesh8060]

Radial engine

[@brettrowland7221]

and who said 3rd time isnt a charm lol

[@akbarshoed]

I'd be playing with this all day, when I wasn't playing with my husband 💋

[@FabianReschke]

Weird flex