Pulse Jet Engine 'Red Head' Part 1 (from Hobbyking) That HPI Guy

Here is the Red head Pulse jet engine that I ordered from Hobbyking, I was one of the first to order but one of the last to receive for some reason :( anyway here I show it and explain a little how it works and I also show the spark plug in action. The future plan is to test it on the bench then fit it to a large scale RC car for a beach speed run, lets see what happens :)

[christhbusa]

I've got one of those engines I've had it for about 25 years and I've never replaced the reed valve

[thedknuckles]

Looking forward to seeing more video of this!

[Jeffrey]

6:55 it takes 30KV to arc across one inch of 'dry' air at sea level air pressure. In humid air at sea level it can be 20KV or less.
How well would this engine function at high altitude and high velocity? I think it would quickly overheat..

[Vengeance]

Hello, I am trying to build one myself. Just asking if I could get more detailed pictures and dimensions of the carb

[brianemery]

hmm. i have an original redhead from the 50s and it still has the original reed valve ass. it runs excellent. i have run it for as long as 3min straight. guess they deff dont make them like they used to. as a side note the ignition is an original 20s model t ign coil box!

[EddieSaunders-gq]

Where can I get an igniter system for my hobby king pulse jet

[mhyotyni]

At 3:35,  a spare reed valve is inside that small brown envelope. Not mentioned in the instructions.   

[GeorgeStephen]

Will be interesting to see fired up and powering the 4x4 RC Car

[kreynolds]

Dielectric break down for air is roughly 3kv a millimeter. Even if a device can put out up to 20kv, If a gap is 1mm, as the voltage rises, discharging through the gap will discharge the energy through the gap before it can climb any higher than the break down voltage for that gap.

[cybertree]

Wow, picky picky. A few weld bumps won't affect the performance, because that tube portion doesn't have to be perfectly round/smooth etc. *Nothing a GRINDER can't fix!*

The anodized aluminum tip (which is flawless) was PERFECT, *and that's the only part that has to be very precise*.

[johnhopkins]

does the gauge of steel appear to approximate that of a motorcycle exhaust pipe?

[viikinkimorko]

Did you have fuel pump in this machine

[JamesBalazs]

Should've got two for inwings on a massive delta airframe (you'd have to build it yourself though... At least it would be stable with weight so spread out!

[ronohler]

Is there any current source for these or parts? Hobbyking only supplies the reeds and the ignitor now. I contacted them for sources for parts or manufacturer for delivery in USA, Canada, England The Netherlands or France.
This was the reply"

I have checked for you and unfortunately, the manufacturer nor the suppliers that we deal with
have officially discontinued that item that you are requesting.


Please understand that it will no longer be available
And we are not a liberty to share the manufacturer nor the suppliers info with customer"
January 4 2021

[stranraerwal]

Why don't you read the instructions BEFORE screwing around with metal rings ad wondering what's what ?

[HoverbotTV]

Nice for the price I guess since at my tig rates that would cost about 3-$400. to fab and make properly from scratch just the metal..

[CoyoteFPV]

What airframe are you going to put it in ?

[tikylee]

Si alguien puede ayudarme para saber donde la venden me interesa y le agradecería por la información

[leokimvideo]

My advice is don't purchase this pulsejet. They have a very limited lifespan and often open up along the welded seam along the side. Basically that's a design flaw. There are far better pulsejets in the marketplace, this is a TOY

[L]

Hard rolled, Spring quality stainless would be better that what looks like a carbon Spring steel reed valve, it operates at a higher temperature before beginning to loose modulus.