Broken Wings

My Feedback: (20)

While thumbing through the pages of *bay I ran across what looks like the remains of a target drone that used the HB .61 for power.

I made an offer and it was accepted. (cheap)

jeffie8696

Lucky!

Kmot

My Feedback: (24)

Good score! Would this be a foam Mig similar to what also used the K&B Sportster engines?

Broken Wings

My Feedback: (20)

I don't know what the drone looks like.

spaceworm

As I recall, these HB engines were fitted with a bushing instead of ball bearings for the crank. However, I think the standard HB ball bearings can replace the bushing. Mecoa has parts for these engines. I think also these engines were fitted with a Dykes ring which doesn't produice much compression just turning over the engine. Combustion pressures forces the "L" shaped ring against the cylinder to seal the piston. I have an HB .61 and get over 12,000 rpm on a 12-6 prop. Not bad for an older non-Schnurle, cross scavanged engine. Good luck.

blw

My Feedback: (3)

I was given 2 of these engines from a drone contract with the University where I work. Both were in excellent condition and *may* have had one tank of fuel run on each. Both have bearings and not bushings.

blw

My Feedback: (3)

I was given 2 of these engines from a drone contract with the University where I work. Both were in excellent condition and *may* have had one tank of fuel run on each. Both have bearings and not bushings.

jeffie8696

Ihave to wonder what setup the Army used in the target drones I shot at while stationed at Ft Benning in 1981. They were a foam wing and very hard to kill since the vulnerable pieces were actually very small .

AERORICH73

Hi: I am not sure about what type of c/s bearings these engines have, but it would be a good idea to find out what type of fuel was used. My discussions with Dar Zeelon was that FAI fuels were normal. A 5% nitro fuel was ok without adding a head shim. Higher nitro content could do damage. I have a .45, and two .49 engines, and have added two head shims for using 10% nitro all castor fuels. The .45 runs very well. The others are still in their boxes having been pre-oiled.

Rich S.

Broken Wings

My Feedback: (20)

I'll let you know once I receive them. I've never seen a HB .45 or a .49.

I read the manual(s) that comes with my engines... NOT the conjecture posted on internet forums.

I've got several HB's and I've used SIG Champion 15% without any problems. Any "good quality" fuel with some castor oil works fine.

To quote the manual;

3. To break in the engine, any commercial glow fuel to which 20% oil have been added may be used.
Break-in time: 1 to 2 hours
After the engine is fully broken in, any commercially availabe glow fuel, including racing fuel, may be used.

I've used 40-61 sized HB engines for years.

PS: HB was Dar Zeelons first REAL RC engine........

estradajae

I was looking for the comany in Internet...they still exist here in Germany...HB Feinmechanik.....unfortunately seems that they don't want to produce any more model engines =(...they do fine mechaniks as well as machines for building full scale engines.

spaceworm

MECOA http://www.mecoa.com/ has the manufacturing rights, tooling and parts for the HB engines as well as several others. Tey have operating guides as well. Haben Sie ein guten tag.

Richard

NM2K

My Feedback: (14)

I have been on an HB buying spreed of late. I have bought six HB .15 engines to add to the nearly a dozen that were previously collected. My other favorite HB engine is the .61 PDP. I just bought one of those too. I now have three .61 PDP in total. I'll use the .61 engines in some of my old classic pattern planes.

Why so many HB .15 engines? You'll see. YOU'LL SEE!!! Everyone will see. THEN YOU WON"T LAUGH AT ME ANY MORE!!!!

Oh - um - excuse me for the outburst.


Ed Cregger


(The preceding was intended as humorous entertainment. No resemblance to anyone deceased or alive was intended.)

earlwb

Nice catch on the HB engines. They are nice engines.
Many years ago, when I worked at Pro-Line Electronics. The Army was using the Pro-line radio control gear for their drones at the time.
From time to time the Army would send in a large box full of stuff for us to go through, salvage, repair, rebuild, etc. for them.
Every now and then a receiver would come in with a bullet hole through it. Generally servos were Ok for the most part, with stripped gears being the most common failure, or the occassional crase cracked or maybe the mounting tabs broken off.
Usually it wasn't the radio control stuff that failed, but the plane would have the stuffing shot out of it before it crashed. The small planes seemed to be able to take a lot of bullet strikes.

