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Search: Posts Made By: mike gruenwald
Showing results 1 to 25 of 101
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Forum: Gas Engines
04-11-2007, 11:45 AM
Replies: 129
Views: 15,259
Posted By mike gruenwald

RE: DA 50 fade with outside manuvers

those original posts were put in by "fzr1000" not by me. fzr is a guy that Iused to travel to pattern contests with in the 80's before I was old enough to drive. I'm not sure what is going on but...
Forum: Giant Scale Aircraft - 3D & Aerobatic
04-11-2007, 11:35 AM
Replies: 104
Views: 14,206
Posted By mike gruenwald

RE: World Models 28% 330L--Anyone Flying?

the above post which appears to have input by me was not. all posts by fzr1000 have been credited to me. there is an error in the system.
Forum: Gas Engines
04-11-2007, 11:31 AM
Replies: 13
Views: 36,967
Posted By mike gruenwald

RE: gasoline proof sealant?

This post was started by fzr1000, not me. There is an error in the system, every thread or post started by or contributed to by fzr1000 has been credited to me.
Forum: Gas Engines
04-10-2007, 01:36 PM
Replies: 13
Views: 36,967
Posted By mike gruenwald

RE: gasoline proof sealant?

I am looking for something that wouldn't degrade if submerged in gas.
Forum: Giant Scale Aircraft - 3D & Aerobatic
04-09-2007, 08:09 PM
Replies: 104
Views: 14,206
Posted By mike gruenwald

RE: World Models 28% 330L--Anyone Flying?

Where do you get the invisible 1/2" thick foam pad surrounding your receiver?
Forum: Gas Engines
04-09-2007, 08:02 PM
Replies: 13
Views: 36,967
Posted By mike gruenwald

gasoline proof sealant?

Is there anything out there that has properties similar to silicone sealant (in a glow fuel system), but is gasoline proof?
Forum: Gas Engines
04-05-2007, 07:50 PM
Replies: 129
Views: 15,259
Posted By mike gruenwald

RE: DA 50 fade with outside manuvers

By thay, upon consulting with m.g. he first suggested the carb vent line mod to the middle of the fuse. this change fixed maybe 50% of the problem, next suggestion was the reed block mod, this...
Forum: Gas Engines
04-05-2007, 07:32 PM
Replies: 129
Views: 15,259
Posted By mike gruenwald

RE: DA 50 fade with outside manuvers

I solved this problem for a friend after consulting with my long time fellow patern domination machine (at least in the old days) Mike Gruenwald. The bottom line is this, (at least in this...
Forum: Gas Engines
04-04-2007, 05:31 PM
Replies: 27
Views: 1,681
Posted By mike gruenwald

RE: Gas volume question.

remember guys, any oil added to a gallon of gas has to figured in to the total volume. here are the actual TRUE figures

4 oz oil + 1 gallon of gas = 33:1
3.2 oz oil + 1 gallon of gas = 41:1
...
Forum: Gas Engines
03-30-2007, 08:59 AM
Replies: 3
Views: 951
Posted By mike gruenwald

RE: uniflow on gasoline engine?

uniflow tank. There would be one factor that would be more consistent with the uniflow tank, fuel pressure would remain constant upright or inverted, still shouldn't matter with a pump carb, but the...
Forum: Gas Engines
03-29-2007, 08:29 PM
Replies: 3
Views: 951
Posted By mike gruenwald

uniflow on gasoline engine?

Any body ever tried it? Probably no benefit with pump carb, but... Also they might be hard to start because of the physics of the tank?
Anybody? Please only post if you have done this with a pump...
Forum: Questions and Answers
03-20-2007, 09:53 PM
Replies: 3
Views: 720
Posted By mike gruenwald

RE: Chip Hyde Quiet Pipe

I run a chp quiet pipe on my da-50. I'm very satisfied with the performance of this combination. I use a mejzlik 22/8 prop on a chp vision which weighs 16lbs 3 oz. The engine does not load up at all...
Forum: Gas Engines
03-17-2007, 04:07 PM
Replies: 14
Views: 1,338
Posted By mike gruenwald

RE: How's the quality of ZDZ?

