BMPT Forum Homepage
Forum Home Forum Home > Boats (In alphabetical order) > Seaplane Tenders
  New Posts New Posts RSS Feed - Performance Figures...
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Performance Figures...
 Post Reply Post Reply
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
FlyByWire View Drop Down
Groupie
Groupie


Joined: 21 April 2005
Location: United Kingdom
Status: Offline
Points: 53 		Post Options Post Options   Thanks (0) Thanks(0)   Quote FlyByWire Quote  Post ReplyReply Direct Link To This Post Topic: Performance Figures...
    Posted: 08 January 2007 at 7:10pm

Hello,

  I was wondering if anybody could furnish me with performance figures for the 40' SPT's?

  I'm trying to estimate probable litres/hour and range in NM, but I've really got nothing to go on...

  Can anybody correct my estimates or fill in the following blanks for me?

Planing Speed (kts):

20

Top Speed (kts):
25

Engine Capacity (cc):
3000

RPM at Planing Speed:
3000

Max RPM:
4500

Litres/Hour at Planing Speed:
80

Litres/Hour at Max Speed:

Tank Capacity (Litres):

250

Max Range (NM):
200

  Thanks for any help,

Paul



Edited by FlyByWire
Back to Top
FlyByWire View Drop Down
Groupie
Groupie


Joined: 21 April 2005
Location: United Kingdom
Status: Offline
Points: 53 		Post Options Post Options   Thanks (0) Thanks(0)   Quote FlyByWire Quote  Post ReplyReply Direct Link To This Post Posted: 08 January 2007 at 7:13pm

...sorry for the horrible formatting :(

...which I've now fixed :)



Edited by FlyByWire
Back to Top
FlyByWire View Drop Down
Groupie
Groupie


Joined: 21 April 2005
Location: United Kingdom
Status: Offline
Points: 53 		Post Options Post Options   Thanks (0) Thanks(0)   Quote FlyByWire Quote  Post ReplyReply Direct Link To This Post Posted: 19 February 2007 at 8:03pm

Surely I can't have foxed all you knowledgable chaps?

I've found that the fuel tanks were self-sealing 70 gallon items...

Can anybody help?

 

Paul
Back to Top
rafwebfoot View Drop Down
Senior Member
Senior Member


Joined: 15 May 2007
Location: Scotland
Status: Offline
Points: 111 		Post Options Post Options   Thanks (0) Thanks(0)   Quote rafwebfoot Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 2007 at 7:45pm

The 40ft Mk.1 performance is as follows

Maximum speed         & nbsp;     23.0 knots

Cruising speed         & nbsp;       20.0 knots

Duration at Max RPM         1/2 hour

Total fuel         &n bsp;         &n bsp;    130 gallons*

Endurance        &nb sp;         &nb sp;    290 miles*

* Craft Nos. 304-313, 367-399, 402-421, 425-435, 446-486 & 1520 fitted with 80 gallon tanks - endurance - 210 miles.  Craft Nos. 446 - 455 built in teak.

Props 16.75" Dia x 16.5" pitch - Left Hand. Tailshafts 1.25" dia.

Hope this answers your question.

 

 
FAIR WINDS AND A FAVOURABLE TIDE
Donald
Back to Top
FlyByWire View Drop Down
Groupie
Groupie


Joined: 21 April 2005
Location: United Kingdom
Status: Offline
Points: 53 		Post Options Post Options   Thanks (0) Thanks(0)   Quote FlyByWire Quote  Post ReplyReply Direct Link To This Post Posted: 22 May 2007 at 10:04am

Hi Donald,

thanks for that - the tanks were a lot bigger than I thought.  Would they have had a single fuel tank or one for each engine? 

Thanks for the information on the props - at some point in the future, I'm going to have to find a pair for my boat... Were they both left handed?  I had wondered whether they counter-rotated...

Thanks again,

Paul
Back to Top
rafwebfoot View Drop Down
Senior Member
Senior Member


Joined: 15 May 2007
Location: Scotland
Status: Offline
Points: 111 		Post Options Post Options   Thanks (0) Thanks(0)   Quote rafwebfoot Quote  Post ReplyReply Direct Link To This Post Posted: 22 May 2007 at 10:18pm

Yes both props were left handed and the fuel tank (single) was fitted in the aft peak.
FAIR WINDS AND A FAVOURABLE TIDE
Donald
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down