|07-25-2008, 02:51 PM||#1|
RCC Junior Contributor
I am: Tom G
Join Date: Apr 2006
Feedback: 0 / 0%
Total Props: 0
New webra experience
Remove this ad - become a site supporter!
Just sharing my experience with a new webra 91P5 i got from Cliff Swartz. I was looking for a 2 stroke 90 for a warbird that could spin a nice scale looking propeller and was considering OS, ST, etc when i noticed on the webra site their 91P5. Its recommended props where 14-12, 16-8. Emailed Cliff and he had them in stock.
Got the engine and it looked great. First thing i noticed was a small carb for a .90 which makes sense for the large props. I think it is the same carb throat as the .50 uses.
I had no problems breaking it in and after a few tanks I could get 9500 on a 15-8.
The engine is now installed in a 60 size warbird and spinning a graupner 15-8 3 blade. I am impressed every time I run this engine. I get about 7000rpm or so and a 1400rpm idle if I want. Starts easily with a quick spinner twist and runs perfect through the whole throttle range. I have about 30 flights now on this engine and it just keeps getting stronger. It is expensive at $260ish but after running it, probably worth that.
Another thing about webra's, and it would be interesting to try to test, is that they seem to unload far more in the air than other brands and therefore are faster even with identical ground rpm.
any comments welcome,
|07-25-2008, 09:07 PM||#2|
★ Site Supporter ★
★ Site Supporter ★★ Administrator ★
I am: William A
Join Date: Mar 2006
Radio of choice:
Feedback: 85 / 100%
Total Props: 62
Re: New webra experience
My trainer was a Modeltech F14 Tamecat with a Webra 61. It was an awsum engine and never let me down. Lots of power and sounded great when you throttled back.
|07-26-2008, 03:09 PM||#3|
RCC Master Contributor
I am: Cheshire C
Join Date: Jan 2004
Location: Newmarket Ontario
Feedback: 13 / 100%
Total Props: 1
Re: New webra experience
I've had several Webra engines over the years - an old .20 with a steel cylinder and baffle top piston in the mid 1970's, a .61 blackhead in the late 1970's, a Speed .61 heli in the 1980's and later a Speed .91 with the Dynamix slide valve carb.
All were very easy starting by hand - just a couple of prop flips, except for the heli, of course, unless it had a prop installed. They were all much more powerful than the more generally used OS engines (which I also like) and all were paragons of reliability.
Easy handling, robust, high output and reliable. Sure they also cost a few dollars more than their competitors. However, in my opinion they were worth every cent of the price.
If the current models are anything loike mine, I'd suggest that you will be very pleased with your 91P5.
|Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)|