Jul 22, 2010, 01:40 AM
HELP I AM BEING SET UP!!
maukabud's Avatar
Quote:
Originally Posted by NitroCharged View Post
Bud, I'll be doing the EDF pod on mine. 30mm EDF on 4S. I hope to get to it soon. Just clearing a pile of other builds going on here at the moment.
Ummm...they have a name for that one already....it's called a "V-1 flying bomb":

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Jul 22, 2010, 04:18 AM
3 Strykers,your out !
junglegym's Avatar
Quote:
Originally Posted by maukabud View Post
Any particular reason to use those servos instead of HXT500s'? (and maybe a HXT900 instead for aileron)


Bud, just curious Bud
The only reason is that I've used those servo's before and they are good value. if however you have a preference that you have experience with use them .

Jul 22, 2010, 04:24 AM
3 Strykers,your out !
junglegym's Avatar
Quote:
Originally Posted by maukabud View Post
Ummm...they have a name for that one already....it's called a "V-1 flying bomb":

LOL I'm putting an Argus pod on my swift !!
The neighbours are gunna love the bench tests

V1 Argus Pulsejet what a sound (4 min 52 sec)
Jul 22, 2010, 08:28 AM
gravity always wins !
Flip 465's Avatar
Quote:
Originally Posted by junglegym View Post
LOL I'm putting an Argus pod on my swift !!
The neighbours are gunna love the bench tests

http://www.youtube.com/watch?v=jTsQxwWcqJI

Give you an idea of how much fun we USED to have with flying the OS Pulse Jets & Dyna Jets on control line planes.

Night flying displays (at the Royal Show) where always VERY spectacular - back half of the jet glowing bright red as it roared through the air, long tail of fire out behind it - FUN !

Of course that was before the 'Fun Police' banned them.

Something about the little bit of noise they made and some sort of 'fire risk'.
Jul 22, 2010, 11:37 AM
3 Strykers,your out !
junglegym's Avatar
Quote:
Originally Posted by Flip 465 View Post
Of course that was before the 'Fun Police' banned them.
Something about the little bit of noise they made and some sort of 'fire risk'.
LOL,Bloody Killjoys
Didn't know they used to use them on CL models , they'd look awesome at night
Did you buy the motors or were they home made ?

Jul 22, 2010, 04:58 PM
Registered User
So I maidened the mini swift, damn my impatience, it was far to windy for a beginner. I threw her got her even and a gust nose dived me. Bent the motor shaft. Fotunatley a pretty easy fix. My better judgement will be keeping the swift grounded until better conditions
Jul 22, 2010, 07:29 PM
HELP I AM BEING SET UP!!
maukabud's Avatar
Quote:
Originally Posted by profcake View Post
So I maidened the mini swift, damn my impatience, it was far to windy for a beginner. I threw her got her even and a gust nose dived me. Bent the motor shaft. Fotunatley a pretty easy fix. My better judgement will be keeping the swift grounded until better conditions
Yup, gotta be a windless day for maidens, so you can easily see/feel all the quirks in a new aircraft.
Jul 23, 2010, 08:58 AM
gravity always wins !
Flip 465's Avatar
Quote:
Originally Posted by junglegym View Post
LOL,Bloody Killjoys
Didn't know they used to use them on CL models , they'd look awesome at night
Did you buy the motors or were they home made ?

Quite a long time ago now - the OS Pulse Jet Mk2 (?) dating back from when they first came out for sale in the mid 1950's, where sold through local hobby shops.

Remember seeing them for sale in a Perth hobby shop in the late 1960's.

One was a regular flier at the Perth Royal show for years - VERY spectacular at night - thrust tube glowing bright red hot and a great long, highly visible white / yellow / red tail of flame several meters long following it.
It could be clearly heard over all the other night time noises for kilometers away. - -- FUN !

Think the 'Dyna Jet' was a US made beast of much the same size and power (NOISE) output and about the same price.

