Engine Swap

[Don Bradner]

I'm not sure if that last question mark means you want me to explain why I said
it is likely that the assumption is wrong, or something else.

Assuming the former, my basis is empirical - it can easily be shown that a
typical pusher with side-mounted radiator will quickly overheat if there is not
a very large booster fan to suck lots of air in. Any natural flow is way too
weak. In my case, just going down a flat road with the fan idling at 600RPM I
see about 1 degree of temperature rise per 5 seconds until the fan kicks into
high speed.

On 12/17/2008 at 4:14 AM rwoodysurplus wrote:

>yes sir..
>
>we gotta try it for fun!
>
>never say never they tell me!
>
>too easy to change if we are wrong.
>
>Thanks! for putting the thinking cap on to show me the reason why?
>
>--- In WanderlodgeForum@yahoogroups.com, "Don Bradner"
> wrote:
>>
>> On 12/17/2008 at 3:32 AM rwoodysurplus wrote:
>>
>> >yes you are right--GOOD CATCH~!
>> >
>> >going to try that ...pushers suck air from the side
>> >
>> >why not the rear????
>>
>> Question: "why not the rear????"
>>
>> based on assumption: "pushers suck air from the side"
>>
>> Have you considered the (likely) possibility that the assumption is
>wrong? At least in terms of meaningful airflow?
>>
>> What would that do to your question?
>>
>> Don Bradner
>> 90 PT40 "Blue Thunder"
>> Posting today by aircard from Needles, California
>> My location: http://www.bbirdmaps.com/user2.cfm?user=1
>>
>
>
>
>------------------------------------
>
>Yahoo! Groups Links
>
>
>