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Search: Posts Made By: andi3142001
Showing results 1 to 25 of 71
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Forum: RCV Engines Support
05-24-2012, 03:00 AM
Replies: 38
Views: 9,365
Posted By andi3142001

RE: Regarding SP series engines, props and airspeed...

Hi,

did you try the prop already?

regards
Andi
Forum: RCV Engines Support
02-29-2012, 02:15 PM
Replies: 38
Views: 9,365
Posted By andi3142001

RE: Regarding SP series engines, props and airspeed...

Yes, I agree with your description.



I dont know the engines temperature, but I do know that temperature depends very much on where you measure it. So its not easy to get repeatable values....
Forum: RCV Engines Support
02-29-2012, 12:52 PM
Replies: 38
Views: 9,365
Posted By andi3142001

RE: Regarding SP series engines, props and airspeed...

One more thing concerning the pitch gauge: As far as I remember there are 2 possibilities (different angles) to attach the gauge. What I did to find out which way is correct is to set the blades to...
Forum: RCV Engines Support
02-29-2012, 12:45 PM
Replies: 38
Views: 9,365
Posted By andi3142001

RE: Regarding SP series engines, props and airspeed...

Hi Michael,

I am glad that you finally managed to put things together. Yes once assembled the whole thing is sturdy and tracking of the blades on my exemplar is perfect.
However, I do not have...
Forum: RCV Engines Support
02-15-2012, 12:56 PM
Replies: 38
Views: 9,365
Posted By andi3142001

RE: Regarding SP series engines, props and airspeed...

Maybe its safer to make a short phone call.

Let us know how it works and which pitch and speed is ok for you :)

regards
Andi
Forum: RCV Engines Support
02-15-2012, 09:49 AM
Replies: 38
Views: 9,365
Posted By andi3142001

RE: Regarding SP series engines, props and airspeed...

The hub from Ramoser is built for a 12mm shaft. The shaft of the 90SP has 7.86mm, so thats the value you should mail him. So what you get is a sleeve with an inner diameter of 7.86 mm and an outer...
Forum: RCV Engines Support
02-14-2012, 05:16 AM
Replies: 38
Views: 9,365
Posted By andi3142001

RE: Regarding SP series engines, props and airspeed...

Well, I do like (big) scale props, thats one of the reasons why I do like the SPs. The prop is for flying, I also sell them.

A video of the Jeep is here....
Forum: RCV Engines Support
02-13-2012, 12:22 PM
Replies: 38
Views: 9,365
Posted By andi3142001

RE: Regarding SP series engines, props and airspeed...

I used a 2blade 18inch with 13inch pitch prop on a scratch built Chesters Jeep with a wingspan of 180cm and a weight of 6,5kg equipped with an 120SP. Figured out the pitch and made a scale prop...
Forum: RCV Engines Support
02-08-2012, 02:28 PM
Replies: 38
Views: 9,365
Posted By andi3142001

RE: Regarding SP series engines, props and airspeed...

The Reynolds number is a dimensionless number that describes some "happenings" around an airfoil. If you have an airfoil with a depth of 2cm that moves with 10mph there are nearly no aerodynamic...
Forum: RCV Engines Support
02-08-2012, 07:58 AM
Replies: 38
Views: 9,365
Posted By andi3142001

RE: Regarding SP series engines, props and airspeed...

Well, to gain max speed I would say you have to select the prop that gives you the highest allowed rpm. In case of the SP thats 5500rpm. (It has been 6000 rpm earlier, and I flew hours with more than...
Forum: RCV Engines Support
02-07-2012, 01:52 PM
Replies: 38
Views: 9,365
Posted By andi3142001

RE: Regarding SP series engines, props and airspeed...

Hi Michael,




I would say it is not as simple. The 60mph is just the average speed this prop can produce. There is a tool called http://www.mh-aerotools.de/airfoils/javaprop.htm where it...
Forum: RCV Engines Support
10-12-2011, 08:05 AM
Replies: 4
Views: 3,159
Posted By andi3142001

RE: exaust manifold

The exhausts from OS have the same thread. If you need a special one, mail to Weston UK. They make exhausts to your specification.

regards
Andi
Forum: RCV Engines Support
04-17-2011, 02:06 PM
Replies: 6
Views: 1,995
Posted By andi3142001

RE: cooling a 120 sp .

