|
02-12-2006, 01:14 AM
| #1 |
| Senior Member  Join Date: Dec 2005
Posts: 1,848
| Prop Spinners im rather confused, is a spinner like the Bf109F more efficient? if it wasnt, why didnt it retain the pointed spinner of the E series? why didnt some P-47s have a spinner? cause it was better?
__________________  "The German Luftwaffe always fought without any reserves. This is also the reason why we have pilots with extremely high numbers of victories." - General der Jagdflieger Adolf Galland"  |
|         |
|
02-12-2006, 07:28 AM
| #2 |
| IP/Mech THE GREAT GAZOO   Join Date: Apr 2005 Location: Colorado, USA
Posts: 16,880
| Depending on the type and configuration of the engine, spinners will provide aerodynamic streamlining and direct airflow into the engine cowl area for engine cooling. In addition, they provide protection for the propeller hub which houses a series of gears and a piston used to move the propeller blades for the desired pitch. Although the hub is rather beefy, at the front of most US controllable prop pitch hubs is a big plug that holds in hydraulic fluid if the prop is hydraulically actuated. Sometimes dirt could get under this plug and cause the prop to leak. Some propellers are electric and there are components on the hub used for propeller de-icing, so a hub might be necessary, again it depends on the configuration of the aircraft. Designers will determine the need for propeller hubs, in the case of the P-47 putting a spinner (which usually has a mounting plate and required hardware) was probably seen as a waste of time since engines were changed out so often, most of the time the propeller is removed first, depending on manufacturer requirements. If you notice propellers used on the P-47 actually had a hub that was somewhat pointy, I guess they were attempting to streamline it... In today's world some light aircraft use spinners but the manufacture may allow the aircraft to be operated without it.
__________________ > I Support Doug Gillis < |
|
| |
|
02-12-2006, 08:49 AM
| #3 |
| Der Crewchief  Join Date: Nov 2004 Location: Ansbach, Germany
Posts: 34,086
| I believe the spinner on the F was different than that of the E for several reasons including, better streamlining and different armament.
__________________  fly boy:"isnt that the first jet bomber becasue i have flown one in a flight sim before and i know how it handles" |
|
| |
|
02-12-2006, 02:34 PM
| #4 |
| Senior Member  Join Date: Dec 2003
Posts: 19,945
 | and of course most radials wont have large spinners because air has to get to the engine.........
__________________  "Reminds me of the time I sank the Tirpitz" comments a Spitfire pilot, "One pass of course, old boy." |
|
| |
|
02-12-2006, 09:07 PM
| #5 | |
| IP/Mech THE GREAT GAZOO Join Date: Apr 2005 Location: Colorado, USA
Posts: 16,880
| Quote:
__________________ > I Support Doug Gillis < | |
|
| |
|
02-13-2006, 06:41 AM
| #6 |
| Senior Member Join Date: Dec 2005
Posts: 1,848
| or staggered cylinders for better cooling
__________________ "The German Luftwaffe always fought without any reserves. This is also the reason why we have pilots with extremely high numbers of victories." - General der Jagdflieger Adolf Galland" |
|
| |
|
02-13-2006, 08:37 AM
| #7 | |
| IP/Mech THE GREAT GAZOO Join Date: Apr 2005 Location: Colorado, USA
Posts: 16,880
| Quote:
__________________ > I Support Doug Gillis < | |
|
| |
|
02-13-2006, 08:46 AM
| #8 |
| "Shooter"   Join Date: Sep 2004 Location: Moorpark, CA
Posts: 15,421
 | Plus staggered cylinders are easier to work on. Well, kind of.
__________________   For once you have tasted flight you will walk the earth with your eyes turned skywards, for there you have been and there you will long to return. Leonardo Da Vinci |
|
| |
|
02-13-2006, 08:47 AM
| #9 |
| IP/Mech THE GREAT GAZOO Join Date: Apr 2005 Location: Colorado, USA
Posts: 16,880
| YEP!!
__________________ > I Support Doug Gillis < |
|
| |
 |
| Thread Tools | |
| Display Modes | |
| |
Linear Mode