I own several zdz engines and they all run great. I also fly with several other guys that own some zdz engines, they also perform excellent. from my experience some guys couldn't make any engine...
Forum: Questions and Answers
03-02-2007, 06:49 PM
Replies: 12
Views: 1,341
Posted By mike gruenwald

RE: Tower Hobbies Glow Plugs

I'm happy for you, and I'll assume you'll post back. I'm well aware some people have to have the last word.
Forum: Questions and Answers
03-02-2007, 01:07 PM
Replies: 12
Views: 1,341
Posted By mike gruenwald

RE: Tower Hobbies Glow Plugs

I agree and disagree, the cheap plugs may work fine in a muffled sport engine fine but, if you ever run a large glow engine like a moki 2.1 or a high performance piped 2 stroke those cheap plugs...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
02-25-2007, 02:10 PM
Replies: 556
Views: 112,643
Posted By mike gruenwald

RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR announced

will the spectrum module and rx work with a futaba 9zap? Remember that the 9zap has a ball joint, swivel, and if I'm correct, non removable tx antenna?
Forum: Giant Scale Aircraft - 3D & Aerobatic
02-05-2007, 12:32 PM
Replies: 37
Views: 3,539
Posted By mike gruenwald

RE: Composite Airframes

In my experience (at least with composite arfs and krills) they always end up at least a couple of pounds lighter than the wood airplnes of comparable size with the same components i.e. engine,...
Forum: RC Pattern Flying
02-01-2007, 11:14 AM
Replies: 13
Views: 1,428
Posted By mike gruenwald

RE: ball raced horns etc. are they worth it?

the mk horns must be used with the mk clevises, even though the screw is smaller than the bearing in the horn, the clevis itself is molded to set right on the inner race of the bearing. the screw...
Forum: Giant Scale Aircraft - 3D & Aerobatic
01-31-2007, 04:40 PM
Replies: 9
Views: 1,021
Posted By mike gruenwald

RE: thrust, incidence, CG?

I disagree, thrust is trimmed for a straight vertical line
Forum: Classic RC Pattern Flying
01-31-2007, 03:49 PM
Replies: 34
Views: 3,770
Posted By mike gruenwald

RE: Bridi Escape Powerplant..

my escape flew great, I replaced the heavy 3/32 sheeting with contest grade 1/16 and also converted to taildragger. all up weight with a webra rear exhaust long stroke .61 and the hatori long chamber...
Forum: Classic RC Pattern Flying
01-31-2007, 02:14 PM
Replies: 2
Views: 870
Posted By mike gruenwald

RE: The real balistic pattern

those sure were fun days. Do you still have any of your .60 size ships. I think I have your old hippo, it was white with yellow and red stripes and it had those weird goldberg retracts (taildragger)...
Forum: Giant Scale Aircraft - 3D & Aerobatic
01-31-2007, 12:12 PM
Replies: 9
Views: 1,021
Posted By mike gruenwald

RE: thrust, incidence, CG?

the first thing to do before you do anything else, fing the mean aerodynamic chord. Then find out where your current balance point is based on the mean aerodynamic chord (from this point on I'll...
Forum: Glow Engines
01-23-2007, 02:13 PM
Replies: 17
Views: 1,459
Posted By mike gruenwald

RE: Oscillating Pump HELP!!

get the cline. I've used them, they work. if you're lucky you may get a perry system to work.
but it'll never work as good as a cline regulator
Forum: 3D Electric Flying!
01-17-2007, 03:02 PM
Replies: 189
Views: 35,789
Posted By mike gruenwald

RE: The new electric YAK 54 from Greatplanes!

I test flew one for a friend a few weeks back. the wings were warped to high heaven, it was too heavy, and while nothing broke it sure seemed fragile. compared to my airfoilz yak it su#%!d.
I'd...
Showing results 1 to 25 of 101
 
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