My Engine Running.

.engine brand and type: Cox Killer Bee 1996
.rpm: 17880
.fuel oil: 20/25/55 ricino/nitro/methanol
.type and size of the propeller: Cox 5 x 3
.others: crankshaft spherical - With Throttle Ring.

21st century stuff, who needs a Vibra-tach!

Well Shoot, it don't need batteries and it fits in your  shirt pocket!!  ( pocket protector)
Looks like even the high tech tachs have a +/-  variances....yeah about 13k +/- a few hundred.

Most folks take cell phones where ever they go more so than a watch these days
the app is very handy. The trick is to set the rpm range close to the actual, since
we can see this engine runs in the 13k range I set the meter to 15k max rpm
by doing so you get finer resolution on the readings, here is the result. The
program has many presets to suit your engine type and rpm up to 50,000 rpm
much better than the 21k vibration gauge all the same it too was awesome sauce
for it's day!

The resolution accuracy is within 60 rpm with a single mic smart phone when the
rpm range is set correctly.

engine brand and type: Cox Tee Dee .09
.rpm: 16500
.fuel oil: 20/25/55 ricino/nitro/methanol
.type and size of the propeller:Aviomodelli 7 x 3-1/2
.others: Throttle ring made from aluminum alloy, home - made.

engine brand and type: Cox Medallion .09
.rpm: xxxxx (the engine is in soft stage) - (first gear)
.fuel oil: 20/5 /75 ricino/nitro/methanol
.type and size of the propeller: Cox Gray 7 x 3-1 / 2
.others: throttle ring Cox, with integrated chamber and muffler.

 Do not like this Post? ... .... I thought it would fill up with information, maybe photos and videos of engines!

Inverted Babe Bee





https://www.youtube.com/watch?v=u1NzqJOa5I0&feature=youtu.be

O my friend must not bee sad !!                   https://www.youtube.com/watch?v=enG_IvdQvWQ        That's enough for noW   And then Fall Down !!

https://www.youtube.com/user/AmpAbuser?disable_polymer=true

getback wrote:O my friend must not bee sad !!                   https://www.youtube.com/watch?v=enG_IvdQvWQ        That's enough for noW    And then Fall Down !!

Hey man! I never knew that you tested that muffler I sent you.. and with the pressure-line! When was that? It seemed to feed fuel from that wedge pretty well.. and cool that you moved the mount around to prove it. Was it tough to start initially? It can be tricky; priming the exhaust through those muffler-pipes.. I assume that they were the wide-open pipe-sets? LOvE the speed-contest vid! Man.. that baby was SCREAMIN'!!!!!!!!

this gets good !, how many good videos to enjoy !! .....

OVERLORD wrote:Inverted Babe Bee





https://www.youtube.com/watch?v=u1NzqJOa5I0&feature=youtu.be

beautiful bonnet or cowl, which gives a great look to the model!

Watching the engine running, from minute 0.23, the engine goes on a low let's say, but that's not normal.
Sometimes it has happened to me that when I start a engine with valve of cane that work, put in a march say "rare". This is due to excess fuel, is it due to a problem between the valve retainer and the valve itself? or exactly what happens to make it work that way ??

It looks like engine goes too rich and only rocks back and forth, i.e. it never goes through TDC.

I have a few cox engine videos on youtube, guess I'll share one here, the Queen Bee with an RJL diesel head;

Not a cox engine but I think this would be nice! Meet my ASP FT160AR four stroke twin cylinder. This is one of it's break-in runs! Prop is a 16x8 APC.




Direct link: https://www.youtube.com/watch?v=sy_E959Ozk0

And now my KK N/V equipped TD .051 showing how thirsty it is lol (Watch the syringe tube lol)



Direct link: https://www.youtube.com/watch?v=h6ohKpgPbRU&t=44s

(Bandit)

Ouch, better be careful with the prop and your finger there!!!  

