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Search: Posts Made By: Phil_and_Sand
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Forum: Military Aviation
23rd Feb 2020, 10:57
Replies: 5,343
Views: 1,770,365
Posted By Phil_and_Sand

Pobjoy, you have written this line loud and often...

Pobjoy, you have written this line loud and often but I do not believe you. The Vigilant is very close to a Grob 109. That aircraft has a current type certificate supported by a type certificate...
Forum: Military Aviation
1st Dec 2018, 07:51
Replies: 157
Views: 59,761
Posted By Phil_and_Sand

Why would a stealthy aircraft want huge external...

Why would a stealthy aircraft want huge external tanks? The only reason is for a ferry, but if you are AAR capable the justification weakens. How much gas does it take to lift 960g to ferry altitude?...
Forum: Private Flying
20th Sep 2018, 20:13
Replies: 4
Views: 1,299
Posted By Phil_and_Sand

If we don't help Lasham take this action then...

If we don't help Lasham take this action then Brize & Oxford will get all they have asked for. Who will be next? Perhaps Benson will ask for a 5nm radius class D? That would pretty much seal off...
Forum: Military Aviation
13th May 2018, 20:31
Replies: 5,343
Views: 1,770,365
Posted By Phil_and_Sand

Not viable for Grob to return some to service (9...

Not viable for Grob to return some to service (9 + 6?) with a Rotax in the front, and recoup that money by doing less work to the rest and selling them. Don't forget they would have to certify the...
Forum: Military Aviation
13th May 2018, 08:55
Replies: 5,343
Views: 1,770,365
Posted By Phil_and_Sand

Not financially viable?

Not financially viable?
Forum: Military Aviation
27th Dec 2017, 22:28
Replies: 5,343
Views: 1,770,365
Posted By Phil_and_Sand

Another case of never mind the truth for a good...

Another case of never mind the truth for a good story! A Chipmunk is a Chipmunk ... only mods for towing were bolting on a tow hook (on an A frame from the tailwheel/tailplane mount, run the release...
Forum: Flight Testing
26th Nov 2017, 22:21
Replies: 40
Views: 7,139
Posted By Phil_and_Sand

Not forgetting handling qualities and low...

Not forgetting handling qualities and low speed/stall behaviour.
Wing twist/wash out
Flutter considerations
Location of engines or weapon pylons
Any low observable demands

In practice in low...
Forum: Flight Testing
1st Sep 2017, 22:09
Replies: 10
Views: 2,909
Posted By Phil_and_Sand

Genghis, Any delay in visual representation...

Genghis,

Any delay in visual representation of actual (or preceived) motion greater than 100ms will make an aircraft more difficult to control. A (test) pilot will report the delay as degraded...
Forum: Military Aviation
1st Sep 2017, 22:02
Replies: 87
Views: 48,513
Posted By Phil_and_Sand

No, the crank gear on one engine was found...

No, the crank gear on one engine was found cracked. All other gearboxes are to be checked. I believe all gears are original manufacture, but have proven to be very reliable in service.
Forum: Military Aviation
1st Sep 2017, 21:57
Replies: 5,343
Views: 1,770,365
Posted By Phil_and_Sand

It is a complete scandal why and how the current...

It is a complete scandal why and how the current situation came to pass - but all the good words here will not make things any better.

What is required is commenting on the recent MAA revision to...
Forum: Military Aviation
1st Sep 2017, 21:29
Replies: 75
Views: 23,531
Posted By Phil_and_Sand

A thought on external tanks, if the F-35 makes...

A thought on external tanks, if the F-35 makes 1000nm+ straight line on internals (and I have heard it is considerably more) external tanks only really make sense for ferry flying. That means going...
Forum: Military Aviation
2nd Dec 2016, 21:02
Replies: 5,343
Views: 1,770,365
Posted By Phil_and_Sand

"As far as I know there is nothing to stop the...

"As far as I know there is nothing to stop the Vikings going on the G-reg, except the problems that currently are preventing most of them from flying.

You mention replacements. The Vikings are...
Showing results 1 to 12 of 12


 
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