Some still come up for sale from time to time on US fleebay, sometimes in 'as new - un-used, NIB condition, for a couple of hundred bucks.

Back then to let one loose in an R/C model was unthinkable - home built R/C sets usually made by the modeler, very limited range, signal interference, valves, 8 foot high ground based antennas, transmitter boxes that sat on a table, rubber powered escapements, etc. So it was C/L or nothing.

Some modelers with the necessary skills in metal work even scratch built their own pulse jets from scratch.

If your interested - there is a ' BMS BAILEY Pulse Jet Engine ' for sale on US fleabay tonight ( Friday 23rd July 2010 ) currently with 19 bids for it and at US $201.
The 'BAILEY' seems to be very much the same as the 'DYNA JET' in size and output. 21-3/4 inch over all length, Weight - 14 ozs, Thrust - 5.5 lbs.
Last edited by Flip 465; Jul 23, 2010 at 09:21 AM.
Jul 23, 2010, 11:09 AM
3 Strykers,your out !
junglegym's Avatar
[QUOTE=Flip 465;15612017]
If your interested - there is a ' BMS BAILEY Pulse Jet Engine ' for sale on US fleabay tonight ( Friday 23rd July 2010 ) currently with 19 bids for it and at US $201.

LOL, Yer I'd love to have one ready to fire up when the neighbors kid plays his Doof Doof ! sub woof'in car stereo with all the doors open while it's parked in the driveway, reckon that'd put some shizzle in his dizzle or whatever they say ?
LOL .


Jul 23, 2010, 02:20 PM
HELP I AM BEING SET UP!!
maukabud's Avatar
Heres a few pics showing my "eyewash cup" vent scoop...only done one so far...bcoz I have to be in the "right mood" to get the second one to match up..lol! The angle didn't come out flush like I'd planned, but oh well.

Notice how I'm missing kind of an important part. Three motors on the way.

That pulsejet video was really cool- had no idea they sounded like that...so...eerie and creepy.


Bud, sans motor Bud
Jul 23, 2010, 08:28 PM
3 Strykers,your out !
junglegym's Avatar
Quote:
Originally Posted by maukabud View Post
Heres a few pics showing my "eyewash cup" vent scoop..
:
Nice job on the scoop

Yer, those V1's not only had the physical destructive power in WW2, the sound of them coming in , then the silence before the impact, really was a sinister psychological weapon as well .


JG
Jul 23, 2010, 11:22 PM
Is my CG correct?
discostu956's Avatar
I am soooo keen to build a pulse jet. Seems pretty simple too. Just need a welder, don't think solder would hold up real well on one of those
Jul 24, 2010, 12:28 AM
3 Strykers,your out !
junglegym's Avatar
Quote:
Originally Posted by discostu956 View Post
I am soooo keen to build a pulse jet. Seems pretty simple too. Just need a welder, don't think solder would hold up real well on one of those
Yer, you might want to re think the solder idea ,LOL

Thermal Pulse Valveless Pulsejet on Diesel (4) (0 min 20 sec)




Wonder what the EPA would say about this toy ?
Pulse jet go kart for sale!!!! -SOLD (0 min 26 sec)


Jul 24, 2010, 01:47 AM
Registered User
i am going to build my 3s version with that motor

http://www.hobbyking.com/hobbyking/s...383&aff=214504

with 15 grams and 60Watts i thought its a good pick between power and weight?
:-)
Jul 24, 2010, 03:26 AM
Registered User
Hi Guys,

Thanks for your replies again. thanks for the links JG too

Got a quick question. I have a Emax FC2812 motor which i was going to use as a spare for my floater jet until my floater hit a house roof and caught fire

Would it be a suitable transfer to the mini swift? Its 3s, 1534kv and will use a TGS Sport 6x5E prop. What you think?

http://www.hobbyking.com/hobbyking/s...idProduct=5423

http://www.hobbyking.com/hobbyking/s...idProduct=7937


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