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Search: Posts Made By: David Gladwin
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Forum: RC Jets
02-27-2021, 10:24 AM
Replies: 403
Views: 111,818
Posted By David Gladwin

Dont forget to strengthen the fin spar, if yours...

Dont forget to strengthen the fin spar, if yours from was from the same rubbish ply supplied from AirWorld.

If so you need to reinforce this spar with, , ideally, carbon fibre plate and cloth....
Forum: RC Jets
02-26-2021, 11:20 AM
Replies: 1
Views: 397
Posted By David Gladwin

Eneloops

I have four JR transmitters, 2 x 10x and 2 x 12x which I still use and which were changed to Eneloop 8 years ago.
prior to the new season I was checking them for capacity and internal resistance,...
Forum: RC Jets
02-18-2021, 11:33 AM
Replies: 46
Views: 2,228
Posted By David Gladwin

Glad you appreciate the good natured rivalry,...

Glad you appreciate the good natured rivalry, Alisdair. It was always a point of discussion, humour, as we taxied out at LHR in a VC10 for a long night sector to see all the Tridents parked for the...
Forum: RC Jets
02-18-2021, 10:26 AM
Replies: 46
Views: 2,228
Posted By David Gladwin

I wish you the best of luck Alisadair Not for...

I wish you the best of luck Alisadair Not for nothing did we BOAC VC 10 guys refer to the Tridents of BEA as the groungrippers ! The only 3 engined airliner to require a fourth engine to get...
Forum: RC Jets
02-16-2021, 02:02 AM
Replies: 9
Views: 685
Posted By David Gladwin

Thank you for that. Sonia has now confirmed...

Thank you for that.

Sonia has now confirmed my order for a120, a mate for my 45 now going into an early BVM F 16.

You must have a test engine as Sonia says mine wont be available til the 120...
Forum: RC Jets
02-15-2021, 10:44 AM
Replies: 9
Views: 685
Posted By David Gladwin

Xicoy 120/90

Anyone using these. engines yet, impressions ?
I have a 45, hugely impressive engine.
Forum: RC Jets
02-12-2021, 01:42 AM
Replies: 8
Views: 791
Posted By David Gladwin

Dont worry , many military engines with cartridge...

Dont worry , many military engines with cartridge or Avpin start , eg Rolls Royce Avon, were quicker than that, didn’t bother them !
Forum: RC Jets
02-10-2021, 12:57 AM
Replies: 1,377
Views: 215,856
Posted By David Gladwin

Just the small hot air exhaust lower rear right....

Just the small hot air exhaust lower rear right. Already have the APU ( GST). Exhaust used for lubing the long shaft bearing. That and the Rosemount probe.

That said, I may well modify my Hawk to...
Forum: RC Jets
02-08-2021, 12:04 PM
Replies: 650
Views: 84,876
Posted By David Gladwin

Sorry but yes I WAS assuming it was not an all...

Sorry but yes I WAS assuming it was not an all flying stab. My apologies.

In which case I withdraw that possibility but it is always possible the stab. was stalled for whatever reason, either ...
Forum: RC Jets
02-08-2021, 07:08 AM
Replies: 650
Views: 84,876
Posted By David Gladwin

OK a, fairly, educated guess having just looked...

OK a, fairly, educated guess having just looked at your pictures.

Your landing flap angle caused strong nosedown pitch , increasing as speed reduced.

The small elevators on a fixed tailplane...
Forum: RC Jets
02-08-2021, 01:58 AM
Replies: 650
Views: 84,876
Posted By David Gladwin

Really sorry to hear of your loss, tragic. I...

Really sorry to hear of your loss, tragic.

I am not going to try to determine the cause, but that 9 amp looks suspicious and I base that on having monitored currents on my large jets via...
Forum: RC Jets
02-06-2021, 09:41 AM
Replies: 1,377
Views: 215,856
Posted By David Gladwin

I very much look forward to seeing them, asap.

I very much look forward to seeing them, asap.
Forum: RC Jets
02-06-2021, 06:37 AM
Replies: 54
Views: 6,419
Posted By David Gladwin

Does anyone know the situation with Ditex servos,...