NM2K

My Feedback: (14)

I always intended to buy a Pro Line rig, but I didn't get around to it before they closed shop. A friend of mine flew mostly Pro Line and they were fantastic radios.

Yes, it is amazing how much damage the drones can absorb. I've always had a thing for the drones, even the ones with the four cylinder two-stroke engines. I owned one of those engines for a short while, but I didn't get to the hanger in time on clean shop day and it disappeared.

I've only had experience running one HB .61 PDP engine. It was mounted on a kit built Senior Telemaster and it really hauled it around with gusto. I was always looking for an excuse to buy one or two of them and the classic pattern craze has given me that justification. They are beautiful works of art.


Ed Cregger

Broken Wings

My Feedback: (20)

Ed, one of these engines is going to end up in one of your favorites...

Look Familiar?

NM2K

My Feedback: (14)

Yep, I have a kit or two of that down in the garage, if I'm seeing it correctly. The RCM Trainer 60 is one of my favorite hotrods, that and the RCM Trainer 40 too. I just got up and my eyes aren't awake, so I hope I got it right. But it looks like an RCM Trainer to me. I wish Tower would bring those kits back and an ARF version too.

My RCM Trainer 60 used to scream around the field when being manhandled by a piped OS or Webra 10cc Schneurle ported engine. Because I used the Edson Adjustable Universal Engine Mount, I fitted up an HB .40 PDP one day and was amazed to discover that the .40 was the perfect size for flying that model as a trainer. It even took off from our very rough field with ease.


Ed Cregger

DarZeelon

Rich, BW,


The HB.40PDP (red lettering with a Perry carburettor), actually was my first 'real' engine.

Before that I only had a couple of Cox reed-valve engines and a McCoy, all .049s... I consider them toys.


I am afraid there never was an HB .45 engine, but there was a .50 (non-PDP only).


The PDP engines with the black lettering (and also a black head, I believe), were Blitz models, with a chromium electroplated sleeve, a normal piston ring and pipe-timing.
The 'normal' PDP and regular engines had a Dykes ring.


It brings back memories...

Broken Wings

My Feedback: (20)

You got it right the first time...RCM Trainer 60. I have one of the Great Planes Trainer Sixty models still in the box as well as a Bridi Trainer Twenty.

I have two of the PDP Blitz engines pictured.

*update* I got the engines in the mail today. I dropped the first one (late model) in a pail of glow fuel and it loosened right up. Mounted it on my engine stand and it fired right up. The glow plug was bad... The second (late model) is "moving" so I'll let it soak for a while longer. The (early model) is free as well with a little heat.

AERORICH73

Broken Wings/Fellows: Sorry to say that I had a senior moment loss of memory in my previous message. I keep thinking MVVS engines for some blank reason. My HB .61 was given to me by a fellow mechanic at Horizon Airlines that he found on the ground in Germany while stationed there. The carb was missing; so purchased a Perry carb from Mecoa. The engine really ran very well on the test stand after a thorough cleaning. Believe you are the lucky owner of some fine engines. Would like to hear how your test stand runs went.

Rich S.

enilanzer

Yep thats exactly what you have. I actually have 4 of the target drones(never been assembled) plusboxes full ofthere engines, recievers/servos. I got them yeas ago,as army surplus.

Broken Wings

My Feedback: (20)

I have all three of these running. One may need a set of bearings as it sounds just a little rough. They will all work great in a good "Sunday Flier" kit model. I need to buy mufflers for them all as they didn't come with any.

Broken Wings

My Feedback: (20)

The reciever has four crystals and a rotory switch so you can switch freq. Do you know what freq. they used?

enilanzer

The 4 frequencies are : 25.450 , 25.534 , 38.530 and 41.030

The white transmitter switches between all 4 Frequencies. This is for the FQM-117B "see Pic" most of components to this version came new to like new.


The smaller red/orange transmitter is locked at 25.534. This was for the older FQM-117A. Given that all of my reciever packs for this are mangled, I would bet that this drone type never had a controlled landing.

NM2K

My Feedback: (14)

Just in case you don't remember, the muffler for the K&B .61 engine is "the muffler" for the HB .40, .50 & .61 engines. That is to say, they are exactly the same muffler.


Ed Cregger