The Norvel spring starters will fit, I twist the end and make a mating hole in the engine mount (instead of the engine lug like Norvel engines have);


Here is short bench run of the Cox .05RC;

Cox Pee Wee .020 R/C

Cox Babe Bee .049 R/C

Eric, you're an IDOL! ... even the people who accompany you are surprised at your dominion! ... I like how you fly and I'm surprised by your incredible handling, that model looks like a demon and you always have control, that's why I say: you are a genius friend!

JA JA JA That s funny my friend Thank You ! But ; that was the First time i had flown the plane and a TD .049 Screaming at the front end . It was for the Reed Speed of 2016 There were a few that was going to fly but i was the only entry so i WON !! It was profile P51b copy home built 65.07 mph https://www.coxengineforum.com/t9334-reed-speed-2016-winner?highlight=reed+speed ( not the tank Ballon i used a sulliavn wedge .) It damn near screwed me in the ground and fell down at the end (after) of video I have not yet decided to adventure into this years event after the let down of compatition ?!?!? I envite you to the contest https://www.coxengineforum.com/t11255p25-cox-engine-forum-speed-contest-2018#143082 If you enter i will and that will work for me !?!? If you lack anything for C/L flight i probably have it and can send to you . What ya say ?

getback wrote:JA JA JA That s funny my friend Thank You ! But ; that was the First time i had flown the plane and a TD .049 Screaming at the front end . It was for the Reed Speed of 2016 There were a few that was going to fly but i was the only entry so i WON !!  It was profile P51b copy home built 65.07 mph https://www.coxengineforum.com/t9334-reed-speed-2016-winner?highlight=reed+speed ( not the tank Ballon i used a sulliavn wedge .) It damn near screwed me in the ground and fell down at the end (after) of video I have not yet decided to adventure into this years event after the let down of compatition ?!?!? I envite you to the contest https://www.coxengineforum.com/t11255p25-cox-engine-forum-speed-contest-2018#143082 If you enter i will and that will work for me !?!? If you lack anything for C/L flight i probably have it and can send to you .  What ya say ?

Friend Eric, your flight video is really good, I did not know that you had won, although you were the only participant, you see a very fast and intimidating flight !, let me congratulate you and sorry for not being aware of the news, it costs me enough to be able to follow the threads since I have to use the translator to communicate and I do not always translate everything that is exposed here!

I think that you invite me to participate, right?, Yes, I thank you infinitely, also for wanting to offer me material to be able to assemble a complete model, but I tell you; I made it to my 13 and until the 15 years U / C flight, I always used a Babe Bee .049, the models I made were a Baby Bastormer, a Falcon Hunter, a Bumblebee, a Zero, a P40 and I had a lot of fun with them, I had a single engine and passed it from model to model ... once later my father gave me a Red Devil Racer from Cox and I also vole it for a long time .... then start with the radio control, until today However, a few months ago, my friend Fabian, who was with whom we made U / C of children, offered to fly a U / C again, vole a white PT19 and a Zero of balsa wood, both with engine Babe Bee .049 , what happened to me is that I left a lot, getting to decompile, so I think I can not fly more U / C because of the effect it produces, I do not know if it is a lack of habit, but I do not rectify it.
I regret that I pass that, because I also like the U / C, but now I look at it from the outside and with admiration, MIre friend, I still keep without opening these kits U / C, they are beautiful!
Thanks Eric again !!

These two photos are from the year 1986!


These are two kits that I have original in their boxes

A Cox .049 "Product-Engine" given to me recently by Bob (rsv1cox). This is the one that had the spray-bar installed backwards.

-ran today in N. Smithfield, RI-temperature 70 degrees F.
-horseshoe-style backplate with aluminum needle and copper-star reed
-#1 cylinder, standard glow-head w/single gasket
-APC 4.75" x 4" propeller
-Sig Champion "25" glow-fuel
-RPM unknown-couldn't get a reading with my tach

https://www.youtube.com/watch?v=fkZAZmPB_CE

Can you double check that prop looks like a 5x3
Blade shape and prop hub looks like it.