Does anyone know the situation with Ditex servos, have they been discontinued and if. so why ?
Forum: RC Jets
02-06-2021, 04:31 AM
Replies: 1,377
Views: 215,856
Posted By David Gladwin

That Rosemount probe looks superb. Dont need an...

That Rosemount probe looks superb. Dont need an APU, but would like to see your other scale bits as they become available, not least the hot air exhaust.

Do like your stab. actuation, much better...
Forum: RC Jets
02-05-2021, 11:03 AM
Replies: 1,377
Views: 215,856
Posted By David Gladwin

More please, my Hawk has just been given a big...

More please, my Hawk has just been given a big winter check, a few more scale details, eg hot air exhaust will make it even better !
Forum: RC Jets
02-02-2021, 07:35 AM
Replies: 193
Views: 27,776
Posted By David Gladwin

Excellent build and I wish you every success with...

Excellent build and I wish you every success with it!

Since I have a BVM F4 , same scale, but with AMT Pegasus power, about twice your thrust, a few points may help:

The BVM F4 tailpipes are...
Forum: RC Jets
01-31-2021, 10:27 AM
Replies: 13
Views: 1,045
Posted By David Gladwin

No sure what you mean by dry air boosting the DA....

No sure what you mean by dry air boosting the DA.

Dry air is more dense than moist, thus lowering the DA.
Forum: RC Jets
01-30-2021, 01:48 AM
Replies: 13
Views: 1,045
Posted By David Gladwin

Well, if all well nothing to do, but if an engine...

Well, if all well nothing to do, but if an engine idles at 5000ft it MAY well be possible to reduce idle rpm as altitude is reduced.

I am not familiar with Kingtech, but I do know that the latest...
Forum: RC Jets
01-29-2021, 01:06 PM
Replies: 13
Views: 1,045
Posted By David Gladwin

Remember, you need to increase idle rpm as...

Remember, you need to increase idle rpm as altitude increases to keep combustion at efficient levels. The compressor needs to turn faster in the thin air to deliver the minimum pressure required for...
Forum: RC Jets
01-27-2021, 02:27 AM
Replies: 1,377
Views: 215,856
Posted By David Gladwin

Just been back to the early posts on this thread....

Just been back to the early posts on this thread.

It seems that early CARF versions DID have the pushrod system, using a carbon fibre rod instead of steel, but was changed to the current layout...
Forum: RC Jets
01-26-2021, 02:07 PM
Replies: 1,377
Views: 215,856
Posted By David Gladwin

Thank you done !

Thank you done !
Forum: RC Jets
01-26-2021, 10:13 AM
Replies: 1,377
Views: 215,856
Posted By David Gladwin

Yes, Dave, I know, but the lost SG Hawks did use...

Yes, Dave, I know, but the lost SG Hawks did use the pushrod system, which is why I mentioned it.

As far as I can see the CARF Hawks use dual servos hard mounted to the stab. which, I. believe. Is...
Forum: RC Jets
01-26-2021, 05:34 AM
Replies: 1,377
Views: 215,856
Posted By David Gladwin

We discussed this issue years ago. My Hawk...

We discussed this issue years ago.

My Hawk is having a deep inspection during lockdown, including changing the stab. servos to Futaba HPS a700s.
The one snag I have uncovered is the FRONT...
Forum: RC Jets
01-23-2021, 02:43 AM
Replies: 1,377
Views: 215,856
Posted By David Gladwin

I am working on my SG Hawk now giving it a...

I am working on my SG Hawk now giving it a thorough check after its certification flying.

You will struggle to get it under 20 kg, so Dave’s recommendations are good. Mine has a homebuilt...
Forum: RC Jets
01-19-2021, 10:39 AM
Replies: 18
Views: 1,084
Posted By David Gladwin

and sadly, Patricia Violett, wife of the late...

and sadly, Patricia Violett, wife of the late Bob, died on January 17th.

RIP, Pat.
Showing results 1 to 25 of 500
 


 
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