Small capacity engines

[dizzypanic]

Im wondering if nayone knows of a manufacturer or distributor of 1/2A sized engines (0.020, 0.047 cu in).

I know there is the excellent PAW range but I was thinking of something like a cox .020....

Any ideas or am I to trawl ebay for a 'good' example?

[Mark Lubbock]

If you don't want a PAW (not sure why, they are truly excellent engines, unless you don't want a diesel) you are probably stuck with Ebay & a Cox.

Incidentally, .020's are known a 1/4A & .049's are 1/2A. There are many good S/H ones about, not to mention the abundance of new Surestart .049 for less than a tenner. All the Cox engines are excellent as long as the fuel system is kept extremly clean. They are also very noisy & the available silencers do cut the power output considerably.

Diesels have the advantage of being able to swing a larger prop & are quieter, use less fuel (more expensive though) & don't need any starting gear.

A few years ago there were quite a few small replica diesels produced, mainly from Russia, ED Baby, Frog 50, reduced ED Racer .5, Bambi, Kalpers & reduced Mills to mention but a few, some were comissioned & imported by Dave Banks, but I don't think they are available anymore. They do pop up on Ebay at times but are getting expensive. DC Darts, Merlins, Wasps & Bantams crop up often also.

You could have a go at making your own, I did exacltly that when I lost a Dart & couldn't replace it (pre Ebay days) & designed my own (ML Midge). The design was later published & many have now been built worldwide!!!

[Ernie]

Hi,Dizzypanic,

There is a Russian company called Norval. I know they produce a 049, 061, & 174, maybe others. I think they are being taken over by Sig, so maybe you could try there

ernie

[dizzypanic]

Cheers for the advice chaps, I thought that might be the case. I think diesels are great so i'll probably go that route when i've saved a little cash. As for making my own, I wish I had access to a lathe as I have the skills but not the kit!

If anyones wondering, the engine is for the DH-02 plan by Gray that was published in RCMEvol42 issue4. its a 20" span fiction scale drone with an A.U.W. of ~7oz.

[Former Member]

[This posting has been removed]

[Allan Jordan]

 Hi Dizzypanic, Buy BRITISH get yourself a PAW !! They really are great engines..

[Myron Beaumont]

The original Mills's were 0.75 cc & 1.3 cc .I think Boddo has come up with a 0.5 cc version   Don't you remember Eric I thought you were weaned on them like me OOOh ! That smell !      (better than hot chargers & ilpos --- here I go again -Sorry ) I used to buy all my "dangerous" fuel constituents over the counter including Amyl Nitrate or Nitrite - A powerful heart stimulant apparently ! ( I darent mention H&S so I wont -  AGAIN ) AND I carried a penknife in my pocket for years And---and -and--------------

[Mark Lubbock]

Hi again, 

The DH-02 is of similar size & type to the old Sharkface design (Eric Clutton, I believe). This used a .8cc engine & single channel radio, but now small lightweight multi channels are available, many have been made with 2-3 channels & engines up to 1.5cc, with which it becomes a very 'hot ship'!

Did the DH use a small Cox originally?

Remember, most .5cc diesels weigh over 2oz, so you will do well to achieve the 7oz with one of these & it will therefore fly faster & you may want to strengthen the wing spar. If you are using 2 channels & want a diesel, I would look for a DC Dart or PAW 55, but if you want a throttle you are really stuck with the PAW (no bad thing)

[dizzypanic]

The DH plan shows a cox, i think the weight at the time may have been important. However as you say, modern radio gear should compensate for the heavier engine..... Hmmmmm I think i'll buy myself a spanking new PAW for christmas! 'A hot ship'-this should be fun... Point of interest, amyl nitrate is available over the counter as 'poppers' in ahem, shops specialising in recreational underwear etc. The fumes are inhaled to produce mild euphoria and a lowering of blood pressure according to wikipedia. Strange world isnt it?

[Ernie]

Hi

Why not consider a new Boddo mills? There was an article about them by the whitaker chappie recently in RCM&E. They really are little gems. Try this [email protected]  for some tttilation

ernie

[Allan Jordan]

 Hi dizzypanic, What a splendid idea, a nice new PAW diesel for Xmas, you wont be sorry I'm sure !!

 Think I'll show your posting to my wife... might just give her an idea... I would like the .60 size one ..

 Enjoy your Xmas present mate( it will last for ever) !!

[Steve Hargreaves - Moderator]

A bit bigger than 1/2A but theres the AP06 from Perkins& the GP07 from Thunder Tiger (via Amerang) might be a bit big for a 20" model though. Not had either of them but i hear they are gorgeous motors....