Search: Posts Made By: Petrovsky
Showing results 1 to 25 of 37
Search took 0.05 seconds.
Forum: Dub Jett Engines Support 04-21-2014, 10:26 AM
Replies: 4
Views: 1,258
Posted By Petrovsky
Hangar 9 Sundowner 50 should be available. A...

Hangar 9 Sundowner 50 should be available. A Kyosho Kelly Reno Racer (Not the F1) is similar and a good place to install a Jett .56 LX.
Forum: Dub Jett Engines Support 04-21-2014, 08:43 AM
Replies: 4
Views: 1,258
Posted By Petrovsky
Good results from an APC 10x6 here on a Sundowner...

Good results from an APC 10x6 here on a Sundowner 50. I'm sure Bob will give you more info.

Good luck!
Forum: Extreme Speed Prop Planes 04-16-2014, 03:21 AM
Replies: 8
Views: 415
Posted By Petrovsky
I use the Fromeco...

I use the Fromeco http://www.fromeco.org/products/05frctnc/ and it has been a wonderful tach for years, however I see "Call for availability"...
Forum: Dub Jett Engines Support 09-14-2013, 01:35 AM
Replies: 5
Views: 793
Posted By Petrovsky
Thanks, that's the plan as soon as the weather...

Thanks, that's the plan as soon as the weather improves. I'll send Bob an e-mail as well.
Forum: Dub Jett Engines Support 09-13-2013, 09:10 PM
Replies: 5
Views: 793
Posted By Petrovsky
No info? Am I in uncharted territory here?

No info? Am I in uncharted territory here?
Forum: Dub Jett Engines Support 07-14-2013, 04:42 AM
Replies: 5
Views: 793
Posted By Petrovsky
Jett-Stream on a diesel

Bob, could you maybe comment please: Is there any data for the use of the Jett-Stream tuned muffler on a diesel engine? Specifically the JS-30 on an OS .32 SX with Davis Diesel head. I would assume...
Forum: Glow Engines 06-07-2013, 10:01 PM
Replies: 13
Views: 824
Posted By Petrovsky
RE: K&V .60 ?

Thanks for all the input so far!The owner has told me that it did come from Kosmic in Italy in the mid 1970's. More info than that he doesn't have. It seems pretty rare then... I suspect that since...
Forum: Glow Engines 06-06-2013, 07:29 AM
Replies: 13
Views: 824
Posted By Petrovsky
K&V .60 ?

Can anyone please provide any further info on the attached engine?It carries the label K&V Italy. Maybe a Kosmic? It is possibly a prototype and appears to be about a .60 size- it has not, however,...
Forum: Extreme Speed Prop Planes 01-03-2013, 09:48 PM
Replies: 63
Views: 4,505
Posted By Petrovsky
RE: Rossi .81 FIRE

Good points from speedracer- I've had exactly the same problems with the Rossi #5 plug. A Rossi #3 solved the problem. Probably in the same heat range as the OS #8. In fact it works well with...
Forum: Extreme Speed Prop Planes 10-10-2012, 12:01 AM
Replies: 20
Views: 2,097
Posted By Petrovsky
RE: Picco 45 DF

No international buyers :(
Forum: Extreme Speed Prop Planes 04-11-2012, 10:53 PM
Replies: 11
Views: 2,531
Posted By Petrovsky
RE: New to me Profi engine

airraptor- Its a work of art indeed and I would love to know how many hours went into the CNC programming! I got one about 2 years ago for C/L .21 Sport Speed and Proto Speed. Mine is timed for a...
Forum: Extreme Speed Prop Planes 02-14-2012, 09:57 PM
Replies: 2
Views: 676
Posted By Petrovsky
RE: Mold making epoxy ?

Jaka you should be able to get Hexcel epoxy where you are. (www.hexcel.com (http://www.hexcel.com)). I'm not sure which part No. you should use for moulds but if you have a distributor/agent they...
Forum: Extreme Speed Prop Planes 03-30-2010, 11:52 AM
Replies: 9
Views: 1,218
Posted By Petrovsky
Speed Records

I posted copies of these record submissions some months ago but see that the ratification has come through, yesterday. The previous 38 year old piston motor record has indeed been toppled and there...
Forum: General Racing Discussion 03-19-2010, 01:53 PM
Replies: 1
Views: 635
Posted By Petrovsky
RE: Cyclon .049?