Hi,

all you need is a baffle right underneath the engine that leads air upwards to the engine.

regards Andi
Forum: RCV Engines Support
01-24-2011, 12:32 PM
Replies: 8
Views: 3,848
Posted By andi3142001

RE: 22-18 Propeller on RCV 120-SP?

Hi Joshua,

thats an awfully good looking prop on the pics!
Good to hear that the engine runs fine at those rpms.
What I would suggest is to check out the ensemble in the air with an...
Forum: RCV Engines Support
01-07-2011, 10:24 AM
Replies: 8
Views: 3,848
Posted By andi3142001

RE: 22-18 Propeller on RCV 120-SP?

Hi Joshua,

yes I totally agree with you that the SPs are perfect for Scale Flying.;) But I am very interested in your results and would be happy if I am wrong.

regards
Andi
Forum: RCV Engines Support
12-29-2010, 02:22 AM
Replies: 8
Views: 3,848
Posted By andi3142001

RE: 22-18 Propeller on RCV 120-SP?

Hi Joshua,

I remember that the guys from RCV stated somewhere that the rpms shall not be below 4000 at full throttle.
And I am afraid that 20 lbs ist too much weight for the 120 SP. You need...
Forum: RCV Engines Support
11-01-2010, 06:33 PM
Replies: 7
Views: 1,808
Posted By andi3142001

RE: RCV 120 ... need help, carb and loud click at TDC

Hi Rikk,



1. Can I buy a replacement screw for the carb, PN R120825?

Yes I guess they have it at westonuk.
Forum: RCV Engines Support
08-18-2010, 09:01 AM
Replies: 4
Views: 2,620
Posted By andi3142001

RE: RCV 120

With the APC 18x12 my 120SP reaches around 5700 rpm. With a Biela 18x12, which has much thicker blades and is much stiffer, I had 5200 rpm. In the air there is no difference in performance.
So I...
Forum: RCV Engines Support
08-16-2010, 01:04 PM
Replies: 68
Views: 16,901
Posted By andi3142001

RE: improved vibration

Hi guys,

the following story could maybe bring some light to the vibration issue. Some days ago I had a crash. "Landing" was out of sight, damage was minor, but evidence showed that the plane...
Forum: RCV Engines Support
08-16-2010, 05:37 AM
Replies: 4
Views: 2,620
Posted By andi3142001

RE: RCV 120

Hello,
first I would get back to factory needle setting as described in the manual.
Second, for the the first break in remove the cowling so you can be shure there is adequate cooling.
What...
Forum: RCV Engines Support
08-16-2010, 04:45 AM
Replies: 13
Views: 4,306
Posted By andi3142001

RE: Hope for Scale Props for SPs

Today I made the first test runs. As planned I removed the originally prop nut and replaced it by the centering sleeve. Before mounting I balanced the prop and found it well balanced - no surprise,...
Forum: RCV Engines Support
08-02-2010, 02:52 PM
Replies: 13
Views: 4,306
Posted By andi3142001

RE: Hope for Scale Props for SPs

Received my 2-blade hub today, a spinner nut for the 120SP together with a pair of 19,9 inch and a pair of 17,9 inch SG blades. Quality is excellent, did not weigh yet but its low. The parts go...
Forum: RCV Engines Support
05-29-2010, 01:10 PM
Replies: 2
Views: 1,554
Posted By andi3142001

RE: Cold vs. Hot RCV 60SP

Also only a guess, but it could be too lean ;) Start it, let it run for 3 minutes, thereafter set the needles.

regards
Andi
Forum: RCV Engines Support
05-07-2010, 01:34 AM
Replies: 13
Views: 4,306
Posted By andi3142001

RE: Hope for Scale Props for SPs

Just seen that for now the info is only on the german page. See "Propellergröße 16 D" which means propsize 16 D. Pitch range from 6 - 25 inch, propsize from 16,2 - 22,6 inch.

regards
Andi
Forum: RCV Engines Support
05-06-2010, 03:45 PM
Replies: 13
Views: 4,306
Posted By andi3142001

Hope for Scale Props for SPs

Hello all,

recently I talked to http://ramoser.de who make adjustable props for electrics. They upgraded their production line with bigger props, til now only for electrics. BUT they test the...
Showing results 1 to 25 of 71
 
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