You can try Doug Galbreath (http://www.the-printer.net/DookCat.html)for the Cyclon, don't know about used though. There is the Profi too which you can find on www.flycontrolline.com

Good luck,
P
Forum: Extreme Speed Prop Planes 11-24-2009, 11:54 PM
Replies: 13
Views: 852
Posted By Petrovsky
RE: some nice speed here

Some engines are easier on the eye than others.....

Enjoy the viewing.....
P</p>
Forum: Extreme Speed Prop Planes 11-18-2009, 07:48 AM
Replies: 500
Views: 32,250
Posted By Petrovsky
RE: Weston Magnum/Nelson Q40 w/ video...195-ish!!!

Am I seeing what looks like "sand blasting" on the head/squish band? If so, a possible sign of detonation......

P
Forum: Extreme Speed Prop Planes 09-30-2009, 12:35 PM
Replies: 3
Views: 779
Posted By Petrovsky
New Model Aircraft International Record Claims - 30 September 2009

I saw this on the FAI list - I-Love-Jets I presume you were there, tell us more please if you can...! It looks like a 38 year old IC record has at last fallen.

FAI has received the following...
Forum: Extreme Speed Prop Planes 05-31-2009, 09:50 PM
Replies: 12
Views: 1,244
Posted By Petrovsky
RE: Re-thinking engine choice? Rossi to what?

Avaiojet,

How about a Jett .60 FIRE LX (http://www.jettengineering.com/) which is much lighter/compact than the Rossi. You could even go up to a Jett .90with probably lighter weight than the Rossi...
Forum: Extreme Speed Prop Planes 05-28-2009, 08:10 AM
Replies: 4
Views: 532
Posted By Petrovsky
RE: Pipe lengths

Greetings MJD,

If you don't get a response here, you may like to try the C/L speed forum (maybe you know about it?) on http://forums.delphiforums.com/flyfast/startwhere a good number of F2A flyers...
Forum: Extreme Speed Prop Planes 04-22-2009, 12:39 AM
Replies: 34
Views: 2,393
Posted By Petrovsky
RE: Carolina Crater Machine

Yes indeed, the required small prop to reach the required "extreme" RPM would be in Control-line F2A territory where single blade props are necessary to avoid inefficient Reynolds numbers. Take an...
Forum: Extreme Speed Prop Planes 04-07-2009, 08:37 AM
Replies: 24
Views: 1,797
Posted By Petrovsky
RE: Prop size OS .25 vrdf

Apart from Eliminator Props you could also try ZZ props (both on http://www.clspeed.com/parts.htm) and Supercool Props http://www.supercoolprops.com/

P
Forum: Extreme Speed Prop Planes 02-24-2009, 09:59 AM
Replies: 34
Views: 2,398
Posted By Petrovsky
RE: A home for my Rossi 53

Also to add to Yukonflyr-

I have both the 45 and the 53, and the 53 seems to be a bored out 45. Both needle easily and run very well, with a nice midrange. I must say the learning curve to...
Forum: Extreme Speed Prop Planes 01-27-2009, 11:41 PM
Replies: 9
Views: 1,033
Posted By Petrovsky
RE: what to do wiht jett 50 FIRE

Check out www.diamonddustrc.com . You can get some good servo information on the Diamond Dust threads on this forum too.

Good luck!
P
Forum: Extreme Speed Prop Planes 01-26-2009, 10:00 PM
Replies: 5
Views: 512
Posted By Petrovsky
RE: Are verticals necessary on a Delta?

... How about a rate gyro, somehow interfaced with split elevons for yaw control as per the B2 etc...... The more complex the systems, the more spectacular the failures.....

P
Forum: Extreme Speed Prop Planes 01-26-2009, 01:13 PM
Replies: 50
Views: 2,825
Posted By Petrovsky
RE: Big block Whiplash - heartache or happiness?

MJD, go for it.....Another plus vote....

I am sure you will be able to obtain safe C/F props (you may have already) from one of the Control-line "D" Speed suppliers like Steve Wilk or Steve...
Showing results 1 to 25 of 37



Forum Jump


All times are GMT -8. The time now is 07:48 PM.